JP2011145349A - Display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display device which displays an image appropriately viewed by a viewer for the viewer, according to the distance from a screen to the viewer. <P>SOLUTION: The display device includes a first display part for displaying a first image; a second display part arranged nearer to the viewer side than the first display part, and transmitting the light of the first image and displaying a second image; and a lens arranged between the first display part and the second display part, and providing a virtual image of the first image for the viewer. Furthermore, the display device includes a first driving part for moving a light source device in a direction nearly perpendicular to a display panel; and a second driving part for moving the light source device in a direction nearly parallel with the display panel. By allowing the first driving part to move the light source device, a light-condensing position control part controls the distance between an optical system and the light source device. Also, the light-condensing position control part allows the second driving part to move the light source device in accordance with a position of the viewer relative to the optical system, in a direction which is substantially parallel to the display panel. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a display device.

  As a technology for visually recognizing a stereoscopic image using a transmissive display monitor and a lens, light from the right eye light source and left eye light are irradiated from the back side of the transmissive display monitor with a right eye light source and a left eye light source. A technique is known in which light from a light source is imaged on a right eye and a left eye of a viewer by a lens, respectively. For example, the following patent documents describe techniques related to stereoscopic viewing.

JP 2009-98589 A

  By the way, for a viewer who is viewing from a position away from the imaging position by the lens, light that should be given only to the right eye leaks to the left eye, or light that should be given only to the left eye May leak to the eyes. In this case, a so-called appropriate parallax cannot be given to the viewer, and the viewer may not be able to recognize the image displayed on the monitor in a three-dimensional manner. As described above, there is a problem that an appropriate image cannot be presented to the eyes of the viewer depending on the distance to the viewer.

  In order to solve the above problems, in one embodiment of the present invention, a display device is a display panel that displays an image, a light source device that emits light from the back surface to the display panel, and a display panel that transmits or transmits light. By controlling the light emission position of the light source device or the position of the optical member of the optical system according to the distance between the optical system and the optical system that collects the collected light on the eye of the viewer And a condensing position control unit for controlling the condensing position by the optical system.

  The light source device further includes a first driving unit that moves the light source device in a direction substantially perpendicular to the display panel, and the condensing position control unit moves the light source device to the first driving unit, thereby reducing the distance between the optical system and the light source device. You may control. The light source device further includes a second drive unit that moves the light source device in a direction substantially parallel to the display panel, and the light collection position control unit is configured to change the first position according to the position of the viewer in the direction substantially parallel to the display panel. You may move a light source device to 2 drive parts.

  A plurality of light source devices that can be moved separately are provided, and the condensing position control unit causes the drive unit to independently move each of the plurality of light source devices according to the distance between the optical system and each of the plurality of viewers. Thus, the distance between the optical system and each of the plurality of light source devices may be controlled. The light source device further includes a second drive unit that moves the light source device in a direction substantially parallel to the display panel, and the condensing position control unit is positioned at a position in a direction substantially parallel to the display panel of each of the plurality of viewers with respect to the optical system. Accordingly, the plurality of light source devices may be moved to the second drive unit.

  The display panel displays a right-eye image to be viewed with the viewer's right eye and a left-eye image to be viewed with the viewer's left eye, and the light source device emits light from the back surface to the display panel. A light source for the right eye that irradiates, and a light source for the left eye that irradiates the display panel with light from the back surface, and the optical system includes a light source for the right eye and a light source for the left eye that are transmitted through or transmitted through the display panel. May be condensed on each of the right and left eyes of the viewer.

  The light source device has a plurality of light source units that are different in distance from the display panel and irradiate the display panel with light from the back surface, and the light collection position control unit includes a plurality of light collection position control units according to the distance between the optical system and the viewer. The light source unit may be selected to irradiate the display panel.

  The light source device has a plurality of light source units that are substantially the same distance from the display panel and arranged in a direction substantially parallel to the display panel, and the condensing position control unit is a display panel for the viewer with respect to the optical system. The display panel may be irradiated by selecting any one of a plurality of light source units according to a position in a direction substantially parallel to the light source unit.

The display panel displays an image for the right eye that should be visually recognized by the viewer's right eye and an image for the left eye that should be visually recognized by the viewer's left eye.
A light source for the right eye that irradiates light from the back surface to the display panel; and a light source for the left eye that irradiates light from the back surface to the display panel. The light from each of the left eye light sources may be condensed on each of the right and left eyes of the viewer. The plurality of light source units receive light from a light source array in which a plurality of right eye light sources and a plurality of left eye light sources are arranged, and light from each of the plurality of right eye light sources and the plurality of left eye light sources from an incident end. And a kaleidoscope array in which a plurality of kaleidoscopes emitting from the emission end are arranged, and the emission ends of the plurality of kaleidoscopes may be arranged obliquely with respect to the display panel.

  The optical system may be provided between the display panel and the light source device. A diffusion plate may be further provided between the display panel and the light source device and diffusing light from the light source device in the vertical direction of the display panel.

  The diffuser plate may be a lenticular lens in which a plurality of lenses extending in the left-right direction of the display panel are arranged in the vertical direction. Each of the plurality of lenses may diffuse light over a predetermined region that includes the condensing point of the optical system and is substantially parallel to the display panel. The 1st lens of a plurality of lenses has the 1st directivity direction, and the 2nd lens arranged outside the 1st lens in the up-and-down direction of a diffusion plate among a plurality of lenses is The second directivity direction may be inclined to the inside of the display panel from the first directivity direction. The first lens is disposed substantially at the center in the vertical direction of the diffusion plate, the first directivity direction is a direction substantially perpendicular to the display panel, and the plurality of second lenses are the vertical direction of the diffusion plate. The lens arranged on the outer side in FIG. 5 may have a directing direction inclined more inward.

  You may further provide the illumination lens which reduces the luminance distribution of the light irradiated to a display panel from a light source device. The distance between the display panel and the illumination lens may be substantially equal to the focal length of the illumination lens.

  The display panel includes a light transmission restriction unit that restricts a light transmission amount for each area of the display panel, and the display device controls the light transmission restriction unit to thereby control the luminance distribution of light transmitted through the light transmission restriction unit. A light transmission amount control unit for reducing the above may be further provided. The light transmission amount control unit may restrict the light transmission amount for each area of the display panel by controlling the light transmission restriction unit based on a correction parameter calculated from the light distribution characteristic of the light source device. The light transmission amount control unit sequentially changes correction parameters for controlling the light transmission restriction unit while the display panel displays an image for brightness adjustment, so that the light transmission amount for each region of the display panel. The display device further includes an instruction input receiving unit that receives an instruction input from the viewer, and a correction parameter storage unit that stores a correction parameter applied at a timing indicated by the instruction input. When the display panel displays an image for viewing, the amount control unit controls the light transmission restriction unit based on the correction parameter stored in the correction parameter storage unit, thereby reducing the light for each region of the display panel. The amount of transmission may be limited.

  The above summary of the invention does not enumerate all the necessary features of the present invention, and sub-combinations of these feature groups can also be the invention.

It is a figure which shows the structural example of the display apparatus 10 which concerns on this embodiment. 3 is a diagram illustrating an example of a block configuration of a control unit 100. FIG. 3 is a diagram schematically illustrating an example of a configuration of a display system in the display device 10. FIG. It is a figure which shows typically another example of a structure of a display system. It is a figure which shows typically another example of the structure of a display system typically. It is a figure which shows typically another example of the structure of a display system typically. 5 is a diagram illustrating an example of a block configuration of a light transmission amount control unit 220. FIG. It is a figure which shows an example of the processing flow in the light transmission amount control unit. It is a figure which shows an example of the production | generation method of the image for right eyes, and the image for left eyes.

  Hereinafter, the present invention will be described through embodiments of the invention. However, the following embodiments do not limit the invention according to the scope of claims, and all combinations of features described in the embodiments are included. It is not necessarily essential for the solution of the invention.

  FIG. 1 shows a configuration example of a display device 10 according to the present embodiment. In one embodiment, the display device 10 presents a stereoscopic image to the viewer. Specifically, the display device 10 presents a right-eye image to the viewer's right eye and presents a right-eye image to the viewer's left eye, thereby providing the viewer with a stereoscopic image. Present.

  The display device 10 includes a control unit 100, a light source unit 110, and a display unit 140. The control unit 100 controls the light source unit 110 and the display unit 140 to present a stereoscopic image to the viewer. Specifically, the control unit 100 displays the right-eye image and the left-eye image on the display unit 140, and presents the right-eye image to the right eye of the viewer using light from the light source unit 110. In addition, the left eye image is presented to the left eye of the viewer.

  The control unit 100 generates a right-eye image to be given to the viewer's right eye and a left-eye image to be given to the viewer's left eye, and supplies them to the display unit 140. For example, the control unit 100 acquires one image from the outside, and generates a right-eye image and a left-eye image from the acquired image. The control unit 100 may acquire an image captured from an imaging device that captures a so-called two-dimensional image, and generate a right-eye image and a left-eye image from the image. In addition, the control unit 100 acquires three-dimensional data representing the shape of a three-dimensional object, and from the acquired three-dimensional data, the control unit 100 performs virtual 3 from the viewpoint corresponding to the right eye and the viewpoint corresponding to the left eye. An image for the right eye and an image for the left eye viewing the dimensional object may be generated by computer graphics or the like.

  In addition, the control unit 100 captures the subject from the viewpoint corresponding to the right eye and the viewpoint corresponding to the left eye, and generates the right eye image and the left eye image from the imaging device that generates the right eye image and the left eye image. An ophthalmic image may be acquired. As described above, the control unit 100 may generate data for the right eye and the image for the left eye by decoding data given from the outside such as an imaging device or a recording medium.

  The display unit 140 displays the right eye image and the left eye image supplied from the control unit 100. In the present embodiment, the display unit 140 substantially gives the right eye image to the right eye of the viewer without wearing the dedicated glasses for image separation to the viewer, and substantially adds the left eye image. To the left eye of the viewer. Specifically, the light source unit 110 irradiates the display unit 140 with light from the back side. The display unit 140 transmits light emitted from the light source unit 110 and emits light corresponding to the displayed right-eye image and left-eye image to the right and left eyes of the viewer viewing from the front side. give. As described above, the display unit 140 is assumed to be a transmissive display device.

  FIG. 2 shows an example of a block configuration of the control unit 100. The control unit 100 includes a condensing position control unit 200, a detection unit 210, a light transmission amount control unit 220, and an image generation unit 230.

  The image generation unit 230 generates an image to be presented to the viewer. In one embodiment, the image generation unit 230 generates a right eye image and a left eye image. The right eye image and the left eye image generated by the image generation unit 230 are supplied to the display unit 140.

  The detection unit 210 detects the position of the viewer. The condensing position control unit 200 controls the light source unit 110 and the display unit 140 to condense the image displayed on the display unit 140 on the eyes of the viewer based on the position of the viewer detected by the detection unit 210. Control.

  The light transmission amount control unit 220 controls the amount of light from the display unit 140 to the viewer so that the surface luminance distribution of the image recognized by the viewer is substantially constant. Specifically, the light transmission amount control unit 220 controls the amount of light transmitted from the light source unit 110 by the display unit 140 to reduce the luminance distribution of light transmitted through the display unit 140.

  FIG. 3 schematically shows an example of the configuration of the display system in the display device 10. The display unit 140 includes a display panel 142 and an optical system 144. The light source unit 110 includes a light source device 300 that irradiates the display panel 142 with light from the back surface, and a light source driving unit 330 that moves the light source device 300. The light source device 300 includes a right eye light source 320 and a left eye light source 310. The light source driving unit 330 has a first driving unit 331 and a second driving unit 332.

  The display panel 142 displays the image supplied from the image generation unit 230. More specifically, the display panel 142 displays the right eye image and the left eye image supplied from the image generation unit 230. The display panel 142 functions as a transmissive display panel that transmits light emitted from the back side and gives light corresponding to an image displayed to a viewer viewing from the front side. That is, the display panel 142 transmits the light emitted from the light source device 300 and gives the viewer light corresponding to the displayed image.

  The optical system 144 condenses the light from the light source device 300 on the eyes of the viewer. As illustrated, the optical system 144 is provided between the light source device 300 and the display panel 142. In this way, the optical system 144 collects the light transmitted through the display panel 142 on the eyes of the viewer.

  In another form, the optical system 144 may collect the light transmitted through the display panel 142 on the eyes of the viewer. For example, the optical system 144 is provided between the display panel 142 and the viewer on the viewer side in front of the display panel 142, and transmits light from the light source device 300 that has passed through the display panel 142 to the eyes of the viewer. Condensed to

  The light source driving unit 330 controls the position of the light source device 300. The condensing position control unit 200 controls the light condensing position by the optical system 144 by controlling the light source driving unit 330. Specifically, the condensing position control unit 200 controls the condensing position by the optical system 144 by controlling the light emission position of the light source device 300 according to the distance between the optical system 144 and the viewer. To do.

  The detection unit 210 detects the position of the viewer. Specifically, the detection unit 210 detects the relative position of the viewer with respect to the optical system 144. More specifically, the detection unit 210 detects the distance from the optical system 144 to the viewer. The detection unit 210 may further detect the distance from the optical axis of the optical system 144 to the viewer.

  The detection unit 210 may be a distance measuring device that measures the distance to the viewer. In addition, the detection unit 210 may recognize the viewer from the image captured by the camera and detect the position of the viewer. In this case, the detection unit 210 preferably detects the position of the viewer's head, more preferably the position of the viewer's eyes, as the position of the viewer. The detection unit 210 may cause the viewer to input the distance from the display unit 140 to the viewer, and may detect the distance to the viewer based on the input information.

  Information indicating the position of the viewer detected by the detection unit 210 is supplied to the condensing position control unit 200 and the light transmission amount control unit 220. The condensing position control unit 200 controls the condensing position by the optical system 144 by controlling the light emission position of the light source device 300 based on the information detected by the detecting unit 210.

  Here, the first drive unit 331 moves the light source device 300 in a direction substantially perpendicular to the display panel 142. The condensing position control unit 200 controls the distance between the optical system 144 and the light source device 300 by moving the light source device 300 to the first driving unit 331. Thereby, the distance between the optical system 144 and the light source device 300 can be controlled according to the distance in the optical axis direction of the viewer.

  The second drive unit 332 moves the light source device 300 in a direction substantially parallel to the display panel 142. The condensing position control unit 200 moves the light source device 300 to the second driving unit 332 according to the position of the viewer with respect to the optical system 144 in a direction substantially parallel to the display panel 142. Thereby, the position of the light source device 300 in the direction parallel to the display panel 142 can be controlled according to the distance from the optical axis of the optical system 144 to the viewer.

  It should be noted that moving in the vertical direction is only required to include a component in the vertical direction in the moving direction, and naturally includes moving in a direction having an angle with respect to the parallel direction. Similarly, the movement in the parallel direction only requires that the component in the parallel direction is included in the movement direction, and naturally includes movement in a direction having an angle with respect to the vertical direction. The parallel direction is a concept including a horizontal direction in a plane parallel to the so-called display surface with respect to the display surface of the display panel 142 and a vertical direction orthogonal to the horizontal direction in the plane.

  The display panel 142 displays an image for the right eye that should be viewed with the right eye of the viewer and an image for the left eye that should be viewed with the left eye of the viewer. Both the left-eye light source 310 and the right-eye light source 320 irradiate the display panel 142 with light from the back surface. The left eye light source 310 and the right eye light source 320 are provided apart from each other by a predetermined distance in the left-right direction. The right eye light source 320 and the left eye light source 310 are fixedly provided in a state of being separated from each other by a predetermined distance, and are moved by the control of the light source driving unit 330 while maintaining the mutual positional relationship. . The optical system 144 condenses the light from the right eye light source 320 and the left eye light source 310 that are transmitted through or transmitted through the display panel 142 to each of the right and left eyes of the viewer.

  An example of a display method of the right eye image and the left eye image by the display panel 142 will be specifically described. As a display method using the display panel 142, a display method using polarized light can be exemplified. Specifically, the display panel 142 includes a first region that transmits light of the first polarization component, and a second region that transmits light of the second polarization component that is orthogonal to the light of the first polarization component. . Then, the display panel 142 displays the right eye image in the first area, and displays the left eye image in the second area. The light of the first polarization component and the light of the second polarization component may be linearly polarized light (S polarized light and P polarized light) whose polarization directions are orthogonal to each other, and circularly polarized light whose polarization rotation directions are opposite to each other. Also good.

  Further, in the display panel 142, such first regions and second regions may be spatially arranged alternately. As an example, the display panel 142 has first and second regions alternately in the vertical direction (vertical direction). For example, the display panel 142 includes a horizontal line that transmits light of the first polarization component and a horizontal line that transmits light of the second polarization component alternately.

  Instead of the configuration having the first region and the second region, the display panel 142 may alternately display the right-eye image and the left-eye image in terms of time. For example, the display panel 142 alternately switches between a first period for displaying the right-eye image and a second period for displaying the left-eye image every predetermined number of frames.

  The optical system 144 condenses at least one of the light that transmits the right-eye image and the left-eye image displayed on the display panel 142 and the transmitted light on the right and left eyes of the viewer. The optical system 144 is substantially the same as the display panel 142 or larger than the display panel 142, for example, provided at a position close to the display panel 142. An example of such an optical system 144 is a Fresnel lens.

  Then, the right eye light source 320 irradiates the back surface of the display panel 142 with light of the first polarization component. Further, the left eye light source 310 irradiates the back surface of the display panel 142 with light of the second polarization component. Accordingly, the right eye light source 320 can substantially give the right eye image displayed in the first region to the right eye of the viewer. The left eye light source 310 can substantially give the left eye image displayed in the second region to the left eye of the viewer.

  For example, when the display panel 142 is configured to display the right-eye image and the left-eye image alternately in time, the right-eye light source 320 is turned on in the first period and turned off in the second period. To do. Accordingly, the right eye light source 320 can substantially give the right eye image displayed in the first period to the right eye of the viewer. In this case, the left-eye light source 310 is turned on in the second period and turned off in the first period. Thereby, the light source 310 for the left eye can substantially give the image for the left eye to the left eye of the viewer.

  Here, the condensing position control unit 200 may change the position of the light source device 300 as the viewer moves. For example, the condensing position control unit 200 moves the light source device 300 to a conjugate position of the right eye and the left eye of the viewer in the optical system 144 as the viewer moves. The condensing position control unit 200 may move the light source device 300 when the position of the viewer detected by the detection unit 210 changes beyond a predetermined value. With this control, even when the viewer moves, the right eye image can be presented to the right eye of the moved viewer, and the left eye image can be presented to the left eye. Thereby, according to the display device 10, the viewer can appreciate the stereoscopic image from a free position.

  As described above, the display unit 140 can give the right eye image to the right eye and the left eye image to the left eye to the viewer. Thereby, according to the display device 10, a stereoscopic image can be presented to a naked eye viewer who does not wear the dedicated glasses for image separation.

  In the present display system, one light source device 300 is provided. However, a plurality of light source devices 300 that can be moved separately may be provided. Then, when there are a plurality of viewers, the condensing position control unit 200 places each of the plurality of light source devices 300 in the drive unit according to the distance between the optical system 144 and each of the plurality of viewers. The distance between the optical system 144 and each of the plurality of light source devices 300 may be controlled by moving them independently. Further, the second drive unit 332 can move the light source device 300 in a direction substantially parallel to the display panel 142, and the condensing position control unit 200 displays each of the plurality of viewers with respect to the optical system 144. The plurality of light source devices 300 may be moved to the second drive unit according to the position in a direction substantially parallel to the panel 142. Thereby, an appropriate image for the right eye and an image for the left eye can be presented to each of a plurality of viewers.

  In this display system, the light collection position is controlled by controlling the position of the light source device 300, but instead of controlling the position of the light source device 300, or in addition to controlling the position of the light source device 300, You may control the condensing position of the optical system 144 by controlling the position of the optical member which the optical system 144 has. For example, the condensing position control unit 200 controls the positions of one or more lenses included in the optical system 144. As described above, the condensing position control unit 200 can control the light emission position of the light source device 300 or the position of the optical member of the optical system 144 according to the distance between the optical system 144 and the viewer. .

  FIG. 4 schematically shows another example of the configuration of the display system in the display device 10. The display system according to the present example includes members having substantially the same configuration and function as those already described. In the display system according to this example, members having substantially the same configuration and function as those already described are denoted by the same reference numerals, and description thereof is omitted except for differences. In the display system according to this example, the display unit 140 further includes a diffusion plate 400 in addition to the display panel 142 and the optical system 144.

  The diffusion plate 400 is provided between the display panel 142 and the light source device 300 and diffuses light from the light source device 300 in the vertical direction of the display panel 142. Specifically, the diffusion plate 400 diffuses light from the right-eye light source 320 and the left-eye light source 310 in the vertical direction and applies the light to the display panel 142. For example, the diffusion plate 400 is substantially the same as the display panel 142 or larger than the display panel 142, and is provided, for example, at a position close to the display panel 142 on the back surface side of the display panel 142. As an example, the diffusion plate 400 is provided between the light source device 300 and the optical system 144.

  Here, the diffusion in the vertical direction means that the diffusion in the vertical direction is larger than that in the horizontal direction. As an example, the diffusion plate does not substantially diffuse light from the light source device 300 in the left-right direction, but substantially diffuses in the up-down direction. A region in which light is diffused in the vertical direction while being condensed in the horizontal direction by the diffusion plate 400 is schematically illustrated as a region 450.

  Examples of the diffusing plate 400 include a lenticular lens in which a plurality of lenses extending in the left-right direction of the display panel 142 are arranged in the vertical direction. In the case where the diffusing plate 400 is a lenticular lens, each of the plurality of lenses forming the lenticular lens diffuses light over the entire predetermined region including the condensing point of the optical system 144 and substantially parallel to the display panel 142. It has directivity.

  Specifically, it is assumed that the first lens among the plurality of lenses has the first directivity direction. In this case, among the plurality of lenses, the second lens arranged outside the first lens in the vertical direction of the diffusion plate 400 is inclined to the inside of the display panel 142 from the first directivity direction. 2 directivity directions. More specifically, if the first lens is disposed at a substantially center in the vertical direction of the diffusion plate 400, the first directivity direction is a direction substantially perpendicular to the display panel 142. The plurality of second lenses have a directing direction inclined more inward as the lens arranged more outward in the vertical direction of the diffusion plate 400.

  Thereby, it is possible to condense light in the vicinity of the eyes of the viewer while relatively widening the condensing range of the light from the light source device 300 in the vertical direction. For this reason, it is possible to reduce the amount of light radiated to a position where the viewer cannot exist while giving a degree of freedom to the viewing position of the viewer. For this reason, the amount of light emitted from the light source device 300 can be relatively reduced. For this reason, it is not necessary to use a relatively strong light source, and power consumption for image display can be reduced.

  Here, the spreading width of the light in the vertical direction by the diffusion plate 400 may be substantially the same as the vertical width of the display panel. The spreading width in the vertical direction is not limited to this, and may be a vertical width assumed as a position for the viewer to appreciate. When the diffusion plate 400 is provided as in the present display system, the light source device 300 may be moved only in the left-right direction without moving in the up-down direction.

  According to the display unit 140 as described above, even if the light source for the left eye 310 and the light source for the right eye 320 are light sources having a relatively small size such as substantial point light sources, the image of the image by the viewer is displayed. The viewable position can be extended vertically. Thereby, according to the display device 10 according to the present modification, the viewer can view the stereoscopic image and the two-dimensional image from a wide range of positions in the vertical direction. In addition, the degree of freedom regarding the vertical arrangement of the left eye light source 310 and the right eye light source 320 can be increased.

  FIG. 5 schematically shows still another example of the configuration of the display system in the display device 10. The display system according to this example includes a member having substantially the same configuration and function as those already described. In the display system according to this example, members having substantially the same configuration and function as those already described are denoted by the same reference numerals, and description thereof is omitted except for differences. In the display system according to this example, the display unit 140 includes a display panel 142, an optical system 144, and a diffusion plate 400.

  In the display system according to this example, the light source device 300 includes a light source array 510 and a kaleidoscope array 520. The light source array 510 has a plurality of light emitting elements 512 arranged. As an example, the light source array 510 includes a plurality of light emitting elements 512 arranged in the left-right direction.

  The kaleidoscope array 520 has a plurality of kaleidoscopes 522 arranged. Each of the plurality of kaleidoscopes 522 is provided corresponding to each of the plurality of light emitting elements 512 included in the light source array 510. Each of the plurality of kaleidoscopes 522 receives light from the corresponding light emitting element 512 included in the light source array 510 from the incident end and emits the light from the emission end.

  Each of the plurality of kaleidoscopes 522 emits the light from the corresponding light emitting elements 512 in a substantially uniform manner. Each of the plurality of kaleidoscopes 522 may be an optical element called a rod integrator. Here, the kaleidoscope 522 is an example of an optical element that emits light from a light emitting element with a substantially uniform illuminance distribution at the emission end.

  Since the exit surface of the kaleidoscope 522 is conjugate with the observation position (viewer's pupil position 550) as shown in FIG. 5, an image of the exit surface of the kaleidoscope 522 is formed at the observation position. Therefore, if the illuminance distribution on the exit surface of the kaleidoscope 522 is uniform, the viewer's eyes (pupil position 550) are uniformly illuminated in the range of the image. For this reason, even if the pupil position 550 moves, the amount of light entering the pupil is substantially constant and does not become darker or brighter depending on the pupil position.

  As will be described below, the plurality of sets of light emitting elements 512 and corresponding kaleidoscopes 522 function as light source units. The plurality of light source units function as the right eye light source or the left eye light source described above. The light source unit may not be determined in advance as either a right-eye light source or a left-eye light source. When light from the light source unit enters the right eye of the viewer, the light source unit is When a light source for the right eye is used and light from the light source unit is incident on the left eye of the viewer, the light source unit is a light source for the left eye.

  The condensing position control unit 200 selects any kaleidoscope 522 in the kaleidoscope array 520 among the plurality of light emitting elements 512 included in the light source array 510 according to the position of the viewer in the left-right direction detected by the detection unit 210. To control whether the light emitting element 512 corresponding to 1 emits light. For example, the condensing position control unit 200 causes the light emitting elements 512 corresponding to the kaleidoscope 522 provided in the vicinity of the conjugate positions of the right and left eyes of the viewer in the optical system 144 to emit light. For example, the condensing position control unit 200 selects the light emitting element 512 corresponding to the kaleidoscope 522 provided closest to the conjugate position and causes the light emitting element 512 to emit light.

  Specifically, the condensing position control unit 200 causes the viewer present at the position 550 to select the light emitting element 512a and the light emitting element 512b to emit light. The optical system 144 condenses the light from each of the light emitting element 512b and the light emitting element 512a that is transmitted through the display panel 142 in the vicinity of the right eye and the left eye of the viewer.

  Here, the light emitting element 512a functions as a light source for the left eye that irradiates the display panel 142 with light from the back surface. The light emitting element 512a and the corresponding kaleidoscope 522 function as a light source unit selected for the left eye of the viewer. The light-emitting element 512b functions as a right-eye light source that irradiates the display panel 142 with light from the back surface. The light emitting element 512b and the corresponding kaleidoscope 522 function as a light source unit selected for the right eye of the viewer.

  Thus, a light source array 510 in which a plurality of light emitting elements 512 are arranged, and a kaleidoscope in which a plurality of kaleidoscopes that emit light from each of the light emitting elements 512 from the incident end and exit from the emission end are arranged. The array forms a plurality of light source units that are substantially the same distance from the display panel 142 and are arranged in a direction substantially parallel to the display panel 142. And the condensing position control part 200 selects any one of several light source units according to the position in the direction substantially parallel to the viewer's display panel 142 with respect to the optical system 144, and makes the display panel 142 irradiate.

  For example, when it is detected that the viewer is present at the position 560, the condensing position control unit 200 selects the light emitting element 512c and the light emitting element 512d to emit light. Light from each of the light emitting element 512d and the light emitting element 512c that passes through the display panel 142 is collected by the optical system 144 in the vicinity of the right eye and the left eye of the viewer.

  As described above, according to the display system according to the present example, the right eye with respect to the right eye and the left eye of the viewer regardless of the position of the viewer in the left-right direction on the display surface of the display panel 142. Images for the left eye and images for the left eye can be provided. Thereby, according to the display apparatus 10 which concerns on this modification, a viewer can appreciate a stereo image from a free position.

  When there are a plurality of viewers, the detection unit 210 may detect the positions of the viewers. And the condensing position control part 200 makes the some light emitting element 512 light-emit corresponding to each viewer. Thereby, according to the display part 140 which concerns on this modification, a three-dimensional image can be provided simultaneously with respect to several viewers. For example, when it is detected that a viewer exists at each of the position 550 and the position 560, the condensing position control unit 200 includes four light emitting elements 512a, 512b, 512c, and 512d. The light emitting element 512 is selected to emit light.

  Note that the light emitting element 512 and the kaleidoscope 522 may be arranged with respect to the display panel 142 not only in the horizontal direction but also in the vertical direction. As an example, the light emitting elements 512 and the kaleidoscope 522 may be arranged in a matrix. Here, the emission surface where the emission ends of the plurality of kaleidoscopes 522 exist may be substantially parallel to the display surface of the display panel 142. Then, the condensing position control unit 200 selects one or more light emitting elements 512 arranged in the vertical direction and having the same coordinates in the horizontal direction based on the detected position of the viewer in the horizontal direction to emit light. It's okay. In addition, when the exit surfaces of the plurality of kaleidoscopes 522 are substantially parallel to the display surface of the display panel 142, the condensing position control unit 200 is detected to condense light on the eyes of the viewer. The light source device 300 may be moved in the optical axis direction of the optical system 144 based on the distance to the viewer.

  FIG. 6 schematically shows still another example of the configuration of the display system in the display device 10. The display system according to this example includes a member having substantially the same configuration and function as those already described. In the display system according to this example, members having substantially the same configuration and function as those already described are denoted by the same reference numerals, and description thereof is omitted except for differences. In the display system according to this example, the display unit 140 includes a display panel 142, an optical system 144, and a diffusion plate 400.

  In this example, in the plurality of light source units described in FIG. 5, the distance between at least one light source unit and the display panel 142 is different from the distance between at least one other light source unit and the display panel 142. That is, in this example, the distance from the display panel 142 is different, and the display panel 142 is provided with a plurality of light source units that respectively emit light from the back surface. And the condensing position control part 200 selects any one of several light source units according to the distance of the optical system 144 and a viewer, and makes the display panel 142 irradiate.

  In this example, the light source device 300 includes a light source array 610, a kaleidoscope array 620, and an illumination lens 600. The light source array 610 includes a plurality of light emitting elements 612 arranged. For example, the light source array 610 includes a plurality of light emitting elements 612 arranged in the vertical direction and the horizontal direction. In the light source device 300 according to this example, the emission ends of the plurality of kaleidoscopes 622 in the kaleidoscope array 620 are arranged obliquely with respect to the display panel 142. That is, the plane including the emission ends of the plurality of kaleidoscopes 622 is not parallel to the display surface of the display panel 142.

  Moreover, the kaleidoscope array 620 is arrange | positioned so that the optical distance to the output end of each kaleidoscope 622 and the optical system 144 may differ for every line as an example. The illumination lens 600 refracts the light emitted from the emission end of each kaleidoscope 622 of the kaleidoscope array 620 and irradiates the display panel 142.

  The light source array 610 and the kaleidoscope array 620 can irradiate light that forms an image at an arbitrary position in the left-right direction with respect to the display panel 142. Further, the light source array 610 and the kaleidoscope array 620 can irradiate light that forms an image at different distances with respect to the display panel 142. For this reason, without moving the light source device 300 in the vertical direction of the display panel 142, an image is appropriately presented to the viewer by selecting the light source array 610 that emits light according to the distance to the viewer. Can do.

  Specifically, the condensing position control unit 200 causes the viewer present at the position 650 to select the light emitting element 612a to emit light. The optical system 144 condenses the light from the light emitting element 612a that passes through the display panel 142 to the eyes of the viewer. When it is detected that the viewer is present at the position 660, the condensing position control unit 200 selects the light emitting element 612b to emit light. The light of the light emitting element 612b that passes through the display panel 142 is condensed on the eyes of the viewer by the optical system 144. In this example, a vertical section is illustrated, but as described with reference to FIG. 5, the light emitting element 612 that emits light among the plurality of light emitting elements 612 arranged in the left and right direction is positioned at the position in the left and right direction of the viewer. By selecting based on the right eye image and the left eye image, the right eye image and the left eye image can be presented to the viewer's right eye and left eye, respectively.

  As described above, the display unit 140 according to the present example has the right eye of the viewer regardless of the position of the viewer in the horizontal direction with respect to the display panel 142 and the distance between the viewer and the display panel 142. In some cases, the right eye image and the left eye image can be appropriately provided to the left eye. Thereby, according to the display part 140 which concerns on this modification, a viewer can appreciate a three-dimensional image from a free position.

  In the present display system example, a plurality of light source units are arranged in the horizontal direction and the vertical direction, but the light source units may be arranged only in the vertical direction. In this case, the condensing position control unit 200 may condense light to the eyes of the viewer by moving the light source device 300 in the left / right direction according to the position of the viewer in the left / right direction. Alternatively, more light source units may be arranged in the vertical direction than in the horizontal direction, and the light source device 300 may be moved and / or the light source unit selected according to the position in the horizontal direction of the viewer.

  Note that the illumination lens 600 may reduce the luminance distribution of light emitted from the light source device 300 to the display panel 142. Specifically, the distance between the display panel 142 and the illumination lens 600 may be substantially equal to the focal length of the illumination lens 600. Further, although the display system in which the illumination lens is not provided has been described with reference to FIG. 5, a similar illumination lens may be provided in the display system in FIG.

  FIG. 7 shows an exemplary block configuration of the light transmission amount control unit 220 together with an exemplary configuration of the display panel 142. The light transmission amount control unit 220 includes a light transmission amount control unit 710, a correction parameter storage unit 720, and an instruction input reception unit 730.

  The display panel 142 includes a display pixel array 740 in which a plurality of display pixels are arranged, and a light transmission restriction unit 750. The light transmission limiting unit 750 limits the light transmission amount for each region of the display panel 142. Specifically, the light transmission amount control unit 710 controls the light transmission restriction unit 750 to reduce the luminance distribution of light transmitted through the light transmission restriction unit 750. Specifically, the light transmission amount control unit 710 restricts the light transmission amount by the light transmission restriction unit 750 for each region. Here, examples of the light transmission limiting unit 750 include a liquid crystal element array in which a plurality of liquid crystal elements are arranged in a matrix. The light transmission amount control unit 710 controls the light transmittance of the plurality of liquid crystal elements, thereby allowing each region of the light transmission limiting unit 750 formed by the plurality of liquid crystal elements, each row of liquid crystal elements, or each column of liquid crystal elements. In addition, the amount of light transmission may be controlled.

  The correction parameter storage unit 720 stores a correction parameter indicating the light transmission amount for each region. The correction parameter may be calculated in advance from the light distribution characteristics of the light source device 300. Here, the light transmission amount control unit 710 controls the light transmission restriction unit 750 based on the correction parameter stored in the correction parameter storage unit 720, thereby limiting the light transmission amount for each region of the display panel 142. Good.

  As an example, the correction parameter storage unit 720 may be implemented by a nonvolatile memory. The correction parameter storage unit 720 may be implemented by a storage element that can maintain stored data even when power is not supplied. Examples of such a storage element include a semiconductor memory such as a flash memory, a magnetic recording element, and the like. In addition, the correction parameter storage unit 720 may be implemented by a memory element whose stored data is maintained by standby power, or may be implemented by a memory element whose stored data is maintained by an auxiliary power source such as a battery.

  The instruction input receiving unit 730 receives an instruction input from the viewer. Specifically, the instruction input receiving unit 730 receives an instruction input for determining the transmission amount of each region from the viewer. The operation of each unit cooperating with the input of the instruction input receiving unit 730 will be specifically described with reference to FIG.

  FIG. 8 shows an example of a processing flow in the light transmission amount control unit 220. The light transmission amount control unit 710 selects one correction parameter from among a plurality of correction parameters stored in advance (S800). The light transmission amount control unit 710 controls the transmittance of each region of the light transmission restriction unit 750 according to the selected correction parameter. In this state, an image for brightness adjustment is displayed on the display pixel array 740 under the control of the control unit 100. As a result, the display unit 140 displays an image for luminance adjustment with adjusted luminance (S810). Here, the brightness adjustment image may be a predetermined image. As an image for brightness adjustment, an image with the same brightness value of each pixel can be exemplified.

  Then, the light transmission amount control unit 710 determines whether a selection instruction from the viewer is input to the instruction input receiving unit 730 (S820). For example, the light transmission amount control unit 710 determines whether a selection instruction is input from the viewer within a predetermined length of time after displaying the brightness adjustment image in S810.

  When it is determined in S820 that a selection instruction has been input, the light transmission amount control unit 710 stores the correction parameter selected in S800 and applied to the display of the brightness adjustment image in S810 in the correction parameter storage unit 720. (S830). Then, the light transmission amount control unit 710 controls the light transmittance of each region of the light transmission restriction unit 750 based on the correction parameter stored in the correction parameter storage unit 720, and the display pixel array 740 includes an image. The browsing stereoscopic image generated by the generation unit 230 is displayed (S840).

  If it is determined in S820 that a selection instruction has not been input, the process proceeds to S800. Thereafter, when the process proceeds to S800, the light transmission amount control unit 710 sequentially selects one correction parameter from a plurality of correction parameters stored in advance in a predetermined order.

  As described above, the light transmission amount control unit 710 sequentially changes the correction parameters for controlling the light transmission restriction unit 750 while the display panel 142 displays the image for luminance adjustment. The light transmission amount for each region of the display panel 142 is sequentially changed. Then, when the instruction input receiving unit 730 receives an instruction input from the viewer, the correction parameter storage unit 720 stores the correction parameter applied at the timing indicated by the instruction input. The light transmission amount control unit 710 controls the light transmission restriction unit 750 based on the correction parameter stored in the correction parameter storage unit 720 when the display panel 142 displays an image for viewing. The light transmission amount for each region of the display panel 142 is limited. Thereby, the display apparatus 10 can present an image with substantially no luminance unevenness to the viewer.

  Note that the light transmission amount control unit 220 may execute the luminance adjustment flow from S800 to S830 when an instruction to perform the luminance adjustment flow is input from the viewer to the instruction input receiving unit 730. In addition, the light transmission amount control unit 220 may execute the luminance adjustment flow from S800 to S830 when the correction parameter is not stored in the correction parameter storage unit 720. When correction parameters are stored in the correction parameter storage unit 720, a browsing image may be displayed by adjusting the light transmission amount according to the stored correction parameters. Thereby, the viewer may be able to quickly view the browsing image using the correction parameter previously determined by the viewer.

  The light transmission amount control unit 220 may execute the luminance adjustment flow from S800 to S830 every time the display unit 140 is activated. When the correction parameter is first selected in S800 after the display unit 140 is activated, the light transmission amount control unit 710, on the condition that the correction parameter is stored in the correction parameter storage unit 720, is the correction parameter storage unit 720. The correction parameters stored in may be selected. Thereby, it is possible to quickly select a correction parameter previously determined by the viewer. For this reason, it is possible to increase the possibility that the viewer can quickly start viewing the image for browsing.

  In addition, the light transmission amount control unit 220 adjusts the light transmission amount according to the currently applied correction parameter and displays the browsing image, and then detects that the position of the viewer has changed. The brightness adjustment flow from S800 to S830 may be executed. When the brightness uniformity varies depending on the viewing position, the brightness is adjusted appropriately according to the viewer's position by executing the brightness adjustment flow according to the change in the viewer's position. The browsing image can be presented to the viewer.

  FIG. 9 shows an example of a method for generating a right eye image and a left eye image. The image generation unit 230 generates a right-eye image 920 and a left-eye image 910 by shifting one image 900 left and right. Accordingly, the image generation unit 230 can generate the right-eye image 920 and the left-eye image 910 for stereoscopic viewing from an image that has not been generated for stereoscopic viewing by simple processing.

  More specifically, the image generation unit 230 generates the right-eye image 920 by horizontally shifting the image 900 to the right, and generates the left-eye image 910 by horizontally shifting the image 900 to the left. . In this case, the image generation unit 230 sets the difference between the relative positions of the left-eye image 910 and the right-eye image 920 in the horizontal direction to be equal to or less than the inter-pupil distance L of the viewer. For example, the image generation unit 230 sets an image obtained by shifting the image 900 to the left by L / 2 as an image for left eye 910, and sets an image obtained by shifting the common image by L / 2 to the right as an image for right eye 920.

  Here, the interpupillary distance L may be a distance (40 mm to 90 mm) between the pupils of the viewer. The interpupillary distance may be a predetermined value in the image generation unit 230, and information indicating the interpupillary distance input from the viewer may be provided to the image generation unit 230. The left eye image and the right eye image are displayed at positions separated by the interpupillary distance L, and the left eye image presented to the viewer's left eye and the right eye presented to the viewer's right eye When the viewer merges the image for use and recognizes it as a single image, the viewer recognizes the fused image as being located at infinity. Therefore, the image generation unit 230 generates the right-eye image and the left-eye image by setting the relative position difference between the right-eye image and the left-eye image to be equal to or less than the inter-pupil distance L, so that the display device 10 can view the image. A stereoscopic image can be presented to the viewer.

  Further, when the right image and the left eye image are generated by shifting the common image to the left and right, a blank portion is generated at the left end of the right eye image. Similarly, a blank portion is also generated at the right end of the left eye image. Since these regions can give an image to only one of the right eye and the left eye, there are cases where it becomes an obstacle to giving a natural stereoscopic effect to the viewer.

  Thus, as an example, the image generation unit 230 may add the left end image to the left end blank portion of the right eye image and add the right end image to the right end blank portion of the left eye image. For example, the image generation unit 230 copies the right end image of the right eye image to generate a right end image, and copies the left end image of the left eye image to generate the left end image. In this case, the image generation unit 230 may blur the right end image and the left end image. Thereby, the image generation unit 230 can present the same image to the right eye and the left eye at the end portion, and can reduce unnaturalness felt by the viewer at the end portion.

  In addition, as an example, the image generation unit 230 generates a left end image by enlarging a predetermined range from the left end of the display area for the right eye image to the left side, and an image in the predetermined range from the right end of the display area for the left eye image. Is expanded to the right to generate a right edge image. Thereby, the image generation unit 230 can present a natural stereoscopic image in which images are continuous at the end portion to the viewer.

  Further, as an example, the image generation unit 230 may display a frame image such as black on the right end portion and the left end portion of the right eye image and the left eye image, respectively. As a result, the image generation unit 230 can provide a stereoscopic effect in all the regions within the frame without a region that does not provide a stereoscopic effect at the left end and the right end. Furthermore, by displaying such a frame image, it is possible to give the viewer a sense of seeing an object through a frame (window frame, magnifying glass frame, etc.), so that a natural three-dimensional effect can be given to the viewer. Can be provided. Further, by displaying such a frame image, it may be possible for the viewer to promote the fusion of the right eye image and the left eye image.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above-described embodiment. It is apparent from the scope of the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention.

  The order of execution of each process such as operations, procedures, steps, and stages in the apparatus, system, program, and method shown in the claims, the description, and the drawings is particularly “before” or “prior to”. It should be noted that the output can be realized in any order unless the output of the previous process is used in the subsequent process. Regarding the operation flow in the claims, the description, and the drawings, even if it is described using “first”, “next”, etc. for convenience, it means that it is essential to carry out in this order. It is not a thing.

DESCRIPTION OF SYMBOLS 10 Display apparatus, 100 Control part, 110 Light source part, 140 Display part, 142 Display panel, 144 Optical system, 200 Condensing position control part, 210 Detection part, 220 Light transmission amount control unit, 230 Image generation part, 300 Light source apparatus , 330 light source drive unit, 310 left eye light source, 320 right eye light source, 331 first drive unit, 332 second drive unit, 400 diffuser plate, 450 region, 550, 560, 650, 660 position, 510, 610 light source Array, 512, 612 Light emitting element, 520, 620 Kaleidoscope array, 522, 622 Kaleidoscope, 600 Illumination lens, 710 Light transmission amount control unit, 720 Correction parameter storage unit, 730 Instruction input reception unit, 740 Display pixel array, 750 Light transmission restriction unit, 900 images, 910 left eye image, 92 The right-eye image

Claims (21)

A display panel for displaying images,
A light source device for irradiating the display panel with light from the back surface;
An optical system for condensing the light transmitted through or transmitted through the display panel to the eyes of the viewer;
Depending on the distance between the optical system and the viewer, the light emission position of the light source device or the position of the optical member of the optical system is controlled to control the light collection position of the optical system. A display device comprising an optical position control unit. A first driving unit that moves the light source device in a direction substantially perpendicular to the display panel;
The display device according to claim 1, wherein the condensing position control unit controls a distance between the optical system and the light source device by moving the light source device to the first driving unit. A second driving unit that moves the light source device in a direction substantially parallel to the display panel;
The said condensing position control part moves the said light source device to the said 2nd drive part according to the position in the direction substantially parallel to the said display panel of the said viewer with respect to the said optical system. Display device. A plurality of the light source devices movable separately;
The condensing position control unit is configured to move each of the plurality of light source devices independently to the driving unit according to the distance between the optical system and each of the plurality of viewers. The display device according to claim 2, wherein a distance from each of the plurality of light source devices is controlled. A second driving unit that moves the light source device in a direction substantially parallel to the display panel;
The condensing position control unit moves the plurality of light source devices to the second driving unit according to positions of the plurality of viewers with respect to the optical system in a direction substantially parallel to the display panel. The display device according to claim 4. The display panel displays a right-eye image to be visually recognized by the viewer's right eye and a left-eye image to be visually recognized by the viewer's left eye,
The light source device
A light source for the right eye that irradiates light from the back surface to the display panel;
A light source for the left eye that irradiates light from the back surface to the display panel;
The optical system condenses the light from each of the light source for the right eye and the light source for the left eye that is transmitted through or transmitted through the display panel to each of the right eye and the left eye of the viewer. 6. The display device according to any one of 5 to 5. The light source device
The distance from the display panel is different, and the display panel has a plurality of light source units each irradiating light from the back surface,
The display device according to claim 1, wherein the condensing position control unit selects any of the plurality of light source units according to a distance between the optical system and the viewer to irradiate the display panel. The light source device
The distance from the display panel is substantially the same, and has a plurality of light source units arranged in a direction substantially parallel to the display panel,
The condensing position control unit selects one of the plurality of light source units to irradiate the display panel according to a position of the viewer in a direction substantially parallel to the display panel with respect to the optical system. Item 8. The display device according to Item 1 or 7. The display panel displays a right-eye image to be visually recognized by the viewer's right eye and a left-eye image to be visually recognized by the viewer's left eye,
Each of the plurality of light source units is
A light source for the right eye that irradiates light from the back surface to the display panel;
A light source for the left eye that irradiates light from the back surface to the display panel;
The optical system condenses light from each of the light source for the right eye and the light source for the left eye that is transmitted through or transmitted through the display panel to each of the right eye and the left eye of the viewer. Or the display apparatus of 8. The plurality of light source units are:
A light source array in which a plurality of light sources for the right eye and a plurality of light sources for the left eye are arranged;
A kaleidoscope array in which a plurality of kaleidoscopes that enter the light from each of the plurality of right-eye light sources and the plurality of left-eye light sources from the incident end and emit from the output end are arranged;
The display device according to claim 9, wherein emission ends of the plurality of kaleidoscopes are arranged obliquely with respect to the display panel.   The display device according to claim 1, wherein the optical system is provided between the display panel and the light source device. The display device according to claim 1, further comprising a diffusion plate that is provided between the display panel and the light source device and diffuses light from the light source device in a vertical direction of the display panel.   The display device according to claim 12, wherein the diffusion plate is a lenticular lens in which a plurality of lenses extending in a horizontal direction of the display panel are arranged side by side in the vertical direction.   14. The display device according to claim 13, wherein each of the plurality of lenses has directivity that diffuses light over a predetermined region that includes a condensing point of the optical system and is substantially parallel to the display panel. A first lens of the plurality of lenses has a first directivity direction;
Of the plurality of lenses, a second lens disposed outside the first lens in the up-down direction of the diffuser plate is inclined inward of the display panel from the first directivity direction. The display device according to claim 13, having two directivity directions. The first lens is disposed substantially at the center in the vertical direction of the diffusion plate,
The first directivity direction is a direction substantially perpendicular to the display panel;
The display device according to claim 15, wherein the plurality of second lenses have a directing direction inclined more inward as a lens disposed more outward in the vertical direction of the diffusion plate. The display device according to claim 1, further comprising an illumination lens that reduces a luminance distribution of light emitted from the light source device to the display panel.   The display device according to claim 17, wherein a distance between the display panel and the illumination lens is substantially equal to a focal length of the illumination lens. The display panel is
A light transmission limiting unit that limits a light transmission amount for each area of the display panel;
The display device
The display device according to claim 17, further comprising: a light transmission amount control unit that controls a light transmission restriction unit to reduce a luminance distribution of light transmitted through the light transmission restriction unit.   The light transmission amount control unit controls the light transmission restriction unit based on a correction parameter calculated from a light distribution characteristic of the light source device, thereby restricting a light transmission amount for each region of the display panel. Item 20. The display device according to Item 19. The light transmission amount control unit sequentially changes correction parameters for controlling the light transmission restriction unit while the display panel displays an image for luminance adjustment, thereby changing each display panel region. Sequentially changing the light transmission amount of
The display device
An instruction input receiving unit for receiving an instruction input by the viewer;
A correction parameter storage unit that stores a correction parameter that was applied at the timing indicated by the instruction input;
When the display panel displays an image for viewing, the light transmission amount control unit controls the light transmission restriction unit based on a correction parameter stored in the correction parameter storage unit, thereby The display device according to claim 19, wherein the light transmission amount for each area of the display panel is limited.

Images