JP2006184860A - Multi-view display apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a multi-view display apparatus capable of appropriately adjusting a viewing angle or a viewing range. <P>SOLUTION: The multi-view display apparatus 1, which outputs different images in a plurality of directions from one display means by regulating the exiting directions of light rays from respective display pixels by a light shielding panel 8 disposed in front of an image display unit 6, is provided with: an input means for inputting a viewing angle adjusting signal; and a shielding position varying means for varying the shielding position against the exiting light in a light shielding unit in accordance with the inputted viewing angle adjusting signal. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a multi-view display device that can provide different information independent of each other for a plurality of users on a single screen substantially simultaneously.

A display device in which different images are observed depending on the direction in which the display panel is viewed, for example, a multi-view display device in which different images are observed from two directions has been devised (for example, see Patent Document 1). Specifically, one liquid crystal display (abbreviated as LCD: Liquid Crystal Display)
A display device is disclosed in which two screens can be displayed simultaneously. For example, in a vehicle, different screens can be viewed from a driver seat and a passenger seat (see Patent Documents 2 and 3). Further, a two-screen display device that can display two types of images on the same screen at the same time is disclosed (see Patent Documents 4 and 5). The multi-view display device is also called a multiple view display device.

JP 2004-206089 A JP-A-6-186526 JP 2000-137443 A JP-A-11-331876 JP-A-9-46622

  The multi-view display device has a limited viewing angle because of its structure. However, since the position of the viewer of the multi-view display device is not constant, adjustment is necessary.

  An object of the present invention is to provide a multi-view display device capable of appropriately adjusting a viewing angle or a viewing range in the multi-view display device.

The present invention includes a display unit capable of displaying individual videos for a plurality of viewing directions on the same screen;
A light shielding part for regulating a light emission direction from the display part;
An information acquisition unit for acquiring light emission information regarding the emission direction of light from the display unit;
A multi-view display device comprising: a shielding position variable unit that varies a shielding position of the emitted light in the light shielding unit according to the light emission information acquired by the information acquisition unit.

  In the invention, it is preferable that the light emission information is information indicating a viewing angle adjustment value for each viewing direction in which individual images are output.

  Further, the present invention provides a viewing angle adjustment value storage unit connected to the information acquisition unit for storing an adjustment value of a viewing angle, and light emission information corresponding to the adjustment value stored in the viewing angle adjustment value storage unit Is provided with a light emission information output unit for outputting the information to the information acquisition unit.

  Further, the present invention is characterized in that the viewing angle adjustment value storage unit stores a viewing angle adjustment value for each viewing direction in which individual images are output.

  The viewing angle adjustment value storage unit may store adjustment values for a plurality of viewing angles for each viewing direction in which individual images are output.

  In the invention, it is preferable that the shielding position changing unit is constituted by a liquid crystal transmission / shielding plate that controls transmission / shielding of light by a liquid crystal element.

  According to the present invention, the information acquisition unit acquires light emission information by inputting a signal of a viewing angle adjustment switch for adjusting a viewing angle.

  Further, the present invention is characterized in that an adjustment video display unit for displaying an adjustment video on the display unit during the adjustment by the viewing angle adjustment switch is provided.

  Further, the present invention is characterized in that an adjustment value display unit for displaying an image showing an adjustment value of the viewing angle on the display unit during the adjustment by the viewing angle adjustment switch.

  In addition, the present invention is characterized in that a visual range adjustment unit that narrows a visual range, which is a range of angles at which an image can be viewed, is provided during the adjustment by the viewing angle adjustment switch.

  Moreover, the present invention is characterized in that the information acquisition unit acquires light emission information by inputting a driving state signal indicating a driving state of the vehicle.

  According to the present invention, the information acquisition unit acquires light emission information by inputting a temperature signal indicating an ambient temperature.

  Moreover, the present invention is characterized in that the information acquisition unit acquires light emission information by inputting a position signal indicating the position of the viewer.

Further, in the present invention, the information acquisition unit acquires light emission information by inputting a visual position signal indicating the positions of the left and right eyes of the viewer,
The shielding position varying unit varies the shielding position of the emitted light in the light shielding unit so that the viewer can view individual images with left and right eyes.

The present invention also includes a display unit capable of displaying individual videos for a plurality of viewing directions on the same screen;
A light shielding part for regulating a light emission direction from the display part;
A viewing range information acquisition unit that acquires information on a viewing range indicating a viewing range that is an angle range in which the image can be viewed;
A multi-view display device comprising: a shielding position variable unit that varies a shielding position of emitted light in the light shielding unit according to the viewing range information acquired by the viewing range information acquisition unit.

  Further, the present invention is characterized in that the viewing range information is information indicating an adjustment value of the viewing range for each viewing direction in which individual videos are output.

Further, the present invention is connected to the visual range information acquisition unit, a visual range information storage unit for storing an adjustment value of the visual range,
The image processing apparatus includes a preset unit including a visual range information output unit that outputs visual range information corresponding to the adjustment value stored in the visual range information storage unit to the visual range information acquisition unit.

Further, the present invention is characterized in that the viewing range information storage unit stores a viewing range adjustment value for each viewing direction in which individual videos are output.

  Further, the present invention is characterized in that the viewing range information storage unit stores a plurality of viewing range adjustment values for each viewing direction in which individual videos are output.

  Further, the present invention is characterized in that the viewing range information acquisition unit acquires viewing range information by inputting a signal of a viewing range adjustment switch for adjusting the viewing range.

The present invention also includes a display unit capable of displaying individual videos for a plurality of viewing directions on the same screen;
The viewing angle with respect to the vehicle width direction of the vehicle in which the display unit is provided, and the light emission direction from the display unit so that the viewing angle of the driver's seat side image and the viewing angle of the passenger seat side image are different A multi-view display device comprising: a light shielding portion that regulates the amount of light.

  In the invention, it is preferable that the light shielding unit regulates the light emission direction from the display unit so that the viewing angle of the passenger side image is larger than the viewing angle of the driver side image.

  In the invention, it is preferable that the light shielding unit regulates the light emission direction from the display unit so that the viewing angle of the driver side image is larger than the viewing angle of the passenger side image.

  According to the present invention, since the shielding position varying unit varies the shielding position of the emitted light in the light shielding unit according to the acquired light emission information, the following effects are achieved. The optimal shielding position of the shielding part corresponding to various light emission information can be obtained. Since the shielding position of the light shielding unit can be varied according to the light emission information acquired by the information acquisition unit, compared to the conventional technique in which the slit is driven and controlled using a driving source such as a motor ( 1) The number of parts can be reduced. (2) It becomes possible to improve the responsiveness of viewing angle adjustment. (3) The manufacturing cost can be reduced and the size of the multi-view display device itself can be reduced by the effect (1). In addition, since the viewing angle can be adjusted by changing the shielding position of the light shielding unit according to the light emission information acquired by the information acquisition unit, the viewing angle or the viewing range in the multi-view display device should be adjusted appropriately. Can do.

  Further, according to the present invention, individual videos can be easily output in a plurality of directions. In addition, it is possible to reduce crosstalk.

  According to the present invention, since the light emission information corresponding to the adjustment value stored in the viewing angle adjustment value storage unit is output to the information acquisition unit, the viewing angle adjustment can be performed easily and quickly. In other words, once the adjustment value is stored in the viewing angle adjustment value storage unit, the shielding position of the emitted light in the light shielding unit is uniquely determined according to the adjustment value. Therefore, the viewing angle can be adjusted easily and quickly.

  According to the present invention, since the viewing angle adjustment value is stored for each viewing direction in which individual images are output, the viewing angle corresponding to the viewer existing in each direction is set.

  In addition, according to the present invention, since a plurality of viewing angle adjustment values are stored for each viewing direction in which individual images are output, an optimum viewing angle is set for a viewer existing in each direction. A plurality of viewers present in a plurality of directions can surely visually recognize individual clear images.

  Further, according to the present invention, light transmission / shielding control can be realized by the liquid crystal element. Therefore, the structure can be simplified and the apparatus can be miniaturized as compared with the conventional technique in which the slit is driven and controlled using a drive source.

  In addition, according to the present invention, when the signal of the viewing angle adjustment switch is input, the light emission information is acquired and the shielding position of the light shielding unit is varied. The viewer can adjust the viewing angle adjustment switch by himself / herself.

  According to the present invention, since the adjustment video is displayed during the adjustment of the viewing angle adjustment switch, the viewing angle adjustment switch can be adjusted while the viewer confirms the adjustment video.

  Further, according to the present invention, an image showing the adjustment value of the viewing angle is displayed during the adjustment of the viewing angle adjustment switch, so that the viewer can adjust the viewing angle adjustment switch while checking the adjustment value of the viewing angle. Can do. Therefore, the reproducibility of viewing angle adjustment can be improved.

  In addition, according to the present invention, the viewing angle can be adjusted with high accuracy by narrowing the viewing range during the viewing angle adjustment switch adjustment.

  Moreover, according to this invention, the shielding position of the light shielding part according to the traveling state of a vehicle is varied by inputting the traveling state signal of a vehicle. There is no need to move the head or the like against the traveling state. Therefore, the burden on the viewer can be reduced.

  Moreover, according to this invention, the shielding position of the light shielding part corresponding to ambient temperature can be correct | amended by inputting a temperature signal. The viewing angle can be adjusted with higher accuracy.

  Further, according to the present invention, it is possible to specify the viewer's position by inputting the position signal, and to adjust the viewing angle with high accuracy suitable for the viewer's position.

  Further, according to the present invention, by inputting the visual position signal, the viewer can view the individual images with the left and right eyes, so that the viewer can view the stereoscopic image.

  Moreover, according to this invention, since the shielding position variable part changes the shielding position of the emitted light in a light shielding part according to the acquired visual recognition range information, there exists the following effect. The optimal shielding position of the shielding part corresponding to information of various viewing ranges can be obtained. According to the viewing range information from the viewing range information acquiring unit, the viewing position adjustment can be realized by changing the shielding position of the light shielding unit installed on the front surface of the display unit.

  Further, according to the present invention, individual videos can be easily output in a plurality of directions. In addition, it is possible to reduce crosstalk.

  Further, according to the present invention, since the visual range information corresponding to the adjustment value stored in the visual range information storage unit is output to the visual range information acquisition unit, the visual range adjustment can be performed easily and quickly. In other words, once the adjustment value is stored in the viewing range information storage unit, the shielding position of the emitted light in the light shielding unit is uniquely determined according to the adjustment value. Therefore, the viewing range can be adjusted easily and quickly.

  Further, according to the present invention, since the adjustment value of the viewing range is stored for each viewing direction in which individual videos are output, the viewing range corresponding to the viewer existing in each direction is set.

  In addition, according to the present invention, adjustment values for a plurality of viewing ranges are stored for each viewing direction in which individual videos are output, so that an optimal viewing range is set for a viewer existing in each direction. A plurality of viewers present in a plurality of directions can surely visually recognize individual videos.

  Further, according to the present invention, when the signal of the viewing range adjustment switch is input, the viewing range information is acquired and the shielding position of the light shielding unit is varied. The viewer can adjust the viewing range adjustment switch by himself / herself.

  Further, according to the present invention, the light shielding unit regulates the light emission direction from the display unit so that the viewing angle of the driver seat side image and the viewing angle of the passenger seat side image are different from each other. As for video, it is possible to improve the video quality by eliminating crosstalk or the like from the video on the other side.

  Further, according to the present invention, it is possible to improve the video quality of the passenger side video by making the viewing angle of the passenger side video larger than the viewing angle of the driver side video. In addition, the passenger seat side image can be enjoyed while maintaining a range in which the viewer on the passenger seat side can freely move.

  Further, according to the present invention, it is possible to improve the video quality of the driver side video by making the viewing angle of the driver side video larger than the viewing angle of the passenger side video.

  Hereinafter, a plurality of embodiments for carrying out the present invention will be described with reference to the drawings. Parts corresponding to the matters described in the preceding forms in each form are denoted by the same reference numerals, and overlapping description may be omitted. When only a part of the configuration is described, the other parts of the configuration are the same as those described in the preceding section. Not only the combination of the parts specifically described in each embodiment, but also the embodiments can be partially combined as long as the combination does not hinder.

FIG. 1 is a diagram conceptually showing a multi-view display device 30 according to an embodiment of the present invention. The multi-view display device 30 (sometimes simply referred to as “display device” 30) includes a display control unit 31 (control unit) and a display unit 32. First image data 34 is supplied from the first image source 33 to the display control unit 31, and second image data 36 is supplied from the second image source 35 to the control unit 31, and the first and second images are supplied. Data 34 and 36 are processed so that they can be displayed on display 32 substantially simultaneously. The first image source 33 is, for example, a DVD (
Digital Versatile Disk) is a movie image of a player, a received image of a television receiver, and the second image source is, for example, a map of a car navigation device, a route guidance image, or the like.

  Depending on the relative positions of the observers 37 and 38 with respect to the display unit 32, in other words, depending on the viewing angle with respect to the display unit 32, one observer 37 displays the first display image 39 and the other observer 38 The second display image 40 can be viewed substantially simultaneously. One observer 37 can see the first display image 39 over the entire display surface of the display unit 32, and the other observer 38 can see the second display image 40 over the entire display surface of the display unit 32. Can see. The display unit 32 supplied with the display data 41 from the control unit 31 includes a liquid crystal panel provided with a parallax barrier described later. Half of the total number of pixels in the longitudinal direction (lateral direction) of the display unit 32 is used for displaying the first display image 39 based on the first image source 33. The remaining half of the total pixels are used to display the second display image 40 based on the second image source 35.

  One observer 37 is located on one side in the longitudinal direction of the display unit 32 and on one side in the thickness direction of the display unit 32. This one observer 37 sees only the pixels corresponding to the first display image 39, and the second display image 40 is substantially seen by being blocked by the parallax barrier formed on the surface of the display unit 32. Absent. The other observer 38 is positioned on the other side in the longitudinal direction of the display unit 32 and on one side in the thickness direction of the display unit 32. Only the pixel corresponding to the second display image 40 is visible to the other observer 38, and the first display image is substantially invisible due to being blocked by the parallax barrier.

The parallax barrier will be described.
For example, in a flat panel type display, a viewing area is generated by a combination of a pixel configuration of the display and an optical element generally called a parallax lens. An example of such a lens is a parallax barrier or “parallax barrier”. This element is a screen in which vertical (longitudinal) transmission slits are formed separated by opaque regions. The function of a parallax lens such as a parallax barrier is to limit the light transmitted through the pixel to a predetermined emission angle. This restriction defines the viewing angle of each pixel row behind the corresponding slit. The range of the viewing angle of each pixel is determined by the pixel width and the distance between the plane including the pixel and the plane including the parallax lens. A plurality of pixel rows corresponding to each slit can be seen in the respective viewing windows. In the present embodiment, such a parallax barrier can be applied.

  With the schematic configuration described above, different information and content can be provided to one and the other observer on a single screen. Of course, if the first and second image sources are the same, one and the other viewer can see the same image.

  FIG. 2 is a perspective view showing an example of mounting the multi-view display device according to the embodiment of the present invention on a vehicle. In the vehicle, for example, a display unit 32 of the multi-view display device is arranged in a dashboard portion arranged near the middle in the vehicle width direction. Various operations on the multi-view display device 30 are performed by operating at least one of a touch panel (not shown) integrally provided on the surface of the display unit 32, the operation unit 42, and an infrared or wireless remote controller not shown. Done. A speaker 43 is provided at each door of the vehicle, and is configured such that sounds, warning sounds, and the like linked to the display image can be output from the speaker 43.

  The other observer 38 is seated in the driver seat 44, and the one observer 37 is seated in the passenger seat 45. The image that can be viewed from the first viewing direction (driver's seat side) with respect to the display unit 32 is, for example, an image such as a map of a car navigation device, and can be viewed from the second viewing direction (passenger seat side) substantially simultaneously. Possible images are, for example, television reception images and DVD movie images. Accordingly, at the same time that the driver in the driver's seat 44 receives driving assistance by car navigation, the passenger in the passenger seat 45 can enjoy television and DVD. Moreover, since each image is displayed using, for example, the entire 7-inch screen, the screen size is not reduced as in the conventional multi-window display. That is, for the driver and the passenger, optimum information and contents are provided for each driver as if there were independent dedicated displays.

  FIG. 3 is a diagram schematically illustrating a cross-sectional structure of the display unit 32. The display unit 32 mainly includes a liquid crystal panel 46 and a backlight 47. The liquid crystal panel 46 includes a pair of substrates, a parallax barrier 48 (sometimes referred to as a light shielding portion 48) as a light shielding portion disposed in front of the light emitting direction side, and a glass substrate 49, and two polarizations. The structure is sandwiched between the plates 50 and 51. The pair of substrates is configured by sandwiching a liquid crystal layer 54 between a TFT (Thin Film Transistor) substrate 52 and a color filter substrate 53 disposed to face the TFT substrate. The liquid crystal panel 46 is disposed slightly apart from the backlight 47. In addition, the liquid crystal panel 46 includes pixels composed of RGB (Red-Green-Blue) colors, that is, three primary colors.

Each pixel of the liquid crystal panel 46 is displayed and controlled separately for left side (passenger seat side) display and right side (driver seat side) display. In FIG. 3, the left display pixel is denoted as “left”. The right display pixel is referred to as “right”. The left display pixel is blocked from being displayed on the right side, that is, on the driver's seat side by the parallax barrier 48, and is visible on the left side, that is, on the passenger seat side. The right-side display pixel is blocked from being displayed on the left side, that is, the passenger seat side by the parallax barrier 48, and is visible from the right side, that is, the driver seat side. This makes it possible to provide different displays for the driver and passengers. That is, navigation map information can be given to the driver, and at the same time, a passenger can be shown a DVD movie or the like.

  By changing the configuration of each pixel of the parallax barrier 48 and the liquid crystal panel 46, it is possible to display different images not only in the first and second viewing directions but also in a plurality of directions such as three directions. The parallax barrier 48 itself may be configured by an electrically drivable liquid crystal shutter or the like to change the viewing angle.

  FIG. 4 is a front view showing the positional relationship between the left display pixel 55, the right display pixel 56, and the parallax barrier 48. 3 is a cross-sectional view taken along line AA ′ of FIG. 3 and 4 show a part of the liquid crystal panel 46 in which, for example, 800 pixels are arranged in the longitudinal (lateral) direction of the display unit 32 and 480 pixels are arranged in the lateral (vertical) direction. The left display pixels 55 and the right display pixels 56 are grouped in the vertical direction and are alternately arranged in the horizontal direction. The parallax barriers 48 are arranged at predetermined intervals in the horizontal direction and are provided uniformly in the vertical direction. Accordingly, when the display unit 32 is viewed from the left side, the parallax barrier 48 covers the right display pixel 56 and the left display pixel 55 can be seen through the vertical transmission slit. When the display unit 32 is viewed from the right side, the parallax barrier 48 covers the left display pixel 55 and the right display pixel 56 can be seen through the vertical transmission slit.

  When the display unit 32 is viewed from the vicinity of the front surface perpendicular to one surface of the display unit 32, both the left display pixel 55 and the right display pixel 56 are visible, so the left display image and the right display image substantially overlap each other. Looks. Here, the left side display pixels 55 and the right side display pixels 56 alternately arranged as shown in FIG. 4 have RGB colors, as shown in FIG. It may be configured by a single color such as G column or B column, or may be configured as a column in which a plurality of RGB are mixed.

  FIG. 5 is a diagram schematically illustrating a circuit configuration of the TFT substrate 52. The TFT substrate 52 includes a display panel driving unit 57, a scanning line driving circuit 58, a data line driving circuit 59, a TFT element 60, data lines 61 to 64, scanning lines 65 to 67, a pixel electrode 68 and a subpixel 69. A plurality of sub-pixels 69 are formed with a region surrounded by the data lines 61 to 64 and the scanning lines 65 to 67 as one unit. Each sub-pixel 69 is formed with a pixel electrode 68 that applies a voltage to the liquid crystal layer 54 and a TFT element 60 that controls the switching thereof. The display panel drive unit 57 controls the drive timing of the scanning line drive circuit 58 and the data line drive circuit 59. The scanning line driving circuit 58 performs selective scanning of the TFT element 60, and the data line driving circuit 59 controls the voltage applied to the pixel electrode 68.

  The plurality of sub-pixels 69 are, for example, the first pixel data (left image) on the data lines 61 and 63 based on the synthesized data of the first and second image data or the first and second individual image data. The first image data group for displaying the first image and the second image are displayed by driving the second pixel data (for right image display) to the data lines 62 and 64. And a second image data group to be formed.

FIG. 6 is a block diagram schematically showing a display device according to an embodiment of the present invention, which is an application example to a so-called audio visual navigation (abbreviated as AVN: Audio Visual Navigation) multifunction device. The AVN multifunction device includes a display unit 32 including a touch panel 70, a control unit 71, a CD (Compact Disk) / MD (Mini Disk) reproduction unit 72, a radio reception unit 73, a TV reception unit 74, a DVD reproduction unit 75, a hard disk ( Abbreviation HD (Hard Disk) playback unit 76, navigation unit 77, distribution circuit 78, first image adjustment circuit 79, second image adjustment circuit 80, audio adjustment circuit 81, image output unit 82, VICS information reception unit 83, GPS (Global Positioning
System) information receiving unit 84, selector 85, operation unit 86, remote control transmission / reception unit 87, remote control 88, memory 89, external audio / video input unit 90, camera 91, brightness detection unit 92, occupant detection unit 93, rear display unit 94, an ETC (Electronic Toll Collection) vehicle-mounted device 95 and a communication unit 96.

  The display unit 32 includes a touch panel 70, a liquid crystal panel 46, and a backlight 47. As described above, the liquid crystal panel 46 can display the image viewed from the driver's seat side as the first viewing direction and the image viewed from the passenger seat side as the second viewing direction substantially simultaneously. . The display unit 32 may be a flat panel display other than the liquid crystal panel 46, such as an organic EL (Electro Luminescence) display, a plasma display panel, a cold cathode flat panel display, or the like.

  The control unit 71 distributes images and sounds from various sources to the first image adjustment circuit 79 and the second image adjustment circuit 80 if they are images, and to the sound adjustment circuit 81 if they are sounds. Distribute. The various sources are a CD / MD playback unit 72, a radio reception unit 73, a TV reception unit 74, a DVD playback unit 75, an HD playback unit 76, and a navigation unit 77. The first and second image adjustment circuits 79 and 80 adjust brightness, color tone, contrast, and the like, and display the adjusted images on the display unit 32 by the image output unit 82. Further, the sound adjustment circuit 81 adjusts the distribution, volume, and sound to each speaker, and the adjusted sound is output from the speaker.

FIG. 7 is a block diagram schematically showing the image output unit 82. The image output unit 82 includes, for example, a first writing circuit 97, a second writing circuit 98, a VRAM 99 (Video RAM), and a display panel driving unit 100. For example, the first writing circuit 97 is based on the image data corresponding to the odd columns of the adjusted image data, and the second writing circuit 98 is based on the corresponding image data in the even columns, respectively. Write to the corresponding area in the VRAM 99.

  The display panel driving unit 100 is a circuit that drives the liquid crystal panel 46, and based on the image data (the combined data of the first and second image data) held in the VRAM 99, the corresponding pixels of the liquid crystal panel 46 are displayed. To drive. Since the image data is written in the VRAM 99 so as to correspond to the multi-view display image obtained by combining the first and second image data, one drive circuit is sufficient, and the operation is also normal. The operation is the same as that of the driving circuit of the liquid crystal display device. As another configuration, the first display panel driving circuit and the first display panel driving circuit for driving the corresponding pixels of the liquid crystal display panel based on the respective image data without combining the first image data and the second image data. It is also conceivable to use two display panel drive circuits. The control unit 71 and the image output unit 82 correspond to a shielding position variable unit.

  Here, an example of various sources shown in FIG. 6 will be described. When the HD playback unit 76 is selected, at least one of music data such as an MP3 (MPEG Audio Layer 3) file, image data such as a JPEG file, and map data for navigation stored in the hard disk is read. Menu display and image data for selecting music data can be displayed on the display unit 32.

  The navigation unit 77 includes a map information storage unit that stores map information used for navigation, obtains information from a VICS (Vehicle Information and Communication System) information reception unit 83, and a GPS information reception unit 84, and performs navigation operations. You can create and display an image for The TV receiving unit 74 receives an analog TV broadcast wave and a digital TV broadcast wave from the antenna via the selector 85.

FIG. 8 is a block diagram schematically showing the control unit 71. The control unit 71 controls the distribution circuit 78 and various sources, and displays two selected sources or one source. The control unit 71 also has a function of causing the display unit 32 to display an operation menu display for controlling these various sources. The control unit 71 includes a microprocessor and the like, and mainly includes a CPU 101 (Central Processing Unit), a program storage unit 102, a data storage unit 103, and an input / output interface 104.

  The CPU 101 comprehensively controls each unit and each circuit in the display device 30 via the input / output interface 104. The program storage unit 102 includes ROM (Read Only Memory) that holds various programs necessary for the operation of the display device 30. The data storage unit 103 is composed of a RAM (RAM: Random Access Memory) that holds various data. ROM, RAM, and the like can be used either internally in the CPU or provided externally. It is also possible to replace the ROM with an electrically rewritable nonvolatile memory such as a flash memory.

  The user can control the various sources by means of a switch provided around the touch panel 70 or the display unit 32 or an input operation or selection operation such as voice recognition by the operation unit 86. Further, an input or selection operation may be performed by the remote control 88 via the remote control transmission / reception unit 87. The control unit 71 performs control including various sources in accordance with the operation of the touch panel 70 and the operation unit 86. The control unit 71 is configured to be able to control the volume of each of the plurality of speakers 43 (see FIG. 2) provided in the vehicle using the audio adjustment circuit 81. The control unit 71 also stores various setting information such as image quality setting information and programs and vehicle information in the memory 89.

  FIG. 9 is a block diagram schematically showing the configuration of the memory 89. The memory 89 includes first and second screen RAMs 105 and 106, image quality setting information storage means 107, and environmental adjustment value holding means 108. The first screen RAM 105 can write the adjustment value of the image quality of the first image set by the user, and the second screen RAM 106 can write the adjustment value of the image quality of the second image set by the user. Is possible. In the image quality setting information storage means 107, adjustment values in a plurality of stages are stored in advance so as to be selectable for adjusting the image quality of the first and second images. The environmental adjustment value holding means 108 holds the adjustment state of the image quality of the first and second images with respect to the surrounding environment. The image quality setting information storage means 107 and the environmental adjustment value holding means 108 are configured by an electrically rewritable nonvolatile memory such as a flash memory or a battery-backed volatile memory.

  As another embodiment of the present invention, an image from, for example, a rear monitoring camera 91 connected to the external audio / image input unit 90 may be displayed on the display unit 32. In addition to the rear monitoring camera 91, a video camera, a game machine, and the like may be electrically connected to the external audio / image input unit 90. The control unit 71 can change the settings of the output image and the sound based on the information detected by the brightness detection unit 92 or the occupant detection unit 93. The brightness detecting means 92 is realized by, for example, a vehicle light switch or an optical sensor, and the occupant detecting means 93 is realized by, for example, a pressure sensor.

  The rear display unit 94 is provided for the rear seat of the vehicle, and the same image as the image displayed on the display unit 32 via the image output unit 82, or an image for a driver seat or an image for a passenger seat. Either one can be displayed. However, the rear display unit 94 can display either the driver seat image or the passenger seat image via the distribution circuit 78. The control unit 71 controls to display the charge display from the ETC onboard device 95, the charge history, the lane guidance to the ETC gate, and the like. The control unit 71 may control a communication unit for wireless connection with a mobile phone or the like, and display related thereto.

10 shows a multi-view display device according to an embodiment of the present invention, FIG. 10 (a) is a diagram showing an example of an image output to the driver's seat side, and FIG. 10 (b) is on the passenger seat side. FIG. 10C is a cross-sectional view of the main part, showing an example of the output image. FIG. 11 is a block diagram of a control system of the multi-view display device 1. The multi-view display device 1 according to this embodiment is mounted on a vehicle. However, the multi-view display device is not necessarily limited to the vehicle, and can be applied to electronic devices other than the vehicle. The following description also includes a description of the shielding position adjustment method.

The multi-view display device 1 includes a display main body 2 that displays an image, a driver 3, a microcomputer 4, and a memory 5. The display body 2 (sometimes simply referred to as the display 2) is realized by a liquid crystal display panel 6, a touch panel 7, a light shielding panel 8, a backlight 9, a polarizing plate 10, and the like. The driver 3 that drives each pixel of the liquid crystal display panel 6 to display an image and the microcomputer 4 are stored in, for example, the display main body 2. The microcomputer 4 includes a central processing unit 11 (CPU: Central Processing Unit), a ROM 12 (ROM: Read Only Memory), and a RAM 13 (RAM: RAM).
Random Access Memory). The CPU 11, the ROM 12, and the ram 13 are electrically connected to the input / output interface 15 via the bus 14. A memory 5 that stores a viewing angle adjustment value, a viewing range adjustment value, and the like is connected to the CPU 11 and the like via a bus 14.

  The display main body 2 includes a liquid crystal display panel 6 composed of a liquid crystal display element that performs image display, and light composed of a liquid crystal display element that regulates by transmitting / shielding the emission direction of the emitted light from each pixel of the liquid crystal display panel 6. It consists of a shielding panel 8 and the like. The liquid crystal display element (TFT-LCD) 21 is disposed slightly apart from the backlight 9 and the polarizing plate 10 in the thickness direction and sandwiches the liquid crystal layer between two electrode substrates 22 and 23 formed of glass plates. Consists of. A light shielding panel 8 is installed on the front surface of the liquid crystal display panel 6, that is, on the front surface in the light emission direction side. Similarly to the liquid crystal display panel 6, the light shielding panel 8 is provided with a liquid crystal element 24 between electrode substrates 16 and 25 formed of a glass plate. Then, polarizing plates 10a, 10b, and 10c are provided between the backlight 9 of the electrode substrate 23, between the electrode substrates 22 and 25, and outside the electrode substrate 16, respectively. The light shielding panel 8 formed by the polarizing plates 10b and 10c transmits and blocks light according to the same principle as that of the liquid crystal display device. The glass substrate 16 and 22 and the liquid crystal element 24 perform light transmission / shielding control for each liquid crystal transmission / shielding pixel, whereby the shielding position can be varied. And the shielding position of the emitted light in the light shielding panel 8 is varied according to the input viewing angle adjustment signal and viewing range adjustment signal.

  The elements of the liquid crystal display panel 6 are driven by the driver 3, and the elements of the light shielding panel 8 are driven by the driver 20. The viewing angle is adjusted by adjusting the shielding position in the light shielding panel 8, and the viewing range adjustment (sometimes referred to as viewing range adjustment) is adjusted by adjusting the area of the light transmitting portion of the light shielding panel 8. it can.

FIG. 12 is a schematic diagram showing stepwise adjustment of the viewing angle of the multi-view display device 1, FIG. 12A is a diagram showing a state before the viewing angle is adjusted, and FIG. FIG. 12C is a diagram showing a state of the first stage for adjusting, and FIG. 12C is a diagram showing a state of the second stage for adjusting the viewing angle. This will be described with reference to FIGS. 10 and 11 as well. The viewing angle adjustment signal is an adjustment value for each direction in which different images are output (simply referred to as each direction) and is a signal indicating the adjustment value of the viewing angle. This viewing angle adjustment signal can be input by the viewer, for example, via the input means and the touch panel 7 which is an information acquisition unit. The viewing angle adjustment signal corresponds to “light emission information”. In the memory 5, the viewing angle adjustment value storage area stores a plurality of adjustment values for each direction. However, the adjustment value is not necessarily limited to a plurality of adjustment values, and one adjustment value may be stored in the viewing angle adjustment value storage area of the memory 5 for each direction. Then, in accordance with the operation of the touch panel 7, the adjustment value for the direction to be adjusted is read from the memory 5 and a viewing angle adjustment signal is output to the driver 20. Further, an adjustment value corresponding to the viewing angle at the time of operation is stored in the memory 5 by the registration operation of the touch panel 7. By these operations, a viewing angle preset function is realized.

  A case where the viewing area is changed by changing the shielding position of the light shielding unit 48 will be described. FIG. 13 is a diagram illustrating the positional relationship between the light shielding unit 48 and the color filter substrate 53, FIG. 13A is a diagram in a state where the light shielding unit 48 is at the reference position, and FIG. FIG. 13C is a diagram showing a state in which the shielding position of the light shielding unit 48 is shifted to one side in the vehicle width direction, and FIG. 13C is a diagram showing a state in which the shielding position of the light shielding unit 48 is shifted to the other side in the vehicle width direction. As shown in FIG. 13A, in the state where the light shield 48 is in the reference position, the viewing angle α (α is 60 degrees, for example) of the driver's seat side (left side) image and the passenger seat side (right side) image. Is controlled with respect to the color filter substrate 32 (sometimes referred to as the color filter 32) so that the viewing angle β is equal to β (β is 60 degrees, for example). The viewing angles α and β are based on the vehicle width direction of the vehicle in which the display unit 32 is provided.

  As shown in FIG. 13B, based on the steering angle and direction of the steering and the acceleration of the vehicle (hereinafter referred to as the turning angle and the like), the field of view of the driver side (left side) image with respect to the vehicle width direction The angle α may be smaller than the viewing angle β of the passenger side (right side) image. In other words, the emission direction of the light from the color filter substrate 32 is regulated so that the viewing angle β of the right image is larger than the viewing angle α of the left image based on the cut angle or the like. Specifically, the shielding position of the light shielding unit 48 is shifted by a predetermined small distance from the shielding position of the light shielding unit 48 at the reference position to one side in the vehicle width direction (denoted by an arrow H1). Thus, the light emission direction from the color filter 32 is regulated. Even if the observer's head position shifts in the left-right direction, that is, in the vehicle width direction from the seating position due to the centrifugal force acting on the vehicle, the light emission direction from the color filter 32 is regulated according to the shift. As a result, the visual field areas of both the driver's seat and passenger seat can be maintained appropriately.

  As shown in FIG. 13C, the viewing angle β of the passenger side (right side) image is smaller than the viewing angle α of the driver side (left side) image based on the turning angle and the like. Can do. In other words, the emission direction of light from the color filter 32 is regulated so that the viewing angle α of the left image is larger than the viewing angle β of the right image. Specifically, the shielding position of the light shielding part 48 is shifted by a predetermined small distance from the shielding position of the light shielding part 48 at the reference position to the other side in the vehicle width direction (indicated by the arrow H2). Thus, the emission direction of light from the display unit 32 is regulated. Moreover, even if the observer's head position is shifted in the left-right direction from the seating position due to the centrifugal force acting on the vehicle, the emission direction of light from the color filter 32 is regulated according to the shift. The visibility area of both the driver seat and the passenger seat can be appropriately maintained.

  As described above, the light shielding unit 48 regulates the light emission direction from the color filter 32 so that the viewing angle α of the driver seat side image and the viewing angle β of the passenger seat side image are different. It is possible to appropriately set the area (area where both images can be visually recognized). For example, as shown in FIG. 13B, the viewing angle β of the passenger side (right side) image is larger than the viewing angle α of the driver side (left side) image. By restricting the emission direction, it is easier for the observer on the side of the passenger seat with a wider range of movement than the driver whose body position is substantially restrained as the vehicle is driven. It is possible to prevent entry into a visually recognizable area. As shown in FIG. 13C, the light emission direction from the color filter 32 is set so that the viewing angle α of the driver's seat side (left side) image is larger than the viewing angle β of the passenger side (right side) image. This makes it difficult to see the passenger side (left side) image from the driver's seat, so the display image subject to travel restriction (for example, the DVD image displayed on the passenger side (left side)) It can be prevented from being easily visible from (right side).

The touch panel 7 also functions as a viewing angle adjustment switch. This viewing angle adjustment switch is a switch for adjusting the viewing angle, and can instruct to move the viewing angle to the left and right for the image in each direction. The multi-view display device 1 further includes an adjustment image display unit and an adjustment value display unit (adjustment value display unit). Among these, the adjustment image display means can be identified when viewed in the viewing angle direction when the adjustment image, for example, the viewing angle is appropriately adjusted on the display 2 during the adjustment of the viewing angle by the touch panel 7. The correct image. The adjustment image is stored in the memory 5. The adjustment value display means displays an image indicating the adjustment value on the display 2 during the viewing angle adjustment. The image indicating the adjustment value includes, for example, a level meter, a pie chart, and a vector display that increase or decrease in accordance with the increase or decrease of the adjustment value. However, it is not necessarily limited only to these images. The multi-view display device 1 further includes a visual range adjustment unit. This visual range adjustment means narrows the visual range which is the range (angle width) in which an image can be visually recognized during viewing angle adjustment (see FIG. 14).

  FIG. 14 is a schematic diagram showing stepwise adjustment of the viewing range (angle width) of the multi-view display device 1, and FIG. 14A is a diagram showing a state before the viewing range is adjusted, and FIG. ) Is a diagram showing a state of a visual range adjustment stage. In the figure, the visible range is expressed as α1, β1, and β2. This will be described with reference to FIGS. 10 and 11 as well. The viewing range adjustment signal is a signal indicating a viewing range (angle width) that is a range of angles at which an image can be viewed. The viewing range adjustment signal is a signal indicating an adjustment value of the viewing range for each direction. This visual range adjustment signal can be input via the touch panel 7 by a viewer, for example. A plurality of adjustment values are stored for each direction in the adjustment value storage area of the viewing range in the memory 5. However, the adjustment value is not necessarily limited to a plurality of adjustment values, and the adjustment value may be stored for each direction in the adjustment value storage area of the visual recognition range of the memory 5. The multi-view display device is provided with a preset viewing range function similar to the viewing angle preset function by the memory 5 and the touch panel 7 described above.

  The touch panel 7 also has a function as a visual range adjustment switch. This visual range adjustment switch is a switch for adjusting the visual range, and can instruct to widen or narrow the visual range for images in each direction. The multi-view display device 1 also has a function of displaying an adjustment image that can be easily adjusted on the display 2 in the viewing range adjustment stage. The adjustment image is stored in the memory 5. The aforementioned adjustment value display means displays an image indicating the adjustment value on the display 2 in the adjustment stage by the visual range adjustment switch. The image indicating the adjustment value includes, for example, a level meter, a pie chart, a vector display, and the like that increase and decrease in accordance with the increase and decrease of the adjustment value. However, it is not necessarily limited only to these images.

  FIG. 15 is a flowchart schematically illustrating the shielding position adjustment process according to the embodiment of the present invention. The shielding position adjustment process is performed by the CPU 11. This process is repeated during the operation of the multi-view display device 1. In step a1, the presence or absence of an input signal is determined. If there is an input signal, the process proceeds to step a2, and if not, the process ends. The input signal indicates, for example, a state in which adjustment of the viewing angle or the like is performed on the touch panel 7, such as a signal generated by pressing a viewing angle adjustment switch or a viewing range adjustment switch, or a driving state signal indicating a driving state of the vehicle. It is set in advance. The travel state signal can be realized by a gyro, an acceleration sensor, a vehicle speed detecting means, or other sensors that detect the state of the vehicle, which are provided in the vehicle. As other inputs, a temperature signal (thermocouple element) indicating the ambient temperature of the multi-view display device 1 and a position signal indicating the position of the viewer (for example, a CCD camera installed in the vehicle is used to detect the position of the viewer). The position of the viewer is detected from the seat position).

In step a2, each element of the light shielding panel 8 is controlled to be a shielding position corresponding to the input signal. In addition, the element control pattern of the light shielding panel 8 according to the input is stored in the memory 5, and each element is controlled based on this pattern data. An example of control according to the vehicle situation will be described. For example, when driving on a curve, as shown in FIGS. 12 (b) and 12 (c), the driver and the occupant travel linearly by centrifugal force. In comparison, the body is slightly displaced in the vehicle width direction (displacement amount “δ”). When traveling on the left curve, the viewing angle of the image to be output to the driver side is adjusted to be more acute than the straight traveling state in FIG. A value is defined. This adjustment value is read from the memory 5 based on a signal from a sensor provided in the vehicle. Based on this adjustment value, the viewing angle of the image is controlled.

  As shown in FIG. 12C, when traveling on the right curve, the viewing angle of the image to be output to the driver side with respect to the vehicle width direction according to the amount of displacement is shown in FIG. The adjustment value is determined to make the angle more obtuse than the straight running state. At the same time, an adjustment value is determined and adjusted so that the viewing angle of the image to be output to the occupant is sharper than the straight running state. When other vehicles suddenly accelerate or stop, the driver and the occupant displace the body in the front-rear direction of the vehicle due to inertial force, etc., but adjust the viewing angle adjustment value in each direction according to the amount of displacement. It may be determined. Thus, after changing the shielding position of the emitted light in the shielding part in accordance with the input signal in step a2, this processing is terminated.

  FIG. 16 is a flowchart showing the shielding position adjustment processing according to the embodiment of the present invention. The shielding position adjustment process is performed by the CPU 11. This process is started by an operation for starting adjustment of the viewing angle (viewing range) by the operator. That is, the adjustment is performed only when the operator indicates the intention to perform the adjustment, and the undesired adjustment is not performed. In step b1, the presence or absence of an input signal related to the adjustment value is determined. If there is an input signal, the process proceeds to step b2, and if not, the process proceeds to step b5. In step b5, the adjustment value is set to a default value, and the process ends.

  In step b2, it is determined whether or not an adjustment value corresponding to the input signal is stored in the memory 5. If stored, the process proceeds to step b3, and if not stored, the process proceeds to step b6. In step b6, a display prompting the operator to perform a manual operation and its operation screen are displayed, and this process is terminated. In step b3, a signal corresponding to the adjustment value corresponding to the input signal is read from the memory 5, and the process proceeds to step b4. In step b4, the adjustment value read from the memory 5 is output to the driver 20, and the process ends.

  FIG. 17 is a flowchart showing the adjustment value storing process according to the embodiment of the present invention. The adjustment value storing process is performed by the CPU 11. This process is started by an adjustment value registration operation (operation of the touch panel 7) by the operator. In step c1, the input signal is read and the process proceeds to step c2.

  In step c2, the adjustment value of the light shielding panel 8 is read, and the process proceeds to step c3. In step c3, it is determined whether or not an adjustment value for the input signal is stored. If stored, the process proceeds to step c4. If not stored, the process proceeds to step c5. In step c4, the adjustment value for the same input signal stored in the memory 5 is updated with the new adjustment value, and the process is terminated. In step c5, the input signal and the adjustment value are associated with each other and stored in an empty area of the memory 5, and this process is terminated.

According to the multi-view display device 1 described above, since the liquid crystal transmission / shielding plate changes the shielding position of the emitted light in the light shielding panel 8 in accordance with the input viewing angle adjustment signal, the following effects are obtained. Since the shielding position not only moves as a whole, but can be finely and separately changed in various patterns, the optimum shielding position of the light shielding panel 8 corresponding to various viewing angle adjustment signals can be obtained. Since the viewing angle adjustment can be realized by changing the shielding position of the light shielding panel 8 installed in front of the liquid crystal display panel 6 in accordance with the viewing angle adjustment signal from the input means, various situations such as the running state of the vehicle It is possible to automatically adjust according to the above.

  Since the viewing angle adjustment signal or the viewing range adjustment signal is a signal indicating an adjustment value for each direction in which different images are output, it is possible to independently adjust different images in a plurality of directions. In addition, it is possible to reduce crosstalk. In addition, since the multi-view display device 1 includes preset means (preset unit) for adjusting the viewing angle or the viewing range, the viewing angle and the viewing range can be easily and quickly adjusted. In other words, once the adjustment value is stored in the memory 5, the shielding position of the emitted light in the light shielding panel 8 is uniquely determined according to the adjustment value. Therefore, the viewing angle and the viewing range can be adjusted easily and quickly.

  Since a plurality of adjustment values are stored for each direction in the adjustment value storage area for the viewing angle and the viewing range in the memory 5, the optimal viewing angle and viewing range are set for the viewer existing in each direction. . Therefore, a plurality of viewers existing in a plurality of directions can surely visually recognize different clear images. When the adjustment value is stored for each direction in the adjustment value storage area for the viewing angle and the viewing range in the memory 5, the viewing angle and the viewing range corresponding to the viewer existing in each direction are set. According to the multi-view display device 1, light transmission / shielding control can be realized by a liquid crystal element. Therefore, the structure can be simplified and the apparatus can be miniaturized as compared with the conventional technique in which the slit is driven and controlled using a drive source.

  In addition, the viewer can adjust the viewing angle and the viewing range by operating the touch panel 7. In addition, since the adjustment image is displayed at the time of viewing angle adjustment, the viewer can easily and more accurately adjust the viewing angle while checking the adjustment image. In addition, since an image showing the adjustment value is displayed at the time of adjusting the viewing angle and the viewing range, the viewing angle adjustment switch can be adjusted while checking the adjustment value by the viewer. Therefore, the viewer can easily store the adjustment value, and the reproducibility of the viewing angle and the viewing range adjustment can be improved. In addition, the viewing angle and the viewing range can be adjusted with high accuracy by narrowing the viewing range during the viewing angle and the viewing range adjustment.

  Further, according to the multi-view display device 1, by inputting a traveling state signal of the vehicle, the shielding position of the light shielding panel 8 is varied according to the traveling state of the vehicle, and an appropriate viewing angle is obtained. For example, it is no longer necessary to move the head or the like against the centrifugal force or inertial force caused by the running state. Therefore, the physical burden on the viewer can be reduced. It is possible to comfortably and reliably view images in each direction without being influenced by the running state of the vehicle. When a temperature signal indicating the ambient temperature of the multi-view display device 1 is input, the distortion amount at the shielding position of the light shielding panel 8 corresponding to the ambient temperature can be corrected. Therefore, the viewing angle and the viewing range can be adjusted with higher accuracy. Further, for example, by inputting a position signal indicating the position of the viewer using a CCD camera or the like, the position of the viewer can be specified, and high-precision viewing angle and viewing range adjustment suitable for the position of the viewer can be performed. In the present invention, “video” includes at least one of a still image and a moving image.

  As another embodiment of the present invention, an input means for inputting a visual position signal indicating the position of the left and right eyes of the viewer is provided, and the liquid crystal transmission / shielding plate allows the viewer to visually observe different images between the left and right eyes. The light shielding panel 8 may be configured such that the shielding position of the light shielding panel 8 is variable. According to this configuration, since the viewer can see different images with the left and right eyes, the viewer can view the stereoscopic image. The setting of the shielding part may be fixed so that it is not subject to right and left when mounted (shipping), for example, depending on the vehicle, in addition to dynamically changing the shielding position of the shielding part. Note that the present invention is not limited to in-vehicle use, and can be applied to home use.

1 is a diagram conceptually illustrating a multi-view display device 30 according to an embodiment of the present invention. It is a perspective view which shows the example of mounting to the vehicle of the multi view display apparatus which concerns on embodiment of this invention. 3 is a diagram schematically showing a cross-sectional structure of a display unit 32. FIG. 4 is a front view showing a positional relationship among a left display pixel 55, a right display pixel 56, and a parallax barrier 48. FIG. 2 is a diagram schematically showing a circuit configuration of a TFT substrate 52. FIG. 1 is a block diagram schematically showing a display device according to an embodiment of the present invention. 3 is a block diagram schematically showing an image output unit 82. FIG. It is a block diagram which shows the control part 71 schematically. 3 is a block diagram schematically showing the configuration of a memory 89. FIG. FIG. 10A shows the multi-view display device 1 according to the embodiment of the present invention, FIG. 10A shows an example of an image output to the driver seat side, and FIG. 10B is output to the passenger seat side. FIG. 1C is a cross-sectional view of the main part, illustrating an example of an image. 3 is a block diagram of a control system of the multi-view display device 1. FIG. FIGS. 12A and 12B are schematic diagrams showing stepwise viewing angle adjustment of the multi-view display device 1, FIG. 12A is a diagram showing a state before the viewing angle adjustment, and FIG. FIG. 12C is a diagram showing a state in one stage, and FIG. 12C is a diagram showing a state in a second stage in which viewing angle adjustment is performed. FIGS. 13A and 13B are diagrams illustrating the positional relationship between the light shielding unit 48 and the color filter substrate 53, FIG. 13A is a diagram illustrating a state where the light shielding unit 48 is at the reference position, and FIG. FIG. 13C is a diagram showing a state in which the shielding position of the light shielding unit 48 is shifted to the right side. It is the schematic which shows the visual recognition range (angle width) adjustment of the multi view display apparatus 1 in steps, FIG.14 (a) is a figure which shows the state of the previous step which performs visual recognition range adjustment, FIG.14 (b) is visual recognition range. It is a figure which shows the state of an adjustment stage. It is a flowchart which represents roughly the shielding position adjustment process which concerns on embodiment of this invention. It is a flowchart which shows the shielding position adjustment process which concerns on embodiment of this invention. It is a flowchart showing the adjustment value memory | storage process which concerns on embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Multi view display apparatus 2 Display main body 5 Memory 6 Liquid crystal display panel 7 Touch panel 8 Light shielding panel 11 CPU
16 Electrode substrate 32 Display unit 48 Light shielding unit 71 Control unit 82 Image output unit

Claims (23)

A display unit capable of displaying individual images for a plurality of viewing directions on the same screen;
A light shielding part for regulating a light emission direction from the display part;
An information acquisition unit for acquiring light emission information regarding the emission direction of light from the display unit;
A multi-view display device comprising: a shielding position varying unit configured to vary a shielding position of the emitted light in the light shielding unit according to the light emission information acquired by the information acquisition unit.   The multi-view display device according to claim 1, wherein the light emission information is information indicating a viewing angle adjustment value for each viewing direction in which individual images are output.   A viewing angle adjustment value storage unit connected to the information acquisition unit for storing an adjustment value of a viewing angle, and light emission information corresponding to the adjustment value stored in the viewing angle adjustment value storage unit. The multi-view display device according to claim 1, further comprising: a preset unit having a light output information output unit for outputting to the display.   The multi-view display device according to claim 3, wherein the viewing angle adjustment value storage unit stores a viewing angle adjustment value for each viewing direction in which individual videos are output.   The multi-view display device according to claim 4, wherein the viewing angle adjustment value storage unit stores a plurality of viewing angle adjustment values for each viewing direction in which individual videos are output.   6. The multi-view display device according to claim 1, wherein the shielding position variable unit is configured by a liquid crystal transmission / shielding plate that performs light transmission / shielding control by a liquid crystal element. 7.   The multi-view according to any one of claims 1 to 6, wherein the information acquisition unit acquires light emission information by inputting a signal of a viewing angle adjustment switch for adjusting a viewing angle. Display device.   The multi-view display device according to claim 7, further comprising an adjustment video display unit that displays an adjustment video on the display unit during adjustment by the viewing angle adjustment switch.   The multi-view display device according to claim 7, further comprising an adjustment value display unit that displays an image indicating a viewing angle adjustment value on the display unit during adjustment by the viewing angle adjustment switch.   The multi-view display device according to claim 7, further comprising a viewing range adjustment unit that narrows a viewing range that is an angle range in which an image can be viewed during the adjustment by the viewing angle adjustment switch.   The multi-view display device according to claim 1, wherein the information acquisition unit acquires light emission information by inputting a driving state signal indicating a driving state of the vehicle.   The multi-view display device according to claim 1, wherein the information acquisition unit acquires light emission information by inputting a temperature signal indicating an ambient temperature. The multi-view display device according to claim 1, wherein the information acquisition unit acquires light emission information by inputting a position signal indicating a position of a viewer. The information acquisition unit acquires light emission information by inputting a visual position signal indicating the positions of the left and right eyes of the viewer,
The multi-view display device according to claim 1, wherein the shielding position varying unit varies a shielding position of the emitted light in the light shielding unit so that a viewer can view individual images with left and right eyes. A display unit capable of displaying individual images for a plurality of viewing directions on the same screen;
A light shielding part for regulating a light emission direction from the display part;
A viewing range information acquisition unit that acquires information on a viewing range indicating a viewing range that is an angle range in which the image can be viewed;
A multi-view display device comprising: a shielding position variable unit that varies a shielding position of the emitted light in the light shielding unit according to the viewing range information acquired by the viewing range information acquisition unit.   The multi-view display device according to claim 15, wherein the viewing range information is information indicating an adjustment value of the viewing range for each viewing direction in which individual videos are output. A visual range information storage unit connected to the visual range information acquisition unit for storing an adjustment value of the visual range;
16. A preset unit comprising: a visual range information output unit that outputs visual range information corresponding to the adjustment value stored in the visual range information storage unit to the visual range information acquisition unit. 16. The multi-view display device according to 16.   The multi-view display device according to claim 17, wherein the viewing range information storage unit stores a viewing range adjustment value for each viewing direction in which individual videos are output.   The multi-view display device according to claim 18, wherein the viewing range information storage unit stores a plurality of viewing range adjustment values for each viewing direction in which individual videos are output.   The visual range information acquisition unit acquires the visual range information by inputting a signal of a visual range adjustment switch for adjusting the visual range, according to any one of claims 15 to 19. Multi-view display device. A display unit capable of displaying individual images for a plurality of viewing directions on the same screen;
The viewing angle with respect to the vehicle width direction of the vehicle in which the display unit is provided, and the light emission direction from the display unit so that the viewing angle of the driver's seat side image and the viewing angle of the passenger seat side image are different A multi-view display device comprising: a light shielding portion that regulates the light intensity.   The light shielding unit restricts a light emission direction from the display unit so that a viewing angle of a passenger seat side image is larger than a viewing angle of a driver seat side image. Multi-view display device. The said light shielding part controls the emission direction of the light from the said display part so that the viewing angle of a driver | operator seat side image may become larger than the viewing angle of a passenger seat side image | video. Multi-view display device.

Images