JP5157538B2 - Light emitting device - Google Patents

Description

  The present invention relates to a light emitting device using various light emission phenomena.

Conventionally, an electro-optical device such as a liquid crystal display device or an organic EL device (hereinafter referred to as “stereoscopic image display device”) that allows a viewer to recognize a stereoscopic image by displaying different images in two display ranges. Has been proposed). This causes the two display ranges to correspond to the right eye and left eye of the viewer, and causes parallax by displaying right eye images and left eye images having slightly different contents in both display ranges. Thus, the image display device can make the viewer feel a stereoscopic effect.
As such a three-dimensional image display apparatus, what is disclosed by patent document 1 and 2 is known, for example.
Japanese Patent Laid-Open No. 3-119889 JP-A-8-31376

The aforementioned Patent Document 1 discloses a stereoscopic image display device of “No glasses required by the parallax barrier method” (Patent Document 1, page 2, upper right column, third row). Patent Document 1 is particularly characterized by “electronic control of a parallax barrier stripe” (claim 1 of Patent Document 1). According to Patent Document 1, it is possible to realize display of a three-dimensional image (stereoscopic image) and display of a two-dimensional image in one image display device (Patent Document 1, page 3, lower right column, page 3). 7th line to 15th line).
Also, Patent Document 2 discloses a parallax barrier type stereoscopic image display device as in Patent Document 1, but in particular, “light source for image display” on the back surface of the glass on the front side of a flat fluorescent lamp. A characteristic is that an “ultraviolet reflective film is formed” and a “phosphor” is further formed thereon (the above “” is from [Claim 1] of Patent Document 2). According to Patent Document 2, it is assumed that the display image can be “bright and clear” ([0007] of Patent Document 2).

The above-mentioned Patent Documents 1 and 2 have a consciousness about realizing the display of a two-dimensional image and the display of a three-dimensional image in one apparatus. In addition, for Patent Document 2, refer to [0003] and the like). However, in any case, these documents bear in mind only the parallax barrier method and do not pay any attention to other stereoscopic image display methods. Furthermore, it actively asserts that there is no relationship between the other methods and the disclosed technology (invention) (especially with respect to Patent Document 1, the lower right column on page 2, line 12 and thereafter). reference).
However, stereoscopic image display methods include an integral photography method, a lenticular method that can be said to be a specialized mode, in addition to the parallax barrier method. Even in these three-dimensional image display methods, there is no doubt that it is preferable if it is possible to display a two-dimensional image together with a three-dimensional image.

Even if the parallax barrier method is taken into consideration, there is a problem in performing two-dimensional image display with an apparatus employing the method. This is because the parallax barrier in the case of not performing stereoscopic image display is merely in a state of being present to attenuate transmitted light, and reduces the brightness of the two-dimensional image. (Patent Document 2 proposes one measure for solving such a problem.)
Furthermore, as in Patent Documents 1 and 2, when an electronically controlled parallax barrier is employed, there is a problem of increasing costs.

  The present invention has been made in view of the above-described circumstances, and an object thereof is to provide a light-emitting device capable of solving all or part of the above-described problems.

In order to solve the above-described problems, a light-emitting device according to the present invention includes a plate-like body, a light-emitting element that is provided inside the plate-like body and emits light toward the wide surfaces of both, and the plate A parallax generating optical element provided corresponding to a first surface, which is one wide surface of the plate-like body, and a volume that can be physically connected to at least a part of the plate-like body to store the plate-like body. A housing having a storage space, and a light absorbing member so as to face the first or second surface of the plate-like body housed in the storage space, and by changing the posture of the plate-like body The first surface is directed in a predetermined direction so that the light that has passed through the parallax generating optical element travels in the predetermined direction, or the second surface that is the back surface of the first surface is in the predetermined direction. The light that does not pass through the parallax generation optical element travels in the predetermined direction.

In the present invention, first, the “parallax generating optical element” is an element that can display a right-eye image and a left-eye image, for example, in each of two display ranges. Specifically, for example, a parallax barrier, a lenticular lens, and the like are included. Thereby, the light emitted from the light emitting element and passed through the parallax generating optical element can constitute, for example, a stereoscopic image or a three-dimensional image.
And in this invention, since such a parallax production | generation optical element is provided corresponding to the 1st surface of a plate-shaped object, when the said 1st surface turns to a predetermined direction, the said three-dimensional image etc. That is, for example, it can be visually recognized when the viewer faces the first surface. On the other hand, when the second surface, which is the back surface of the first surface, faces in a predetermined direction, that is, for example, when the viewer faces the second surface, the light emitted from the light emitting element does not “pass through” the parallax generating optical element. Therefore, a two-dimensional image can be visually recognized. Whether the viewer faces the first surface or the second surface depends on “change in the posture of the plate-like body”.
In this way, according to the present invention, both display of a three-dimensional image or the like and display of different types of images such as two-dimensional image display can be realized in one apparatus.
Incidentally, the present invention basically does not select a stereoscopic image display method when displaying these different kinds of images. That is, it is possible to display both a three-dimensional image and a two-dimensional image by any method.
Further, in the present invention, since different types of images are displayed on different surfaces, the amount of light may be drastically reduced when any one of the images is displayed as in the related art described above. Absent. Furthermore, even if the parallax barrier is adopted in the present invention,
For that purpose, electronic control or the like is not required, so that no increase in cost is brought about.
Further, the plate-like body is stored in the storage space in the housing, and both of them exhibit an “integral appearance”. This contributes to the creation of various advantages such as being able to give a smart impression in design and being convenient to carry.
Further, since the light absorbing member is provided so as to face, for example, the first surface of the plate-like body stored in the storage space, the light emitted from the first surface is absorbed by the light absorbing member. Therefore, in this case, when visually recognizing the second surface opposite to this, the light emitted from the first surface does not cause a disturbance or get in the way.

  In addition, this invention includes the case where the light-emitting device which concerns on it is not used for the use of a three-dimensional image display. This is because the “parallax generating optical element” can be used not only to display a three-dimensional image but also to display an image having unique contents to two viewers corresponding to the two display ranges. is there.

In the light emitting device of the present invention, there are a plurality of the light emitting elements, and the plurality of light emitting elements display a three-dimensional image through the first surface, and display a two-dimensional image through the second surface. It may be configured as follows.
According to this aspect, an image can be displayed through turning on / off each of the plurality of light emitting elements. This image includes a three-dimensional image and a two-dimensional image. In this aspect, display of at least two kinds of images can be realized in one apparatus.

In the light emitting device of the present invention, the light emitting device further includes connection means for rotatably connecting the plate-like body to the housing, and changing the posture of the plate-like body is based on the rotation of the plate-like body. You may comprise as follows.
According to this aspect, the change of the posture of the plate-like body is suitably or easily performed. In addition, the use of the “connecting means” in the present embodiment is one of the most suitable examples of the present invention in order to change the posture of the plate-like body while physically connecting the plate-like body to the casing. provide.

In this aspect, the plate-like body includes a rectangular shape in plan view, and the connecting means includes a first rotation shaft that is rotatable along one side of the plate-like body and having the one side as an axis. The posture of the plate-like body may be changed by turning the first turning shaft.
According to this aspect, the “connecting means” takes a preferred specific example, and therefore, the connection of the plate-like body to the housing and the change of the posture of the plate-like body are more preferable than the above. become. In particular, in the case of this aspect, it is possible to easily assume or construct a configuration in which the second surface appears if the first rotation shaft is rotated in a state where the first surface appears. In view of the fact that this configuration most closely matches the above-described gist of the present invention for displaying different types of images on the first and second surfaces, the superiority of this aspect stands out.

Furthermore, in this aspect, the connecting means further includes a second rotating shaft that intersects with the first rotating shaft and is rotatable independently of the first rotating shaft, and has a posture of the plate-like body. The change may be configured by turning at least one of the second turning shaft and the first turning shaft.
According to this aspect, the “connecting means” takes a more preferable specific example. Therefore, the connection of the plate-like body to the housing and the change of the posture of the plate-like body are more than the above. Furthermore, it becomes suitable. In particular, in the case of this aspect, the degree of freedom regarding the posture change of the plate-like body is greatly increased. For example, the installation posture of the light emitting device according to the present invention is in a certain predetermined state in order to visually recognize a three-dimensional image or the like. There is almost no inconvenience such as being forced to be maintained or forcing the viewer into an unreasonable posture.

In this aspect, the light absorbing member may be configured to be provided on at least a part of a wall surface forming the storage space.
According to this aspect, an example of the most suitable installation place for the “light absorbing member” is provided. In the case of this aspect, for example, if the first surface faces the light absorbing member, the visual recognition of the second surface can be performed while maintaining the integrated appearance of the housing and the plate-like body.

Further, in an aspect including the “light absorbing member”, the housing includes a cover member that exposes or hides the first or second surface of the plate-like body stored in the storage space from the outside. The light absorbing member may be provided on a surface of the cover member that can face the first surface or the second surface.
According to this aspect, another example of the most preferable installation location for the “light absorbing member” is provided. In this case, if the structure or installation mode of the “cover member” is appropriately set, the visual recognition of the first surface and the visual recognition of the second surface can be performed while maintaining the integrated appearance.

Further, in an aspect including the “light absorbing member”, the light absorbing member may be configured to be opposed to the first surface.
According to this aspect, since the light absorbing member faces the first surface, the visual recognition of the second surface is not disturbed by the light emitted from the first surface. As described above, since the first surface is a surface corresponding to the provision of the parallax generating optical element, a three-dimensional image can be displayed, and a two-dimensional image can be displayed on the second surface. In an aspect, so to speak, a two-dimensional image will benefit from the light absorbing member.

This can bring about the following effects.
That is, for example, as described above, when the case where the light absorbing member is installed on the wall surface of the storage space is taken into consideration, when the integrity of the appearance of the plate-like body and the housing is maintained, the two-dimensional The image is visually recognized, and the light emitted from the first surface for visual recognition of the image does not get in the way.
On the other hand, when the three-dimensional image is viewed, it is necessary to “change the posture of the plate-like body”, and in this aspect, the first surface faces the light absorbing member. Naturally, it is natural to think that the unity of the external appearance of the plate-like body and the casing “disintegrates”. “Crash” here does not imply any negative nuances. Rather, when viewing a three-dimensional image, it is preferable to maintain the integrity. This is because, when viewing a 3D image, it is preferable to create a situation in which the viewer can focus only on the image display surface (if there are other objects to be viewed around the 3D image). The viewer may be forced to use a kind of unnatural visual method such as gazing at the image display surface while ignoring the presence of the viewer.) If the integrity is “broken”, there is a very high possibility that a situation in which such a visible object does not exist around the “plate-like body” is created.
To summarize the above, in this aspect, when a two-dimensional image is visually recognized, the image is not disturbed by light emitted from the first surface, and the two-dimensional image can be clearly viewed, while 3 When a three-dimensional image is visually recognized, a situation in which only the plate-like body is stared can be suitably created, so that a suitable three-dimensional image can be visually confirmed.
Thus, it is more room for the light-absorbing member to produce a meaningful effect than the case where the light-absorbing member is disposed to face the “first surface”.

In the light emitting device of the present invention, there are a plurality of the light emitting elements, and in order to display an image having a predetermined content on the first or second surface, the light emitting device further includes control means for controlling the plurality of light emitting elements, The control means may be configured to control the plurality of light emitting elements so that an image having the same content is displayed on the first or second surface regardless of a change in the posture of the plate-like body. Good.
According to this aspect, the viewer can visually recognize images having the same content regardless of whether they face the first surface or face the second surface. Note that “display an image of the same content” in this aspect means that, for example, when there is a landscape image with mountains and the sea, when it is displayed on the first surface, it is also displayed on the second surface. It means that it is done. In this case, the landscape image can be three-dimensional on the first surface and two-dimensional on the second surface, as a matter of course for the purpose of the present invention. It cannot be said that it is not “same content”.
In addition to the function of displaying the “same content” image as described above, the “control means” referred to in this aspect includes a plurality of “display units” for displaying “different contents” images on the first and second surfaces. It can naturally have a function of controlling the light emitting element.

In this aspect, the control means is a data signal supply circuit for supplying a data signal designating the light emission intensity to each of the plurality of light emitting elements, and the data signal in the case of displaying an image on the first surface. And a switching circuit that performs switching between the first data signal and the second data signal that is the data signal when an image is displayed on the second surface.
According to this aspect, the above-mentioned “image of the same content” is preferably displayed.
For a more specific example regarding this aspect (especially, the actual contents of the first and second data signals, etc.), see, for example, the description related to FIGS. 7 and 8 in the embodiments described later.

In this aspect, the switching circuit may be configured to automatically perform the switching according to a change in the posture of the plate-like body.
According to this aspect, since the switching is automatically performed according to the change in the posture of the plate-like body, the user's hand is not bothered.

In an aspect including a “switching circuit”, the switching circuit may include a manual switch for manual operation by a user related to the switching.
According to this aspect, the switching can be performed when the user desires. In this case, if there is an operation on the manual switch, the switching may be performed regardless of the change in the posture of the plate-like body.

In the light emitting device of the present invention, the parallax generating optical element may include a lenticular lens.
According to this aspect, since the parallax generating optical element includes the lenticular lens, stereoscopic image display can be performed relatively easily and inexpensively. As described above, the present invention can be applied basically regardless of the stereoscopic image display method including such a method, but this aspect can be said to be one of the manifestations thereof. .

In the light emitting device of the present invention, the parallax generating optical element may include a parallax barrier.
According to this aspect, since the parallax generating optical element includes the parallax barrier, stereoscopic image display can be performed relatively easily and inexpensively. As described above, the present invention can be applied basically regardless of the stereoscopic image display method including such a method, but this aspect can be said to be one of the manifestations thereof. .

In the light emitting device of the present invention, the light emitting element may include an organic EL (electro luminescent) element.
According to this aspect, since the light emitting element includes the organic EL element, the light emitting element that emits light toward both wide surfaces of the plate-like body can be suitably configured. For a more specific example regarding this aspect, refer to the description in the embodiment described later.

  Hereinafter, embodiments according to the present invention will be described with reference to FIGS. 1 to 5. In FIGS. 1 to 5 and other drawings referred to below, the scale of each layer and each member is different in order to make each layer and each member recognizable on the drawing. There may be.

The organic EL device (light emitting device) Ap1 according to this embodiment includes a housing M0, an operation unit M1, and an organic EL panel 100, as shown in FIG. Of these, the housing M0 has a substantially rectangular parallelepiped shape with a relatively small thickness, as shown. Inside the case M0, in addition to the organic EL panel 100, various electric wirings connected to the organic EL panel 100, a control board, a power source such as a battery, a communication antenna, and a drive circuit described later 53 and so on.
The operation unit M1 is provided on a part of the surface of the housing M0. The specific mode of the operation unit M1 may vary. That is, various keys including a cross key, buttons, a touch panel or a touch pad, a trackball, and the like. In FIG. 1, the operation unit M1 is simply represented by a square.

As shown in FIG. 1 and FIG. 2, the organic EL device Ap1 has an integrated appearance as a whole by accommodating the organic EL panel 100 in a storage space M3 built as a part of the housing M0. Presents. As shown in FIG. 2, the volume of the storage space M3 is substantially the same as the volume of the organic EL panel 100, and the former has an appropriate relationship for exactly storing the latter (therefore, both volumes are (Although it is almost the same, the volume of the storage space M3 is necessarily slightly larger.)
Further, a light absorbing member 70 is provided at the bottom of the storage space M3 as shown in FIG. As apparent from the arrangement, the light absorbing member 70 faces a three-dimensional image display surface 120 of the organic EL panel 100, which will be described in detail later. Thereby, the light absorbing member 70 absorbs light emitted from the three-dimensional image display surface 120. Such a light absorbing member 70 is made of, for example, a hard or soft resin coated with an appropriate black paint, a black cloth, or the like.

The organic EL panel 100 has a configuration as shown in FIG. In FIG. 3, the organic EL panel 100 includes an element substrate 10, a sealing substrate 20, a lenticular lens 40, and the like. Among these, the element substrate 10 and the sealing substrate 20 are made of a light-transmitting material such as glass, quartz, or plastic. Further, as shown in FIG. 4, the element substrate 10 and the sealing substrate 20 are bonded to each other at the peripheral portion by an adhesive JB. The adhesive JB also plays a role of preventing moisture or oxygen from entering the space between the element substrate 10 and the sealing substrate 20.
Such an integrated structure of the element substrate 10 and the sealing substrate 20 corresponds to a specific example of “a plate-like body” in the present invention.

  As shown in FIG. 3 or FIG. 4, the element substrate 10 includes organic EL elements 8 arranged on the substrate surface (“down” in terms of the drawing) according to a matrix arrangement. On the element substrate 10, as conceptually shown in FIG. 5, the scanning lines 3 are formed along the row direction of the matrix-like array, and the data lines 6 are formed along the column direction. The scanning line 3 is connected to the scanning line drive circuit 103, and the data line 6 is connected to the data signal supply circuit 106 (these are also formed on the element substrate 10). Furthermore, on the element substrate 10, a TFT (Thin Film Transistor) that functions as a switching element or a current supply source to the organic EL element 8, an element substrate 10 such as the scanning line 3, the data line 6, and the organic EL element 8. An interlayer insulating film or the like (not shown) is provided for realizing the preferred arrangement above or preventing a short circuit between these elements.

  The organic EL element (light emitting element) 8 has a laminated structure as shown in FIG. This stacked structure includes a pixel electrode 13, a light emitting functional layer 18, and a counter electrode 5.

As shown in FIG. 3 or FIG. 4, the pixel electrodes 13 are formed on the element substrate 10 (“down” in terms of the drawing) so as to be arranged in a matrix. The fact that the organic EL elements 8 are arranged in a matrix corresponds to the fact that the pixel electrodes 13 are arranged in a matrix as described above (see FIGS. 3 and 4). A partition 340 is formed between the pixel electrodes 13 to demarcate each pixel region. The partition 340 is made of, for example, an insulating transparent resin material (fluorine resin, acrylic resin, epoxy resin, polyimide, or the like).
The pixel electrode 13 can apply, for example, a current supplied via the TFT or the like to the light emitting functional layer 18.
The pixel electrode 13 is made of a light-transmitting and conductive material such as ITO (Indium Tin Oxide).

As shown in FIG. 4, the light emitting functional layer 18 is formed on the pixel electrode 13 (“down” from the viewpoint in the drawing). The light emitting functional layer 18 includes at least an organic light emitting layer, and the organic light emitting layer is composed of an organic EL material that emits light based on a recombination phenomenon of holes and electrons. When the organic EL material is, for example, a polymer material, the organic EL material is supplied only within each space partitioned by the partition wall 340 (that is, for each pixel) by, for example, a droplet coating method (inkjet method). Is done.
As described above, according to the aspect in which the organic EL material is supplied only to the space partitioned by the partition wall 340, the light emitting functional layer 18 can be provided separately for each color as shown in FIG. 3 and 4 show an example in which light emitting functional layers 18R, 18G, and 18B including organic EL materials dedicated to red light, green light, and blue light are formed in this order along the X direction in the drawing. Has been. Along the Y direction in the figure, there are arranged a row in which only the light emitting functional layers 18R are arranged, a row in which only the light emitting functional layers 18G are arranged, and a row in which only the light emitting functional layers 18B are arranged. The organic EL element 8 includes an organic EL element 8R that emits red light, an organic EL element 8G that emits green light (see FIG. 4), and an organic EL element 8B that emits blue light according to the distinction between the light emitting functional layers 18R, 18G, and 18B. , Consist of
In addition, as another layer which comprises the light emission functional layer 18, you may provide a part or all of an electron block layer, a hole injection layer, a hole transport layer, an electron transport layer, an electron injection layer, and a hole block layer. Good.
In the description of the present embodiment and the notation on the drawings, the reference numeral “18” indicating the “light emitting functional layer” represents the case where the above-described reference signs “18R”, “18G”, and “18B” are representative. I am using it. As is clear from the above description, the same applies to the code “8” (the code “8” is used to represent all of the codes “8R”, “8G”, and “8B”).

As shown in FIG. 4, the counter electrode 5 has a rectangular shape that covers the entire surface of the element substrate 10 in a plan view (so-called solid shape having no special opening, gap, or the like). It is formed. That is, the counter electrode 5 extends over the area of the light emitting functional layer 18 defined by the partition 340 and the partition 340 so as to be common to the plurality of pixel electrodes 13.
For example, the counter electrode 5 is electrically connected to a power line (not shown) and set to an appropriate potential (for example, ground potential).
Such a counter electrode 5 is formed, for example, on a metal thin film such as Ca or Mg formed so thin as to transmit light, and on the metal thin film in order to reduce the electric resistance of the metal thin film. It is made of a light-transmitting and conductive thin film such as ITO (Indium Tin Oxide).

The organic EL element 8 emits light based on the structure including the pixel electrode 13, the light emitting functional layer 18, and the counter electrode 5 described above. That is, (i) holes are injected into the light emitting functional layer 18 from the pixel electrode 13 as an anode and electrons are injected from the counter electrode 5 as a cathode. (Ii) excitons are generated by recombination of these holes and electrons. (Iii) It appears that when this exciton transitions to the ground state, energy emission, ie a luminescence phenomenon, occurs.
Here, particularly in the present embodiment, since both the element substrate 10 and the counter electrode 5 have translucency as described above, the light emitted from the light emitting functional layer 18 is shown in FIG. Proceed in any direction. In this case, the light LP travels through the counter electrode 5 and the sealing substrate 20 so as to be emitted from the two-dimensional image display surface 110 to the outside, and the light LC is transmitted to the pixel electrode 13 and the element substrate. 10 passes through the three-dimensional image display surface 120 so as to be emitted outward (see also FIG. 1 to FIG. 3). In addition to the element substrate 10, the light LC will be described immediately later. In addition, the lenticular lens 40 and the cover glass CG are also transmitted.)
In short, the organic EL panel 100 according to this embodiment is a so-called dual emission type.

It should be noted that in FIG. 1 to FIG. 4, for example, the relationship in the vertical direction in the figure is reversed between FIG. 2 and FIG. 3 (By the way, regarding this “vertical direction” point, Since FIG. 1 is the same as FIG. 2 and FIG. 4 is the same as FIG. 3, for example, the relationship in the vertical direction in FIG.
In the following description, the 2D image display surface 110 is abbreviated as “2D display surface 110”, and the 3D image display surface 120 is abbreviated as “3D display surface 120”.

In addition to the above, the organic EL panel 100 of the present embodiment includes the lenticular lens 40 so as to correspond to the 3D display surface 120 thereof.
As shown in FIG. 3 or FIG. 4, the lenticular lens 40 is composed of a set of single lenses 42, 42,... Having a substantially semicircular cross section. Each of the single lenses 42, 42,... Has a width corresponding to two columns of the organic EL elements 8, and corresponds to the entire length of each organic EL element 8 arranged along the column direction. It has a length. In this way, the lenticular lens 40 has a structure in which a plurality of long single lenses 42, 42,... Along the column direction are arranged along the row direction.
Such a lenticular lens 40 is made of a translucent material such as glass, quartz, or plastic.

According to the lenticular lens 40, a three-dimensional image can be displayed. For example, when focusing on the single lens 42 shown in the middle of FIG. 4, light from the light emitting functional layer 18B incident on the left side of the single lens 42 in the drawing is refracted by the single lens 42 toward the direction DA. The light from the light emitting functional layer 18G that travels and enters the right side in the figure travels in the direction DR. In this way, two images with slightly different contents can be displayed in each of the two display ranges RD1 and RD2 separated by a certain amount (or appropriate parallax can be set). In this case, if the two display ranges RD1 and RD2 correspond to the right and left eyes of the viewer and the contents of the two images are appropriately set, the viewer feels a stereoscopic effect. be able to.
In this embodiment, in relation to the arrangement order of the light emitting functional layers 18R, 18G, and 18B, images based on light traveling in the direction DA are R, B, G, R in order from the left end in FIG. , B, G,..., Whereas the image based on the light traveling in the direction DR is an image based on the G, R, B, G, R, B,. Become.

In relation to the lenticular lens 40, the organic EL panel 100 of the present embodiment includes a cover glass CG (not shown in FIG. 3) as shown in FIG. This cover glass CG is installed at a certain distance from the upper surface of the lenticular lens 40 in the drawing by providing a pole CGP having a certain height at the peripheral portion thereof.
Thereby, the upper surface of the lenticular lens 40 in the drawing, that is, the lens surface is protected. Further, as described above, it is preferable that a certain distance is provided between the cover glass CG and the lenticular lens 40 because the lens action in the lenticular lens 40 is not lost.

As shown in FIG. 1 or FIG. 2, the organic EL panel 100 having the configuration as described above is connected to the housing M0 via the hinge portion M2.
As shown in FIG. 2, the hinge part (connecting means) M2 includes a rotation shaft M21 and a hinge cover M22. The rotation axis M21 is rotatable along one short side that is one side of the housing 10 and with the one short side as an axis (see symbol Ar in FIGS. 1 and 2). For example, such a rotation axis M21 has a structure including an outer cylinder and an inner cylinder housed therein (both not shown). In this case, if the housing M0 is fixedly connected to the outer cylinder side and the organic EL panel 100 is fixedly connected to the inner cylinder side, the inner cylinder rotates while sliding with the inner peripheral surface of the outer cylinder. The organic EL panel 100 can be rotated as shown in FIG. As the organic EL panel 100 rotates, the hinge cover M22 rotates as shown in FIG.

  In response to such rotation of the organic EL panel 100, the organic EL panel 100 changes its posture in relation to the viewer. More specifically, when the organic EL panel 100 is stored in the storage space M3 of the housing 10, the 2D display surface 110 of the organic EL panel 100 faces the viewer, and the organic EL panel When 100 leaves the storage space M3, the 3D display surface 120 faces the viewer. This point will be described in detail later.

In addition to the above, the organic EL device Ap1 of the present embodiment includes a drive circuit 53 that is connected to the counter electrode 5 and the pixel electrode 13 described above and drives the organic EL panel 100.
The driving circuit 53 includes the scanning line driving circuit 103 that supplies a selection signal to the scanning line 3 and the data signal supply circuit 106 that supplies a data signal to the data line 6 described above with reference to FIG. . The scanning line driving circuit 103 issues a selection signal in units of one pixel row and defines a horizontal scanning period. The data signal supply circuit 106 supplies a data signal designating the light emission intensity of the organic EL element 8 to the pixel row selected by the scanning line driving circuit 103 (that is, the data signal is supplied to each pixel located in the row). Write.) The time from the start of the supply of the image signal to the first pixel row to the supply of the image signal to the final pixel row is the vertical scanning period.

  The drive circuit 53 also includes a display surface switching circuit 54. As shown in FIG. 5, the display surface switching circuit 54 includes a switching unit 541, a two-dimensional image display data processing circuit 542, and a three-dimensional image display data processing circuit 543 (hereinafter, the latter two are respectively shown). , “2D processing circuit 542” and “3D processing circuit 543”).

  The switching unit 541 operates one of the 2D processing circuit 542 and the 3D processing circuit 543 according to the rotation of the organic EL panel 100 described above or the opening / closing operation of the organic EL panel 100 with respect to the housing 10. In this embodiment, in particular, the switching unit 541 is provided in the vicinity of the hinge portion M2 as shown in FIG. 1 (or FIG. 6 referred later), and automatically detects the rotation angle of the hinge portion M2. To do. Thereby, the switching unit 541 automatically performs the 2D processing circuit 542 and the 3D processing circuit 543 in accordance with the rotation angle of the hinge unit M2 (that is, the opening angle with respect to the housing M0 of the organic EL panel 100). Either one of them is operated.

  The 2D processing circuit 542 performs various processes including generation of a data signal (an example of “second data signal” in the present invention) for displaying a two-dimensional image on the 2D display surface 110 on the organic EL panel 100. Execute. Based on this, the data signal supply circuit 106 is operated. The 3D processing circuit 543 performs various processes including generation of a data signal (an example of “first data signal” in the present invention) for displaying a three-dimensional image on the 3D display surface 120 on the organic EL panel 100. Execute. Based on this, the data signal supply circuit 106 is operated.

Hereinafter, the operation or action of the organic EL device Ap1 having the above configuration will be described with reference to FIGS. 6 to 8 in addition to FIGS. 1 to 5 already referred to.
The organic EL device Ap1 according to the present embodiment displays a two-dimensional image or a three-dimensional image according to the posture of the organic EL panel 100. First, as shown in FIG. 1 already referred to, when the organic EL panel 100 is stored in the storage space M3 of the housing M0, the organic EL panel 100 displays a two-dimensional image on the 2D display surface 110. . In this case, the switching unit 541 selects the operation of the 2D processing circuit 542, and the data signal supply circuit 106 operates based on it.
At this time, although the light LC is also emitted from the 3D display surface 120 (see FIG. 4), the light LC is absorbed by the light absorbing member 70. Therefore, the light LC does not get in the way for a viewer who views the two-dimensional image.

On the other hand, when the organic EL panel 100 is rotated by rotating the hinge part M2 from the state of FIG. 1, the organic EL panel 100 displays a three-dimensional image on the 3D display surface 120. The details will be described below.
First, the rotation of the organic EL panel 100 is started in the state of FIG. In this case, it is convenient to use the hook hole 100A. As long as the user inserts a finger or the like into the hooking hole 100A and lifts the end of the organic EL panel 100, the organic EL panel 100 starts to rotate easily with the hinge M2 as an axis.
The subsequent situation is shown in detail in FIG. That is, FIG. 6A shows a state where the 3D display surface 120 has already appeared outside, although it is still in the middle of rotation. FIG. 6B shows a state where the rotation of the organic EL panel 100 is completed.

  6B, the switching unit 541 automatically detects the state and selects the operation of the 3D processing circuit 543 instead of the 2D processing circuit 542 (see FIG. 5). ). As a result, the 3D processing circuit 543 executes processing for generating a data signal for displaying a three-dimensional image. Here, the existence of the following differences is considered in the data signal processing in the 3D processing circuit 543 and that in the previous 2D processing circuit 542.

That is, as can be seen from the coordinate axes (represented by X, Y, and Z in the figure) fixed to the organic EL panel 100 shown in FIG. 6, FIG. 1, FIG. In the state of FIG. 6, the positive direction of X is directed from the upper side to the lower side in the figure, whereas in the state of FIG. Therefore, for example, if a unique number D ₁ , D ₂ , D ₃ ,... Is assigned to each of the N data lines 6, in the state of FIG. 1, they are aligned with D ₁ , D ₂ , D ₃ ,. However, in the state of FIG. 6B, when viewed in the “same direction”, D _N , D _N−1 , D _N−2 ,...
In FIG. 7 and FIG. 8, these two states are expressed conceptually and visually. That is, FIG. 8 shows a two-dimensional image display state, and the data lines 6 are arranged in order from the right in the figure as D ₁ , D ₂ , D ₃ ,. In FIG. 7 showing the image display state, D ₁ , D ₂ , D ₃ ,... Are arranged in order from the left in the drawing (that is, when viewed from the right in FIG. 7, D _N , D _N−1 , D _{N -2} ,...

For this reason, with respect to the viewer in the same state for between 7 and 8, if intended to display a picture of the same contents, for example, a simple, conventional, data lines having the unique number D _N 6 data signal which has been supplied to the newly needs to be supplied to the data line 6 having a unique number D _1, and so on, depending on the order of change of the data line 6, the data The order of signal supply needs to be changed.
In addition to such measures, an appropriate measure for displaying a three-dimensional image or necessary for parallax setting is also necessary. For example, based on the matters described above with reference to FIG. That is, in the two-dimensional image display state, the data signal corresponding to the data signal supplied to the data line 6 having the unique numbers _DN , _DN-1 and _DN-2 is not displayed in the three-dimensional image display state. With respect to the directions DR and DA in FIG. More specifically, unique number _{D N, D N-1,} D N-2 data signal corresponds to the inherent number _{D 1, D 3, D 5} , and, unique number _{D 2, D} 4, D ₆ needs to be reconfigured as a data signal corresponding to each of D ₆ (the former is for direction DA and the latter is for direction DR).

  The 3D processing circuit 543 performs various processes related to the data signal as described above. Then, the data signal supply circuit 106 supplies the data signal having undergone such processing to the data line 6.

As a result, a 3D image is displayed on the 3D display surface 120. The content of the 3D image is the same as the content of the previous 2D image.
In the above description, the change from 2D to 3D, that is, FIG. 1 → FIG. 6 (A) → FIG. 6 (B), is described, but the reverse, that is, FIG. 6 (B) → FIG. Needless to say, the organic EL device Ap <b> 1 of the present embodiment also operates appropriately for the change from three dimensions to two dimensions shown in FIG. 1.

According to the organic EL device Ap1 having the above-described configuration and operation, the following effects are exhibited.
(1) First, according to the organic EL device Ap1 of the present embodiment, as described above, display of both a two-dimensional image and a three-dimensional image is realized by a single device. Thereby, the user can select two-dimensional or three-dimensional display according to the content of the image, for example, and can grasp the content of the image in a display mode suitable for each.

(2) In the organic EL device Ap1 of the present embodiment, the rotation of the organic EL panel 100 is realized by the hinge part M2 shown in FIG. 2 and the like, so that the connection of the organic EL panel 100 to the housing M0 is also possible. In addition, the posture of the organic EL panel 100 can be easily and suitably changed. In particular, in the present embodiment, as described with reference to FIGS. 1 and 6, the 3D surface 120 is extremely easy to rotate by simply rotating the rotation axis M21 in a state where the 2D display surface 110 appears. (And vice versa).
As described above, the configuration according to the present embodiment provides one of the most preferable examples in the case of displaying a 2D image on the 2D display surface 110 and a 3D image on the 3D display surface 120, respectively.

(3) Since the organic EL device Ap1 of the present embodiment is configured so that the organic EL panel 100 and the housing M0 have an integrated appearance, it is possible to give the user a very smart impression in terms of design. (Refer to FIG. 1), and the advantage of being easy to carry is enjoyed. This is because, as already described, in the present embodiment, the organic EL panel 100 is stored in the storage space M3 built in the housing M0.

(4) According to the organic EL device Ap1 of the present embodiment, since the light absorbing member 70 is provided at the bottom of the storage space M3, when the user visually recognizes the 2D display surface 110, the 3D display surface. In other words, the light emitted from 120 does not cause disturbance or disturb.
Furthermore, in this embodiment, in the present embodiment, when visually recognizing the 3D display surface 120, there is no object to be visually recognized around the organic EL panel 100 that obstructs the visual recognition (see FIG. 6 (B)). Generally, when visually recognizing a three-dimensional image, it is preferable to create a situation in which the viewer can watch only on the image display surface. This is because if the object to be viewed exists, the viewer may be forced to use a kind of unnatural viewing method such as gazing on the image display surface while ignoring the presence. According to this, it becomes difficult for a viewer to feel a three-dimensional effect naturally, or there is a risk of increasing the fatigue of the viewer's eyes.
In this regard, in the present embodiment, when viewing a three-dimensional image, the situation as shown in FIG. 6B, that is, the situation where only the organic EL panel 100 is stared is suitably created. Thus, a suitable visual recognition without accompanying can be made.

(5) In the organic EL device Ap1 of the present embodiment, the same image display is performed both in the state of FIG. 1 and in the state of FIG. 6B. Accordingly, it is possible to perform continuous observation on images having the same content, or to observe a portion that was not expressed in the two-dimensional display, in a three-dimensional display.
In addition, in the present embodiment, the change from the display of the two-dimensional image in the state of FIG. 1 to the display of the three-dimensional image in the state of FIG. 6B is simply by rotating the organic EL panel 100. Since it is automatically performed by the action of the switching unit 541, it does not bother the user's hand and is very convenient.
In FIG. 1 and the like, the vertical direction and the horizontal direction of the screen may be basically set in any manner. For example, the top → bottom of the screen may be determined along the + X direction or −X direction in FIG. 1, or the top → bottom of the screen may be determined along the + Y direction or −Y direction in FIG. 1. Good.

As mentioned above, although embodiment concerning this invention was described, the light-emitting device concerning this invention is not limited to the form mentioned above, Various deformation | transformation are possible.
(1) In the above embodiment, the lenticular lens 40 is used to display a three-dimensional image, but the present invention is not limited to such a form.
For example, as shown in FIG. 9, a parallax barrier 45 may be used instead of the lenticular lens 40. The parallax barrier 45 includes apertures 45a, 45a,... Corresponding to two pixel columns one by one.
In such a structure, for example, when attention is paid to the aperture 45a shown in the middle in FIG. 9, light from the light emitting functional layer 18B located on the left side of the aperture 45a in the drawing travels in the direction DA. Light from the light emitting functional layer 18R located on the right side travels in the direction DR. Therefore, even with such a structure, three-dimensional image display is possible.
Incidentally, as is clear from this, the present invention basically does not select a stereoscopic image display method. The present invention is basically applicable to any system.
Although both the parallax barrier 45 shown in FIG. 9 and the lenticular lens 40 of the above-described embodiment are examples corresponding to two viewpoints, the present invention is naturally not limited to this. Naturally, it is possible to support multi-viewpoints such as 4 viewpoints and 8 viewpoints.

(2) In each of the above embodiments, the hinge portion M2 has only one rotation axis M21, but the present invention is not limited to such a configuration.
For example, like the organic EL device Ap2 shown in FIG. 10, a hinge part M20 having two rotation axes, a first rotation axis M201 and a second rotation axis M202, may be provided. Among these, it is clear from the drawing that the first rotation axis M201 performs substantially the same function as the rotation axis M21 of the above embodiment. However, the installation location of both is different. That is, the rotation axis M21 of the above embodiment is arranged along almost all the short sides of the casing M0, whereas the first rotation axis M201 of FIG. 10 is the long side of the casing M0. (Refer to (3) described later for this point).

  On the other hand, as shown in FIG. 10, the second rotation axis M202 is attached so as to be orthogonal to the first rotation axis M201, and can rotate independently of the first rotation axis M201. (See symbol Br in the figure).

  According to such a structure of FIG. 10, the connection of the organic EL panel 100 to the housing M0 and the change in the attitude of the organic EL panel 100 are not inferior to those in the above embodiment. In particular, in the case of such a structure, the degree of freedom regarding the change in the posture of the organic EL panel 100 is greatly increased. For example, the installation posture of the organic EL device Ap2 is maintained in a predetermined state in order to visually recognize a three-dimensional image. There is almost no inconvenience such as being forced to be performed or forcing the viewer into an unreasonable posture.

(3) Although the above embodiment describes the case where the data lines 6 are changed between the states of FIG. 1 and FIG. 6B, the present invention is not limited to such a form.
For example, referring to FIG. 10, in this structure, as described above, the first rotation axis M201 is arranged so as to be orthogonal to the rotation axis M21 of the above embodiment. ing. Therefore, if there is no change in the mounting direction of the organic EL panel 100 between the two (= in the closed state, the data line 6 is parallel to the short side of the housing M0 and the scanning line 3 is parallel to the long side). In the case of FIG. 10, the arrangement of the data lines 6 is not changed according to the open / close state of the organic EL panel 100, but the arrangement of the scanning lines 3 is changed. If the symbols 3 ₁ , 3 ₂ , 3 ₃ ... Shown in FIG. 10 are used, in the closed state, M scanning lines 3 are denoted by symbols 3 ₁ , 3 ₂ , 3 _{3 in} order from the “lower” in the figure. In the open state, the lines are arranged in the order from the “upper” side in the figure (from the lower side in the figure, 3 _M , 3 _M−1 , 3 _M−2 ... In that order).
As described above, various “changes in the posture” of the organic EL panel 100 can be assumed depending on the structure of the hinge portion and the like. Then, if it is intended to display an image of “same content” accordingly, appropriate execution of supply of a data signal or supply of the selection signal (signal for driving the scanning line 3) or the like is performed accordingly. It is necessary to control all organic EL elements 8 while
The present invention keeps all such cases within its scope.

(4) Regarding the various “changes in posture” just described, in the above-described embodiment, the aspect in which the posture is changed by the rotation of the organic EL panel 100 has been described. It is not limited.
That is, the organic EL panel 100 does not necessarily need to be rotatable. For example, like the organic EL device Ap3 shown in FIG. 11, the organic EL panel 100 may be fixed to the housing M0. Even in such a case, the state shown in FIG. 11A is changed to the state shown in FIG. 11B (this state corresponds to a state where the entire organic EL device Ap3 in FIG. 11A is turned over. This is because the organic EL panel 100 can be said to have changed its posture with respect to the viewer. In FIG. 11B, the 2D display surface 110 from which the light LP is emitted faces the viewer.

More specifically, the organic EL device Ap3 shown in FIG. 11 has the state transition between FIG. 11A and FIG. 11B described above, and the state shown in FIG. 11A to the state shown in FIG. Transition to is also possible. The state transition in this case is that the cover member M4 provided so as to cover a part of the housing M0 slides along the surface and the side surface of the housing M0 (reference numeral in FIG. 11C). Cs). Thereby, the 3D display surface 120 from which the light LC is emitted can be exposed to the outside.
Eventually, according to the organic EL device Ap3 shown in FIGS. 11A to 11C, the exposure of the 2D display surface 110 to the outside world is realized in the state of FIG. 11B, and that of the 3D display surface 120 is This is realized in the state of FIG. In this case, in accordance with the phrase “FIG. 1 → FIG. 6 (A) → FIG. 6 (B)” (or vice versa) described in the above embodiment, in this case, “FIG. 11 (B) → FIG. 11 (A)”. → FIG. 11 (C) ”(or vice versa).
In any case, in this case, the 2D display surface 110 or the 3D display surface 120 can be opposed to the viewer. Even in such a case, it is apparent that the operational effects that are essentially different from the operational effects achieved in the above-described embodiment are exhibited.
Also in this case, by using an appropriate sensor such as an acceleration sensor or an optical sensor, the same operation as that of the switching unit 541 of the above embodiment, that is, automatic switching of image display can be performed.

(5) Although the said embodiment demonstrated the aspect with which the light absorption member 70 is provided in the bottom of the storage space M3, this invention is not limited to this form.
For example, referring to FIG. 11 described above, in this structure, the light absorbing member 71 is provided in the cover member M4 as shown in FIG. As shown in the figure, the cover member M4 includes a plate-like portion M41 and a side wall portion M42 that stands along the both sides of the plate-like portion M41 and is perpendicular to the surface of the plate-like portion M41. Have. The light absorbing member 71 is attached to the back surface of the plate-like part M41.
With this configuration, the 3D display surface 120 faces the light absorbing member 71 in the state of FIG. 11B, that is, in the state where the 2D display surface 110 faces the viewer. Therefore, similarly to the above-described embodiment, the light emitted from the 3D display surface 120 does not interfere with the visual recognition of the 2D display surface 110. In the form as shown in FIG. 11, the viewer can visually recognize both the two-dimensional image and the three-dimensional image while maintaining the integrity of the appearance of the organic EL device Ap3.

(6) In the above embodiment, only the transition between the states of FIGS. 1 and 6B, that is, the rotation of the organic EL panel 100 is performed, and the image display switching between two-dimensional and three-dimensional is automatically performed. However, the present invention is not limited to such a form.
For example, the switching may be performed manually. The viewer or user can, for example, transmit the intention to the apparatus side through the operation unit M1 (in this case, the operation unit M1 according to the present embodiment is a specific example of the “manual switch” in the present invention. Example).
When image display switching is performed by such a manual operation, it may not be particularly necessary to be particular about the posture of the organic EL panel 100. Therefore, if there is a command related to the manual operation, regardless of the posture. The image display switching may always be performed. Further, manual switching and automatic switching may coexist.

(7) In the above-described embodiment, the case where the organic EL device Ap1 is in the form of a personal digital assistant (PDA) in terms of appearance as a whole is described. The invention is not limited to this. The “light emitting device” according to the present invention may take various specific forms as described below.

(7-1) FIG. 12 is a perspective view showing the configuration of a mobile personal computer. The personal computer 2000 includes an organic EL panel 100 that displays various images, and a main body 2010 on which a power switch 2001 and a keyboard 2002 are installed.
(7-2) FIG. 13 is a perspective view showing a configuration of a mobile phone. The cellular phone 3000 includes a plurality of operation buttons 3001, scroll buttons 3002, and an organic EL panel 100 that displays various images. By operating the scroll button 3002, the screen displayed on the organic EL panel 100 is scrolled.
In the case of FIG. 12 and FIG. 13 described above, the organic EL panel 100 is reversed upside down according to the thick line arrows shown in each figure. 12 and 13, the posture of the organic EL panel 100 is changed by such a rotational movement.

(7-3) FIG. 14 is a perspective view showing a configuration of a portable information terminal as a specific example different from the above embodiment. The portable information terminal 4000 includes a plurality of operation buttons 4001, a power switch 4002, and an organic EL panel 100 that displays various images. When the power switch 4002 is operated, various information such as an address book and a schedule book are displayed on the organic EL panel 100. In the case of FIG. 14, the organic EL panel 100 rotates according to the arrow shown in the figure with the one-dot chain line shown in the figure as an axis (see the broken line in the figure). In FIG. 14, the posture of the organic EL panel 100 is changed by such a rotational movement.

(7-4) FIG. 15 is a diagram illustrating a configuration of the car navigation apparatus. The car navigation device 5000 includes a plurality of operation buttons 5001 and an organic EL panel 100 that displays various images. When the operation button 5001 is operated, various information (hereinafter referred to as “operation related information”) such as a road map including route information, traffic jam information, or recommended sightseeing spots is displayed on the organic EL panel 100. In the case of FIG. 15, the organic EL panel 100 rotates (reverses the front and back) according to the thick arrow shown in FIG. In FIG. 15, the posture of the organic EL panel 100 is changed by such a rotational movement.
In such a car navigation apparatus 5000, the organic EL panel 100 is not used for displaying a stereoscopic image, but is used for displaying different images for each person sitting in the driver seat 5100 and the passenger seat 5200. Is possible. That is, the organic EL panel 100 or the car navigation device 5000 is operated as a “two-image display device”. As used herein, the two-image display device refers to directions DR and DA so that light traveling in the direction DR in FIG. 4 forms an image on the driver's seat 5100 side, and light traveling in the direction DA forms an image on the passenger seat side. Or the shape of the single lens 42 is adjusted.
In this case, the content of the image displayed for the driver sitting in the driver's seat 5100 and the content of the image displayed for the passenger sitting in the passenger seat 5200 can be made different. Preferably (especially during operation of the car), the driver seat 5100 has an image related to the operation-related information, and the passenger seat 5200 has a moving image based on a DVD, a video tape, a television image signal, or the like. Etc. may be displayed respectively.

  The “light emitting device” according to the present invention includes a digital still camera, a television, a video camera, a pager, an electronic notebook, an electronic paper, a calculator, a word processor, a workstation, a videophone, a POS in addition to the devices illustrated in FIGS. Various specific modes such as a terminal, a printer, a scanner, a copier, a video player, and a touch panel can be taken.

1 is a perspective view of an organic EL device according to an embodiment of the present invention. FIG. 2 is a cross-sectional view taken along line AA ′ of FIG. 1. It is a disassembled perspective view which shows the structure of the organic electroluminescent panel shown in FIG. It is sectional drawing which shows the internal structure of the organic electroluminescent panel shown in FIG. It is a block diagram which shows the internal structure of the display surface switching circuit shown in FIG. It is a figure which shows the mode of the attitude | position change of the organic electroluminescent panel shown in FIG. 1, Comprising: (A) is the state in which the organic electroluminescent panel was opened to some extent from the state of FIG. 1, (B) is the state opened completely. Represents. It is explanatory drawing which shows the order of the arrangement | sequence of a data line in a three-dimensional image display state. It is explanatory drawing which shows the order of the arrangement | sequence of a data line in a two-dimensional image display state. FIG. 5 is a cross-sectional view showing the same concept as in FIG. 4 and showing a structure including a parallax barrier instead of the lenticular lens in FIG. FIG. 2 is a perspective view of an organic EL device according to an aspect different from FIG. 1. FIG. 11 is a perspective view of an organic EL device according to an aspect different from FIGS. 1 and 10, in which (A) is a normal state, (B) is a state in which the state of (A) is reversed, and (C) is (A). The state in which the cover member is slid from the state shown in FIG. Note that (D) is a perspective view of only the cover member. It is a perspective view which shows the light-emitting device (personal computer) which concerns on an aspect different from FIG.1, FIG10 and FIG.11. It is a perspective view which shows the light-emitting device (cellular phone) which concerns on a different aspect from FIG.1 and FIG.10 thru | or FIG. It is a perspective view which shows the light-emitting device (portable information terminal) which concerns on a different aspect from FIG.1 and FIG.10 thru | or FIG. It is a figure which shows the light-emitting device (car navigation apparatus) which concerns on a different aspect from FIG.1 and FIG.10 thru | or FIG.

Explanation of symbols

Ap1, Ap2, Ap3 ... Organic EL device, M0 ... Housing, M1 ... Operation part, M2, M20 ... Hinge part, M3 ... Storage space, M4 ... Cover member, 70, 71 ... Light absorption Member: 100 ... Organic EL panel, 100A ... Hook hole, 110 ... 2D display surface, 120 ... 3D display surface, 10 ... Element substrate, 20 ... Sealing substrate, JB ... Adhesive, 40 ... ... Lenticular lens, 42 ... Single lens, 45 ... Parallax barrier, 45a ... Aperture, 8 (= 8R, 8G, 8B) ... Organic EL element, 13 ... Pixel electrode, 18 (= 18R, 18G) , 18B)... Light emitting functional layer, 5... Counter electrode, 340... Partition, 53... Drive circuit, 54... Display surface switching circuit, 541. 3D processing circuit, 103 ... running Line drive circuit, 106 ...... data signal supply circuit, 3 ...... scanning lines, 6 ...... data line

Claims (15)

A plate-like body;
A light-emitting element that is provided inside the plate-like body and emits light toward both of the wide surfaces;
A parallax generating optical element provided corresponding to a first surface which is one wide surface of the plate-like body;
A housing physically connected to at least a part of the plate-like body and provided with a storage space having a volume capable of storing the plate-like body ;
A light absorbing member so as to face the first or second surface of the plate-like body stored in the storage space;
With
By changing the posture of the plate-like body,
The first surface is directed in a predetermined direction so that the light that has passed through the parallax generating optical element travels in the predetermined direction, or
The second surface, which is the back surface of the first surface, is directed in the predetermined direction so that light that does not pass through the parallax generation optical element travels in the predetermined direction.
A light emitting device characterized by that. There are a plurality of the light emitting elements,
With these multiple light emitting elements,
A three-dimensional image is displayed through the first surface,
A two-dimensional image is displayed through the second surface.
The light-emitting device according to claim 1. And further comprising a connecting means for rotatably connecting the plate-like body to the housing,
The change in the posture of the plate-like body is due to the rotation of the plate-like body.
The light-emitting device according to claim 1 or 2. The plate-like body includes a rectangular shape in plan view,
The connecting means includes
Including a first rotation axis that can be rotated along one side of the plate-like body and having the one side as an axis;
The change in the posture of the plate-like body is due to the rotation of the first rotation shaft.
The light-emitting device according to claim 3. The connecting means includes
A second rotating shaft that intersects with the first rotating shaft and is rotatable independently of the first rotating shaft;
The change in the posture of the plate-like body is due to the rotation of at least one of the second rotation shaft and the first rotation shaft.
The light-emitting device according to claim 4. The light absorbing member is
Ru provided on at least part of the wall which forms the housing space,
The light emitting device according to claim 1, wherein the light emitting device is a light emitting device. The housing is
Further comprising a cover member that exposes the first or second surface of the plate-like body stored in the storage space to the outside world or hides it from the outside world,
The light absorbing member is
Ru provided on the first surface or the second surface capable of facing surfaces of the cover member,
The light emitting device according to claim 1 , wherein the light emitting device is a light emitting device. The light absorbing member is
Provided to face the first surface ;
The light emitting device according to claim 1 , wherein the light emitting device is a light emitting device. There are a plurality of the light emitting elements,
In order to display an image having a predetermined content on the first or second surface, further comprising a control means for controlling the plurality of light emitting elements,
The control means is
Regardless of the change in the posture of the plate-like body, the plurality of light emitting elements are controlled to display an image having the same content on the first or second surface.
The light emitting device according to claim 1 , wherein the light emitting device is a light emitting device. The control means includes
A data signal supply circuit for supplying a data signal designating the light emission intensity to each of the plurality of light emitting elements;
A switching circuit for switching between the first data signal that is the data signal when displaying an image on the first surface and the second data signal that is the data signal when displaying an image on the second surface When,
The light emitting device according to claim 9, comprising: The switching circuit automatically performs the switching according to a change in the posture of the plate-like body.
The light-emitting device according to claim 10 . The switching circuit includes a manual switch for manual operation of a user according to the switching,
The light-emitting device according to claim 10 or 11 , The parallax generating optical element includes a lenticular lens,
The light emitting device according to claim 1 , wherein the light emitting device is a light emitting device. The parallax generating optical element includes a parallax barrier .
The light emitting device according to claim 1 , wherein the light emitting device is a light emitting device. The light emitting element includes an organic EL element ,
The light emitting device according to claim 1, wherein the light emitting device is a light emitting device.

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