JP6540657B2 - Display device - Google Patents

Description

  The disclosure of this specification relates to a display device.

  Conventionally, for example, Patent Document 1 discloses a display device for a vehicle that displays a grid-like effect image with a sense of perspective on a display screen of a liquid crystal display. The vehicle display device sensibly expresses the traveling state of the vehicle by displaying the lattice-like effect image as an animation moving from the back to the front of the display screen.

JP, 2015-71369, A

  By the way, although the effect image of Patent Document 1 is in the form of a grid having perspective, it is actually only a flat image displayed on the display screen. Therefore, in the effect display like the effect image of Patent Document 1, it is difficult to give the viewer a sufficient three-dimensional effect even if the lattice-like aspect is changed as animation.

  The present disclosure has been made in view of the above-mentioned problems, and an object thereof is to provide a display device capable of performing effect display with a three-dimensional effect.

  In order to achieve the above object, one aspect disclosed is an image display (20) for displaying an image (PI) on a display screen (21) and a transmission arranged in a display direction (SD) to which the display screen faces. And a plurality of light source portions (43) for causing light to be incident on the display plate from the end face (41e) of the display plate, and a large number of fine recesses (45, 45) formed in the display plate A transmissive display (40) for displaying on a display plate a light emitting design (LP) superimposed on an image of a display screen by reflecting light from the light source unit in the display direction by 245a, 245b, 245c,) And an image control unit (63, 74) for controlling the display of the image display, and a light source control unit (64, 73) for individually controlling the light emission of the plurality of light source units. While moving the moving image portion (Pm), the moving image portion (Pm) And there is a display control circuit that changes according to the movement of the moving image portion emission mode of a light emitting design superimposed on a portion (60), a display device including a well.

  In such a mode, the moving image portion displayed on the display screen and the light emitting design displayed on the display plate are offset from each other in the display direction in which the display screen faces. Therefore, the display in which the moving image portion and the light emission design are superimposed (hereinafter referred to as “effect display”) can be a display having a three-dimensional effect. In addition, in the effect display, as the moving image unit moves the display screen, the light emission design superimposed on the moving image unit also changes the light emission mode. As described above, the display device can perform effect display with a three-dimensional effect by dynamically changing the superimposed moving image portion and the light emission design at positions shifted from each other.

  The reference numerals in the parentheses above merely show an example of the correspondence with specific configurations in the embodiments to be described later, and do not limit the technical scope at all.

It is a front view which shows each display part of the display apparatus by 1st embodiment. It is sectional drawing which shows the mechanical structure of a display apparatus. It is a block diagram which shows the electric constitution of a display apparatus. It is a figure for demonstrating the shape, arrangement | positioning, function, etc. of the recessed part formed in the formation range of an acrylic light-guide plate, Comprising: It is a schematic diagram which exaggerates and shows a fine recessed part. It is a figure which expands and shows a part of acrylic light guide plate, Comprising: It is a schematic diagram which shows the shape and arrangement | positioning of a recessed part. It is a time chart which shows the detail of the pulse signal in the case of controlling individually lighting of each translucent display light source by pulse width modulation control of a PWM control part. It is a time chart which shows the detail of the pulse signal in the case of controlling individually lighting of each translucent display light source by pulse frequency modulation control of a duty control part. It is a figure which shows the display element displayed by opening display. It is a figure which shows the display element displayed on a display screen among the display elements displayed by the opening display shown in FIG. It is a figure which shows the display thing displayed on an acrylic light-guide plate among the display elements displayed by the opening display shown in FIG. It is a figure which shows the aspect immediately after the start of opening display. It is a figure which shows the aspect of the middle of an opening display. It is a figure which shows the final aspect of an opening display. It is a flowchart which shows the detail of the display control processing which displays an opening display. It is a figure which shows an example of a warning display. It is a figure which shows arrangement | positioning of the recessed part in 2nd embodiment. It is a figure which shows the cross-sectional shape of a recessed part, Comprising: It is the XVII-XVII sectional view taken on the line of FIG. It is a figure which shows the longitudinal cross-sectional shape of a recessed part, Comprising: It is the XVIII-XVIII sectional view taken on the line of FIG. It is a figure which shows the aspect immediately after the start of opening display.

  Hereinafter, a plurality of embodiments of the present disclosure will be described based on the drawings. In addition, the overlapping description may be abbreviate | omitted by attaching the same code | symbol to the corresponding component in each embodiment. When only a part of the configuration is described in each embodiment, the configuration of the other example described above can be applied to the other part of the configuration. Further, not only the combination of the configurations explicitly described in the description of the respective embodiments but also the configurations of the plurality of embodiments can be partially combined with each other even if the combination is not specified unless any trouble occurs in the combination. And the combination which has not been specified between the configurations described in a plurality of embodiments and modifications is also disclosed by the following description.

(First embodiment)
The display device 100 according to the first embodiment of the present disclosure shown in FIG. 1 is mounted on a vehicle and functions as a combination meter for the vehicle. The display device 100 is attached to an instrument panel or the like in a posture in which the display area 10a on the front side shown in FIG. 1 is directed to the driver's seat. The display device 100 displays various information on the vehicle in the display area 10a.

  In the display area 10a, a pointer display unit such as a speedometer display unit 11 and a tachometer display unit 12, a multi display unit 13, a light emission design display unit 14 and the like are provided. The speedometer display unit 11 and the tachometer display unit 12 display information by means of the rotating hands 33. The multi display unit 13 is located at the center of the display area 10 a and displays information by various images PI mainly drawn on the display screen 21 of the liquid crystal display 20. The light emission design display unit 14 displays the light emission design LP superimposed on the image PI of the display screen 21 of the multi display unit 13.

  As shown in FIGS. 1 and 2, the display device 100 includes a liquid crystal display 20, two pointer displays 30, a transmission display 40, a housing 50, a circuit board 57, and the like.

  The liquid crystal display 20 is a large thin film transistor (TFT) liquid crystal display held at the center of the housing 50. The liquid crystal display 20 is formed in a rectangular flat plate shape as a whole by overlapping the backlight 23 and the image display panel 24 and the like. In the following description, the direction along which the display screen 21 of the liquid crystal display 20 is directed and which is along the virtual axis substantially perpendicular to the display screen 21 is taken as the display direction SD. Further, a direction opposite to the display direction SD is taken as a back direction BD. Furthermore, a direction that is a longitudinal direction of the display screen 21 and is along the width direction of the vehicle is taken as a horizontal direction HD.

  The backlight 23 is configured to include a liquid crystal light source 25 (see FIG. 3) and a diffusion plate. The backlight 23 causes the light emitted from the liquid crystal light source 25 to be diffused by the diffusion plate and to be incident on the back side of the image display panel 24. The backlight 23 illuminates the image display panel 24. The image display panel 24 forms a display screen 21. A large number of pixels are two-dimensionally arranged on the display screen 21. The image display panel 24 performs color display of various images PI on the display screen 21 by controlling the transmittance of light of sub-pixels such as red, green and blue provided in each pixel.

  The two pointer displays 30 are disposed one on each side of the liquid crystal display 20 in the horizontal direction HD. Each pointer display 30 includes a pointer drive motor 31, a pointer display light source 32, a pointer 33, a dial 34, and the like. The pointer drive motor 31 and the pointer display light source 32 are electrically connected to a display control circuit 60 (see also FIG. 3) described later. The pointer drive motor 31 rotates the pointer 33 based on the control signal output from the display control circuit 60. The pointer display light source 32 emits light for emitting a design of a scale, numbers, characters, icons and the like formed on the dial 34 and the pointer 33 based on a control signal output from the display control circuit 60.

  The transmissive display 40 is configured of an acrylic light guide plate 41, a plurality of light transmitting display light sources 43, and the like. The transmissive display 40 has a light emission design display unit 14 provided on the acrylic light guide plate 41 with a light emission design LP that is three-dimensionally combined with the image PI of the display screen 21 by illumination light emitted from each light transmission display light source 43. Display on.

  The acrylic light guide plate 41 is formed in a rectangular flat plate shape by a colorless and transparent resin material such as an acrylic resin. The acrylic light guide plate 41 has high light transmittance in the plate thickness direction. The acrylic light guide plate 41 is located in the display direction SD of the display screen 21. The longitudinal direction of the acrylic light guide plate 41 is along the horizontal direction HD of the display device 100. The acrylic light guide plate 41 is held by the housing 50 at a position about 10 to 15 mm away from the display screen 21 in the display direction SD with the posture in which the planar direction is aligned with the display screen 21. The acrylic light guide plate 41 entirely covers the display screen 21 of the multi display unit 13 and the pointers 33 of the pointer display units. The acrylic light guide plate 41 is provided with an incidence end face 41 e and a plurality of formation areas 42 as shown in FIGS. 4 and 5.

  The incident end face 41 e is formed on the lower end face of the acrylic light guide plate 41 facing downward in the posture installed in the vehicle. The incident end face 41 e has a shape extending in a strip shape along the horizontal direction HD, and is formed in a planar shape. The incident end face 41 e is opposed to the light source substrate 44 on which the plurality of translucent display light sources 43 are mounted. The incident end face 41 e causes the light emitted from the plurality of translucent display light sources 43 to enter into the inside of the acrylic light guide plate 41.

  The formation range 42 is formed on the back surface 41 b of the both surfaces of the acrylic light guide plate 41 facing the back surface direction BD. Each formation range 42 is defined in a shape extending linearly from the incident end face 41 e on which the light of the translucent display light source 43 is incident to the center of the acrylic light guide plate 41. That is, among the plurality of formation areas 42, the formation area 42 located in the middle of the incident end face 41e extends in a direction substantially orthogonal to the incident end face 41e. On the other hand, as the formation range 42 is farther from the center of the incident end face 41e, it extends in a posture inclined toward the center with respect to the incident end face 41e (see FIG. 10). The formation areas 42 are formed spaced apart from each other in the horizontal direction HD, which is the extension direction of the incident end face 41 e. The distance between the two adjacent formation areas 42 is, for example, several mm, and is arranged narrower than the distance between the two adjacent light transmission display light sources 43.

  A large number of minute recesses 45 are provided on the back surface 41 b of the acrylic light guide plate 41 belonging to each formation range 42. Each recess 45 is recessed in a concave shape from the back surface 41 b of the acrylic light guide plate 41 by microfabrication. The plurality of concave portions 45 are arranged in a two-dimensional manner at a predetermined and constant density, spaced apart from each other in the longitudinal direction and the lateral direction of the acrylic light guide plate 41 in each formation area 42. Specifically, the distance between the adjacent concave portions 45 is set in the range of 100 to 200 μm in the longitudinal direction (horizontal direction HD) of the acrylic light guide plate 41 and is set to 60 to 120 μm in the lateral direction of the acrylic light guide plate 41 Be done. As an example, the arrangement pitch of the concave portions 45 in the first embodiment is set to 150 μm in the longitudinal direction and to 75 μm in the lateral direction.

  The recess 45 is a V-shaped groove extending in the longitudinal direction of the acrylic light guide plate 41. Each recessed part 45 is made into the size which is hard to be visually recognized from the driver who sits down to a driver's seat, or the processing shape which is not minded by the driver. As an example, the length of one recess 45 is set to about 75 μm. Moreover, the depth dimension of the recessed part 45 on the basis of the back surface 41b is set to about 5-20 micrometers. Of the two slopes constituting the recess 45, one closer to the incidence end face 41e is an opposing slope 45r in a posture facing the incidence end face 41e. The opposing slope 45r has a curved shape that is convex toward the inside of the acrylic light guide plate 41, and is formed in a partial cylindrical surface having a radius of curvature of about 100 μm.

  When the light transmitting display light source 43 is in the extinguished state, the large number of recesses 45 formed in each formation range 42 are substantially invisible from the driver. In contrast, when the translucent display light source 43 is in the lighting state, each forming range 42 directs the light incident on the acrylic light guide plate 41 from the incident end face 41 e to the display direction SD by the opposing slopes 45 r of the many concave portions 45. To reflect. As a result, on the light emission design display unit 14 provided on the acrylic light guide plate 41, the light emission design LP having the same shape as the individual formation range 42 is displayed superimposed on the image PI (see FIG. 1) of the display screen 21. . According to the arrangement of the concave portions 45 having a predetermined density, the individual formation areas 42 can emit light uniformly. The plurality of formation areas 42 form an irradiation display that reminds the driver of the image of the ground as a whole, as described later (see FIG. 10).

  The translucent display light source 43 is a light emitting element such as a light emitting diode capable of emitting multiple colors. The translucent display light source 43 is a light source that illuminates the acrylic light guide plate 41 with an edge light. The translucent display light source 43 emits light by the input of a pulse-like drive signal. The translucent display light source 43 causes light to enter the acrylic light guide plate 41 from the incident end face 41 e. The light transmitting display light sources 43 are mounted on the mounting surface of the light source substrate 44 at an interval. The translucent display light sources 43 are arranged at equal intervals along the incident end face 41 e of the acrylic light guide plate 41. The distance between two adjacent light transmission display light sources 43 is set to, for example, about 10 to 15 mm, and is provided wider than the distance between two adjacent formation areas 42 (see FIG. 1).

  The housing 50 shown in FIG. 1 and FIG. 2 forms the appearance of the display device 100, and by accommodating the components of the display device 100, these components are protected from dust, dirt, etc. in the atmosphere. There is. The housing 50 is configured of a smoked panel 51 and a lower cover 52, and a body panel 53 and the like on which these are assembled.

  The smoked panel 51 is formed of a permeable resin material colored in dark color such as smoke. As an example, the light transmittance of the smoke panel 51 is set to about 30%. The smoke panel 51 is positioned in the display direction SD of the liquid crystal display 20 and the transmission display 40, and is attached to the main body panel 53 from the front side. The smoked panel 51 whose transmittance is set low makes it even more difficult for the driver to see the fine recesses 45 (see FIG. 4) formed in the acrylic light guide plate 41.

  The lower cover 52 is formed of, for example, a black resin material having a light shielding property. The lower cover 52 is located in the back direction BD of the circuit board 57 and attached to the main body panel 53 from the back side.

  The main body panel 53 is formed of a light shielding resin material or the like. The main body panel 53 holds the liquid crystal display 20, the transmission display 40, the circuit board 57, and the like. In the main body panel 53, a facing portion 54, a plate window 55, and the like are formed. The facing section 54 is located on both sides of the display screen 21 in the horizontal direction HD, and divides the speedometer display section 11, the tachometer display section 12, and the multi-display section 13 on the display. The plate window 55 defines the outer edge of the display area 10a.

  The circuit board 57 is disposed in the back direction BD of the liquid crystal display 20. The circuit board 57 is held by the housing 50. The circuit board 57 is provided with a power supply circuit 69, a meter drive driver 71, a meter illumination driver 72, a plate illumination driver 73, a liquid crystal image driver 74, a liquid crystal illumination driver 75, a display control circuit 60 and the like shown in FIG. . Hereinafter, these details will be described based on FIG. 3 and FIG.

  The power supply circuit 69 is a linear or switching DC-DC converter. The power supply circuit 69 is connected to a battery power supply mounted on the vehicle. The power supply circuit 69 transforms the DC voltage supplied from the battery power supply (+ B) into an output voltage of, for example, about 5 volts, and stably supplies the output voltage to the display control circuit 60 and the drivers 71 to 75.

  The meter drive driver 71 outputs a control signal based on a command from the display control circuit 60 to each pointer drive motor 31. The meter drive driver 71 controls the indicated position of each pointer 33 by driving each pointer drive motor 31. The meter illumination driver 72 outputs a control signal based on a command from the display control circuit 60 to the pointer display light source 32. The meter illumination driver 72 controls the light emission of the pointer display light source 32 to cause each design of the dial 34 and the pointer 33 to emit light.

  The plate illumination driver 73 outputs a pulse signal based on a command from the display control circuit 60 to the light transmission display light source 43. The plate illumination driver 73 changes the light emission mode of the light emission design LP to be light-emitting and displayed according to the image PI of the display screen 21 by individually controlling the pulse signals applied to the respective light transmission display light sources 43.

  The liquid crystal image driver 74 outputs a video signal based on an instruction from the display control circuit 60 to the image display panel 24. The liquid crystal illumination driver 75 outputs a luminance signal based on the command from the display control circuit 60 to the liquid crystal light source 25. The liquid crystal image driver 74 and the liquid crystal illumination driver 75 control the display mode of the image PI displayed on the display screen 21.

  The display control circuit 60 is an electronic circuit that controls the display of the display area 10a. The display control circuit 60 is communicably connected to the communication bus of the in-vehicle network 110 mounted on the vehicle. The display control circuit 60 mainly includes a microcontroller having at least one processor, a RAM, a storage unit 67, and the like. The storage unit 67 stores a display control program necessary for displaying information, and a large number of image data for drawing various images PI. The display control circuit 60 causes the processor to execute the display control program stored in the storage unit 67 to execute functions of the information acquisition unit 61, the pointer display circuit unit 62, the image control circuit unit 63, the light emission control circuit unit 64, and the like. Build a block

  The information acquisition unit 61 acquires various state information indicating the state of the vehicle from the in-vehicle network 110 or the like. The state information includes start information indicating start of the vehicle. Specifically, the start information is an on-vehicle initial mode signal such as a traveling speed, an engine rotational speed, a remaining amount of fuel, and various temperatures. In addition, the state information includes abnormality information indicating an abnormality in a specific part of the vehicle. The information acquisition unit 61 continuously acquires state information during startup of the vehicle.

  The pointer display circuit unit 62 cooperates with the meter drive driver 71 and the meter illumination driver 72 to realize the pointer display by the pointer display 30. The pointer display circuit unit 62 controls the rotation angle of the pointer 33 by supplying a command corresponding to each information of the traveling speed and the engine rotational speed acquired by the information acquiring unit 61 to the meter drive driver 71.

  The image control circuit unit 63 controls the display of the image PI by the liquid crystal display 20 in cooperation with the liquid crystal image driver 74 and the liquid crystal illumination driver 75. The light emission control circuit unit 64 cooperates with the plate illumination driver 73 to individually control the light emission of the plurality of translucent display light sources 43. The light emission control circuit unit 64 causes the light emission design display unit 14 to display the light emission design LP representing the flow operation due to the change of the light and dark by controlling to shift the rising timings of the pulse signals for driving the individual translucent display light sources 43 to each other See Figure 12). The image control circuit unit 63 and the light emission control circuit unit 64 display a three-dimensional display design on the display area 10 a by coordinating the change of the aspect of the image PI and the light emission design LP.

  The light emission control circuit unit 64 includes a PWM control unit 65 and a duty control unit 66. The PWM control unit 65 and the duty control unit 66 adjust the light emission luminance of each translucent display light source 43 by increasing or decreasing the effective value of the current applied to each of the translucent display light sources 43 by controlling the pulse signal. The light emission control circuit unit 64 changes the light emission mode of the light emission design LP by switching of each control by the PWM control unit 65 and the duty control unit 66 or a combination of each control. Based on the switching command generated by at least one of the PWM control unit 65 and the duty control unit 66, a pulse signal is applied from the plate illumination driver 73 to each of the translucent display light sources 43.

  The PWM control unit 65 changes the time ratio between the on state and the off state of the current in a pulse signal of a predetermined cycle, and controls the luminance of each of the translucent display light sources 43. In such pulse width modulation control, the pulse width for turning on the current becomes wider, and the light emission luminance of the light transmitting display light source 43 becomes higher as the time ratio for turning on the current per unit cycle becomes higher (see FIG. 6).

  The duty control unit 66 controls the luminance of each of the translucent display light sources 43 by changing the length of the off time with the on time for which the current is in the on state to be a fixed time. In such pulse frequency modulation control, the off time of the current is shortened, and the higher the frequency of the pulse signal is modulated, the higher the light emission luminance of the translucent display light source 43 (see FIG. 7).

  Next, the details of the opening display displayed on the display device 100 described so far will be described below. The opening display is one of the effect display obtained by superimposing the light emission design LP on the image PI. In the opening display, each display element shown in FIG. 8 is displayed by superimposing the image PI of the display screen 21 shown in FIG. 9 and the light emission design LP of the light emission design display unit 14 shown in FIG. Hereinafter, the details of the image PI and the light emission design LP displayed in the opening display will be described based on FIGS. 8 to 10 with reference to FIGS. 1 and 3.

  In the opening display, a status image portion Ps, a vehicle model Mv, a road surface design Dr, and the like are displayed. The status image portion Ps is an image portion for notifying the status information of the vehicle, etc. by combining a message of characters and a predetermined icon or the like. The status image portion Ps is displayed in a range not overlapping with the light emission design LP in the display screen 21, specifically, in an area above the center of the display screen 21 in the vertical direction.

  The vehicle model Mv is drawn in a form based on the appearance of the vehicle on which the display device 100 is mounted. The vehicle model Mv is one of the moving image portions Pm moving on the display screen 21 in the opening display. The vehicle model Mv is displayed at the center of the display screen 21 in the vertical direction. The longitudinal direction of the vehicle model Mv is along the horizontal direction HD. As described later, the vehicle model Mv moves on the display screen 21 along the horizontal direction HD. The upper edge portion of the light emitting design LP is superimposed on the lower edge portion of the vehicle model Mv.

  The road surface design Dr is three-dimensionally displayed by superimposing the light emission design LP of the acrylic light guide plate 41 and the background image portion Pb on the display screen 21. The light-emitting design LP has a large number of vertically-striped displays extending in the vertical direction according to the shapes of the formation areas 42 described above. Since the light incident on the incident end face 41e (see FIG. 4) is weakened by attenuation and reflection as it goes upward, the light-emitting design LP becomes a gradation-like light emission aspect in which the luminance decreases as going upward.

  The background image portion Pb is a region below the center of the display screen 21 in the vertical direction, and is displayed in a range overlapping the light emission design LP. The background image portion Pb is a horizontally striped image portion formed by combining a plurality of strip-shaped designs extending along the horizontal direction HD. By superimposing the light emitting design LP in the vertical stripe shape on the background image portion Pb in such a horizontal stripe shape, the road surface design Dr becomes a lattice-like display mode that recalls the ground on which the vehicle model Mv is placed.

  Next, details of the display mode dynamically changing in the opening display will be described in order based on FIGS. 11 to 13 with reference to FIGS. 1 and 3.

  As shown in FIG. 11, when the vehicle is activated, the display of the status image portion Ps on the display screen 21 is started, and the vehicle model Mv which is the moving image portion Pm is displayed from the right edge of the display screen 21. Slide into 21 The vehicle model Mv starts moving in the left direction from the right edge of the display screen 21 toward the center. The light emission mode of the light emission design LP changes in accordance with the movement of the vehicle model Mv.

  Specifically, the light emission design LP includes a bright region Ba and a dark region Sa, which have different light emission luminances. The bright region Ba is a region where the display brightness is higher than that of the dark region Sa. The coordinated control of the control circuit units 63 and 64 for synchronizing the change of the light emission aspect of the light emission design LP and the change of the display aspect of the background image portion Pb makes the bright area Ba and the dark area Sa match the movement of the vehicle model Mv. Changes in shape and position are realized.

  In the initial stage of the opening display, the bright area Ba and the dark area Sa move in the same direction as the vehicle model Mv in accordance with the movement of the vehicle model Mv. Specifically, each control circuit unit 63, 64 performs such an effect that the dark area Sa displayed in front of the vehicle model Mv moves in the left direction together with the vehicle model Mv. For such an effect, the light emission control circuit unit 64 and the plate illumination driver 73 perform control to change the light emission state of the translucent display light source 43 in order from right to left (see the arrow in FIG. 11). Thus, the movement of the vehicle model Mv is emphasized.

  As shown in FIG. 12, when the vehicle model Mv moves to the center of the multi display 13, the bright area Ba and the dark area Sa are alternately displayed in the horizontal direction HD, and start moving to the right. At this time, the light emission design LP expresses an operation of flowing from the front to the rear of the vehicle model Mv by the alternate lighting and brightness change of the adjacent light transmission display light source 43 (see FIGS. 6 and 7) (see arrows in FIG. 12). ). The background image portion Pb is also changed to an image form that flows backward, in accordance with the change of the form of the light emission design LP. The road surface design Dr can be made to appear as if the vehicle model Mv is traveling by the light emission design LP and the background image portion Pb described above.

  Then, on the final screen of the opening display shown in FIG. 13, the display mode is such that the vehicle model Mv is stopped at the center of the multi display unit 13. An afterimage portion Mr may be displayed on the right side behind the vehicle model Mv. At this stage, since all the light transmitting display light sources 43 are turned on with uniform brightness, the dark area Sa (see FIG. 12) disappears, and the light emission design LP is all the bright area Ba. Thus, the opening display is finished.

  The details of the display control process for performing the above-described opening display will be described based on FIG. The display control process is started by the display control circuit 60 based on the start of the power supply from the power supply circuit 69.

  At S101, an on-vehicle initial mode signal is received as start information indicating start of the vehicle, and the process proceeds to S102. Acquisition of various state information in the vehicle is started by S101. In S102, image data such as the vehicle model Mv, the background image portion Pb, and the status image portion Ps are read, and the process proceeds to S103. In S103, based on the image data read in S102, display processing for displaying the vehicle model Mv, the background image portion Pb, the status image portion Ps, etc. on the display screen 21 is started, and the process proceeds to S104. In S104, the display processing of the light emission design LP to be superimposed and synthesized with the image PI on the display screen 21 is started, and the display processing is ended. When the opening display by the above processing ends, the display of the display area 10a is switched to the display at the time of normal traveling.

  Here, a case where, for example, abnormality information indicating an abnormality of a specific part of a vehicle is acquired in S101 of the above display control processing will be described. When the abnormality information is acquired in S101, the display device 100 switches the display from the opening display to the warning display shown in FIG. In the warning display, the driver is notified of the specific location where the abnormality is detected, using the vehicle model Mv.

  Specifically, in the warning display, a position corresponding to a specific location in the vehicle model Mv is indicated by a partial formation range 42. The light emission control circuit unit 64 (refer to FIG. 3) is a mode in which the formation range 42 of the part of the plurality of formation ranges 42 is different from the other formation ranges 42 by the light emission control of the specific translucent display light source 43 Light up with. For example, a part of the formation area 42 is displayed in a blinking manner with a light emission color (for example, red) different from that of the other formation areas. As one example, when a drop in the air pressure of the left front wheel is detected, as shown in FIG. 15, the formation range 42 connected to the left front wheel of the vehicle model Mv is displayed blinking in a warning color (see the broken line in FIG. 15). In the warning display, a decrease in the remaining amount of fuel and the remaining battery, failure of each part, and the like can be notified.

  In the first embodiment described above, the moving image portion Pm of the vehicle model Mv or the like displayed on the display screen 21 and the light emission design LP displayed on the acrylic light guide plate 41 are offset from each other in the display direction SD. doing. Therefore, the effect display such as the opening display in which the moving image portion Pm and the light emission design LP are superimposed may be a display having a three-dimensional effect. In addition, in the opening display, as the moving image portion Pm moves on the display screen 21, the light emission design LP superimposed on the moving image portion Pm also changes the light emission mode. Thus, the display device 100 can perform effect display with a three-dimensional effect by dynamically changing the moving image portion Pm and the light emission design LP at positions shifted from each other.

  In addition, in the opening display of the first embodiment, in accordance with the movement of the vehicle model Mv, the bright area Ba and the dark area Sa of the road surface design Dr including the light emission design LP move. Particularly, in the opening display of the first embodiment, the dark area Sa also moves in the same direction as the moving direction of the vehicle model Mv. The movement of the dark area Sa further emphasizes the movement of the vehicle model Mv. As a result, the rendering effect as if the vehicle model Mv is traveling is further enhanced.

  In the first embodiment, the background image portion Pb displayed in a range overlapping the light emission design LP in the display screen 21 changes the display mode in accordance with the change in the light emission mode of the light emission design LP. As a result, the stereoscopic effect of the road surface design Dr in which the light emission design LP is superimposed on the background image portion Pb is further emphasized by the dynamic change of the coordinated background image portion Pb and the light emission design LP.

  Furthermore, the background image portion Pb in the first embodiment is a horizontally striped image portion that is superimposed on the vertically striped light emission design LP to form a grid-shaped road surface design Dr. According to such a grid-like display, the road surface design Dr is a display mode that is easily recalled by the driver as the road surface on which the vehicle model Mv is placed.

  In addition, each formation range 42 in the first embodiment has a shape that linearly extends from the incident end face 41 e toward the center of the acrylic light guide plate 41. Therefore, the light incident from the incident end face 41e gradually becomes weaker as it is separated from the incident end face 41e, and the light emission design LP has a gradation-like light emission mode in which the luminance decreases as going upward. According to the above, the light-emitting design LP is a display with a sense of depth, and the stereoscopic effect of the display of the display device 100 can be further emphasized.

  Furthermore, in the first embodiment, the distance between the two formation areas 42 is smaller than the distance between the two translucent display light sources 43. As described above, by setting the interval of the formation area 42 exhibiting a linear shape densely, the light emission design LP becomes a display mode that is easily recognized by the driver as a flat plane with a depth, and contributes to the creation of a three-dimensional effect of the opening display. It can.

  In addition, in the first embodiment, when status information indicating an abnormality at a specific part is acquired by the information acquisition unit 61, a warning display is presented. As in this warning display, the display device 100 can easily understand the abnormal part of the vehicle by indicating the abnormal part of the vehicle model Mv by making the part formation area 42 emit light in a mode different from the other formation areas 42. Can be notified.

  In the first embodiment, the road surface design Dr corresponds to the "display design", the liquid crystal display 20 corresponds to the "image display", the acrylic light guide plate 41 corresponds to the "display plate", and the incident end face 41e. Corresponds to the “end surface”, and the light transmitting display light source 43 corresponds to the “light source unit”. The image control circuit unit 63 and the liquid crystal image driver 74 correspond to an "image control unit", and the light emission control circuit unit 64 and the plate illumination driver 73 correspond to a "light source control unit".

Second Embodiment
The second embodiment of the present disclosure shown in FIGS. 16 to 19 is a modification of the first embodiment. As shown in FIGS. 16 to 18, in the second embodiment, a plurality of types of concave portions 245 a to 245 c having different stretching directions are mixed in the formation range 242. The recesses 245 a to 245 c are arranged in a random order in the formation area 242. In addition, the shape of each recessed part 245a-245c is mutually substantially identical. In addition, the arrangement pitch of each of the recesses 245a to 245c is set to the same value as that of the first embodiment.

  A virtual reference line RLa defining the direction of the recess 245a is along the horizontal direction HD. A virtual reference line RLb which defines the direction of the recess 245b is set at an angle of +30 degrees with respect to the reference line RLa. Further, a virtual reference line RLc that defines the direction of the recess 245c is set at an angle of -30 degrees with respect to the reference line RLa. Each recessed part 245a-245c random arrangement | positioning can be designed by, for example, allocating three types of direction based on the pseudorandom number produced | generated by the computer etc. FIG. In addition, two types may be sufficient as the direction of a recessed part, or four or more types may be sufficient as it.

  In the opening display of the second embodiment shown in FIG. 19, lighting control for moving the translucent display light source 43 in the lighting state rightward from the timing when the vehicle model Mv slides into the display screen 21 immediately after the start of the vehicle To be implemented. As described above, the display positions of the bright area Ba and the dark area Sa are moved in the direction opposite to the moving direction of the vehicle model Mv. As a result, the bright area Ba and the dark area Sa represent the image of the road surface flowing to the rear of the vehicle model Mv by the movement to the right.

  Also in the second embodiment described so far, the same effects as in the first embodiment can be obtained, and effect display with a three-dimensional effect can be realized by dynamic changes of the vehicle model Mv and the light emission design LP. In addition, in the second embodiment, by the display of the road surface design Dr in which the bright area Ba and the dark area Sa flow toward the vehicle model Mv, the opening display produces a feeling of running like the vehicle model Mv is traveling. it can.

(Other embodiments)
As mentioned above, although a plurality of embodiments by this indication were described, the present disclosure is not interpreted by limiting to the above-mentioned embodiment, and is applied to various embodiments and combination within the range which does not deviate from the gist of this indication. can do.

  In the said embodiment, the example which changes the display position of a bright area | region and a dark area | region was shown as a change of the light emission aspect of the light emission design. However, the change of the light emission aspect of the light emission design is not limited to the change of the brightness (bright and dark) as described above, but may be the change of the hue and the light and shade of the light emission color. Specifically, the movement of the moving image unit such as a vehicle model may be emphasized by using the positional change of the area having different luminescent color or the positional change of the area having different gradation. Further, the direction of movement represented by the light emitting design is not limited to the moving direction of the moving image portion and the opposite direction. For example, the light emission design may display a radial movement centering on the moving image part, or may display a movement such as an up and down direction which is not related to the moving direction of the moving image part. Furthermore, the moving image part is not limited to the vehicle model.

  In the above-described embodiment, a vertically striped light emission design that is combined with the background image portion to form a lattice is displayed on the light emission design display portion. However, the form of the light emission design, that is, the shape, the arrangement, the number, and the like of the formation range can be appropriately changed. In addition, the translucent display light source may be provided on both sides of the acrylic light guide plate in the horizontal direction HD, or on the upper side of the acrylic light guide plate, or the like. According to the arrangement of such a translucent display light source, the light emission design display unit can display a light emission design with high brightness at any place.

  The liquid crystal display according to the above embodiment has a horizontally long rectangular shape. However, the shape of the display screen can be changed as appropriate. For example, the liquid crystal display may have a configuration using a non-rectangular display panel. Furthermore, the display screen may have a curved shape. In addition, as an image display for displaying an image, a configuration different from a liquid crystal display such as an organic EL (Electroluminescence) display may be adopted. Furthermore, the liquid crystal display may not be defined at the center of the display area. In addition, the entire display area may be formed by a liquid crystal display, and the pointer display may be omitted.

  In the above embodiment, the opening display is illustrated as the effect display in which the moving image portion and the light emission design are combined, but the effect display is not limited to the opening display. In addition, the configuration corresponding to the display control circuit of the above embodiment may be realized by software and hardware different from the above, or a combination thereof. Further, as a storage unit of the display control circuit, various non-transitory tangible storage media such as a flash memory or a hard disk drive can be adopted.

  Although the above-mentioned embodiment explained the example which applied the characterizing portion of this indication to the display carried in vehicles, the display which can apply the characterizing portion of this indication is the above-mentioned display which functions as a combination meter It is not limited to the device. For example, the features of the present disclosure can be applied to a display device different from a combination meter such as a navigation device mounted on a vehicle. Furthermore, the characteristic portion of the present disclosure is applied to a display different from a vehicle, for example, a display as an instrument mounted on an aircraft or a ship, and a display that doubles as a control panel for industrial machines and home appliances. It is possible.

Ba bright area, Sa dark area, PI image, Pm moving image area, Mv vehicle model, Pb background image area, LP light emission design, Dr road surface design (display design), SD display direction, 20 liquid crystal display (image display) , 21 display screen, 40 transmission indicator, 41 acrylic light guide plate (display plate), 41 e incident end face (end face), 42, 242 formation range, 43 light transmission display light source (light source part), 45, 245 a to 245 c recess, 60 Display control circuit, 61 information acquisition unit, 63 image control circuit unit (image control unit), 64 light emission control circuit unit (light source control unit), 73 plate illumination driver (light source control unit), 74 liquid crystal image driver (image control unit) , 100 display devices

Claims (10)

An image display (20) for displaying an image (PI) on the display screen (21);
A transmissive display plate (41) disposed in a display direction (SD) to which the display screen faces, and a plurality of light source units (43) for causing light to enter the display plate from an end surface (41e) of the display plate The light from the light source unit is reflected in the display direction by a large number of fine concave portions (45, 245a, 245b, 245c) formed in the display plate, thereby providing an image of the display screen. A transmissive display (40) for displaying the light emission design (LP) to be superimposed on the display plate;
An image control unit (63, 74) for controlling the display of the image display unit, and a light source control unit (64, 73) for individually controlling light emission of the plurality of light source units A display control circuit (60) for changing the light emission aspect of the light emission design superimposed on at least a part of the moving image part according to the movement of the moving image part while moving the moving image part (Pm);
A display device comprising: The light emission design includes a bright area (Ba) and a dark area (Sa) having different light emission luminances from one another.
The display device according to claim 1, wherein the light source control unit moves the display position of at least one of the bright region and the dark region in accordance with the movement of the moving image unit.   3. The display device according to claim 2, wherein the light source control unit moves the display position of at least one of the bright region and the dark region in the same direction as the moving direction of the moving image unit.   3. The display device according to claim 2, wherein the light source control unit moves the display position of at least one of the bright region and the dark region in a direction opposite to the moving direction of the moving image unit.   The image control unit further causes the background image portion (Pb) to be displayed in a range overlapping with the light emission design in the display screen, and changes the display mode of the background image portion in accordance with the change in the light emission mode of the light emission design. The display apparatus as described in any one of Claims 1-4. The display plate is provided with a plurality of formation ranges (42, 242) in which a large number of fine recesses are arranged,
The display device according to any one of claims 1 to 4, wherein each of the formation ranges has a shape that linearly extends from the end face where the light of the light source portion is incident toward the center of the display plate. . The image control unit causes the background image portion (Pb) to be displayed in a range overlapping the light emission design in the display screen, and changes the display manner of the background image portion in accordance with a change in the light emission manner of the light emission design. ,
The display device according to claim 6, wherein the background image portion is a horizontally striped image portion which is superimposed on the light emission design to form a lattice-shaped display design (Dr). The plurality of light source units are provided spaced apart from one another in the extending direction of the end surface,
The plurality of formation ranges are formed spaced apart from one another along the stretching direction,
The display device according to claim 6 or 7, wherein a distance between two adjacent formation areas is smaller than a distance between two adjacent light source parts. A display device mounted on a vehicle,
The moving image unit includes a vehicle model (Mv) in a form based on an appearance shape of the vehicle,
The display device according to any one of claims 1 to 8, wherein the light emission design is a light emission form reminiscent of the ground on which the vehicle model is placed. The information acquisition unit (61) for acquiring state information indicating the state of the vehicle, further comprising:
When the information acquisition unit acquires the state information indicating an abnormality at a specific part of the vehicle, the light emission design indicates a part indicating the position corresponding to the specific part in the vehicle model, and the other part The display device according to claim 9, wherein light is emitted in a mode different from.

Images