JP5488984B2 - Display controller, display device, image processing method, and image processing program - Google Patents

Description

  The present invention relates to an apparatus for displaying different images for a plurality of viewpoints, and a signal processing method for image data to be displayed. In particular, the configuration of a display unit for improving the image quality of a display image, and for each viewpoint The present invention relates to an image data processing means for sending image data to a display unit, and an image data processing method.

  In recent years, with the development of mobile phones and PDAs (personal digital assistants), display devices are becoming smaller and higher definition. On the other hand, as a display device having a new added value, a display device that observes different images depending on a position where an observer observes the display device, that is, a display device that provides different images toward a plurality of viewpoints, or different from each other. A display device that uses a parallax image as an image and provides stereoscopic display to an observer has attracted attention.

  As a method for providing different images for a plurality of viewpoints, image data for each viewpoint is synthesized and displayed on a display unit, and the displayed synthesized image is formed of a barrier (light-shielding plate) having a lens and a slit. A system is known in which an image is separated by an optical separation means and an image is provided to each viewpoint. The principle of image separation is based on limiting the pixels that can be seen in each viewing direction using optical means such as a barrier having a slit or a lens. As the image separation means, a parallax barrier composed of a barrier having a large number of striped slits or a lenticular lens in which cylindrical lenses having a lens effect in one direction are arranged is generally used.

  There has been proposed a multi-viewpoint display device or a three-dimensional display device including the above-described optical image separation means and means for synthesizing a composite image to be displayed from image data for each viewpoint (for example, Patent Documents). 1). In Patent Document 1, pixel electrodes constituting a plurality of sub-pixels are provided in a display unit in a horizontal and vertical matrix, and scanning lines are provided horizontally and data lines are provided vertically on the boundary portions of the pixel electrodes. A display device that performs stereoscopic display using a liquid crystal panel provided with a TFT (thin film transistor) as a pixel switching element near the intersection of the data lines and a parallax barrier, and a display unit (liquid crystal display) when performing stereoscopic display A method for synthesizing a composite image to be displayed on a panel is disclosed.

  A stereoscopic display device using an optical image separation means is suitable for mounting on a portable device in that it does not require wearing special glasses and there is no troublesome wearing glasses. A mobile phone equipped with a stereoscopic display device including a liquid crystal panel and a parallax barrier has been commercialized (see, for example, Non-Patent Document 1).

  By the way, in the above-described method, that is, in a display device that provides different images toward a plurality of viewpoints using an optical separation unit, when the observer's viewpoint position moves and the image to be viewed changes, the image and The border of the image may appear dark. This phenomenon is caused by the fact that a non-display area (a light shielding portion generally called a black matrix in a liquid crystal panel) is visually recognized between pixels for each viewpoint. The above-mentioned phenomenon accompanying the observer's viewpoint movement does not occur in a general display device having no optical separation means. For this reason, the observer feels a sense of incongruity or a decrease in display quality in the above-mentioned phenomenon that occurs in a multi-viewpoint display device or a stereoscopic display device provided with an optical separation means.

  In order to improve the problems caused by the above optical separation means and the light shielding part, a display device has been proposed in which the shape and arrangement of the pixel electrode and the light shielding part of the display part are devised to suppress deterioration in display quality. (For example, patent document 2).

  FIG. 63 is a plan view showing a display unit in the display device described in Patent Document 2. FIG. An opening 75 shown in FIG. 63 is an opening of a sub-pixel that is a minimum unit for image display. The vertical and horizontal arrangement directions of the openings 75 are defined as a vertical direction 11 and a horizontal direction 12, respectively, as shown in FIG. The shape of each opening 75 is such that a trapezoid symmetrical in the vertical direction 11 and a rectangle in which the length of the lower base of the trapezoid and the length of the long side are equal to each other. It is the hexagon shape formed by arrange | positioning so that it may contact. The image separating means is a lenticular lens in which cylindrical lenses 30 a having the longitudinal direction 11 as the longitudinal direction are arranged in the lateral direction 12. The cylindrical lens 30a has no lens effect in the longitudinal direction and has a lens effect only in the short direction. That is, the lens effect is exhibited in the lateral direction 12. Therefore, the light emitted from the openings 75 of the sub-pixel 41 and the sub-pixel 42 adjacent to each other in the horizontal direction 12 is directed in different directions.

  The opening 75 is inclined in directions opposite to each other with respect to the vertical direction 11, and a pair of sides having the same angle between the extending direction and the vertical direction 11 are arranged. As a result, in the horizontal direction 12, the position of the end of the opening 75 of the display panel and the position of the optical axis of the cylindrical lens 30 a are relatively different in the vertical direction 11. Furthermore, the openings 75 adjacent to each other in the vertical direction 11 are arranged so as to be line symmetric with respect to the line segment extending in the horizontal direction 12. Also, the openings 75 adjacent to each other in the horizontal direction 12 are at the intersection of a line segment connecting the midpoints of both ends in the vertical direction 11 and a line segment connecting the midpoints of both ends in the horizontal direction 12. On the other hand, they are arranged so as to be point-symmetric.

  For this reason, the opening width in the vertical direction 11 is substantially constant regardless of the position in the horizontal direction 12 when the openings 75 of the sub-pixel 41 and the sub-pixel 42 are added together in the inclined portion.

  That is, in the display device described in Patent Document 2, assuming that the display panel cut surface is assumed in the vertical direction 11 perpendicular to the arrangement direction of the cylindrical lenses 30a at an arbitrary point in the horizontal direction 12, the light shielding portion (the wiring 70 and the light shielding portion). The ratio between the light shielding part 76) and the opening part is substantially constant. Therefore, even when the observer moves the viewpoint in the lateral direction 12 that is the image separation direction and the observation direction changes, the ratio of the light shielding portion to be visually recognized is substantially constant. That is, the observer does not observe only the light shielding part from a specific direction, and the display does not appear dark. That is, it is possible to prevent display quality from being deteriorated due to the light shielding region.

JP 2008-109607 A JP-A-2005-208567

Nikkei Electronics, January 6, 2003, no. 838, p. 26-27

  However, the related art described above has the following problems. In the display device of Patent Document 1, there is a problem that display quality is deteriorated due to the light shielding portion. The display device disclosed in Patent Literature 2 that solves the problem caused by the light shielding portion needs to maintain the aperture shape of the pixel electrode of the subpixel and the shape of the light shielding portion, and the switching means (TFT) serving as the light shielding portion is disclosed in Patent Literature 2. Unlike 1, the pixel electrode unit such as the vicinity of the intersection of the scanning line and the data line cannot be arranged at a uniform position. In addition, the display unit of the display device has a so-called aperture ratio that is determined by an area ratio of an opening that contributes to display luminance and a light-shielding unit in order to increase the definition, and to reduce the pixel pitch. Is required. In order to achieve a high aperture ratio while maintaining the aperture shape and the light shielding shape of the display section disclosed in Patent Document 2, not only the position of the switching means but also the connection between the switching means and the scanning lines and data lines. Unlike the related technology, the relationship cannot be made uniform for each pixel electrode. The fact that the connection relationship between the pixel electrode switching means and the scanning lines and the data lines is not uniform in units of pixel electrodes means that the composite image combining method according to the related art as shown in Patent Document 1 cannot be applied. .

[Object of invention]
The present invention has been made in view of such problems, and in a display device capable of displaying images toward a plurality of viewpoints, the shape and arrangement of sub-pixels for suppressing the problems caused by the above-described light-shielding portions are provided. To provide a display device including a display portion in which pixel electrodes, switching means, scanning lines, data lines, and the like are arranged and connected so as to maintain a high aperture ratio and display on the display portion described above An object of the present invention is to provide a means for synthesizing a synthesized image and a method for synthesizing the synthesized image.

A display controller according to the present invention includes:
The sub-pixels connected to the data line via the switching means controlled by the scanning line are arranged in m rows and n columns where m and n are natural numbers, and m + 1 scanning lines and at least n data. A display driven by lines;
To a display module comprising first image separation means for directing light emitted from the sub-pixel to a plurality of viewpoints in units of the sub-pixel,
A display controller that outputs composite image data,
An image memory for storing viewpoint image data for a plurality of viewpoints;
Write control means for writing the viewpoint image data input from the outside into the image memory;
Parameter storage means for storing a parameter indicating a positional relationship between the first image separation means and the display unit;
In accordance with a reading order determined by applying the parameters to a repetition rule determined by the arrangement, number of colors and color arrangement of the sub-pixels, the viewpoint image data is read from the image memory and the display module is used as the composite image data. Read control means for outputting to
It is provided with.

An image processing method according to the present invention includes:
The sub-pixels connected to the data line via the switching means controlled by the scanning line are arranged in m rows and n columns where m and n are natural numbers, and m + 1 scanning lines and at least n data. A display driven by lines;
First image separation means for directing light emitted from the sub-pixels to a plurality of viewpoints in units of the sub-pixels;
An image processing method for generating composite image data to be output to a display module comprising:
A parameter indicating a positional relationship between the image separating unit and the display unit is read from a parameter storage unit;
Perspective image data is input from outside for multiple viewpoints and written to the image memory.
In accordance with a reading order determined by applying the parameters to a repetition rule determined by the arrangement, number of colors and color arrangement of the sub-pixels, the viewpoint image data is read from the image memory and the display module is used as the composite image data. Output to
It is characterized by that.

An image processing program according to the present invention includes:
The sub-pixels connected to the data line via the switching means controlled by the scanning line are arranged in m rows and n columns where m and n are natural numbers, and m + 1 scanning lines and at least n data. A display driven by lines;
First image separation means for directing light emitted from the sub-pixels to a plurality of viewpoints in units of the sub-pixels;
An image processing program for generating composite image data to be output to a display module comprising:
A procedure for reading a parameter indicating a positional relationship between the image separation unit and the display unit from a parameter storage unit;
A procedure for inputting viewpoint image data from a plurality of viewpoints and writing it to the image memory,
In accordance with a reading order determined by applying the parameters to a repetition rule determined by the arrangement, number of colors and color arrangement of the sub-pixels, the viewpoint image data is read from the image memory and the display module is used as the composite image data. To output to the computer.

According to the present invention, by finding regularity in the connection pattern of scanning lines and data lines for a matrix of sub-pixels, scanning lines and data lines connected to sub-pixels arranged in an arbitrary number of rows and columns can be actually used. It can be obtained without designing. Further, it is possible to easily generate the composite image data from the found regularity, the installation condition of the image separation means, the color arrangement order of the sub-pixels, the arrangement pattern of the upper and lower sub-pixel pairs as the minimum unit, and the like. As a result, input image data having the same transfer format as that of a general flat display device can be used, so that a burden such as rearrangement of output image data is not imposed on the device to which the present invention is used. Furthermore, since the condition for generating the composite image data is parameterized and the means for storing the parameter is provided, the parameter can be changed with respect to the change of the display module, and there is no need to change the video signal processing means. It is possible to reduce design man-hours and reduce costs.

Schematic configuration diagram of the first embodiment of the present invention Functional block diagram of the first embodiment of the present invention The top view which showed four subpixels of 1st Embodiment of this invention Structure and equivalent circuit of upper and lower subpixel pair P2R of the present invention Structure and equivalent circuit of upper and lower subpixel pair P2L of the present invention Input image data in the first embodiment of the present invention First Example of Image Separation Meaning Arrangement of First Embodiment of the Present Invention Arrangement pattern 1 of the display part of 1st Embodiment of this invention Display pattern 2 of the first embodiment of the present invention Arrangement pattern 3 of the display unit of the first embodiment of the present invention Arrangement pattern 4 of the display part of 1st Embodiment of this invention Polarity distribution of gate line inversion drive in array pattern 2 of the first embodiment of the present invention Polarity distribution of gate 2 line inversion drive in array pattern 2 of the first embodiment of the present invention Polarity distribution of dot inversion driving in array pattern 2 of the first embodiment of the present invention Polarity distribution of dot inversion drive in array pattern 3 of the first embodiment of the present invention Polarity distribution of vertical 2-dot inversion driving in array pattern 4 of the first embodiment of the present invention Arrangement pattern 5 of the display unit of the first embodiment of the present invention Composite image data 1 of the first embodiment of the present invention 1: array pattern 1 Composite image data 2 of the first embodiment of the present invention: array pattern 2 Composite image data 3 of the first embodiment of the present invention: array pattern 3 Composite image data 4 of the first embodiment of the present invention: array pattern 4 Composite image data 5 of the first embodiment of the present invention: array pattern 5 Second Example of Image Separation Meaning Arrangement of First Embodiment of the Present Invention Even-odd scan line and viewpoint image of the first embodiment of the present invention Regularity in units of scanning lines in the first embodiment of the present invention Even / odd scan lines and data line usage state of the first embodiment of the present invention Example of lookup table for storing array pattern according to first embodiment of the present invention Example of lookup table for storing array pattern according to first embodiment of the present invention Storage parameters of the first embodiment of the present invention Flowchart of the first embodiment of the present invention Flowchart of the first embodiment of the present invention Flowchart of the first embodiment of the present invention Flowchart of the first embodiment of the present invention Flowchart of the first embodiment of the present invention Flowchart of the first embodiment of the present invention Flowchart of the first embodiment of the present invention 1 is a block diagram of an example terminal device to which a display device of the present invention is applied. Example of arrangement of image separation means according to second embodiment of the present invention Optical model of the second embodiment of the present invention Display pattern 6 of the second embodiment of the present invention Polarity distribution of vertical 2-dot inversion driving in array pattern 6 of the second embodiment of the present invention Input image data in the second embodiment of the present invention Composite image data 6 of the second embodiment of the present invention: array pattern 6 Functional block diagram of the second embodiment of the present invention The figure which shows the input data rearrangement of 2nd Embodiment of this invention. Functional block diagram of the third embodiment of the present invention Arrangement of image separation means according to the fourth embodiment of the present invention Functional block diagram of the fourth embodiment of the present invention The figure explaining the aspect conversion (planar display) of 4th Embodiment The figure explaining the aspect conversion (3D display) of 4th Embodiment Functional block diagram of the fifth embodiment of the present invention The timing chart which shows the 1st example of operation | movement of 5th Embodiment of this invention. Explanatory diagram of data transfer in dot-by-dot format used in the present invention The timing chart which shows the 2nd example of operation | movement of 5th Embodiment of this invention. Functional block diagram of a sixth embodiment of the present invention Timing chart showing the operation of the sixth embodiment of the present invention Example of input image data according to fifth to eighth embodiments of the present invention Functional block diagram of the seventh embodiment of the present invention Timing chart showing the operation of the seventh embodiment of the present invention The figure explaining the correspondence of the input data of this invention and the sub pixel of a display part Functional block diagram of the eighth embodiment of the present invention Timing chart showing the operation of the eighth embodiment of the present invention The top view which shows the display part in the display apparatus of related technology

  Embodiments of the present invention will be described below with reference to the drawings. In the following description, the direction in which scanning lines are arranged on the display panel is referred to as “vertical direction”, and the direction in which data lines are arranged is referred to as “horizontal direction”. Further, the arrangement of pixel electrodes in the vertical direction is referred to as “columns”, the arrangement of pixel electrodes in the horizontal direction is referred to as “rows”, and the pixel electrode matrix is expressed as m rows × n columns.

(First embodiment)
First, the outline of the first embodiment will be described mainly with reference to FIGS. 1 and 2. The display controller 100 according to the present embodiment outputs the composite image data CM to the display module 200. The display module 200 includes a display unit 50 and first image separation means (30). The display unit 50 includes m rows and n when the sub-pixels 40 connected to the data lines D1,... Via switching means (46: FIG. 3) controlled by the scanning lines G1,. Arranged in columns and driven by m + 1 scanning lines G1,... And at least n data lines D1,. The first image separation means (30) directs light emitted from the sub-pixel 40 to a plurality of viewpoints in units of sub-pixels 40. The display controller 100 includes an image memory 120 that stores viewpoint image data for a plurality of viewpoints, a writing control unit 110 that writes the viewpoint image data input from the outside into the image memory 120, and a first image separation unit. (30) is obtained by applying the parameters to the parameter storage means 140 for storing parameters indicating the positional relationship between the display unit 50 and the repetition rule determined by the arrangement, the number of colors and the color arrangement of the sub-pixels 40. Read control means 130 for reading the viewpoint image data from the image memory 120 and outputting it as the composite image data CM to the display module 200 in accordance with the read order. The first image separating means (30) corresponds to the lenticular lens 30, and the switching means (46: FIG. 3) corresponds to the TFT.

  The display unit 50 is configured with an upper and lower subpixel pair P2R (FIG. 4) or P2L (FIG. 5) composed of two subpixels 40a and 40b arranged with one scanning line Gy interposed therebetween as a basic unit. The switching means (46) included in each of the two sub-pixels 40a and 40b is commonly controlled by the scanning line Gy sandwiched between the two sub-pixels 40a and 40b, and is connected to different data lines Dx and Dx + 1. The upper and lower sub-pixel pairs P2R (FIG. 4) or P2L (FIG. 5) adjacent to each other in the extending direction of the scanning line Gy are arranged such that the switching means (46) is controlled by the different scanning lines Gy−1 and Gy + 1. .

  This will be described more specifically. The number of colors of the sub-pixel 40 is three colors, for example, a first color (R), a second color (G), and a third color (B). When y is a natural number, one of the two sub-pixels 40a and 40b of the upper and lower sub-pixel pairs P2R (FIG. 4) or P2L (FIG. 5) connected to the y-th scanning line Gy is the first color (R ) And the other color is the second color (G), and forms one of the even and odd columns of the display unit 50. One of the two sub-pixels 40a and 40b of the upper and lower sub-pixel pair P2R (FIG. 4) or P2L (FIG. 5) connected to the y + 1th scanning line Gy + 1 is the second color (G) and the other is the third color ( B), which forms the other of the even and odd columns of the display unit 50. One of the two sub-pixels 40a and 40b of the upper and lower sub-pixel pair P2R (FIG. 4) or P2L (FIG. 5) connected to the y + second scanning line Gy + 2 is the third color (B) and the other is the first color ( R) and forms one of the even and odd columns of the display unit 50. Of the two sub-pixels 40a and 40b of the upper and lower sub-pixel pairs P2R (FIG. 4) or P2L (FIG. 5) connected to the y + th scanning line Gy + 3, one is the first color (R) and the other is the second color (R). G), which forms the other of the even-numbered column and the odd-numbered column of the display unit 50, and is connected to the y + 4th scanning line Gy + 4, and the two subpixels 40a of the upper and lower subpixel pairs P2R (FIG. 4) or P2L (FIG. 5) , 40b, one is the second color (G) and the other is the third color (B), forming one of the even and odd columns of the display unit 50. One of the two sub-pixels 40a and 40b of the upper and lower sub-pixel pair P2R (FIG. 4) or P2L (FIG. 5) connected to the y + 5th scanning line Gy + 5 is the third color (B) and the other is the first color ( R), which forms the other of the even and odd columns of the display unit 50.

  At this time, the readout control unit 130 corresponds to the y-th scanning line Gy, and the readout colors are the first color (R) and the second color (G), and the viewpoint image to be read out is an even-numbered column of the display unit 50. The viewpoint image corresponding to one of the odd-numbered columns and corresponding to the (y + 1) th scanning line Gy + 1 are the second color (G) and the third color (B), and the viewpoint image to be read is the display unit 50. Viewpoint images corresponding to the other of the even-numbered columns and the odd-numbered columns, and the colors to be read are the third color (B) and the first color (R) corresponding to the y + second scanning line y + 2, and the viewpoint images to be read Is a viewpoint image corresponding to one of the even-numbered column and the odd-numbered column of the display unit 50, and the colors read out are the first color (R) and the second color (G) corresponding to the y + third scanning line Gy + 3. The viewpoint image to be read is paired with the other of the even-numbered column and the odd-numbered column of the display unit 50. Corresponding to the (y + 4) th scanning line Gy + 4, the colors to be read are the second color (G) and the third color (B), and the viewpoint images to be read are the even and odd columns of the display unit 50. Corresponding to the y + 5th scanning line y + 5, the read color is the third color (B) and the first color (R), and the read viewpoint image is an even number on the display unit 50. The viewpoint image data is read from the image memory 120 in accordance with a reading order corresponding to the viewpoint image corresponding to the other of the columns and the odd columns.

  The image processing method of the present embodiment is realized by the operation of the display controller 100 of the present embodiment. That is, the image processing method of the present embodiment is an image processing method for generating the composite image data CM to be output to the display module 200, and shows the positional relationship between the first image separation means (30) and the display unit 50. The parameters are read from the parameter storage unit 140, the viewpoint image data is input from the outside for a plurality of viewpoints and written to the image memory 120, and the repetition rule determined by the arrangement of the sub-pixels 40, the number of colors, and the color arrangement, The viewpoint image data is read from the image memory 120 and output to the display module 200 as the composite image data CM in accordance with the reading order obtained by applying the parameters. The details of the image processing method of the present embodiment conform to the operation of the display controller 100 of the present embodiment. In addition, since the image processing method in other embodiment is implement | achieved by the operation | movement of the display controller in other embodiment similarly to this embodiment, the description is abbreviate | omitted.

  The image processing program of this embodiment is for causing a computer to execute the operation of the display controller 100 of this embodiment. When the display controller 100 includes a computer including a memory, a CPU, and the like, the image processing program of the present embodiment is stored in the memory, and the CPU reads, interprets, and executes the image processing program of the present embodiment. That is, the image processing program of the present embodiment is an image processing program for generating the composite image data CM to be output to the display module 200, and the positional relationship between the first image separating means (30) and the display unit 50. Is determined by a procedure for reading the parameters indicating the parameter from the parameter storage unit 140, a procedure for inputting viewpoint image data from a plurality of viewpoints from outside and writing them into the image memory 120, and the arrangement, number of colors, and color arrangement of the sub-pixels 40 For causing the computer to execute a procedure of reading the viewpoint image data from the image memory 120 and outputting it as the composite image data CM to the display module 200 in accordance with a reading order obtained by applying the parameter to the repetition rule. Is. The details of the image processing program of the present embodiment conform to the operation of the display controller 100 of the present embodiment. In addition, since the image processing program in other embodiment is for making a computer perform the operation | movement of the display controller in other embodiment similarly to this embodiment, the description is abbreviate | omitted.

  According to the present embodiment, by finding regularity in the connection pattern of the scanning lines G1,... And the data lines D1,... With respect to the matrix of subpixels 40, the subpixels 40 are connected to any number of rows and columns. Can be obtained without actually designing the scanning lines G1,... And the data lines D1,. Also, the composite image data CM can be easily obtained from the found regularity, the installation condition of the first image separating means (30), the color arrangement order of the sub-pixels 40, the arrangement pattern of the upper and lower sub-pixel pairs P2R or P2L as the minimum unit, etc. Can be generated. As a result, input image data having the same transfer format as that of a general flat display device can be used, so that a load such as rearrangement of output image data is not imposed on the device in which the present embodiment is used. Furthermore, by providing the parameter storage means 140 that parameterizes the conditions for generating the composite image data CM and stores the parameters, the parameters can be changed with respect to the change of the display module 200, and the video signal processing means is changed. Therefore, it is possible to reduce design man-hours and reduce costs.

  Hereinafter, the first embodiment will be described in more detail.

[Description of configuration]
A configuration of the display device according to the first embodiment of the present invention will be described.
FIG. 1 is a schematic configuration diagram of a stereoscopic display device according to the present embodiment, which is an optical model viewed from the observer's head. The outline of the present embodiment will be described with reference to FIG. The display device according to the present embodiment includes a display controller 100 and a display module 200. The display controller 100 has a function of generating composite image data CM from first-viewpoint image data (left-eye image data) M1 and second-viewpoint image data (right-eye image data) M2 input from the outside. The display module 200 includes a lenticular lens 30 that is an optical image separation unit for the displayed composite image and a backlight 15 on the display panel 20 that is a display unit for the composite image data CM.

  The optical system of this embodiment will be described with reference to FIG. The display panel 20 is a liquid crystal panel and includes first image separation means (30) and a backlight 15. In the liquid crystal panel, a glass substrate 25 on which a plurality of subpixels 41 and 42 serving as a minimum display unit are formed, and a counter substrate 27 having a color filter (not shown) and a counter electrode (not shown) sandwich the liquid crystal layer 26. It is a structure. Polarizing plates (not shown) are attached to the surfaces of the glass substrate 25 and the counter substrate 27 opposite to the liquid crystal layer 26, respectively. Each of the sub-pixels 41 and 42 includes a transparent pixel electrode (not shown), and controls the polarization state of the transmitted light by applying a voltage to the liquid crystal layer 26 between each pixel electrode and the counter electrode of the counter substrate 27. To do. The light beam 16 emitted from the backlight 15 is intensity-modulated and colored by passing through the polarizing plate of the glass substrate 25, the liquid crystal layer 26, the color filter of the counter substrate 27, and the polarizing plate. The lenticular lens 30 is configured by arranging a plurality of cylindrical lenses 30 a having a lens effect in one direction in the horizontal direction 12. The lenticular lens 30 uses a plurality of sub-pixels on the glass substrate 25 alternately as a first-viewpoint (left-eye) subpixel 41 and a second-viewpoint (right-eye) subpixel 42, and is separated from the lens by a distance OD. On the observation surface 17, the projection images from the sub-pixels 41 are all overlapped, and the projection images from all the sub-pixels 42 are overlapped. With the above configuration, the left eye image including the sub-pixels 41 is provided to the left eye of the observer at the distance OD, and the right-eye image including the sub-pixels 42 is provided to the right eye.

  Next, details of the display controller 100 and the display panel 20 shown in FIG. 1 will be described. FIG. 2 is a block diagram of this embodiment showing a functional configuration from image input to image display.

  The display controller 100 includes a writing control unit 110, an image memory 120, a reading control unit 130, a parameter storage unit 140, and a timing control unit 150.

  The writing control unit 110 has a function of generating a writing address to be given to the input pixel data {Mk (row, column) RGB} according to a synchronization signal input along with the image data. Further, it has a function of giving a write address to the address bus 95 and writing input image data composed of pixel data to the image memory 120 via the data bus 90. The synchronization signal input from the outside is indicated by a single thick arrow in FIG. 2 for the sake of convenience. For example, the synchronization signal includes a plurality of signals such as a vertical and horizontal synchronization signal, a data clock, and a data enable.

  The read control unit 130 generates a read address according to a predetermined pattern according to the parameter information 51 of the display unit 50 given from the parameter storage unit 140 and the vertical control signal 61 and the horizontal control signal 81 from the timing control unit 150. A function of giving a read address to the address bus 95 and reading out the pixel data via the data bus 90, and a function of outputting the read data to the data line driving circuit 80 as composite image data CM.

  The parameter storage unit 140 has a function of storing parameters necessary for rearranging data in accordance with the arrangement of the display unit 50 described in detail later.

  The timing control means 150 has a function of generating a vertical control signal 61 and a horizontal drive signal 81 for driving the display panel 20 and outputting them to the read control means 130 and the scanning line drive circuit 60 and the data line drive circuit 80 of the display panel. Have. The vertical control signal 61 and the horizontal drive signal 81 are indicated by a single thick arrow for convenience in FIG. 2, but include a plurality of signals such as a start signal, a clock signal, and an enable signal.

  The display panel 20 includes a plurality of scanning lines G1, G2,... Gm, Gm + 1 and a scanning line driving circuit 60, a plurality of data lines D1, D2... Dn, Dn + 1, a data line driving circuit 80, and a plurality of sub-lines. A display unit 50 is provided in which pixels 40 are arranged in m rows × n columns. FIG. 2 is a diagram schematically showing the functional configuration, and the shapes and connection relationships of the scanning lines, data lines, and sub-pixels 40 will be described later. Although not shown, the sub-pixel 40 includes a TFT serving as a switching unit and a pixel electrode. The gate electrode of the TFT is connected to the scanning line, the source electrode is connected to the pixel electrode, and the drain electrode is connected to the data line. doing. The TFT is turned ON / OFF according to the voltage sequentially applied from the scanning line driving circuit 60 to the arbitrary scanning line Gy to be connected. When the TFT is turned on, a voltage is written from the data line to the pixel electrode. The data line driving circuit 80 and the scanning line driving circuit 60 may be formed on a glass substrate on which TFTs are formed, or may be mounted on a glass substrate using a driving IC or separately from the glass substrate. Good.

  Next, the structure of the sub-pixel 40 constituting the display unit 50 will be described with reference to the drawings. FIG. 3 is a top view seen from the observer explaining the structure of the sub-pixel 40 of the present embodiment. The size and scale of each component are appropriately changed and described in order to ensure the visibility of the drawing. In FIG. 3, the sub-pixel 40 is shown as two types of sub-pixels 40a and 40b depending on the shape direction. FIG. 3 is an example in which four subpixels constitute 2 rows × 2 columns as a part of the display unit 50 shown in FIG. 2. In the XY axes in FIG. 3, X indicates the horizontal direction and Y indicates the vertical direction. Furthermore, in order to explain the direction of image separation, FIG. 3 illustrates a cylindrical lens 30a constituting a lenticular lens. The cylindrical lens 30a is a one-dimensional lens having a semi-cylindrical convex portion, has no lens effect in the longitudinal direction, and has a lens effect only in the short direction. In the present embodiment, the longitudinal direction of the cylindrical lens 30a is arranged along the Y-axis direction, and a lens effect is obtained in the X-axis direction. That is, the image separation direction is the horizontal direction X.

  The four sub-pixels shown as sub-pixels 40a and 40b in FIG. 3 have three scanning lines Gy-1, Gy, and Gy + 1 arranged in parallel in the horizontal direction, and three data that bend in the horizontal direction that is the image separation direction. It has a substantially trapezoidal shape surrounded by lines Dx, Dx + 1, and Dx + 2. Hereinafter, the substantially trapezoidal shape is regarded as a trapezoid, and of the two parallel sides along the scanning line Gy,..., The short side is called the upper base E, and the long side is called the lower base F. That is, the subpixel 40a and the subpixel 40b have a trapezoidal direction opposite to the vertical direction Y, that is, the direction from the upper base E to the lower base F is opposite to each other.

  The subpixels 40a and 40b have a pixel electrode 45, a TFT 46, and a storage capacitor 47, respectively. The TFT 46 is formed at the intersection of the silicon layer 44 whose shape is indicated by a thick line in FIG. 3 and the scanning lines Gy,..., And has a drain electrode, a gate electrode, and a source electrode (not shown). The gate electrode of the TFT 46 is formed at the intersection of the scanning lines Gy,... And the silicon layer 44, and is connected to the scanning lines Gy,. The drain electrode is connected to the data lines Dx,. The source electrode is connected to a pixel electrode 45 whose shape is indicated by a dotted line in FIG. Further, the silicon layer 44 on the source electrode side with respect to the scanning lines Gy,... Forms a storage capacitor 47 between the storage capacitor line CS formed through an insulating film. The storage capacitor line CS is bent so as to connect the storage capacitors 47 of the sub-pixels adjacent to each other in the extending direction of the scanning lines Gy,. Further, the intersections between the storage capacitor lines CS and the data lines Dx,... Are arranged along the data lines Dx,.

  As shown in FIG. 3, the sub-pixel 40a and the sub-pixel 40b are point-symmetric with respect to the shape, arrangement, and connection relationship of the pixel electrode 45, the TFT 46, the contact holes 48 and 49, and the storage capacitor 47, which are the respective constituent elements. Are in a relationship. That is, in the XY plane, when the subpixel 40a including each component is rotated 180 degrees, the configuration shape matches that of the subpixel 40b.

  Note that the openings of the sub-pixels 40a and 40b arranged as described above have a ratio of the opening and the light-shielding portion in the Y-axis direction orthogonal to the image separation direction substantially to the X-axis direction that is the image separation direction. It is constant. The opening refers to a region that is surrounded by the scanning line, the data line, the storage capacitor line CS, and the silicon layer 44 and that is covered with the pixel electrode 45 and contributes to display. A region other than the opening is defined as a light shielding portion. Then, the ratio of the opening and the light shielding portion in the Y direction is a one-dimensional value obtained by dividing the length of the opening when the sub-pixel 40a or the sub-pixel 40b is cut in the Y-axis direction by the pixel pitch in the Y-axis direction. Is the aperture ratio. Hereinafter, the one-dimensional aperture ratio in the direction orthogonal to the image separation direction is referred to as the vertical aperture ratio.

  Therefore, in other words, the ratio of the opening portion and the light shielding portion in the Y-axis direction is substantially constant with respect to the X direction, in other words, the vertical opening along the line BB ′ shown in FIG. Rate (a value obtained by dividing the length of the opening of the sub-pixel 40a along the line BB ′ by the distance between the scanning lines Gy−1 and Gy) and the vertical aperture ratio along the line AA ′ ( (The value obtained by dividing the sum of the length of the opening of the sub-pixel 40b and the length of the opening of the sub-pixel 40a along the line AA ') by the distance between the scanning lines Gy-1 and Gy) is substantially equal. It is designed so that.

  The display unit of the present invention includes sub-pixels 40a and 40b having the above-described structure and characteristics. In the present invention, two sub-pixels 40a and 40b having different orientations are treated as one structural unit, and the sub-pixels 40a and 40b connected to a common scanning line Gy,. " Specifically, the sub-pixel 40a connected to the data line Dx + 1 and the sub-pixel 40b connected to the data line Dx connected to the scanning line Gy shown in FIG. Treat as a unit of display.

  (1) of FIG. 4 is a plan view showing the upper and lower sub-pixel pairs, and is a structural diagram of the upper and lower sub-pixel pairs extracted from FIG. (2) in FIG. 4 is an equivalent circuit of the upper and lower subpixel pairs shown in (1) in FIG. 4, and the scanning lines Gy,..., The data lines Dx,. . The upper and lower subpixel pairs shown in FIG. 4 are referred to as upper and lower subpixel pairs P2R. (3) of FIG. 4 is a diagram illustrating FIG. 3 by an equivalent circuit of the upper and lower subpixel pairs P2R, and four subpixels surrounded by dotted lines correspond to FIG. As shown in FIG. 4 (3), the four adjacent sub-pixels in FIG. 3 are composed of three upper and lower sub-pixel pairs. This is because the upper and lower subpixel pairs adjacent to each other in the extending direction of the scanning lines Gy,... Are connected to different scanning lines Gy,.

  The reason why the present embodiment having the display unit composed of the upper and lower sub-pixel pairs realizes high aperture ratio and high image quality in the stereoscopic display device will be described. In order to achieve high aperture ratio and high image quality, it is necessary to increase the vertical aperture ratio while keeping the vertical aperture ratio of the pixels constant regardless of the position in the image separation direction.

  First, the scanning line and the data line are preferably arranged around each pixel electrode. This is because if a scanning line or a data line having no pixel electrode is assumed between the scanning lines or the data lines, a dead space that does not contribute to display occurs between the wirings, and the aperture ratio decreases. In the present embodiment, as shown in FIG. 3, scanning lines Gy,..., Data lines Dx,. Further, the TFTs 46 included in the above-described upper and lower subpixel pairs are connected to different data lines Dx,. Further, the horizontal direction of the upper and lower subpixel pairs, that is, the arrangement of the scanning lines Gy,... In the extending direction are adjacent to each other with a shift of one subpixel in the vertical direction. Therefore, the upper and lower sub-pixel pairs adjacent in the extending direction of the scanning lines Gy,... Are connected to different scanning lines Gy,. With the above arrangement and connection relationship, the number of necessary wirings can be suppressed and the aperture ratio can be improved.

  Furthermore, the data line needs to be bent in the image separation direction in order to make the vertical aperture ratio constant regardless of the position in the image separation direction. Factors that limit the vertical aperture ratio include the bent oblique side structure, the structure between the lower bases in the substantially trapezoidal opening, and the structure between the upper bases. More specifically, as indicated by the line AA ′ in FIG. 3, in the vertical line that cuts the hypotenuse, the height (length) of the hypotenuse in the Y-axis direction and the height between the lower base ( The distance between two adjacent bottoms) affects the vertical aperture ratio. Further, as shown by the line BB ′ in FIG. 3, in the vertical line that cuts the TFT 46, the height between the upper bases (the distance between two adjacent upper bases) and the height between the lower bases are vertical openings. Affects the rate.

  What is common to the A-A ′ line and the B-B ′ line is the height between the lower bases. Therefore, first, a structure for minimizing the height between the lower bases is examined. As described above, it is necessary to arrange at least one scanning line between the lower bases. In order to minimize the height between the bottoms, it is preferable to keep the structure on one scanning line. For example, it is not preferable to dispose the TFT between the bottoms because the height between the bottoms increases accordingly. In particular, in the A-A ′ line, since the lower bottom portion is arranged in an overlapping manner, the influence when the height between the lower bottoms increases is very large. The arrangement of structures between the bottoms should be avoided as much as possible. Further, when the storage capacitor line is formed in the same layer as the scanning line, it is preferable not to arrange the storage capacitor line between the lower bases. Thereby, it is possible to reduce the process while reducing the height between the bottoms.

  Next, the height of the hypotenuse in the A-A ′ line will be considered. In order to reduce the height of the hypotenuse part, it is very important to reduce the width of the hypotenuse part. In order to reduce the width of the hypotenuse part, it is preferable not to arrange a structure as much as possible in the hypotenuse part. However, as described above, it is necessary to arrange at least one data line. In addition, when the storage capacitor line is formed in the same layer as the scanning line, the storage capacitor line can be arranged so as to overlap the data line. At this time, the intersection between the storage capacitor line CS and the data line D is arranged along the data line. Thereby, the height of the hypotenuse can be reduced, and the vertical aperture ratio can be improved.

  Finally, the height between the upper bases in the B-B ′ line will be considered. As described above, since it is not preferable to arrange the TFTs between the lower bases and the oblique sides, it is necessary to arrange the TFTs between the upper bases. And arrangement | positioning which reduces the height between upper bases becomes important. In the present embodiment, as shown in FIG. 3, the TFTs 46 are disposed between the upper bases. Further, since the silicon layer 44 is disposed so as to be stacked with the data lines Dx,... To prevent an increase in the light shielding portion, the aperture ratio can be improved.

  As shown in FIG. 3, it is most efficient to form the storage capacitor when the storage capacitor line CS is arranged near the TFT 46. This is apparent from the fact that the storage capacitor is formed between the electrode connected to the source electrode of the TFT 46 and the electrode connected to the storage capacitor line CS.

  As described above, the arrangement of the sub-pixels according to this embodiment shown in FIG. 3 achieves a high aperture ratio and high image quality in the stereoscopic display device. In other words, the display unit of the present embodiment, which includes the upper and lower subpixel pairs described above with reference to FIG. 4 and includes a plurality of upper and lower subpixel pairs, achieves a high aperture ratio and high image quality.

  Up to this point, the configuration of the display unit of the present embodiment has been described using the upper and lower subpixel pairs shown in FIGS. 3 and 4, but the upper and lower subpixel pairs P2L that are mirror images of the upper and lower subpixel pairs P2R shown in FIG. A configuration of a display unit using the can also be used. 5A is a plan view showing the structure of the upper and lower subpixel pair P2L, and FIG. 5B is an equivalent circuit of the upper and lower subpixel pair P2L. As shown in (1) of FIG. 5, the sub-pixels 40a ′ and 40b ′ constituting the upper and lower sub-pixels P2L are pixel electrodes that are constituent elements of the sub-pixels 40a and 40b shown in (1) of FIG. 45, TFT 46, contact holes 48 and 49, and the shape, arrangement, and connection relationship of the storage capacitor 47 are symmetrical with respect to the Y axis. That is, the upper and lower subpixel pairs P2R and the upper and lower subpixels P2L are line symmetric with respect to the Y axis, and are also line symmetric with respect to the X axis, and are in a mirror image symmetric relationship with each other.

  Therefore, the aperture ratio of the upper and lower subpixel pairs P2L shown in FIG. 5 is not changed from that of the upper and lower subpixel pairs P2R, and when the display unit is configured, the aperture ratio and the image quality are equally improved.

  Here, the subpixels connected to the common scanning lines constituting the upper and lower subpixel pairs are referred to as “upward subpixels” and “downward subpixels” according to the direction of the base F of the trapezoid, and are used in the following description. That is, in the upper and lower subpixel pairs P2R in FIG. 4, the subpixel 40a is an “upward subpixel” and the subpixel 40b is a “downward subpixel”. Similarly, in the upper and lower subpixel pairs P2L in FIG. 5, the subpixel 40a 'is an "upward subpixel", and the subpixel 40b' is a "downward subpixel". As described above, the upper and lower subpixel pairs P2R and P2L have the same optical effect obtained from the structure, but the data lines Dx and Dx + 1 connected to the upper and lower subpixels are reversed.

  The display unit of the present embodiment may be configured with either the upper / lower sub-pixel pair P2R or the upper / lower sub-pixel pair P2L. Further, the upper and lower subpixel pair P2R and the upper and lower subpixel pair P2L may be combined. Hereinafter, a configuration example of the display unit 50 according to the present embodiment illustrated in FIG. 2 will be described. First viewpoint image (left-eye image) and second viewpoint image (right-eye image) including pixels of 4 rows × 6 columns. This will be specifically described with reference to an example of displaying. First, the input image data will be described with reference to FIG. 6, and the image separation means and the color arrangement relationship of the display unit of this embodiment will be described with reference to FIG. Specific examples of the display unit will be described after the description of FIGS.

  FIG. 6 is a diagram illustrating image data of a first viewpoint image (left-eye image) and a second viewpoint image (right-eye image) including pixels of 4 rows × 6 columns. As described above, k represents the viewpoint (left and right), “i” is the row number in the image, “j” is the column number in the image, RGB is R: red, G: green, B: blue color. Means having information.

  FIG. 7 is an example of the display unit 50 that displays the two images shown in FIG. 6, and is a diagram illustrating an arrangement of image separation means and sub-pixel color schemes. In the XY axes in the figure, X indicates the horizontal direction and Y indicates the vertical direction.

In FIG. 7, subpixels are shown as trapezoids, and an example of color arrangement is shown by shading. Specifically, an R: red color filter is disposed on the counter substrate of the subpixels arranged in the horizontal direction in the first row, and the first row functions as a subpixel that displays red. A G: green color filter is arranged on the counter substrate of the subpixels arranged in the horizontal direction in the second row, and the second row functions as a subpixel that displays green. On the counter substrate of the subpixels arranged in the horizontal direction in the third row, a B: blue color filter is arranged, and the third row functions as a subpixel that displays blue. Similarly, after the fourth row, the sub-pixels function in order of red, green, and blue in units of rows. In the present embodiment, any order can be applied, and for example, repetition may be performed in the order of blue, green, and red from the first line.

  In the image separating means, the cylindrical lens 30a constituting the lenticular lens 30 corresponds to the sub-pixel two-row unit, and the longitudinal direction having no lens effect is arranged parallel to the vertical direction, that is, parallel to the row. For this reason, due to the lens effect in the X direction of the cylindrical lens 30a, the light rays emitted from the even-numbered and odd-numbered subpixels are separated in different directions. That is, as described with reference to FIG. 1, the image is separated into an even-numbered column image and an odd-numbered column image at a position away from the lens surface. In the present embodiment, as an example, with the arrangements of FIGS. 7 and 1, the even-numbered subpixels function as the left-eye (first viewpoint), and the odd-numbered subpixels function as the right-eye subpixel. .

  As described above, since the color filter and the image separation unit are arranged, one pixel of the input image shown in FIG. 6 is displayed by three sub-pixels of red, green, and blue arranged in one column in FIG. Specifically, the three sub-pixels in the first, second, and third rows in the second column display the upper left corner pixel of the left-eye (first viewpoint) image: M1 (1,1) RGB, and the 11th column. The three sub-pixels in the 10, 11, and 12 rows of the eye display the lower right corner pixel: M2 (4, 6) RGB of the right-eye (second viewpoint) image. In addition, the sub-pixel pitch for every two columns is equal to the sub-pixel pitch for every three rows, and the resolution at the time of stereoscopic display using the input left and right images as a parallax image, and the planar display using the input left and right images as the same image It has the characteristics that the resolution at the time is equal and there is no deterioration in image quality due to the change in resolution. Furthermore, since the same color is arranged in the direction of the lens effect, color separation by the image separation means does not occur, and high image quality is possible.

  Hereinafter, a connection example between a plurality of subpixels arranged in the matrix shown in FIG. 7 and scanning lines and data lines, that is, a specific example in which the display unit is configured from the upper and lower subpixel pairs shown in FIGS. 4 and 5 described above. This will be described with reference to FIGS.

  FIG. 8 shows an arrangement pattern 1 that constitutes the display unit from the upper and lower sub-pixel pairs P2R shown in FIG. The upper and lower subpixel pairs P2R are arranged starting from the arrangement in which the upward subpixels of the upper and lower subpixel pairs P2R are in the first row and the first column. At this time, in the first row of the even columns, the downward sub-pixels of the upper and lower sub-pixel pairs P2R are arranged, and the upward sub-pixel does not constitute a display unit. Similarly, in the twelfth row of the even column, the upward subpixels of the upper and lower subpixel pairs P2R are arranged, and the downward subpixels do not constitute a display unit. NP shown in FIG. 8 indicates that sub-pixels that do not constitute the display unit are not arranged. FIG. 8 corresponds to FIG. 7, and the shaded area of each sub-pixel indicates a display color, and even-numbered sub-pixels function as left-eye (first viewpoint) by optical separation means (not shown). The sub-pixels in the odd columns function as the right-eye sub-pixels.

  FIG. 9 shows an arrangement pattern 2 that constitutes the display unit from the upper and lower sub-pixel pairs P2L shown in FIG. FIG. 9 is the same as FIG. 8 except that the upper and lower sub-pixel pair P2R is changed to the upper and lower sub-pixel pair P2L, and a description thereof will be omitted.

  FIG. 10 is an arrangement pattern 3 as a first example constituting the display unit from the combination of the upper and lower subpixel pairs P2R shown in FIG. 4 and the upper and lower subpixel pairs P2L shown in FIG. As shown in FIG. 10, the first column starts from an arrangement in which the upper subpixels of the upper and lower subpixel pairs P2L are in the first row and first column, and in the vertical direction, the upper and lower subpixel pairs P2L and the upper and lower subpixel pairs P2R Repeatedly. In the second column, the upper and lower sub-pixel pairs P2R and the upper and lower sub-pixel pairs P2L are repeatedly arranged in the vertical direction starting from an arrangement in which the downward sub-pixels of the upper and lower sub-pixel pairs P2R are in the first row and second column. In the third column, an upper subpixel pair P2R and an upper and lower subpixel pair P2L are repeatedly arranged in the vertical direction, starting from an arrangement in which the upward subpixels of the upper and lower subpixel pairs P2R are in the first row and third column. In the fourth column, the upper and lower subpixel pairs P2L and the upper and lower subpixel pairs P2R are repeatedly arranged in the vertical direction, starting from an arrangement in which the downward subpixels of the upper and lower subpixel pairs P2L are in the first row and the fourth column. From the fifth column onward, the arrangement pattern from the first column to the fourth column is repeated. This arrangement pattern 3 has the effect of enabling high image quality when the dot inversion driving method is applied to the polarity inversion driving method. Details will be described later.

  FIG. 11 is an arrangement pattern 4 as a second example that configures the display unit from a combination of the upper and lower subpixel pairs P2R shown in FIG. 4 and the upper and lower subpixel pairs P2L shown in FIG. As shown in FIG. 11, the first column and the second column are configured by the upper and lower subpixel pairs P2L, starting from the arrangement in which the upward subpixels of the upper and lower subpixel pairs P2L are in the first row and the first column. The third and fourth columns are composed of upper and lower subpixel pairs P2R starting from an arrangement in which the upward subpixels of the upper and lower subpixel pairs P2R are in the first row and third column. After the fifth column, the above-described arrangement every two columns is repeated. This arrangement pattern 4 has the effect of enabling high image quality when the vertical two-dot inversion driving method is applied to the polarity inversion driving method. Details will be described later.

  As shown in FIGS. 8 to 11, the display unit composed of sub-pixels of 12 rows × 12 columns uses the upper and lower sub-pixel pairs as structural units, and therefore, 13 scanning lines G1 to G13 and data lines D1 to D13 are used. Thirteen of these are required. In other words, the display unit including m rows × n columns of sub-pixels according to the present embodiment is characterized by being driven by m + 1 scanning lines and n + 1 data lines.

  Further, the display unit of the present embodiment can be configured with various arrangement patterns other than those illustrated with the upper and lower subpixel pairs shown in FIGS. 4 and 5 as structural units.

  However, the difference in the arrangement pattern affects the polarity distribution of the display unit when the liquid crystal panel is driven for polarity inversion. Further, as can be seen from FIGS. 8 to 11, in the display unit of the present invention, the sub-pixels arranged in one row in the horizontal direction are alternately connected to two scanning lines, and the sub-pixels arranged in one column in the vertical direction are The two data lines are connected with regularity according to the arrangement pattern. For this reason, the polarity distribution obtained according to the polarity inversion driving method is different from that of a general liquid crystal panel in which one row of subpixels is connected to one scanning line and one column to one data line. It becomes. Hereinafter, the effect obtained for each arrangement pattern of the present embodiment when the polarity inversion driving method of a general liquid crystal panel is applied will be described in detail.

  FIG. 12 shows the polarity distribution of the display portion and the data line polarity for each scanning line of the gate line inversion drive when the gate line inversion drive (1H inversion drive) is applied to the array pattern 2 shown in FIG. is there. “+” And “−” in the figure represent the positive and negative polarities of the pixel electrode and the data line in an arbitrary frame (a period in which scanning of all scanning lines makes a round), and the positive and negative are reversed in the next frame. To do. The gate line inversion driving is a driving method in which the polarity of the data line is inverted every selection period of one scanning line, and the data line driving circuit is combined with so-called common inversion driving in which the common electrode on the opposite substrate side is AC driven. There is an advantage that the withstand voltage of the (data line driving driver IC) can be lowered and power consumption can be reduced. However, when applied to the present embodiment, as shown in the polarity distribution of FIG. 12, all the polarities of the pixel electrodes arranged in one column are the same. For this reason, the image separated by the image separation means, that is, the left-eye image composed of even columns and the right-eye image composed of odd columns are frame-reversed in which the polarity of the entire display image is reversed in units of frames. In the frame inversion, so-called flicker in which a display image flickers due to a luminance difference generated according to polarity is easily recognized. When flicker is visually recognized, flicker can be suppressed by increasing the frame frequency.

  When gate line inversion driving is applied to the present embodiment, driving in which the polarity is inverted for each of a plurality of scanning lines is more preferable as illustrated in FIG. FIG. 13 shows the polarity distribution of the display unit and the data line polarity for each scanning line of the gate 2 line inversion when the gate 2 line inversion driving (2H inversion driving) is applied to the array pattern 2 shown in FIG. It is. “+” And “−” in the figure indicate the polarity as in FIG. From the polarity distribution of FIG. 13, the separated left-eye image and right-eye image are each inverted in polarity for every two rows of sub-pixels. For this reason, flicker can be suppressed and high image quality can be achieved.

  FIG. 14 shows the polarity distribution of the display unit and the data line polarity for each dot inversion scanning line when dot inversion driving is applied to the array pattern 2 shown in FIG. “+” And “−” in the figure indicate the polarity as in FIG. As shown in FIG. 14, dot inversion driving is a driving method that inverts the polarity for each data line and further inverts the polarity of the data line for each selection period of one scanning line. It is known as a method for suppressing and improving image quality. When dot inversion driving is applied to the array pattern 2 of the present embodiment, as shown in the polarity distribution of FIG. 14, the polarity is the same in units of rows when focusing only on the odd columns (that is, all the odd columns in one row). The polarity is the same), and the same applies when focusing only on even-numbered columns. For this reason, each of the separated left-eye image and right-eye image has the same flicker suppression effect as when a general panel is driven by gate line inversion driving (1H inversion driving).

  FIG. 15 shows the polarity distribution of the display unit and the data line polarity for each scanning line for dot inversion when dot inversion driving is applied to the array pattern 3 shown in FIG. “+” And “−” in the figure indicate the polarity as in FIG. As shown in the polarity distribution of FIG. 15, when attention is paid only to odd columns, polarity inversion is repeated in units of columns in the first column, the third column, the third column, the fifth column,. The same applies to the case where only the focus is on. Focusing on the polarity distribution in the column, the pixel electrodes adjacent to each other in the vertical direction of the upper and lower subpixel pairs P2L and P2R have the same polarity, and the polarity is inverted every two rows. For this reason, the long sides of the pixel electrode represented by a trapezoid, that is, the lower bases of the sub-pixels have the same polarity, so that abnormal alignment of liquid crystal molecules in the vicinity of the lower base can be suppressed and high image quality can be achieved. In addition, in each of the separated left-eye image and right-eye image, the column whose polarity is inverted every two rows of subpixels in the vertical direction is inverted in polarity, so that the effect of suppressing flicker is high and the image quality can be improved. .

  FIG. 16 shows the polarity distribution of the display unit and the data line polarity for each scanning line of vertical 2-dot inversion when vertical 2-dot inversion driving is applied to the array pattern 4 shown in FIG. “+” And “−” in the figure indicate the polarity as in FIG. As shown in FIG. 16, the vertical two-dot inversion driving is a driving method in which the polarity is inverted for each data line and the polarity of the data line is inverted every selection period of two scanning lines. Compared with dot inversion driving, the polarity inversion period for each data line is doubled, so that the power consumption of the data line driving circuit (data line driving driver IC) can be reduced. The polarity distribution in FIG. 16 is the same as the polarity distribution in FIG. For this reason, as in FIG. 15, abnormal alignment of liquid crystal molecules in the vicinity of the lower base can be suppressed, and the effect of suppressing flicker is high and high image quality can be achieved.

  As described above, the combination of the display unit array pattern and the polarity inversion driving method may be appropriately selected according to the target display image quality, power consumption, and the like. In addition, the display unit of the present embodiment can be applied to an arrangement pattern other than that illustrated and a polarity inversion driving method other than that illustrated. For example, the arrangement pattern 5 shown in FIG. 17 can be applied. The array pattern 5 forms a display unit from the upper and lower subpixel pairs P2R shown in FIG. 4 and starts from an arrangement in which the upward subpixels are in the first row and the second column. The arrangement pattern 5 shown in FIG. 17 and the arrangement pattern 1 shown in FIG. 8 composed of the same pair of upper and lower sub-pixels P2R are in a relationship of being moved in the horizontal direction by one column.

  However, the composite image data CM output to the data line driving circuit 80 shown in FIG. 2 must be changed according to the change in the array pattern. The composite image data CM is image data synthesized from the input images M1 and M2, and is written to the data line driving circuit 80 in order to write a voltage to each pixel electrode of the display unit 50 formed of m rows × n columns of subpixels. The data to be input. That is, the composite image data CM is obtained by rearranging the pixel data constituting the input image data M1 and M2 for each scanning line from the scanning lines G1 to Gm + 1 so as to correspond to the data lines D1 to Dn + 1. It is expressed by a data structure of Gm + 1 row Dn + 1 column.

  Therefore, as can be seen from the array patterns 1 to 5 shown in FIG. 8 to FIG. 11 and FIG. 17, even in the sub-pixels specified by the same matrix, the connected data lines or scanning lines differ depending on the array pattern. Therefore, the composite image data CM is also different.

  As a specific example, FIGS. 18 to 22 show composite image data CM when the input image data shown in FIG. 6 is displayed on the display units of the array patterns 1 to 5 in which the image separating means is arranged as shown in FIG. 18 to 22 show the position and color of input pixel data to be given to an arbitrary data line Dx when an arbitrary scanning line Gy is selected. M1 / M2 is a viewpoint image, (row number, column number) is a position in the image, and R / G / B is a color. Further, a cross indicates that there is no pixel electrode. Of course, there is no input image data M1 and M2 that should correspond to the x mark, and there is no pixel electrode that reflects the given data, and therefore the data given to the x mark is arbitrary.

  The composite image data CM is based on the color filter color arrangement shown in FIG. 7, the arrangement patterns shown in FIGS. It is possible to generate from the regularity of connection and regularity of data line unit.

  The regularity in units of scanning lines will be described.

  In the present embodiment, the viewpoint image M1 / M2 to be displayed is specified by even / odd scanning lines. This is because in the arrangement of the upper and lower sub-pixel pairs constituting the display unit, the same scanning line cannot be arranged in two columns, and the upper and lower sub-pixel pairs sharing the same scanning line are always arranged every other column. It is. That is, the even / odd of the scanning line corresponds to the even / odd of the column of the sub-pixel array. Further, this is because the designation of the viewpoint images M1 / M2 is determined for each column of subpixels by the image separation means.

  The elements that determine the evenness and oddness of the scanning lines and the viewpoint images M1 / M2 are the arrangement of the image separation means and the arrangement pattern.

  The installation of the image separation means is not limited to that shown in FIG. 7, and for example, the installation shown in FIG. In FIG. 7, as described above, the first column is M2, the second column is M1, that is, the odd column sub-pixel is M2, and the even column sub-pixel is M1. In the case of FIG. 23, the first column is M1, the second column is M2, that is, the odd-numbered subpixels are M1 and the even-numbered subpixels are M2. Thus, even / oddness of the column in which the viewpoint images M1 / M2 are displayed is determined by the arrangement of the image separation means.

  The odd / even of the scanning lines corresponding to the odd-numbered columns and the even-numbered columns of the display unit is determined depending on whether the subpixel arranged in the first row and the first column of the display unit is the upward subpixel or the downward subpixel. FIG. 8 is an arrangement example in which the first row and the first column are upward sub-pixels, and FIG. 17 is an arrangement example in which the first row and the first column are downward sub-pixels. Here, the upper and lower sides of the subpixel arranged in the first row and the first column are set as a variable “u”. When u = 0, the first row and the first column are upward subpixels, and when u = 1, the first row and the first column Is a downward sub-pixel. As shown in FIGS. 8 and 17, when the first row and the first column are upward pixels, that is, when u = 0, the odd-numbered scan lines are connected to the even-numbered sub-pixels, and the even-numbered scan lines are the odd-numbered columns. Connected to sub-pixel. When the first row and the first column are downward pixels, that is, when u = 1, the odd-numbered scanning lines are connected to the odd-numbered subpixels, and the even-numbered scanning lines are connected to the even-numbered subpixels.

  FIG. 24 summarizes the relationship between the even / odd scan line determined from the above and the viewpoint image M1 / M2. In FIG. 24, the viewpoint of the input image corresponding to the odd number of scanning lines is represented as v1, and the viewpoint of the input image corresponding to the even number of scanning lines is represented as v2. In FIG. 24, for example, when the image separation means is installed so that the odd-numbered column of the display unit is M1 and the even-numbered column is M2, and when the 1 × 1 subpixel of the display unit is upward, v1 = 2. , V2 = 1. That is, the odd-numbered viewpoint image on the scanning line is M2, and the even-numbered viewpoint image on the scanning line is M1.

  R / G / B, which is the color of the first row, is determined by the color filter. Since one scanning line is connected to two rows of sub-pixels, if the color of the first row by the color filter and the color arrangement order are determined, the regularity of the color corresponding to the scanning line is determined.

  Furthermore, since the pixel data of the input image has RGB color information, one row represented by the input image “i” corresponds to three subpixel rows. Since the upper and lower sub-pixel pairs have sub-pixels arranged above and below one scanning line, one scanning line corresponds to two rows of sub-pixels. Accordingly, the relationship between the row of the input image and the scanning line has a periodicity of 6 scanning lines.

  FIG. 25 summarizes the regularity of each scanning line according to the present embodiment. An arbitrary scanning line Gy is expressed using an arbitrary natural number q, and the viewpoint M (k) of the input image corresponding to the upper and lower subpixel pairs connected by Gy (q), the color C1 (R / G / B) represents the color C2 (R / G / B) of the downward sub-pixel and the row (Ui / Di) of the upper and lower sub-pixels. Note that the input image row corresponding to the upward sub-pixel of the sub-pixel pair is Ui, and the input image row corresponding to the downward sub-pixel is Di. Using the regularity of FIG. 25, the viewpoint, color, and row of the input image on any scanning line Gy can be specified when generating the composite image data. However, as illustrated in FIG. 8 to FIG. 11 and FIG. 17, the first row (first row in the figure) and the last row (12th row in the figure) of the display unit are composed of upper and lower subpixel pairs including NP. The That is, the upper and lower subpixel pairs connected to the first line (illustrated G1) and the last line (illustrated G13) of the scanning line include NP. When the regularity of FIG. 25 is applied including NP, a line that does not exist in the input image (illustrated in FIG. 6) is specified for NP. Therefore, when the composite image data is actually generated using the regularity of FIG.

  Next, regularity in units of data lines will be described.

  Due to the configuration of the upper and lower subpixel pairs, two data lines are used for one column of subpixels, and n + 1 data lines are required for the n columns of subpixels of the display unit. However, as described above, the upper and lower subpixel pairs connected to one scanning line are arranged every other column. That is, one scanning line and upper and lower subpixel pairs are arranged in an odd number column or an even number column, and the number of upper and lower subpixel pairs connected to one scanning line is n / 2.

  Here, when attention is paid to the number of data lines connected to the sub-pixels for each scanning line, n data lines D1 to Dn are connected according to the evenness of the scanning lines, and Dn + 1 is not connected to the sub-pixels. The case is divided into the case where n lines from D2 to Dn + 1 are connected, and D1 is not connected to the sub-pixel. This is clear from the arrangement patterns of FIGS. 8 to 11 and FIG. 17 shown as specific examples.

  From the regularity of the scanning lines shown in FIG. 25, the viewpoint, row, and color of the corresponding input image data can be specified for an arbitrary scanning line. What is required for each data line is regularity regarding the correspondence between the number of the data line and the column number of the input image data. As described above, the number of upper and lower subpixel pairs connected to one scanning line is n / 2, the number of subpixels is n, and the number of data lines to be connected is n.

Therefore, the data array for one scanning line is sequentially represented by L (1), L (2),..., L (n) and variables, and is associated with the column order of the input image data. Note that the increasing direction of the L order is the same as the increasing direction of the data lines. As a specific example, using the composite image data 1 shown in FIG. 18 in which the image separation means of FIG. 7 is installed in the array pattern 1 shown in FIG.
L (1) = M2 (1,1) G,
L (2) = M2 (1,1) R,
L (3) = M2 (1,2) G,
L (4) = M2 (1,2) R,
...
L (11) = M2 (1,6) G,
L (12) = M2 (1,6) R
It becomes. In addition, using the figure, the data array of the scanning line G3 is shown.
L (1) = M1 (1,1) B,
L (2) = M1 (1,1) G,
L (3) = M1 (1,2) B,
L (4) = M1 (1,2) G,
...
L (11) = M1 (1,6) B,
L (12) = M1 (1,6) G
It becomes.

  As described above, when the data array number increases by 2, the column number of the input image increases by 1. This is because two sub-pixels of the upper and lower sub-pixel pairs are arranged in two columns, and the horizontal order of the upper and lower sub-pixel pairs connected to one scanning line is the column number of the input image data. It corresponds to.

  Therefore, if the natural number indicating the order in the horizontal direction (scanning line extending direction) of the upper and lower subpixel pairs connected to one scanning line is p, the column number of the input image data is also p. In FIG. 8, for odd scanning lines, p = 1 is the second column, p = 2 is the fourth column, p = 3 is the sixth column, p = 4 is the eighth column, and p = 5 is the tenth column. First, p = 6 indicates a pair of upper and lower sub-pixels connected to the odd-numbered scanning lines in the 12th column. In the even-numbered scanning lines, p = 1 is the first column, p = 2 is the third column, and p = 3 is The fifth column, p = 4 indicates the seventh column, p = 5 indicates the ninth column, and p = 6 indicates the upper and lower subpixel pairs connected to the even-numbered scanning lines in the eleventh column.

Here, when p is used in the example of FIG. 18, in the scanning line G2,
L (2p-1) = M2 (1, p) G,
L (2p) = M2 (1, p) R
In the scanning line G3,
L (2p-1) = M1 (1, p) G,
L (2p) = M1 (1, p) B
It becomes.

  That is, 2p-1 and 2p correspond to the order of the two data lines connected to the upper and lower subpixel pairs, and correspond to the color of the upward subpixel or the downward subpixel. The order of the data lines connecting the upward and downward subpixels is determined by the configuration of the upper and lower subpixel pairs (P2R / P2L) as shown in FIGS. 4 and 5, Dx and Dx + 1 indicating the order of the data lines connected to the upper and lower subpixel pairs are replaced with Dx = 2p-1 and Dx + 1 = 2p. That is, in P2R, the downward pixel corresponds to 2p-1 and the upward pixel corresponds to 2p, and in the case of P2L, the upward pixel corresponds to 2p-1 and the downward pixel corresponds to 2p.

  Therefore, information on the upper and lower subpixel pairs connected to an arbitrary scanning line is required. A scanning table is Gy, an upper and lower subpixel pair connected to Gy is represented as LUT (Gy, p), and a lookup table that returns a value of “0” for P2R and “1” for P2L according to the upper and lower subpixel pairs; To do.

  FIG. 27 corresponds to the arrangement pattern 3 in FIG. 10 and the arrangement pattern 4 in FIG. 11 as specific examples of the LUT (Gy, p). By using the LUT (Gy, p), the order of the upward pixel and the downward pixel in an arbitrary upper and lower subpixel pair can be known. Therefore, the regularity of the scanning line in FIG. The order of the two colors can be specified using the color C2. Note that the LUT (Gy, p) illustrated in FIG. 27 is represented by the upper and lower subpixel pair numbers (p) connected to the scanning lines of all the display units. However, paying attention to the repetitive pattern, as illustrated in FIG. And p can be compressed using lower bits when binary is used.

  As described above, using the regularity of p, LUT (Gy, p) and scanning lines, data L (1), L (2),..., L (n) for an arbitrary scanning line Gy. The viewpoint, row number, column number, and color of the input image corresponding to can be specified.

  If L (1) to L (n), which are data for one arbitrary scanning line Gy, are associated with the data lines D1, D2,... Dn, Dn + 1, the composite image data CM is completed.

  The relationship between the even / odd of the scan line and the data line connected to the sub-pixel is the same as the even / odd of the scan line and the even / odd of the sub-pixel column. It is determined whether it is a sub pixel or a downward sub pixel. Here, using a variable “u” indicating the top and bottom of the subpixel arranged in the first row and the first column, FIG. 26 shows the relationship between even / odd scan lines and data lines connected to the subpixels. As shown in FIG. 26, in the case of u = 0, when the scanning lines are odd, the data lines D2 to Dn + 1 are connected to the sub-pixels, and D1 is not connected. Similarly, when u = 0, when the scanning lines are even, the data lines D1 to Dn are connected to the sub-pixels, and Dn + 1 is not connected. When u = 1, the even and odd scan lines are reversed.

  According to FIG. 26, as in the following example, if data L (1) to L (n) for one scanning line is given to the data line, the composite image CM is completed.

If u = 0 and the scan line is odd,
CM (Gy, 1) = z,
CM (Gy, 2) = L (1),
CM (Gy, 3) = L (2),
...
CM (Gy, n) = L (n-1),
CM (Gy, n + 1) = L (n)
It becomes. If u = 0 and the scan line is even,
CM (Gy, 1) = L (1),
CM (Gy, 2) = L (2),
CM (Gy, 3) = L (3),
...
CM (Gy, n) = L (n),
CM (Gy, n + 1) = z
It becomes. “Z” indicates data given to a data line not connected to a sub-pixel.

  As described above, composite image data can be generated based on information and regularity. FIG. 29 summarizes parameter variables and specific examples of variable contents necessary for generating the composite image data. At least one set of the parameters shown in FIG. 29 is stored in the parameter storage unit 140 shown in FIG. By storing the parameters necessary for generating the composite image data, it is possible to cope with the design change of the display unit by changing the parameters. A plurality of parameters may be stored and switched according to the connected display panel.

[Description of operation]
The operation of this embodiment will be described with reference to the drawings.
FIG. 30 is a flowchart showing a one-frame display operation of the display device of this embodiment.

[Step S1000]
When the operation of the display device of the present embodiment is started, parameters necessary for generating a composite image from the parameter storage unit 140 shown in FIG. 2, the viewpoint v1 of the input image corresponding to the odd scan lines, the even number Viewpoint v2 of the input image corresponding to the scanning line, color filter color schemes CL1, CL2, CL3 from the first row to the third row, the number of rows m, the number of columns n in units of sub-pixels of the display unit 50, and the display unit 50 The orientation u of the sub-pixels arranged in one row and one column of the first and second and the array LUT of the upper and lower sub-pixel pairs of the display unit 50 are set in the read control unit 130.

[Step S1100]
Image data M1 and M2 composed of pixel data of i rows and j columns for each viewpoint are input from the outside to the write control means 110. In the writing control means, using the synchronization signal, M1 (1,1) RGB to M1 (i, j) RGB and M2 (1,1) RGB to M2 (i, j) constituting the input image data are used. An address that makes each pixel data up to RGB can be identified is generated, and the image data and the address are stored in the image memory 120. Note that the image memory 120 has an area corresponding to two screens of composite image data to be output, and alternately uses a read screen area and a write screen area.

[Step S1200]
The input image data M1 and M2 stored in the image memory 120 are read out according to a predetermined pattern, rearranged, and the combined image data CM is output to the data line driving circuit 80 of the display panel 20. The operation of the read rearrangement process will be described separately with reference to the flowchart shown in FIG.

[Step S2300]
When the read rearrangement process is completed, the display operation for one frame is completed. Returning to step S1100, the above operation is repeated.

  FIG. 30 is a flowchart for an area of one screen in the image memory. As described in step S1100, since the image memory 120 has an area for two screens, the writing process and the reading rearrangement process are actually performed in parallel.

  Next, details of the read rearrangement process will be described with reference to FIG. FIG. 31 is a flowchart showing the processing contents of step S1200, and shows processing for each scanning line from scanning lines G1 to Gm.

[Step S1300]
1 is given to the variables Gy, s, and q as initial values. Gy is a variable for counting the number of scanning lines, and the count value corresponds to the scanning line to be scanned. s is a variable for counting the period of 6 scanning lines shown in FIG. 25, and q is a variable to which 1 is added every time s is counted 6 times.

[Step S1400]
This is a data processing unit for the sub-pixel connected to the first line, that is, G1. The detailed contents of the head line processing will be separately described with reference to the flowchart shown in FIG. The n pieces of data including the data given to the sub-pixels selected by the first scanning line are stored in the line buffer.

[Step S1500]
The data stored in the line buffer for one scanning line is output to the data line driving circuit 80. The detailed contents of the output process will be separately described with reference to the flowchart shown in FIG. In the output process, the n data stored in the line buffer is processed to correspond to the data lines D1 to Dn + 1, and the combined image data CM of the scanning line Gy is completed and output to the data line driving circuit 80.

[Step S1600]
1 is added to the count values of s and Gy in accordance with the horizontal synchronization signal from the timing control means 150 shown in FIG.

[Step S1700]
It is determined whether the count value of Gy is the last scanning line Gm + 1 of the display unit. The determination uses the number of lines m of the display unit set in step S1000, and if m + 1 is not reached, the process proceeds to step S1800 with determination Yes, and if m + 1, the process proceeds to step 2100 with determination No.

[Step S1800]
This is a data processing unit for sub-pixels connected to the scanning line Gy, excluding the first line G1 and the last line Gm + 1. The detailed contents of the main line processing will be separately described with reference to the flowchart shown in the figure. The n pieces of data given to the sub-pixels selected by the scanning line Gy are stored in the line buffer. When the process of step S1800 is completed, the process proceeds to the output process of step S1500, and the composite image data CM of the scanning line Gy is completed and output to the data line driving circuit 80. When the process of step S1500 ends, the process proceeds to step 2000.

[Step S2000]
Judgment is made based on the count value of s. If s has not reached 6, the process proceeds to step S1600 with a determination Yes. If s is 6, the process proceeds to step 2000 with a determination No.

[Step S2100]
The count value of s is returned to 0, 1 is added to the count value of q, and the process proceeds to step S1600.

[Step S2200]
This is a data processing unit for sub-pixels connected to the last line, that is, Gm + 1. Details of the final line processing will be described separately with reference to the flowchart shown in FIG. The n pieces of data including the data given to the sub-pixels selected by the (m + 1) th scanning line are stored in the line buffer. When the process of step S2100 is completed, the process proceeds to the output process of step S1500, and the composite image data CM of the scanning line Gm + 1 is completed and output to the data line driving circuit 80.

  When the output process of step S1500 is completed following the process of step S2200, the read rearrangement process ends.

  Next, details of the top line processing will be described with reference to FIG. In the first line processing, input image data corresponding to the scanning line G1 is read and stored in the line buffer L. In the line buffer L, n pieces of sub-pixel data for one row of the display unit are stored in L (1), L (2),... L (n).

[Step S1410]
1 is given as an initial value to the variable p. The variable p is used to specify the order of the upper and lower sub-pixel pairs connected to the scanning line G1, to specify the column number of the pixel data to be read out, and to specify the data storage order in the line buffer.

[Step S1420]
Using the LUT, it is determined which of the data lines connected to the upper and lower subpixel pairs is the upper or lower subpixel that is connected to the data line that is earlier in order. When LUT (1, p) = 1, that is, when the upper and lower subpixel pair connected to the p-th scanning line G1 is P2L, the process proceeds to step S1430 with a determination Yes. When LUT (1, p) = 0, that is, when the upper and lower subpixel pair connected to the p-th scanning line G1 is P2R, the process proceeds to step 1450 with a determination No.

[Step S1430]
Data to be given to the upward subpixel in which the order of the data lines connected to the upper and lower subpixel pair P2L is fast is stored in the line memory L (2p-1). In the first line, that is, the scanning line G1, as can be seen from the arrangement patterns of FIGS. 8 to 11 and FIG. 17 shown as specific examples, there are no upward sub-pixels. Therefore, the data stored in L (2p-1) is not reflected in the display, but stores z. z is 0 as an example.

[Step S1440]
Subsequent to step S1430, the data to be supplied to the downward sub-pixel in which the order of the data lines connected to P2L is slow is stored in the line memory L (2p). First, the matrix and color of the pixel data of the input image read by M (v1) (1, p) (CL1) are designated. Here, v1 is the viewpoint image parameter of the scanning line G1, that is, the odd-numbered scanning line, the row number is 1 because it is the scanning line G1, the column number is the variable p, and CL1 is the color parameter of the first row. Next, the read address is decoded from M (v1) (1, p) (CL1), and stored in the data read PD from the image memory. This data PD is stored in the line memory L (2p).

[Step S1450]
Data to be given to the downward sub-pixel in which the order of the data lines connected to the upper / lower sub-pixel pair P2R is earlier is stored in the line memory L (2p-1). As in step S1440, the pixel data matrix and color of the input image to be read are designated by M (v1) (1, p) (CL1). The read address is decoded from M (v1) (1, p) (CL1), and data is read from the image memory and stored in the PD. This data PD is stored in the line memory L (2p-1).

[Step S1460]
Subsequent to step S1450, data to be given to the upward sub-pixel where the order of the data lines connected to P2R is slow is stored in the line memory L (2p). In the scanning line G1, there is no upward sub-pixel as described in step S1430. Therefore, the data stored in L (2p) is not reflected in the display, but stores z. z is 0 as an example.

[Step S1470]
It is determined whether or not the processing of the upper and lower subpixel pairs for one scanning line is completed based on the count value of p. The determination uses the number of columns n of the display section set in step S1000, and if the count value of p has not reached n / 2, the process proceeds to step S1480 with a determination Yes. The line process ends.

[Step S1480]
1 is added to the count value of p, and the process proceeds to step S1420.

  Next, details of the output process will be described with reference to FIG. In the output processing, the n data stored in the line buffer L is processed to correspond to the data lines D1 to Dn or D2 to Dn + 1, and the composite image data CM is completed and output to the data line driving circuit 80. To do.

[Step S1510]
This shows that the Gy value in the read rearrangement process is continuously used and the line buffer L stored in the read rearrangement process is used, and is not a step that particularly indicates execution of the process.

[Step S1520]
1 is given as an initial value for x. x is used to specify the order of the data lines, that is, to specify the column of the composite image data CM, and is a data transfer clock to the data line driving circuit 80 generated in the timing control means 150 shown in FIG. It is a count value.

[Step S1530]
It is determined whether or not the first data line D1 is connected to the sub-pixel and used for display. For the determination, the parameter u of the orientation of the sub-pixels arranged in the first row and the first column of the display unit 50 set in step S1000 and the scanning line count value Gy are used. As shown in FIG. 26, if u = 0 and the scanning line Gy is an even number, or if u = 1 and the scanning line Gy is an odd number, the data line D1 is used. If not, the process proceeds to step S1550 with a determination No.

[Step S1540]
Based on the count value of x, it is determined whether or not the processing has reached the last data line Dn + 1. The determination uses the column number n of the display unit set in step S1000. If the count value of x has not reached n + 1, the process proceeds to step S1541 with a determination Yes, and if the count value of x is n + 1, the process proceeds to step S1543 with a determination No.

[Step S1541]
The line buffer data L (x) is output to the composite image data CM (Gy, x). The composite image data is output to the data line driving circuit 80.

[Step S1542]
1 is added to the count value of x, and the process proceeds to step S1540.

[Step S1543]
At this time, X = n + 1. From the determination in step S1530, there is no subpixel connected to the data line Dn + 1. Therefore, although not reflected in the display, z is output to the composite image data CM (Gy, n + 1). z is 0 as an example. The composite image data CM is output to the data line driving circuit 80. Thus, since the data output to the data line Dn + 1 is completed, the output process is terminated.

[Step S1550]
Whether the process is the first data line D1 is determined by the count value of x. If x = 1, the process proceeds to step S1551 with a determination Yes, and if x is not 1, the process proceeds to step S1553 with a determination No.

[Step S1551]
At this time, X = 1. From the determination in step S1530, there is no subpixel connected to the data line D1. Therefore, although not reflected in the display, z is output to the composite image data CM (Gy, n + 1). z is 0 as an example. The composite image data is output to the data line driving circuit 80.

[Step S1552]
1 is added to the count value of x, and the process proceeds to step S1550.

[Step S1553]
The line buffer data L (x−1) is output to the composite image data CM (Gy, x). The composite image data CM is output to the data line driving circuit 80.

[Step S1554]
Based on the count value of x, it is determined whether or not the processing has reached the last data line Dn + 1. If the count value of x has not reached n + 1, the process proceeds to step S1552 with a determination Yes. If the count value of x is n + 1, the data output to the data line Dn + 1 has been completed, and the output process is terminated with a determination No.

  Next, details of the main line processing will be described with reference to FIG. FIG. 34 is a flowchart showing the processing content of step S1800. In the main line processing, the input image data corresponding to the scanning line Gy is read according to the regularity in units of scanning lines shown in FIG. 25, and n pieces of sub-pixel data for one row are stored in the line buffer L. FIG. 34 shows processing based on the regularity of FIG. 25, and storage processing in the line buffer will be described separately with reference to FIG.

[Step S1810]
This indicates that the Gy value, the s value, and the q value in the read rearrangement process are to be used as they are, and is not a step that particularly indicates the execution of the process.

[Step S1811-Step S1815]
This is a conditional branch based on the value of s, which is the period of every six scanning lines. Depending on the value 1 to 6 of s, the process proceeds to step S1821 to step S1826.

[Step S1821 to Step S1826]
In accordance with the value of s, as shown in FIG. 25, information on the viewpoint, color, and row that specifies the pixel data to be read is stored in each variable. The viewpoint is stored in variable k, the color of the upward sub-pixel is stored in variable C1, and the color of the downward sub-pixel is stored in variable C2, using the parameters set in step S1000. Further, the row of the input image of the upward sub-pixel is calculated from the variable Ui, and the row of the input image of the downward sub-pixel is calculated and stored in the variable Di.

[Step S1900]
Using the variables: k, Ui, Di, C1, and C2, data corresponding to the scanning line Gy is read and stored in the line buffer L. Details will be described separately with reference to the flowchart shown in FIG. When the line buffer process is completed, the main line process ends.

  Next, details of the line buffer storage processing will be described with reference to FIG. FIG. 35 is a flowchart showing the processing content of step S1900.

[Step S1910]
This indicates that the Gy value is continuously used and the variables k, Ui, Di, C1, and C2 stored in the main line process are used, and is not a step that particularly indicates the execution of the process.

[Step S1920]
1 is given as an initial value to the variable p. The variable p is used to specify the order of the upper and lower sub-pixel pairs connected to the scanning line Gy, to specify the column number of the pixel data to be read, and to specify the data storage order in the line buffer.

[Step S1930]
Using the LUT, it is determined which of the data lines connected to the upper and lower subpixel pairs is the upper or lower subpixel that is connected to the data line that is earlier in order. If LUT (Gy, p) = 1, that is, if the upper and lower subpixel pair connected to the p-th scanning line Gy is P2L, the process proceeds to step S1940 with a determination Yes. When LUT (Gy, p) = 0, that is, when the upper and lower subpixel pair connected to the p-th scanning line Gy is P2R, the process proceeds to step 1960 with a determination No.

[Step S1940]
Data to be given to the upward sub-pixel in which the order of the data lines connected to the upper / lower sub-pixel pair P2L is fast is stored in the line memory L (2p-1). The viewpoint, matrix, and color of the pixel data of the input image read by M (k) (Ui, p) (C1) are designated, the read address is decoded, and the data is read from the image memory to the PD. This data PD is stored in the line memory L (2p-1).

[Step S1950]
Subsequent to step S1940, the data to be supplied to the downward sub-pixel in which the order of the data lines connected to P2L is slow is stored in the line memory L (2p). The viewpoint, matrix, and color of the pixel data of the input image read by M (k) (Di, p) (C2) are designated, the read address is decoded, and the data is read from the image memory to the PD. This data PD is stored in the line memory L (2p). The process proceeds to step S1980.

[Step S1960]
Data to be given to the downward sub-pixel in which the order of the data lines connected to the upper / lower sub-pixel pair P2R is earlier is stored in the line memory L (2p-1). The viewpoint, matrix, and color of the pixel data of the input image read by M (k) (Di, p) (C2) are designated, the read address is decoded, and the data is read from the image memory to the PD. This data PD is stored in the line memory L (2p-1).

[Step S1970]
Subsequent to step S1960, data to be given to the upward sub-pixel where the order of the data lines connected to P2R is slow is stored in the line memory L (2p). The viewpoint, matrix, and color of the pixel data of the input image read by M (k) (Ui, p) (C1) are designated, the read address is decoded, and the data is read from the image memory to the PD. This data PD is stored in the line memory L (2p). The process proceeds to step S1980.

[Step S1980]
It is determined whether the processing of the upper and lower subpixel pairs for one scanning line is completed based on the count value of p. The determination uses the column number n of the display unit set in step S1000, and if the count value of p does not reach n / 2, the determination proceeds to step S1990 in determination Yes, and if the count value of p is n / 2. The line buffer storage process ends with the determination No.

[Step S1990]
1 is added to the count value of p, and the process proceeds to step S1930.

  Next, details of the final line processing will be described with reference to FIG. FIG. 36 is a flowchart showing the processing contents of step S2200 shown in FIG. In the final line processing, the input image data corresponding to the scanning line Gm + 1 is read and stored in the line buffer L.

[Step S2210]
This indicates that the Gy value, the s value, and the q value in the read rearrangement process are to be used as they are, and is not a step that particularly indicates the execution of the process.

[Step S2211]
This is a conditional branch based on the value of s, which is the period of every six scanning lines. The value of s in the last scanning line Gm + 1 of the display unit is s = 1 or s = 4 because the sub-pixel of the present embodiment is composed of three colors of R / G / B. If s = 1, the process proceeds to step S2212 with a determination Yes, and if s = 4, the process proceeds to step S2213 with a determination No.

[Step S2212, Step S2213]
In accordance with the value of s, as shown in FIG. 25, information on the viewpoint, color, and row that specifies the pixel data to be read is stored in each variable. The viewpoint is stored in variable k, the color of the upward sub-pixel is stored in variable C1, and the color of the downward sub-pixel is stored in variable C2, using the parameters set in step S1000. Further, the row of the input image of the upward sub-pixel is calculated from the variable Ui, and the row of the input image of the downward sub-pixel is calculated and stored in the variable Di. Proceed to step 2220.

[Step S2220]
1 is given as an initial value to the variable p. The variable p is used to specify the order of the upper and lower sub-pixel pairs connected to the scanning line Gm + 1, to specify the column number of the pixel data to be read, and to specify the data storage order in the line buffer.

[Step S2230]
Using the LUT, it is determined which of the data lines connected to the upper and lower subpixel pairs is the upper or lower subpixel that is connected to the data line that is earlier in order. If LUT (Gy, p) = 1, that is, if the upper and lower subpixel pair connected to the p-th scanning line Gy is P2L, the process proceeds to step S2240 with determination Yes. When LUT (Gy, p) = 0, that is, when the upper and lower subpixel pair connected to the p-th scanning line Gy is P2R, the process proceeds to step 2260 with a determination No.

[Step S2240]
Data to be given to the upward sub-pixel in which the order of the data lines connected to the upper / lower sub-pixel pair P2L is fast is stored in the line memory L (2p-1). The viewpoint, matrix, and color of the pixel data of the input image read by M (k) (Ui, p) (C1) are designated, the read address is decoded, and the data is read from the image memory to the PD. This data PD is stored in the line memory L (2p-1).

[Step S2250]
Subsequent to step S2240, data to be given to the downward sub-pixel in which the order of the data lines connected to P2L is slow is stored in the line memory L (2p). However, in the scanning line Gm + 1, as can be seen from the arrangement patterns of FIGS. 8 to 11 and FIG. 17 illustrated as specific examples, there are no downward sub-pixels. Therefore, the data stored in L (2p) is not reflected in the display, but stores z. z is 0 as an example. The process proceeds to step S2280.

[Step S2260]
Data to be given to the downward sub-pixel in which the order of the data lines connected to the upper / lower sub-pixel pair P2R is earlier is stored in the line memory L (2p-1). However, in the scanning line Gm + 1, there is no downward sub-pixel as described in step S2250. Therefore, the data stored in L (2p-1) is not reflected in the display, but stores z. z is 0 as an example.

[Step S2270]
Subsequent to step S2260, data to be given to the upward sub-pixel in which the order of the data lines connected to P2R is slow is stored in the line memory L (2p). The viewpoint, matrix, and color of the pixel data of the input image read by M (k) (Ui, p) (C1) are designated, the read address is decoded, and the data is read from the image memory to the PD. This data PD is stored in the line memory L (2p). The process proceeds to step S2280.

[Step S2280]
It is determined whether or not the processing of the upper and lower subpixel pairs for one scanning line is completed based on the count value of p. The determination uses the column number n of the display unit set in step S1000, and if the count value of p does not reach n / 2, the process proceeds to step S2290 in determination Yes, and if the count value of p is n / 2. The final line processing ends with the determination No.

[Step S2290]
1 is added to the count value of p, and the process proceeds to step S2230.

  As described above, the processing of the flowcharts shown in FIGS. 30 to 36 applies the regularity of 6 scanning lines and the arrangement pattern of the upper and lower sub-pixel pairs from the two viewpoint image data input from the outside, Image data CM can be generated and displayed on the display panel by combining and rearranging the pixel data. The process of the present embodiment described is an example, and the present invention is not limited to this. For example, the processing of the first line and the last line in which there are upper and lower subpixel pairs including NP is different from the main processing because there is no input image data corresponding to NP. However, the input image data is written in the image memory, and the data for generating the image data CM is read by addressing the image memory. Therefore, if it is possible to specify an address outside the input image data area and read data corresponding to the NP, the NP process can be performed in the main process. Since the data given to the NP is invalid for display, the main line processing can be applied as it is without dividing the first and last line processing as long as the NP addressing processing can be performed.

  The output from the line buffer to the data line driving circuit is a processing flow in which output is performed for each sub-pixel data. However, depending on the interface specification of the data line driving circuit, for example, from the line buffer, 3 sub-pixels are output. In some cases, the data is output in units of pixels and in units of 6 sub-pixels.

  The configuration and operation of the first embodiment of the present invention have been described above.

  FIG. 37 is a block diagram of an example terminal device to which the display device of this embodiment is applied. A terminal device 300A illustrated in FIG. 37A includes an input device 301, a storage device 302, a computing unit 303, an external interface 304, the display device 305A of the present embodiment, and the like. As described above, since the display device 305A of the present embodiment includes the display controller 100, data for two images may be sent in a format in which image data is sent from the computing unit 303 to a general display device. The two pieces of image data may be image data that is displayed in a plane on a general display panel. That is, since the display device 305A of the present embodiment includes the display controller 100, the computing unit 303 does not need to perform any processing on the two image data to be output, and the computing unit 303 is not burdened. is there. In addition, since the display controller 100 of the present embodiment includes the image memory 120 (FIG. 2), the two image data output from the computing unit 303 are in a format arranged in the horizontal direction showing the image in FIG. 37, a so-called side-by-side format. However, the present invention is not limited to this, and may be a vertically aligned format, a so-called dot-by-dot format, or a frame sequential format.

  A terminal device 300B illustrated in FIG. 37B has a configuration in which a display module 200B is different from the terminal device 300A illustrated in FIG. The display module 200B differs from the display module 200A in, for example, installation of image separation means, order of color filters, arrangement pattern of upper and lower subpixel pairs, and the like. The specifications of the display modules 200A and 200B are determined by various elements required for the display devices 305A and 305B from the terminal devices 300A and 300B, for example, image quality, cost, size, resolution, and the like. When the display module 200A is changed to the display module 200B, the composite image data input to the display module 200B must be changed. However, as described above, the display device 305B of the present embodiment includes the parameter storage unit 140 (FIG. 2) in the display controller 100, so that the same display controller 100 can be used even if the display module 200B is changed. . For this reason, the design man-hours of the display devices 305A and 305B can be reduced, and the cost of the display devices 305A and 305B can be reduced.

  In the present embodiment, the stereoscopic display device that provides separate images to both eyes of the observer by the image separation unit is shown as an example. However, a two-viewpoint display device that provides different images depending on the observation position may be used. Good.

  Further, in the present embodiment, the lenticular lens is used as the optical image separating unit and the lenticular lens is disposed on the viewer side of the display panel. However, the lenticular lens may be disposed on the opposite side of the viewer. Furthermore, a parallax barrier may be applied as the optical image separation means.

  Moreover, the display panel in this embodiment was demonstrated as what is a liquid crystal display panel using a liquid crystal molecule. As the liquid crystal display panel, not only a transmissive liquid crystal display panel, but also a reflective liquid crystal display panel, a transflective liquid crystal display panel, a slightly reflective liquid crystal display panel having a transmissive area ratio larger than a reflective area, and a reflective liquid crystal display panel. The present invention can also be applied to a micro-transmission type liquid crystal display panel having a large area ratio. Further, the driving method of the display panel can be suitably applied to the TFT method.

  TFTs in the TFT system are suitable not only for those using amorphous silicon, low temperature polysilicon, high temperature polysilicon, single crystal silicon, but also for organic materials such as pentacene, metal oxides such as zinc oxide, and those using carbon nanotubes. Applicable. The present invention does not depend on the structure of the TFT. A bottom gate type, a top gate type, a staggered type, an inverted staggered type, or the like can be suitably used.

  In the present embodiment, the upper and lower subpixel pairs have been described with the subpixel shape being substantially trapezoidal. The trapezoidal shape is not limited as long as the optical characteristics of the upper and lower subpixel pairs and the connection relationship with the scanning line and the data line are maintained. Even other polygonal shapes are applicable. For example, if the upper side of the trapezoid described in the present embodiment is shortened, a triangular shape is obtained. Furthermore, if the upward subpixel and the downward subpixel are 180 degrees rotationally symmetric, a hexagonal shape, an octagonal shape, or the like in which the scanning line is bent can be applied. Furthermore, in the present embodiment, the display unit has been described as having subpixels arranged in m rows in the vertical direction and n columns in the horizontal direction. However, the display unit has n rows in the vertical direction and m rows in the horizontal direction. The arrangement relationship between the scanning lines and the data lines may be exchanged.

  Further, the display panel can be applied other than the liquid crystal method. For example, an organic electroluminescence display panel, an inorganic electroluminescence display panel, a plasma display panel, a field emission display panel, or PALC (Plasma Address Liquid Crystal) can be applied.

(Second Embodiment)
A configuration of the display device according to the second embodiment of the present invention will be described. This is a display device that provides different images toward a plurality of N viewpoints, and the first embodiment is a display device with N = 2, whereas N is 4 or more. The second embodiment will be described below by taking as an example a stereoscopic display device that provides different images for four viewpoints where N = 4.

  First, an outline of the second embodiment will be described mainly with reference to FIG. The display controller 102 according to the present embodiment further includes input data rearranging means 160 that rearranges viewpoint image data of four or more viewpoints input from the outside into viewpoint image data of two viewpoints. The writing control unit 110 has a function of writing the viewpoint image data rearranged by the input data rearranging unit 160 in the image memory 120 instead of the viewpoint image input from the outside. Hereinafter, the second embodiment will be described in detail.

  The display unit in the second embodiment is composed of upper and lower subpixel pairs whose structures and equivalent circuits are shown in FIGS. Therefore, the description of the upper and lower subpixel pairs is the same as that in the first embodiment, and is omitted.

  FIG. 38 is an example showing the relationship between the image separating means and the display unit in the second embodiment. In the XY axes in the figure, X indicates the horizontal direction and Y indicates the vertical direction. Trapezoids arranged in 12 rows in the vertical direction and 12 columns in the horizontal direction represent the sub-pixels, and the shaded area indicates the color, and the color arrangement pattern repeats in order of R, G, and B for each row from the first row. Yes. The image separating means is arranged such that the cylindrical lens 30a constituting the lenticular lens 30 corresponds to the sub-pixel four-row unit, and the longitudinal direction is parallel to the vertical direction so as to have a lens effect in the horizontal direction. Due to the lens effect of the cylindrical lens 30a, the light rays emitted from the sub-pixels are separated in four columns in different directions in units of columns, and four viewpoint images are formed at positions away from the lens surface. Each of the four viewpoint images is composed of three RGB sub-pixels arranged in the vertical direction in units of columns. FIG. 38 shows the first viewpoint image pixel as M1P, the second viewpoint image pixel as M2P, the third viewpoint image pixel as MP3, and the fourth viewpoint image as MP4.

  FIG. 39 shows an optical model in which light rays emitted from MP4 from pixels M1P for each viewpoint form each viewpoint image. As shown in FIG. 39, the lenticular lens 30 is arranged on the viewer side of the display panel, and the projection images from all M1Ps of the display unit overlap on a plane that is a distance OD away from the lens surface, and similarly M2P, Projected elephants from M3P and M4P overlap and are arranged so that the width of the projected elephant overlap is maximum in the X direction. With this arrangement, regions of a first viewpoint image, a second viewpoint image, a third viewpoint image, and a fourth viewpoint image are formed in order from the left in the horizontal direction when viewed from the observer.

  Next, a connection relationship between the sub-pixels illustrated in FIG. 38, the scanning lines, and the data lines will be described. FIG. 40 shows an example in which the display unit of the second embodiment shown in FIG. 38 is configured by upper and lower subpixel pairs P2R and P2L. This is a pattern in which four columns composed of P2L and four columns composed of P2R are alternately repeated in the horizontal direction. The arrangement pattern 6 has an effect of enabling high image quality when the vertical two-dot inversion driving method is applied to the polarity inversion driving method.

  FIG. 41 shows the polarity distribution of the display unit and the data line polarity for each scanning line of vertical two-dot inversion when vertical two-dot inversion driving is applied to the array pattern 6 shown in FIG. As described with reference to FIG. 38, in the second embodiment, each viewpoint image is provided in a cycle of four columns. As shown in FIG. 41, each viewpoint image separated by applying vertical two-dot inversion driving by alternately arranging the upper and lower sub-pixel pairs P2R and P2L with a period of four columns corresponding to the periodicity of the viewpoint image. The polarities of the sub-pixels adjacent in the horizontal direction are reversed. In the polarity distribution in the column, the pixel electrodes adjacent in the vertical direction of the upper and lower subpixel pairs P2L and P2R have the same polarity, and the polarity is inverted every two rows. Accordingly, similarly to FIG. 15 which is the first embodiment, the abnormal alignment of the liquid crystal molecules in the vicinity of the lower base can be suppressed, and the effect of suppressing flicker is high and the image quality can be improved.

  Next, the composite image data provided to the display unit of the second embodiment in which the image separating means is arranged as shown in FIG. 42 shows image data for four viewpoints input from the outside, and FIG. 43 shows synthesized image data of the array pattern 6 synthesized from the input data of FIG. FIG. 42 is a diagram illustrating fourth viewpoint image data from a first viewpoint image including pixels of 4 rows × 3 columns. As described with reference to FIG. 6 in the first embodiment, in the Mk (i, j) RGB code, k represents a viewpoint, “i” is a row number in the image, “j” is a column number in the image, RGB means having luminance information of each color of R: red, G: green, and B: blue.

  The composite image data shown in FIG. 43 is similar to the first embodiment in that the rule for connecting the upper and lower subpixel pairs in units of scanning lines based on the setting parameters for the color separation of the image separation means and the color filter and the setting parameters for the arrangement pattern. And regularity of data line unit.

  FIG. 44 shows a functional block diagram of the second embodiment. As in the first embodiment, the display controller 102 generates composite image data CM from each viewpoint image data input from the outside, and the display panel 20 that is a display unit of the composite image data CM. Since the configuration of the display panel 20 is the same as that of the first embodiment, the same reference numerals are used and description thereof is omitted. The configuration of the display controller 102 is different from that of the first embodiment in that the input data rearranging unit 160 is provided. However, since the other configurations are the same, the same reference numerals are used and description thereof is omitted.

  The input data rearranging means 160 performs processing for rearranging N-viewpoint image data (N = 4 in FIG. 44) input from the outside into the two input image data formats described in the first embodiment. . A specific example will be described with reference to FIG.

As shown in FIG. 45, M1 ′ (i, j ′) RGB is obtained from the first viewpoint image M1 and the third viewpoint image, and M2 ′ (i, j ′) is obtained from the second viewpoint image and the fourth viewpoint image. ) Generate RGB respectively. Sort by column,
M1 ′ (i, 1) RGB = M3 (i, 1) RGB,
M1 ′ (i, 2) RGB = M1 (i, 1) RGB,
M1 ′ (i, 3) RGB = M3 (i, 2) RGB,
...
Rearrange M1 ′ (i, 6) RGB = M1 (i, 3) RGB. Similarly,
M2 ′ (i, 1) RGB = M4 (i, 1) RGB,
M2 ′ (i, 2) RGB = M2 (i, 1) RGB,
M2 ′ (i, 3) RGB = M4 (i, 2) RGB,
...
Rearrange M2 '(i, 6) RGB = M2 (i, 3) RGB. When the image data M1 ′ (i, j ′) RGB and M2 ′ (i, j ′) RGB generated in this way are sent to the write control means 110, the synthesis shown in FIG. 43 is performed by the processing operation described in the first embodiment. Image data can be generated.

  In FIG. 44, the input data rearranging means 160 is shown separately from the write control means 110, but is for explaining the configuration and may be included in the write control means 110. This is because the write control unit 110 can control the generated addresses in units of columns of the respective viewpoint images to execute the same process as the input data rearrangement process shown in the figure.

  In the second embodiment, a stereoscopic display device that provides different images for four viewpoints where N = 4 has been described as an example. However, the number of viewpoints is not limited to four, and more viewpoints can be supported. It is.

[effect]
As shown in FIG. 39, in the second embodiment, the observer can enjoy a stereoscopic image from different angles by changing the observation position as the number of viewpoints increases, and also gives motion parallax. Therefore, there is an effect of giving a more stereoscopic effect.

(Third embodiment)
A configuration of a display device according to the third embodiment of the present invention will be described.
FIG. 46 is a functional block diagram of the third embodiment. The difference from the first embodiment is that the display panel 23 includes a data line selection switch 170 controlled by a data line selection signal 171 output from the read control means 133 of the display controller 103. Since other configurations are the same as those of the first embodiment, the same reference numerals are used and description thereof is omitted.

  The data line selection switch 170 has a function of switching n outputs of the data line driving circuit 83 to the data lines D1 to Dn or D2 to Dn + 1 of the display unit 50 in response to the data line selection signal 171. By using this function, in the output process described with reference to the flowchart shown in FIG. 32 in the first embodiment, it is not necessary to perform data processing for associating the n data stored in the line buffer with the data lines D1 to Dn or D2 to Dn + 1. become. That is, in the third embodiment, the n data stored in the line buffer may be output to the data line driving circuit as it is, and a switching signal may be given to the data line selection signal 171. For this reason, the composite image data has a data structure of Gm + 1 rows × n columns.

  Note that the configuration of the second embodiment can be added to the configuration of the third embodiment described above to achieve multiple viewpoints.

[effect]
In the third embodiment, since the processing of the read control unit can be reduced, there is an effect that the circuit scale constituting the display controller 103 can be reduced as compared with the first embodiment. In addition, when a driving IC is used for the data line driving circuit 83, the number of outputs is n, which is the same as the number of columns of subpixels constituting the display unit, and the number of driving IC options increases, so that the cost can be reduced. is there.

(Fourth embodiment)
A configuration of the display device according to the fourth embodiment of the present invention will be described. In addition to the first embodiment, the stereoscopic display device further includes another image separating unit.

  First, an outline of the fourth embodiment will be described mainly with reference to FIGS. 47 and 48. The display controller 104 of this embodiment further includes input data vertical / horizontal conversion means 164 that rearranges viewpoint image data input from the outside as an image rotated 90 degrees left or right. The display module 201 includes a second image separation unit including an electro-optical element 180 that directs light emitted from the sub-pixel 40 to a plurality of viewpoints in units of the sub-pixel 40. The direction connecting the plurality of viewpoints where the electro-optic element 180 directs light is orthogonal to the direction connecting the plurality of viewpoints where the lenticular lens 30 directs light. The writing control unit 110 has a function of writing the viewpoint image data rearranged by the input data vertical / horizontal conversion unit 164 into the image memory 120 instead of the viewpoint image data input from the outside. Hereinafter, the fourth embodiment will be described in more detail.

  FIG. 47 is an example showing the relationship between the image separating means and the display unit in the fourth embodiment. In the XY axes in the figure, X indicates the horizontal direction and Y indicates the vertical direction. In FIG. 47, the sub-pixels constituting the display portion are represented by trapezoids, and are arranged in 12 rows in the vertical direction and 12 columns in the horizontal direction. The trapezoidal shades indicating the sub-pixels indicate colors in which the sub-pixels function by the color filter, and the three colors are repeated in the order of R, G, and B for each row from the first row. The connection of the sub-pixel to the scanning line and the data line is determined by the arrangement of the upper and lower sub-pixel pairs as in the first embodiment. Note that the sub-pixel pitch every two columns is equal to the sub-pixel pitch every three rows.

  On the viewer side of the display panel, as in the first embodiment, the lenticular lens 30 composed of the cylindrical lens 30a exhibits a lens effect in the horizontal direction, and the light rays emitted from the sub-pixels in the even and odd columns are separated. It is arranged so as to separate in the direction.

  On the opposite side of the display panel from the viewer, an electro-optical element 180 for displaying a parallax barrier pattern is arranged as a second image separation means. For example, a transmissive liquid crystal panel can be used as the electro-optic element 180, and when a parallax barrier pattern is displayed, the transmissive portion that functions as the slit 180a is disposed so as to be horizontal with respect to the display panel. Further, when the parallax barrier pattern is displayed, the light beams emitted from the sub-pixels in the even and odd rows are arranged to be separated in different directions. That is, when the observer's eyes are aligned in the horizontal direction and the observer rotates the display panel 90 degrees to the right from the arrangement shown in FIG. 46, the odd lines function as R: right-eye sub-picture, The rows are arranged so as to function as L: left-eye sub-pixels. For convenience of illustration, the slit 180a is shaded and highlighted. When the electro-optic element 180 actually displays a barrier pattern, the shaded portion (slit 180a) is a transmissive portion, and the portion other than the shaded portion is a light shielding portion. When viewed from the observer, when the display panel is rotated 90 degrees to the left, the RL indicating the function of the sub-pixel is switched.

  FIG. 48 shows a functional block diagram of the fourth embodiment. The display controller 104 is different from the first embodiment in that an input data vertical / horizontal conversion unit 164 and an image separation control unit 190 are provided. Since other configurations are the same as those of the first embodiment, the same reference numerals are used and description thereof is omitted. Further, the structure of the sub-pixel 40 constituting the display unit is the structure of the upper and lower sub-pixel pairs described with reference to FIGS. 4 and 5 as in the first embodiment, and the arrangement of the display unit 50 is the same as in the first embodiment. It is made up of upper and lower subpixel pairs.

  The input data vertical / horizontal conversion means 164 performs processing for converting image data M1 and M2 input from the outside into the data formats of the two input images described in the first embodiment when the display panel is rotated 90 degrees.

  The image separation control unit 190 controls the display / non-display of the barrier pattern shown in FIG. 47 for the second image separation unit (not shown) in accordance with the input control signal.

  The vertical / horizontal conversion processing by the input data vertical / horizontal conversion means 164 will be described with reference to the drawings.

  FIG. 49 is a diagram illustrating processing when the display panel is rotated 90 degrees to the right and no barrier pattern is displayed, that is, when flat display is performed. The display panel illustrated in FIG. 47 includes 4 rows × 6 columns in units of pixels including color information. Therefore, when rotated 90 degrees to the right, a 6 × 4 display panel is obtained. FIG. 49 shows 6 rows × 4 columns of input image data rM.

  Since the display panel is rotated 90 degrees to the right, the input data vertical / horizontal conversion means 164 rotates the matrix of the input image data rM 90 degrees to the left, and the data format of the two input images described in the first embodiment (illustrated is four lines). X6 column).

FIG. 49 shows M1 ′ (i ′, j ′) RGB and M2 ′ (i ′, j ′) RGB obtained by converting the input image data rM. As shown in FIG.
M1 ′ (1,1) RGB = rM (1,4) RGB,
M1 ′ (1,2) RGB = rM (2,4) RGB,
M1 ′ (1,3) RGB = rM (3,4) RGB,
...
M1 ′ (1,6) RGB = rM (6,4) RGB,
M1 ′ (2,1) RGB = rM (1,3) RGB,
...
M1 ′ (2,6) RGB = rM (6,3) RGB,
...
M1 ′ (4,6) RGB = rM (6,1) RGB,
M2 ′ (i ′, j ′) RGB has the same data array as M1 ′ (i ′, j ′) RGB.

  When the converted M1 ′ (i ′, j ′) RGB and M2 ′ (i ′, j ′) RGB are sent to the write control means 110 shown in FIG. 48, the display panel is operated by the processing operation described in the first embodiment. It is possible to generate composite image data according to the above. With the generated composite image, the input image rM can be displayed on the display panel shown in FIG. The observer can observe the input image rM with the display panel of FIG. 47 rotated 90 degrees to the right.

  Next, processing when the display panel is rotated 90 degrees right and a barrier pattern is displayed, that is, when stereoscopic display is performed using the second image separation unit, will be described. Here, the display panel illustrated in FIG. 47 is composed of 4 rows × 6 columns in units of pixels including color information. By the barrier display, sub-pixels adjacent in the Y direction are alternately left-eye sub-pixels and right-eye sub-pixels. It becomes a sub-pixel. For this reason, the resolution in the Y direction is halved. That is, in the example of FIG. 47, the separated left-eye image or right-eye image is an image of 6 rows × 2 columns.

  FIG. 50 shows input image data for the display panel illustrated in FIG. 47, that is, left-eye image data rM1 and right-eye image data rM2. As shown in FIG. 50, rM1 and rM2 are formed by arranging pixel data having color information of R: red, G: green, and B: blue in 6 rows × 2 columns. Since the display panel is rotated 90 degrees to the right, the input data vertical / horizontal conversion means 164 rotates the matrix of the input image data rM1 and rM2 90 degrees to the left. At this time, the image data for the left eye and the image data for the right eye are alternately arranged and synthesized in units of colors. As shown in FIG. 47, this is because the sub-pixels of the respective colors arranged in the Y direction are alternately used for the left eye and the right eye. Specifically, as shown in FIG. 47, in the pixel (1, 1) of the M1 image, the sub-pixel in the first column and the second column in the 10th row is rM1 (1,1) R, and the first column in the eighth row. The subpixel in the second column is rM1 (1,1) G, and the pixel in the first column and the second column in the 12th row is rM1 (1,1) B.

  As described above, the rM1rM2 composite image data illustrated in FIG. 50 is generated, and M1 ′ (i ′, j ′) RGB, M2 ′ (i) that matches the data format of the two input images described in the first embodiment. ', J') Output to the write control means 110 as RGB.

  Thus, the composite image data corresponding to the display panel can be generated by the processing operation described in the first embodiment, and the composite image of the input image Mr1Mr2 can be displayed on the display panel shown in FIG. Thus, if the input image rM1rM2 is a parallax image, the observer can observe the stereoscopic display with the display panel of FIG. 47 rotated 90 degrees to the right.

  As described above, in the configuration and operation of the fourth embodiment, the vertical / horizontal conversion when the display panel is rotated 90 degrees to the right has been described as an example. The present embodiment is not limited to the right 90 degree rotation, and can correspond to the left 90 degree rotation. In the case of 90 ° rotation to the left, the matrix conversion of the input image data in the 90 ° rotation described above may be changed from 90 ° rotation to 90 ° rotation to the left.

[effect]
In the fourth embodiment, in addition to the effects of the first embodiment, stereoscopic display can be enjoyed even when the display panel is rotated 90 degrees.

(Fifth embodiment)
A configuration of the display device according to the fifth embodiment of the present invention will be described. The display device according to the fifth embodiment has a configuration in which the image memory provided in the display controller in the first embodiment is not a frame memory but a plurality of line memories, and a memory area provided in the display controller is reduced.

  FIG. 51 shows a functional block diagram of the fifth embodiment. As in the first embodiment, the display controller 105 is configured to generate the composite image data CM from the viewpoint image data input from the outside, and the display panel 20 is a display unit for the composite image data CM. Since the configuration of the display panel 20 is the same as that of the first embodiment, the same reference numerals are used and description thereof is omitted. The configuration of the display controller 105 includes a line memory 125, a writing control unit 115 having a function of writing input image data into the line memory 125, and a reading control unit 135 having a function of reading data from the line memory 125. Is provided with timing control means 155 for generating each control signal. Since the other structure of the display controller 105 is the same as that of the first embodiment, the same reference numerals are used and description thereof is omitted.

  As described above, in the fifth embodiment, since the configuration of the image memory is not a so-called frame memory in which all input image data can be written and stored, there are restrictions on the transfer format of the input image data and the timing between the input data and the output data. Arise. The operation of the fifth embodiment will be described with reference to the timing chart shown in FIG.

  As an example of the fifth embodiment, FIG. 52 outputs the input image data shown in FIG. 57 to the display unit including the array pattern 1 shown in FIG. 8 in which the image separation means shown in FIG. Timing). In the example of FIG. 52, a so-called side-by-side format in which a plurality of viewpoint image data is transferred for each row is used as the transfer format of the input image data.

  T shown in FIG. 52 indicates one horizontal period of the display panel, and the input data M1 and M2 are pixel data of 4 rows × 6 columns shown in FIG. 57, and input data M1 (1) and M2 (1) These show the 1st line of the 1st viewpoint image data M1 shown in FIG. 57, and the 2nd line of the 2nd viewpoint image data M2. L1 to L6 are line memories that can store one row of input viewpoint pixel data. L1, L3, and L5 are first viewpoint image data, and L2, L4, and L6 are second viewpoint image data. Store. Outputs G1, G2,... G13 correspond to the scanning line numbers of the display unit shown in FIG. 8 and indicate data output to the sub-pixels connected to each scanning line. Here, by matching the three horizontal periods of the display panel output with the total period of the input period for inputting one row of M1 and the input period for inputting one row of M2, the input / output image update is matched in units of frames. . Although not shown in the timing chart, the horizontal period and the input period of the output described above are the period of the synchronization signal and include a so-called blanking period without valid data.

  Details of the operation will be described with reference to FIG. Input data M1 (1) is stored in L1 and M2 (1) is stored in L2 during the period from T1 to T3. At T4, M1 (2) is stored in L3, and at the same time, the subpixel data connected to the scanning line G1 is read from L1 in which M1 (1) is stored as described in the first embodiment. The information of the image separation means of FIG. 7 and the arrangement pattern 1 of FIG. 8 stored in the parameter storage means 140 and the data M1 (1) R determined from the regularity and to be given to the scanning line G1 are read from L1 and processed. And output to the display panel. At T5, data M2 (1) R and G to be given to the scanning line G2 are similarly read from L2, processed, and output to the display panel. Further, the storage of the input image data M2 (2) in L4 is started in the middle of T5. At T6, M1 (1) G and B to be applied to the scanning line G3 are read from L1, processed, and output to the display panel. At T7, M1 (3) is stored in L5, and at the same time, M2 (1) B is read from L2 and M2 (2) R is read from L4 as data to be applied to the scanning line G4, processed, and output to the display panel. . At T8, M2 (1) R and G are read from L3 as data to be applied to the scanning line G5, processed, and output to the display panel. Further, the storage of the input image data M2 (3) in L6 is started in the middle of T8. At T9, M2 (2) G and B to be applied to the scanning line G6 are read from L4, processed, and output to the display panel. At T10, M1 (4) is stored in L1. The reason why M1 (4) may be stored in L1 is that M1 (1) stored in L1 has been read out at T6 and does not need to be held. At the same time, at T10, data L3 to M1 (2) B and data L5 to M1 (3) R are read as data to be applied to the scanning line G7, processed, and output to the display panel. As described above, as shown in FIG. 52, the same processing is repeated for each scanning line, and output to the display panel is repeated.

  As described above, in the fifth embodiment, by using the line memories L1 to L6 as the image memory, the composite image data can be generated from the information stored in the parameter storage means and the regularity as in the first embodiment. . As described above, since reading of M1 (1) stored in L1 ends at T6, M1 (3) input at T7 can be stored in L1. However, similarly to the storage relationship of M1 (3) following M1 (1) in L1, M1 (4) cannot be stored in L3 following M1 (2). This is because, as shown in FIG. 52, at T10 to which M1 (4) is input, M1 (2) B stored in L3 is simultaneously read. Therefore, L5 for storing M1 (3) is provided, and storage subsequent to M1 (1) in L1 is M1 (4).

  The line memories L1 to L6 are line memories that can store one line of each viewpoint pixel data input as described above. These line memory areas are represented by the number of sub-pixels constituting the display unit. Since one input pixel data has RGB information, it corresponds to three sub-pixels. Therefore, in the example of FIG. 52 using input image data composed of 6 rows of pixel data in one row, the data storage area of 6 line memories is 6 × 3 × 6 = 108 in units of subpixels. It becomes. Further, in the example of FIG. 52, the correspondence between the three rows of the input image data M1 shown in FIG. 57 and the display panel is shown in FIG. As shown in FIG. 60, 3 rows × 6 columns of M1 correspond to 9 rows and even-numbered subpixels of the display panel, and 3 rows × 6 columns of M2 not shown correspond to odd-numbered subpixels. To do. Therefore, the data storage area of the previous six line memories can be expressed as the number of sub-pixels (9 × 12 = 108) for 9 rows × 12 columns of the display unit. Furthermore, a necessary line memory area in a display panel having a display portion in which subpixels are arranged in m rows and n columns can be expressed as 9 rows × n columns of subpixels.

  The operation of the fifth embodiment has been described above by taking the display panel of the array pattern 1 of FIG. 8 provided with the image separation means shown in FIG. 7 as an example, but the present embodiment is not limited to this. According to the timing illustrated in FIG. 52, as in the first embodiment, application to various arrangement patterns is possible by parameter setting.

  52, a so-called side-by-side format in which a plurality of viewpoint image data is transferred for each row is used as the transfer format of the input image data. However, a plurality of viewpoint image data is transferred for each pixel. A dot-by-dot format may be used. As shown in FIG. 53, in the dot-by-dot format, the pixel data of the input image data M1 and M2 shown in FIG. 57 are M1 (1,1) RGB, M2 (1,1) RGB, and M1 (1,2). RGB, M2 (1,2) RGB,... Are alternately transferred in units of pixel data. Here, the data transfer in units of lines in the dot-by-dot format is expressed as M1 (line number) M2 (line number) as in M1 (1) M2 (2) shown in FIG. Is shown in FIG. FIG. 54 is an example of outputting the input image data shown in FIG. 57 to the display unit composed of the array pattern 1 of FIG. 8 in which the image separation means shown in FIG. As shown in FIG. 54, even when the dot-by-dot format is used, the timing of storing the M2 in the line memory is different from that in FIG. 52, but the other operations are the same as when the side-by-side format is used (FIG. 52). , L1 to L6 line memories can be used to generate composite image data. It should be noted that even if the transfer format of the input image is a so-called line-by-line format in which a plurality of viewpoint image data are transferred for each column, the same applies as can be seen from the operation description of FIGS. 53 and 54. Is possible.

  Furthermore, the present embodiment can also be applied to a panel with N viewpoints as shown in the second embodiment. In the N-view panel, 3 × N line memories for one row of each viewpoint image are prepared, and a period obtained by adding N data input periods for one row of each viewpoint image is the driving period of the three scanning lines of the display panel. Apply under matching conditions. However, N needs to be an even number.

[effect]
In the fifth embodiment, a line memory that stores data of sub-pixels corresponding to nine rows of the display unit is used as the image memory instead of the frame memory. That is, in a display panel having a display unit in which sub-pixels are arranged in m rows and n columns, the image memory provided may be a storage area of at least 9 rows × n columns of the sub-pixels. Therefore, the circuit scale can be greatly reduced and the cost can be reduced as compared with a display controller having a frame memory. Further, the size can be reduced, and for example, there is an effect that the number of options for the location where the display controller is mounted increases, for example, the display controller is built in the data line driving circuit.

(Sixth embodiment)
A configuration of the display device according to the sixth embodiment of the present invention will be described. The display device according to the sixth embodiment has a configuration in which the area of the line memory provided as the image memory in the display controller is further reduced in the fifth embodiment.

  FIG. 55 shows a functional block diagram of the sixth embodiment. As in the fifth embodiment, the display controller 106 generates composite image data CM from each viewpoint image data input from the outside, and the display panel 20 that is a display unit of the composite image data CM. Since the configuration of the display panel 20 is the same as that of the first embodiment, the same reference numerals are used and description thereof is omitted. The configuration of the display controller 106 includes a line memory 126 smaller than that of the fifth embodiment as an image memory, a writing control unit 116 having a function of writing input image data into the line memory 126, and a reading control having a function of reading data from the line memory 126. And a timing control unit 156 that generates each control signal using the input synchronization signal. Since the other configuration of the display controller 106 is the same as that of the fifth embodiment, the same reference numerals are used and description thereof is omitted.

  In the sixth embodiment, as in the fifth embodiment, a line memory is used as the image memory, and a so-called side-by-side format in which a plurality of viewpoint image data is transferred for each row is used as the input image data transfer format. .

  The display part of 6th Embodiment is the same structure as 1st Embodiment similarly to 5th Embodiment. For example, it consists of the arrangement pattern 1 of FIG. 8 in which the image separation means shown in FIG. 7 is arranged. Therefore, as described in the first embodiment, the relationship between the row of the input image and the scanning line has a periodicity of 6 scanning lines, and has the regularity shown in FIG. Thus, in the side-by-side input image data transfer, the line memory provided as the image memory only needs to have at least an area for storing data to be given to the sub-pixels for six scanning lines.

  Specifically, using the example of FIG. 8, since six upper and lower subpixel pairs are connected to one scanning line when calculated, the required data storage area is set to the subpixels constituting the display unit 50. In terms of the number, 6 × 6 × 2 = 72.

  One example of the operation of the sixth embodiment using the line memory having the data storage area will be described with reference to the timing chart shown in FIG.

  56, as in the fifth embodiment, the input image data shown in FIG. 57 is output to the display unit including the array pattern 1 shown in FIG. 8 in which the image separation means shown in FIG. 7 is arranged (generated composite image data is generated). Show the timing. T indicates one horizontal period of the display panel, and input data M1 and M2 are pixel data of 4 rows × 6 columns shown in FIG. L1 to L4 are line memories capable of storing one row of input viewpoint pixel data. Here, since the input pixel data has RGB information, it corresponds to three sub-pixels. Therefore, the data storage area of the four line memories for storing one line of input image data is 4 × 3 × 6 = 72 for each sub-pixel, which matches the above-described storage area.

  The operation of the sixth embodiment is different from the fifth embodiment in that each line memory is not associated with each viewpoint image, and the input image is stored in the line memory that has been read out regardless of the viewpoint. As a result, the designation of the line memory to be read out differs. The operation of the sixth embodiment will be described below with reference to FIG.

  The operation in the period from T1 to T6 shown in FIG. 56 is the same as that in the fifth embodiment. When the reading process of T6 is completed, the data of M1 (1) stored in L1 becomes unnecessary. Therefore, in the next T7, the data of M1 (3) is stored in L1. At T7, M1 (3) data is stored in L1, and at the same time, M2 (1) B to be applied to the scanning line G4 is read from L2, M2 (2) R is read from L4, processed, and output to the display panel. At T8, M1 (2) R and G are read from L3 as data to be applied to the scanning line G5, processed, and output to the display panel. Further, since reading of M2 (1) stored in L2 at T7 is completed and the data of M2 (1) of L2 is no longer needed, L2 of input image data M2 (3) is started from the middle of T8. Start storing to. At T9, as in the fifth embodiment, M2 (2) G and B to be applied to the scanning line G6 are read from L4, processed, and output to the display panel. When the reading process of T9 is completed, the data of M2 (2) stored in L4 becomes unnecessary. Therefore, in the next T10, the data of M1 (4) is stored in L4. At T10, M1 (2) B to be applied to the scanning line G7 is read from L3 and M1 (3) R is read from L1, processed, and output to the display panel. At T11, M2 (3) R and G are read from L2 as data to be applied to the scanning line G8, processed, and output to the display panel. Further, since the reading of M1 (2) stored in L3 at T10 is completed and the data of M1 (2) in L3 is unnecessary, L3 of input image data M2 (4) is started from the middle of T11. Start storing to. As described above, as shown in FIG. 56, the same processing is repeated for each scanning line, and output to the display panel is repeated. Since the input data in this example is M1 and M2 composed of pixel data of 4 rows × 6 columns shown in FIG. 57, there is no input data after T13 in FIG. 56, but there are more rows than in this example. As an example of the operation in this case, data storing and reading operations are indicated by broken lines.

  As described above, in the sixth embodiment, the input data is stored in the line memory that has been read regardless of the viewpoint. As a specific example, the data stored in L3 and L4 are alternately M1 and M2. As a result, the line memory designation at the time of storing the input data and the line memory designation of the read data are slightly complicated as compared with the fifth embodiment, but operates with a smaller number of line memories.

  The operation has been described above by taking the display panel of the arrangement pattern 1 of FIG. 8 having the image separation means shown in FIG. 7 as an example. However, the present embodiment is not limited to this, and according to the timing of FIG. As explained, it can be applied to various arrangement patterns by parameter setting. Note that, in a display panel having a display unit in which sub-pixels are arranged in m rows and n columns, a necessary area of the line memory is 6 rows × n columns of sub-pixels. Similarly to the fifth embodiment, for the N-viewpoint panel as shown in the second embodiment, 2 × N line memories for one row of each viewpoint image are prepared, and one row of each row is prepared. The present invention can be applied under the condition that the data input period for N viewpoints matches the driving period of the three scanning lines of the display panel. However, N needs to be an even number.

[effect]
In the sixth embodiment, a line memory having an area for storing sub-pixel data for six scanning lines is used as an image memory instead of a frame memory. That is, in a display panel having a display unit in which sub-pixels are arranged in m rows and n columns, the image memory provided is a storage area for at least 6 rows × n columns of the sub-pixels. For this reason, in addition to the effects of the fifth embodiment, the circuit scale of the line memory can be further reduced, and the cost can be reduced and the size can be reduced.

(Seventh embodiment)
A configuration of the display device according to the seventh embodiment of the present invention will be described. The display device according to the seventh embodiment is the same as the fifth and sixth embodiments in that the image memory is not a frame memory but a plurality of line memories, but the input image data transfer method and the display panel The driving method is different. In the seventh embodiment, a necessary line memory area can be further reduced as compared with the sixth embodiment.

  FIG. 58 shows a functional block diagram of the seventh embodiment. As in the first embodiment, the display controller 107 that generates composite image data CM from each viewpoint image data input from the outside, and the display panel 21 that is a display unit of the composite image data CM are configured. In the display panel 21, the display unit 50 and the data line driving circuit 80 are the same as those in the first embodiment, but the scanning line driving circuit is different. The scanning line driving circuit constituting the seventh embodiment includes a scanning circuit capable of scanning for each even-numbered column and each odd-numbered column of the display unit 50 composed of sub-pixels of m rows × n columns. 58, as an example of the scanning line driving circuit in the seventh embodiment, a scanning line driving circuit A (60A) for sequentially driving odd-numbered scanning lines G1, G3, G5... And an even-numbered scanning line G2. , G4, G6,... Sequentially shows a scanning line driving circuit B (60B). The configuration of the display controller 107 includes a line memory 127, and includes a control unit 117 having a function of writing input image data into the line memory 127 and a read control unit 137 having a function of reading data from the line memory 127. Further, a vertical control signal 62 and a horizontal drive signal 82 for driving the display panel 21 are generated in synchronization with the input synchronization signal, and these control signals are read out, and the control means 137, the scanning line drive circuits 60A and 60B, and the data line drive circuit 80 are read. And a timing storage unit 157 having a function of outputting data to and a parameter storage unit 140 having a function of storing parameters necessary for data rearrangement according to the arrangement of the display unit 50 as in the first embodiment.

  In the seventh embodiment, a frame memory is not used as an image memory, as in the fifth embodiment, and there are restrictions on the transfer format and timing of input image data. As an example of the operation of the seventh embodiment, FIG. 59 shows a timing chart for driving the display panel of the array pattern 1 shown in FIG. 8 provided with the image separation means shown in FIG.

  59 shown in FIG. 59 indicates one horizontal period of the display panel, and the input data M1 and M2 are pixel data of 4 rows × 6 columns shown in FIG. The input data M1 (1) and M2 (1) shown in FIG. 59 indicate the first row of the first viewpoint image data M1 and the second row of the second viewpoint image data M2 shown in FIG. As shown in FIG. 59, the transfer format of the input image data of the seventh embodiment is a so-called frame sequential type in which the input image data for one viewpoint is transferred and then the other input image data is transferred. . In the seventh embodiment, since no frame memory is provided, output to the display panel is performed for each sub-pixel corresponding to the viewpoint of the input image data. As described in the first embodiment, the viewpoint images to which the sub-pixels of the display unit correspond are determined by the installation of the image separation unit as in the examples shown in FIGS. 7 and 24, and in the examples shown in FIGS. Thus, the sub-pixel corresponding to each viewpoint can be selected depending on the even and odd of the scanning lines to be connected. Therefore, in the seventh embodiment, the scan lines are divided evenly and oddly, and each is sequentially scanned. 59 indicates the data output to the sub-pixels connected to the odd-numbered scanning lines of the display unit shown in FIG. 8, and the outputs G2, G4,. The data output to the sub-pixel connected to the even-numbered scanning line of the display unit shown in FIG. Furthermore, in order to minimize the storage area of the line memory used instead of the frame memory, the input period for two rows of input image data for each viewpoint is matched with the three horizontal periods of display panel output.

  L1 to L3 shown in FIG. 59 are line memories used as image memories in the seventh embodiment, and are line memories capable of storing one row of input viewpoint pixel data. Here, since the input pixel data has RGB information, one row of input viewpoint pixel data corresponds to 3 rows × n / 2 columns of sub-pixels constituting the display unit. FIG. 60 shows a correspondence relationship between the input data M1 (1), the input data M1 (2), the input data M1 (3), and the sub-pixels of the display unit in FIG. As can be seen from FIG. 60, the storage areas required by L1 to L3 shown in FIG. 59 are 3 × 3 × 6 = 54 sub-pixel units.

  Details of the operation of the seventh embodiment will be described with reference to FIG. Input data M1 (1) is stored in L1 and M1 (2) is stored in L2 during the period from T1 to T3. Further, in the period T3, in parallel with the storing operation of M1 (2) in L2, the data of the scanning line G1 is read from L1 in which M1 (1) is stored, and the display panel information described in the first embodiment. By the rearrangement process based on regularity, the same data as the composite image data generation described in the first embodiment is output. Specifically, R data is read from M1 (1) to G1, rearranged, and output to the display panel. Next, at T4, storage of M1 (3) in L3 is started, and data M1 (1) G and B to be applied to the scanning line G3 are read from L1, rearranged, and output to the display panel. At T5, M1 (2) R and G to be applied to the scanning line G5 are read from L2, rearranged, and output to the display panel. When T4 ends, all of M1 (1) stored in L1 is read out and becomes unnecessary. Therefore, storage of M1 (4) in L1 is started in the middle of T5. In T6, in parallel with the storing operation of M1 (4) in L1, M1 (2) B to be applied to the scanning line G7 is read from L2, M1 (3) R is read from L3, and rearrangement processing is performed on the display panel. Output. At T7, M1 (3) G and B to be given to the scanning line G9 are read from L3, rearranged, and output to the display panel. Since the data input of M1 is completed at T6, the period of T7 in the input data is a blanking period. At T8, M1 (4) R and G to be applied to the scanning line G11 are read from L1, rearranged, and output to the display panel. Further, the storage of the input data M2 (1) in L2 is started from the middle of T8. At T9, in parallel with the storing operation of M2 (1) in L2, M1 (4) B to be applied to the scanning line G13 is read from L1, rearranged, and output to the display panel. At T10, storage of M2 (2) in L3 is started. Since data output to the odd number of scanning lines is completed at T9, the period of T10 in the output is a blanking period. At T11, M2 (1) R and G to be applied to the scanning line G2 are read from L2, rearranged, and output to the display panel. Further, the storage of M2 (3) into L1 is started from the middle of T11. In T12, M2 (1) B to be applied to the scanning line G4 is read from L2 and M2 (2) R is read from L3 in parallel with the storing operation of M2 (3) in L1, and rearrangement processing is performed on the display panel. Output. When the reading process of T12 is completed, the data of M2 (1) stored in L2 becomes unnecessary. Therefore, at the next T13, M2 (4) is stored in L2. In T13, in parallel with the storing operation of M2 (4) in L2, M2 (2) G and B to be applied to the scanning line G6 are read from L3, rearranged, and output to the display panel. At T14, in parallel with the storing operation of M2 (4), M2 (3) R and G to be applied to the scanning line G8 are read from L1, rearranged, and output to the display panel. Note that the operation of storing M2 (4) in L2 ends in the middle of T14, and the subsequent period in the input data is a blanking period. At T15, M2 (3) B to be applied to the scanning line G10 is read from L1, M2 (4) R is read from L2, rearranged, and output to the display panel. At T16, M2 (4) G and B to be given to the scanning line G12 are read from L2, rearranged, and output to the display panel.

  The operation of the seventh embodiment has been described above by taking the display panel of the arrangement pattern 1 of FIG. 8 provided with the image separation means shown in FIG. 7 as an example. However, the present embodiment is not limited to this, and the first embodiment Application to various arrangement patterns is possible by the regularity of the sub-pixel arrangement described and the parameter setting. 58, the scanning line driving circuit used in the seventh embodiment is represented as a scanning line driving circuit A that scans odd scanning lines and a scanning line driving circuit B that scans even scanning lines. The drive shown in FIG. 59 may be realized by sequentially connecting the output of the line drive circuit to odd scan lines and then to even scan lines. Further, it may be realized by using one scanning line driving IC capable of scanning odd and even outputs.

[effect]
In the seventh embodiment, an image memory provided in a display panel having a display unit in which subpixels are arranged in m rows and n columns is at least a storage area of 9 rows × (n / 2) columns of the subpixels. I can finish it. Therefore, the circuit scale can be greatly reduced and the cost can be reduced as compared with a display controller having a frame memory as an image memory. Further, the size can be reduced, and for example, there is an effect that the number of options for the location where the display controller is mounted increases, for example, the display controller is built in the data line driving circuit.

(Eighth embodiment)
A configuration of the display device according to the eighth embodiment of the present invention will be described. The display device according to the eighth embodiment is similar to the seventh embodiment in that the image memory is not a frame memory but a plurality of line memories, and the transfer format of input image data is a so-called frame sequential type. The panel drive method is different. The eighth embodiment includes a scanning circuit that can scan all the scanning lines of the display panel twice in the transfer period of the two left and right viewpoint images that are input, and divides the scanning lines evenly and oddly as in the seventh embodiment. There is no need to use a scanning line driving circuit for scanning.

  FIG. 61 shows a functional block diagram of the eighth embodiment. As in the sixth embodiment, the display controller 108 generates composite image data CM from viewpoint image data input from the outside, and the display panel 22 that is a display unit for the composite image data CM. In the display panel 22, the display unit 50 and the data line driving circuit 80 are the same as those in the seventh embodiment, but the scanning line driving circuit is different. The scanning line driving circuit 67 constituting the eighth embodiment has a function of scanning the scanning lines of all the display panels twice within the transfer period of the left and right viewpoint images input in the frame sequential format. The configuration of the display controller 108 includes a line memory 127 and write control means 117 having a function of writing input image data to the line memory 127 as in the seventh embodiment. Compared with the seventh embodiment under the condition that the transfer speed of input data is the same, the function of reading out data from the line memory 127 at a double speed and rearranging the data, and the function of giving data that makes the display image of the viewpoint with no input data black Read control means 138 having the above. Further, a vertical control signal 63 and a horizontal drive signal 83 for driving the display panel 22 are generated in synchronization with the input synchronization signal, and these control signals are output to the read control means 138, the scanning line drive circuit 67 and the data line drive circuit 80. And a parameter storage unit 140 having a function of storing parameters necessary for data rearrangement according to the arrangement of the display unit 50 as in the first embodiment.

  In the eighth embodiment, as in the fifth to seventh embodiments, a frame memory is not used as an image memory. Therefore, there are restrictions on the transfer format and timing of input image data. As an example of the operation of the seventh embodiment, FIG. 62 shows a timing chart for driving the display panel of the array pattern 1 shown in FIG. 8 provided with the image separation means shown in FIG.

  62, as in the fifth to seventh embodiments, indicates one horizontal period of the display panel, and the input data M1 and M2 are pixel data of 4 rows × 6 columns shown in FIG. Also, the input data M1 (1) and M2 (1) shown in FIG. 62 indicate the first row of the first viewpoint image data M1 and the second row of the second viewpoint image data M2. As in the seventh embodiment, the transfer format of the input image data in the seventh embodiment is such that, as shown in FIG. 62, after the input image data for one viewpoint is transferred, the other input image data is transferred. This is a so-called frame sequential type. Outputs G1, G2, G3,... G12, G13 shown in FIG. 62 indicate data outputs to the sub-pixels connected to the scanning lines of the display unit shown in FIG. In the seventh embodiment, as shown in FIG. 62, all the scanning lines of the display unit are scanned corresponding to the transfer period of the input data M1, and all the scanning lines of the display unit are scanned corresponding to the transfer period of the input data M2. Scan. That is, the scanning lines of all the display panels are scanned twice within the transfer period of the two left and right viewpoint images. In the eighth embodiment, as the data output in response to scanning, the pixels that display the viewpoint image corresponding to the input data are given the data that has been read from the line memory and subjected to the rearrangement process, as in the seventh embodiment. The pixel that displays the viewpoint image that does not correspond to the input data is given data for displaying black. In the example of FIG. 62, the first viewpoint image data M1 is input during a period from T1 to T12 and stored in the line memory. 62 is an example of driving the display panel shown in FIGS. 7 and 8, and therefore, odd-numbered scanning lines (G1, G3,... G13) are connected to pixels that display M1. Therefore, the output to the display panel from T5 to T17 is read from the line memory and rearranged in the same manner as in the fifth embodiment for the output corresponding to the odd-numbered scanning lines (G1, G3,... G13). The performed data is given, and black display data is given to the output corresponding to the even-numbered scanning lines (G2, G4,... G12). In the example of FIG. 62, the second viewpoint image data M2 is input during a period from T16 to T17 and stored in the line memory. As described above, in this example, even-numbered scanning lines (G2, G4,... G12) are connected to the pixels displaying M2. Therefore, the output to the display panel of T21 to T33 is given to the data corresponding to the black display to the output corresponding to the odd-numbered scanning lines (G1, G3,... G13), and the even-numbered scanning lines (G2). , G4,... G12) are provided with data read from the line memory and subjected to rearrangement processing, as in the fifth embodiment.

As shown in FIG. 62, in the eighth embodiment, in order to minimize the storage area of the line memory used in place of the frame memory, the input period for one line of input image data for each viewpoint and the display panel output 3 Match the horizontal period. As in the seventh embodiment, the line memories L1 to L3 store each input viewpoint pixel data for one row. Further, the storage areas required by L1 to L3 are 3 × 3 × 6 = 54 in sub-pixel units as in the seventh embodiment.
[effect]
In the eighth embodiment, as in the seventh embodiment, an image memory provided in a display panel having a display unit in which sub-pixels are arranged in m rows and n columns is provided with at least 9 rows × (n / 2) Since the storage area for the columns can be used, the same effect as in the sixth embodiment can be obtained. Furthermore, as compared with the seventh embodiment, since the scanning lines need not be scanned evenly and oddly, the configuration of the display panel is simple and the design is easy to design.

  While the present invention has been described with reference to the above embodiments, the present invention is not limited to the above embodiments. Various changes that can be understood by those skilled in the art can be made to the configuration and details of the present invention. Further, the present invention includes a combination of some or all of the configurations of the above-described embodiments as appropriate.

  The present invention can also be configured as follows.

  In the present invention, the sub-pixels connected to the data line through the switching means controlled by the scanning line are arranged in m columns in the vertical direction and n columns in the horizontal direction, and the m + 1 scanning lines and the n + 1 data lines are used. A display controller for outputting composite image data to a display module comprising a driven display unit and image separation means for directing light emitted from a plurality of sub-pixels of the display unit to at least two spaces in units of sub-pixels. The display controller includes: an image memory for storing at least two viewpoint image data; a writing control unit for writing at least two viewpoint image data input from the outside to the image memory; and the image separation of the display module. Parameter storage means for storing parameters indicating the positional relationship between the means and the display unit, the array of sub-pixels and the number of colors Read control means for reading the viewpoint image data from the image memory and outputting it as the composite image data to the display module in accordance with a read order determined by applying the parameters to a predetermined repetition rule determined by arrangement. It is a display controller characterized by comprising.

  Further, according to the present invention, the sub-pixels connected to the data line through the switching means controlled by the scanning line are arranged in m columns in the vertical direction and n columns in the horizontal direction, and m + 1 scanning lines and n + 1 data. Generating composite image data to be output to a display module having a display unit driven by lines and an image separation means for directing light emitted from a plurality of subpixels of the display unit to at least two spaces in units of subpixels An image processing method comprising: a parameter reading step of reading a parameter indicating a positional relationship between the image separation means and the display unit of the display module; and at least two viewpoint images input from the outside A writing step of writing data into the image memory, and a predetermined repetition rule determined by the arrangement of the sub-pixels, the number of colors, and the color arrangement And a reading step of reading the viewpoint image data from the image memory and outputting it as the composite image data to the display module in accordance with a reading order obtained by applying the parameters. .

  According to the present invention, in a display device provided with optical means for image distribution such as a lenticular lens and a parallax barrier, wiring and TFTs are efficiently arranged for each pixel having a substantially trapezoidal opening. It is possible to achieve high aperture ratio and high image quality. In the realization of high image quality, the connection of scanning lines and data lines to the sub-pixel matrix has a connection pattern different from that of a general panel, but by finding regularity, it is arranged in an arbitrary number of rows and columns. Scan lines and data lines connected to sub-pixels can be obtained without actually designing. Furthermore, it is possible to generate composite image data from the found regularity, installation of image separation means, color filter color order, and arrangement pattern of upper and lower sub-pixel pairs as a minimum unit, and a video for generating the composite image data By providing the signal processing means, a means for synthesizing the synthesized image data and a method for synthesizing the synthesized image are provided. Thus, input image data having the same transfer format as that of a general flat display device can be used, and a burden such as rearrangement of output image data is not applied to the device to which the display device is applied. Furthermore, by providing means for parameterizing the conditions for generating the composite image data and storing the parameters, it is not necessary to change the video signal processing means for changing the display module, and the design is not required. Man-hours can be reduced and costs can be reduced.

  The present invention can be applied to a mobile phone, a portable game machine, a portable terminal, and other display devices in general (such as a notebook computer).

11; vertical direction 12; horizontal direction 15; backlight 16; light beam 17; observation surface 20, 21, 22, 23; display panel 25; glass substrate 26; liquid crystal layer 27; Separation means)
30a; Cylindrical lenses 40, 40a, 40b; subpixel 41; first viewpoint subpixel 42; second viewpoint subpixel 44; silicon layer 45; pixel electrode 46; TFT (switching means)
47; storage capacitor 48, 49; contact hole 50; display 51; parameter information 60, 60A, 60B, 67; scanning line drive circuit 61; vertical control signal 70; wiring 75; opening 76; Data line driving circuit 81; horizontal control signal 90; data bus 95; address buses 100, 102, 103, 104, 105, 106, 107, 108; display controllers 110, 115, 116, 117; write control means 120; 125, 126, 127; line memories 130, 133, 135, 136, 137, 138; read control means 140; parameter storage means 150, 155, 156, 157, 158; timing control means 160; input data rearranging means 164; Input data vertical / horizontal conversion means 170; data line selection switch 80; electro-optical element (second image separating means)
180a; slit 190; image separation control means 200 and 201; display modules P2R and P2L; upper and lower subpixel pairs G1, Gy, Gm, and Gm + 1; scanning lines D1, Dx, Dn, and Dn + 1; data lines

Claims (13)

The sub-pixels connected to the data line through the switching means controlled by the scanning line are arranged in m rows and n columns when m and n are natural numbers, and m + 1 scanning lines and at least n scanning lines are arranged. A display unit driven by data lines;
First image separation means for directing light emitted from the sub-pixels to a plurality of viewpoints in units of the sub-pixels;
To the display module with
A display controller that outputs composite image data,
An image memory for storing viewpoint image data for a plurality of viewpoints;
Write control means for writing the viewpoint image data input from the outside into the image memory;
Parameter storage means for storing a parameter indicating a positional relationship between the first image separation means and the display unit;
In accordance with a reading order determined by applying the parameters to a repetition rule determined by the arrangement, number of colors and color arrangement of the sub-pixels, the viewpoint image data is read from the image memory and the display module is used as the composite image data. Read control means for outputting to
With
The display unit is configured with an upper and lower sub-pixel pair composed of two sub-pixels arranged with one scanning line interposed therebetween as a basic unit,
The switching means included in each of the two sub-pixels is commonly controlled by the scanning line sandwiched between the two sub-pixels and connected to different data lines,
The upper and lower subpixel pairs adjacent to each other in the extending direction of the scanning lines are arranged such that the switching unit is controlled by the different scanning lines, respectively.
The number of colors of the sub-pixels is three colors of a first color, a second color, and a third color;
When y is a natural number, one of the two sub-pixels of the upper and lower sub-pixel pairs connected to the y-th scanning line is the first color and the other color is the second color, Forming one of the even and odd columns of the display;
Two sub-pixels of the upper and lower sub-pixel pairs connected to the y + 1th scanning line are one of the second color and the other is the third color, and the other of the even and odd columns of the display unit Forming,
One of the two sub-pixels of the upper and lower sub-pixel pairs connected to the y + second scanning line is the third color and the other is the first color, and one of the even and odd columns of the display unit is Forming,
One of the two sub-pixels of the upper and lower sub-pixel pairs connected to the y + 3th scanning line is the first color and the other is the second color, and the other of the even-numbered column and the odd-numbered column of the display unit Forming,
One of the two subpixels of the upper and lower subpixel pairs connected to the y + 4th scanning line is the second color and the other is the third color, and one of the even and odd columns of the display unit is Forming,
One of the two sub-pixels of the upper and lower sub-pixel pairs connected to the y + 5th scanning line is the third color and the other is the first color, and the other of the even and odd columns of the display unit Forming,
The read control means includes
Corresponding to the y-th scanning line, the color to be read is the first color and the second color, and the viewpoint image to be read is a viewpoint image corresponding to one of the even and odd columns of the display unit,
Corresponding to the y + 1th scanning line, the color to be read is the second color and the third color, and the viewpoint image to be read is a viewpoint image corresponding to the other of the even number column and the odd number column of the display unit,
Corresponding to the y + second scanning line, the color to be read is the third color and the first color, and the viewpoint image to be read is a viewpoint image corresponding to one of the even and odd columns of the display unit,
Corresponding to the y + th scanning line, the color to be read is the first color and the second color, and the viewpoint image to be read is a viewpoint image corresponding to the other of the even number column and the odd number column of the display unit,
Corresponding to the y + 4th scanning line, the color to be read is the second color and the third color, and the viewpoint image to be read is a viewpoint image corresponding to one of the even and odd columns of the display unit,
Corresponding to the (y + 5) th scanning line, the readout color is the third color and the first color, and the readout viewpoint image is the viewpoint image corresponding to the other of the even and odd columns of the display unit. According to
Reading the viewpoint image data from the image memory;
A display controller characterized by that. The image memory has a storage area for at least 6 rows × n columns of the sub-pixels.
The display controller according to claim 1 . The image memory has a storage area of at least 9 rows × (n / 2) columns of the sub-pixels.
The display controller according to claim 1 , wherein the display controller is a display controller. Input data vertical / horizontal conversion means for rearranging the viewpoint image data input from the outside as an image rotated 90 degrees left or right;
The display module includes a second image separation unit including an electro-optic element that directs light emitted from the sub-pixel to a plurality of viewpoints in units of the sub-pixel.
The direction connecting the plurality of viewpoints where the second image separating unit directs the light is orthogonal to the direction connecting the plurality of viewpoints where the first image separating unit directs the light,
The writing control unit has a function of writing the viewpoint image data rearranged by the input data vertical / horizontal conversion unit to the image memory instead of the viewpoint image data input from the outside.
The display controller according to any one of claims 1 to 3, characterized in that. Input data rearranging means for rearranging the viewpoint image data of four or more viewpoints input from the outside into the viewpoint image data of two viewpoints;
The writing control means has a function of writing the viewpoint image data rearranged by the input data rearranging means to the image memory instead of the viewpoint image input from the outside.
The display controller according to any one of claims 1 to 4, characterized in that. The scanning line of the sub-pixel forming the even-numbered column of the display unit and the scanning line of the sub-pixel forming the odd-numbered column of the display unit are provided with a function of sequentially and separately scanning,
The display controller according to any one of claims 1 to 5, characterized in that. With the function of displaying either one of the even number columns and odd number columns of the display unit as black,
The display controller according to any one of claims 1 to 6, characterized in that. The transfer format of the viewpoint image data is a frame sequential format.
The display controller according to any one of claims 1 to 7, characterized in that. The display controller according to any one of claims 1 to 8 , the display module,
A display device comprising: The sub-pixels connected to the data line via the switching means controlled by the scanning line are arranged in m rows and n columns where m and n are natural numbers, and m + 1 scanning lines and at least n data. A display driven by lines;
First image separation means for directing light emitted from the sub-pixels to a plurality of viewpoints in units of the sub-pixels;
An image processing method for generating composite image data to be output to a display module comprising:
Parameter storage of parameters indicating the positional relationship between the first image separation means and the display unit
Read from means,
Perspective image data is input from outside for multiple viewpoints and written to the image memory.
In accordance with a reading order determined by applying the parameters to a repetition rule determined by the arrangement, number of colors and color arrangement of the sub-pixels, the viewpoint image data is read from the image memory and the display module is used as the composite image data. Output to
And characterized by
The display unit is configured with an upper and lower sub-pixel pair composed of two sub-pixels arranged with one scanning line interposed therebetween as a basic unit,
The switching means included in each of the two sub-pixels is commonly controlled by the scanning line sandwiched between the two sub-pixels and connected to different data lines,
The upper and lower subpixel pairs adjacent to each other in the extending direction of the scanning lines are arranged such that the switching unit is controlled by the different scanning lines, respectively.
The number of colors of the sub-pixels is three colors of a first color, a second color, and a third color;
When y is a natural number, one of the two sub-pixels of the upper and lower sub-pixel pairs connected to the y-th scanning line is the first color and the other color is the second color, Forming one of the even and odd columns of the display;
Two sub-pixels of the upper and lower sub-pixel pairs connected to the y + 1th scanning line are one of the second color and the other is the third color, and the other of the even and odd columns of the display unit Forming,
One of the two sub-pixels of the upper and lower sub-pixel pairs connected to the y + second scanning line is the third color and the other is the first color, and one of the even and odd columns of the display unit is Forming,
One of the two sub-pixels of the upper and lower sub-pixel pairs connected to the y + 3th scanning line is the first color and the other is the second color, and the other of the even-numbered column and the odd-numbered column of the display unit Forming,
One of the two subpixels of the upper and lower subpixel pairs connected to the y + 4th scanning line is the second color and the other is the third color, and one of the even and odd columns of the display unit is Forming,
One of the two sub-pixels of the upper and lower sub-pixel pairs connected to the y + 5th scanning line is the third color and the other is the first color, and the other of the even and odd columns of the display unit When forming
The viewpoint image data is read from the image memory according to the read order obtained by applying the parameters to a predetermined repetition rule determined by the arrangement, number of colors, and color arrangement of the sub-pixels, and the composite image data is used as the composite image data. When outputting to the display module,
Corresponding to the y-th scanning line, the color to be read is the first color and the second color, and the viewpoint image to be read is a viewpoint image corresponding to one of the even and odd columns of the display unit,
Corresponding to the y + 1th scanning line, the color to be read is the second color and the third color, and the viewpoint image to be read is a viewpoint image corresponding to the other of the even number column and the odd number column of the display unit,
Corresponding to the y + second scanning line, the color to be read is the third color and the first color, and the viewpoint image to be read is a viewpoint image corresponding to one of the even and odd columns of the display unit,
Corresponding to the y + th scanning line, the color to be read is the first color and the second color, and the viewpoint image to be read is a viewpoint image corresponding to the other of the even number column and the odd number column of the display unit,
Corresponding to the y + 4th scanning line, the color to be read is the second color and the third color, and the viewpoint image to be read is a viewpoint image corresponding to one of the even and odd columns of the display unit,
Corresponding to the (y + 5) th scanning line, the readout color is the third color and the first color, and the readout viewpoint image is the viewpoint image corresponding to the other of the even and odd columns of the display unit. According to
Reading the viewpoint image data from the image memory;
An image processing method. The scanning lines of the sub pixels forming the even columns of the display section and the scanning lines of the sub pixels forming the odd columns of the display section are separately and sequentially scanned.
The image processing method according to claim 10 . According to the viewpoint of the viewpoint image data, generate data in which one of the even-numbered columns and the odd-numbered columns of the display unit is displayed in black.
The image processing method according to claim 10 . The sub-pixels connected to the data line via the switching means controlled by the scanning line are arranged in m rows and n columns where m and n are natural numbers, and m + 1 scanning lines and at least n data. A display driven by lines;
First image separation means for directing light emitted from the sub-pixels to a plurality of viewpoints in units of the sub-pixels;
An image processing program for generating composite image data to be output to a display module comprising:
A procedure for reading a parameter indicating a positional relationship between the first image separation unit and the display unit from a parameter storage unit;
A procedure for inputting viewpoint image data from a plurality of viewpoints and writing it to the image memory,
In accordance with a reading order determined by applying the parameters to a repetition rule determined by the arrangement, number of colors and color arrangement of the sub-pixels, the viewpoint image data is read from the image memory and the display module is used as the composite image data. To output to
An image processing program for causing a computer to execute
The display unit is configured with an upper and lower sub-pixel pair composed of two sub-pixels arranged with one scanning line interposed therebetween as a basic unit,
The switching means included in each of the two sub-pixels is commonly controlled by the scanning line sandwiched between the two sub-pixels and connected to different data lines,
The upper and lower subpixel pairs adjacent to each other in the extending direction of the scanning lines are arranged such that the switching unit is controlled by the different scanning lines, respectively.
The number of colors of the sub-pixels is three colors of a first color, a second color, and a third color;
When y is a natural number, one of the two sub-pixels of the upper and lower sub-pixel pairs connected to the y-th scanning line is the first color and the other color is the second color, Forming one of the even and odd columns of the display;
Two sub-pixels of the upper and lower sub-pixel pairs connected to the y + 1th scanning line are one of the second color and the other is the third color, and the other of the even and odd columns of the display unit Forming,
One of the two sub-pixels of the upper and lower sub-pixel pairs connected to the y + second scanning line is the third color and the other is the first color, and one of the even and odd columns of the display unit is Forming,
One of the two sub-pixels of the upper and lower sub-pixel pairs connected to the y + 3th scanning line is the first color and the other is the second color, and the other of the even-numbered column and the odd-numbered column of the display unit Forming,
One of the two subpixels of the upper and lower subpixel pairs connected to the y + 4th scanning line is the second color and the other is the third color, and one of the even and odd columns of the display unit is Forming,
One of the two sub-pixels of the upper and lower sub-pixel pairs connected to the y + 5th scanning line is the third color and the other is the first color, and the other of the even and odd columns of the display unit When forming
The viewpoint image data is read from the image memory according to the read order obtained by applying the parameters to a predetermined repetition rule determined by the arrangement, number of colors, and color arrangement of the sub-pixels, and the composite image data is used as the composite image data. In the procedure to output to the display module,
Corresponding to the y-th scanning line, the color to be read is the first color and the second color, and the viewpoint image to be read is a viewpoint image corresponding to one of the even and odd columns of the display unit,
Corresponding to the y + 1th scanning line, the color to be read is the second color and the third color, and the viewpoint image to be read is a viewpoint image corresponding to the other of the even number column and the odd number column of the display unit,
Corresponding to the y + second scanning line, the color to be read is the third color and the first color, and the viewpoint image to be read is a viewpoint image corresponding to one of the even and odd columns of the display unit,
Corresponding to the y + th scanning line, the color to be read is the first color and the second color, and the viewpoint image to be read is a viewpoint image corresponding to the other of the even number column and the odd number column of the display unit,
Corresponding to the y + 4th scanning line, the color to be read is the second color and the third color, and the viewpoint image to be read is a viewpoint image corresponding to one of the even and odd columns of the display unit,
Corresponding to the (y + 5) th scanning line, the readout color is the third color and the first color, and the readout viewpoint image is the viewpoint image corresponding to the other of the even and odd columns of the display unit. According to
Reading the viewpoint image data from the image memory;
An image processing program characterized by that.

Images