JP2007086231A - Display apparatus, display method and display control apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To drasically reduce a cross-talk image, that leaks from an image displayed on one screen to the view field of another screen, in a display apparatus for displaying images on screen viewable from different view fields formed on a common display section. <P>SOLUTION: In the display apparatus, a first image IM1 and a second image IM2 are respectively viewed from different view fields on the common display section, the first image IM1 and the second image IM2 are alternately displayed, and when either of the first and the second images IM1 and IM2 is displayed, canceling images AM1 and AM2 are displayed for canceling the cross-talk image that leaks from one screen to the view field of the other screen. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a so-called dual view display device capable of visually recognizing different images from different directions on a common display screen.

As a so-called dual view display in which different images can be viewed from different directions on a common display screen, for example, a parallax barrier is provided in front of the liquid crystal panel, and the light traveling direction from the backlight is distributed for each pixel. Thus, there is known one that can display different information (images) on the left and right (see, for example, Patent Document 1). By mounting such a display device on the vehicle, the passenger in the passenger seat can watch other images such as a television while the driver is watching the navigation image.
JP 2005-78080 A

  By the way, in the display device as described above, so-called crosstalk occurs in which both the left and right images are mixed depending on the direction of viewing the display screen. For example, if the TV image light on the passenger seat side leaks to the driver seat side and overlaps the navigation image while the driver is watching the navigation image, the driver may not be able to clearly identify the navigation information.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide crosstalk between two images in a display device capable of visually recognizing different images from different fields of view on a common display screen. It is to provide a display device in which the visibility of images can be improved.

A display device according to the present invention is a display device that displays a first image and a second image on first and second screens that can be viewed from different fields of view formed in a common display unit. And the second image are alternately displayed on the first or second screen, and when the first or second image is displayed, the image is leaked from one screen to the other screen. A cancel image for canceling the crosstalk image is displayed on the other screen.
According to this configuration, since one of the first and second images is not displayed while the other image is displayed, crosstalk between the first image and the second image is greatly reduced, The crosstalk image leaking from one screen to the field of view of the other screen is canceled out by the cancel image, so that the crosstalk can be further reduced.

In the above configuration, it is possible to employ a configuration in which the direction in which the crosstalk image is canceled within the field of view is adjusted based on the signal level of the cancel image.
According to this configuration, by adjusting the signal level (luminance level) of the cancellation image, the direction in which the crosstalk image is canceled within the field of view can be adjusted. The visibility of the image in the visual field can be optimized.

In the above configuration, data for forming a cancel image in association with the direction in which the crosstalk image is canceled is stored in advance in the storage unit, and data corresponding to the direction in which the crosstalk image is to be canceled is stored in the storage unit. A configuration that reads out and forms a cancel image can be adopted.
According to this configuration, when the user sets a direction in which the crosstalk image should be canceled, a cancel image corresponding to the set value is formed, and the direction in which the crosstalk image is to be canceled is adjusted.

In the above configuration, a configuration in which the direction in which the crosstalk image is canceled within the field of view of the first and second images is independently adjusted can be employed.
According to this configuration, the visibility of the image can be optimized independently in the field of view of the first image and in the field of view of the second image.

In the above configuration, a configuration in which a monochromatic image is formed by canceling the crosstalk image and the cancel image can be adopted, and a configuration in which an achromatic image is formed by canceling the crosstalk image and the cancel image can be employed.
According to this configuration, it is possible to suppress a change in the hue of the image seen from the direction in which the crosstalk image is canceled, and to maintain the image quality. Further, by using an achromatic color, it is possible to further suppress a change in hue as compared with a chromatic color.

In the above configuration, a configuration in which a single color image is displayed on the first or second screen between the display of the first image and the display of the second image can be employed.
According to this configuration, it is possible to suppress flickering of the image due to various reaction delays and sudden changes in the image in the operation of switching between the first image and the second image.

  A display method according to the present invention is a display method for displaying a first image and a second image on first and second screens that can be viewed from different visual fields formed on a common display unit. And the second image are alternately displayed on the first or second screen, and when the first or second image is displayed, the image is leaked from one screen to the other screen. A cancel image for canceling the crosstalk image is displayed on the other screen.

  A display control device according to the present invention is a display control device for displaying first and second images on first and second screens that can be viewed from different visual fields formed on a common display unit, respectively. The first image and the second image are alternately displayed on the first or second screen, and when the first or second image is displayed, the screen is displayed from one screen to the other. A cancel image for canceling out the crosstalk image leaking into the visual field is displayed on the other screen.

  ADVANTAGE OF THE INVENTION According to this invention, in the display apparatus which can visually recognize each different image from a different visual field on a common display screen, the crosstalk between two images can be reduced significantly and the visibility of an image can be improved.

DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, exemplary embodiments of the invention will be described with reference to the accompanying drawings.
FIG. 1 is a diagram for explaining a basic configuration of a dual view display device according to an embodiment of the present invention.
As shown in FIG. 1, the display device includes a display control unit 10 as a display control device, a display unit 100, and the like.
The display control unit 10 is supplied with the image data (image signal) DT1 from the first image source 300A and the image data (image signal) DT2 from the second image source 300B. The image data (image signal) ADT composed of the image data DT 1 and DT 2 is output to the common display unit 100. A specific configuration of the display control unit 10 will be described later.
The first and second image sources 300A and 300B include a camera, a TV receiving unit, a DVD playback unit, an HD playback unit, a navigation unit, and the like, which will be described later.

  As will be described later, the display unit 100 includes a liquid crystal panel, a backlight, a parallax barrier, and the like, and allows an observer OBR to view the first image IM1 based on the first image data DT1 from the right direction. The second image IM2 based on the second image data DT2 is displayed so that the observer OBL viewing from the left can view it. That is, the display unit 100 is formed with a screen (first screen) that can be viewed from the field of view on the observer OBR side and a screen (second screen) that can be viewed from the field of view on the observer OBL side. The first and second images IM1 are displayed on the screen, respectively. A specific configuration of the display unit 100 will be described later.

FIG. 2 is an external perspective view of a vehicle display device according to an embodiment of the present invention, and FIG. 3 is a perspective view showing an example of mounting the vehicle display device according to an embodiment of the present invention on a vehicle.
The apparatus main body 100A of the vehicle display device shown in FIG. 2 is built in the dashboard portion of the vehicle, and the display unit 100 is disposed between the driver seat DS and the passenger seat AS as shown in FIG. . The display unit 100 is provided with an operation unit 150 for manually operating the display device.
In the case shown in FIG. 3, the occupant seated in the driver seat DS is the observer OBR, and the occupant seated in the passenger seat AS is the observer OBL. And these passengers are different 1st image IM1 (henceforth a D seat image hereafter) and 2nd image IM2 (henceforth hereafter) displayed on the display part 100 from the driver's seat DS side or the passenger seat AS side, respectively. , Also called P seat image).

  4 to 10 are diagrams showing a specific configuration of the display device according to the embodiment of the present invention, where FIG. 4 is a functional block diagram of the display device, and FIG. 5 is a functional block diagram showing a configuration of the control unit. 6 is a functional block diagram of the first and second image quality adjustment circuits, FIG. 7 is a diagram for explaining the sectional structure and operation of the liquid crystal panel, FIG. 8 is a front view of the liquid crystal panel, and FIG. A circuit diagram and FIG. 10 are diagrams showing a configuration of the image output unit 70.

  As shown in FIG. 4, the display device includes a display unit 100, a control unit 20, a distribution circuit 30, first and second image quality adjustment circuits 50A and 50B, an image output unit 70, and the like. The display control unit 10 includes a control unit 20, a distribution circuit 30, first and second image quality adjustment circuits 50A and 50B, an image output unit 70, and the like.

  As shown in FIG. 5, the control unit 20 includes a processor (CPU) 21, an interface 22, a ROM 23, a RAM 24, and the like, and comprehensively controls the display device according to a program stored in the ROM 23. The specific control by the control unit 20 will be described later.

As shown in FIG. 4, the control unit 20 includes a camera 310 that captures the surroundings of the vehicle as a supply source that is mounted on the vehicle and supplies images and sounds, a CD / MD (compact disc) that reproduces music and images / Mini-disc) Music information and images from the reproduction unit 320, the radio reception unit 330 that receives radio broadcast waves from the antenna, the TV reception unit 340 that receives TV broadcast waves from the antenna via the selector 341, and a DVD (digital versatile disc). The DVD playback unit 350 for playing back images, the HD playback unit 360 for playing back image and music information recorded on HD (hard disk), the road information received by the VICS information receiving unit 371, and the geographic information received by the GPS information receiving unit 372 Connected to a navigation unit 370 or the like that outputs a map or route guidance image based on To control these together to exchange chromatography data.
In addition, the control unit 20 transmits and receives infrared signals and wireless signals to and from the external memory 140 that stores various data, the operation unit 150 for operating the display device, and the remote control 171 for operating the display device by remote control. A remote control transmission / reception unit 170, a brightness detection sensor 190 configured to detect brightness in the vehicle by being configured with a light switch or a light sensor provided in the vehicle, a pressure sensitive sensor provided in a driver seat or a passenger seat, and the like. An occupant detection sensor 200 or the like for detecting the vehicle is connected, and the control unit 20 can perform various controls based on various data obtained therefrom.

  As shown in FIG. 4, the distribution circuit 30 is supplied from the camera 310, the CD / MD playback unit 320, the radio reception unit 330, the TV reception unit 340, the DVD playback unit 350, the HD playback unit 360, the navigation unit 370, and the like. The audio data and image data to be processed are distributed to the audio adjustment circuit 60, the first image quality adjustment circuit 50A, or the second image quality adjustment circuit 50B in accordance with a control command from the control unit 20.

  The audio adjustment circuit 60 adjusts the audio data supplied from the distribution circuit 30 and outputs it to the speaker 61 as shown in FIG.

  As shown in FIG. 6, the first and second image quality adjustment circuits 50A and 50B are each composed of a contrast adjustment unit 51, a luminance adjustment unit 52, a color tone adjustment unit 53, a gamma value adjustment unit 54, and the like. The image quality (contrast, brightness, tone, and gamma value) of the first and second image data (image signal) is adjusted in accordance with the control command from.

  As shown in FIG. 3, the display unit 100 includes a liquid crystal panel 110, a backlight 120 that illuminates illumination light from the back side of the liquid crystal panel 110, a touch panel 130 for inputting a signal for operating the display device, and the like. . Although not shown, the touch panel 130 is formed in a transparent sheet shape and attached to the front surface of the liquid crystal panel 110.

As shown in FIG. 7, the liquid crystal panel 110 is a color filter substrate having a polarizing plate 111, a TFT (Thin Film Transistor) substrate 112, a liquid crystal layer 113, and RGB pixels arranged in order from the backlight 120 side. 114, a parallax barrier 115, a glass plate 116, a polarizing plate 117, and the like.
As shown in FIGS. 7 and 8, the liquid crystal panel 110 has a display screen in which, for example, 800 pixels in the horizontal direction and 480 pixels in the vertical direction are arranged. Pixels 118 (hereinafter also referred to as passenger seat side display pixels 118) and right side display pixels 119 (hereinafter also referred to as driver seat side display pixels 119) are alternately arranged.

As shown in FIGS. 7 and 8, the parallax barrier 115 is formed in a stripe shape and includes a shielding part and a translucent part. The shielding part is formed by the adjacent left display pixel 118 and right display pixel 119. Arranged between. By disposing the parallax barrier 115 on the front surface of the color filter substrate 114, the illumination light transmitted through the left display pixel 118 selectively passes through the light-transmitting part of the parallax barrier 115 selectively toward the left side, and is displayed on the right side. Of the illumination light transmitted through the pixel 119, only the illumination light directed toward the right side selectively passes through the light transmitting portion of the parallax barrier 115. As a result, as shown in FIG. 7, the first image IM1 can be viewed from the right side (driver's seat side) of the liquid crystal panel 110, and the second image IM2 can be viewed from the left side (passenger seat side). ing.
The parallax barrier 115 can be the same as those disclosed in JP-A-10-123461 and JP-A-11-84131.

As shown in FIG. 9, the TFT substrate 112 includes a data line driving circuit DR1, a scanning line driving circuit DR2, scanning lines SCL arranged in a vertical direction, data lines DTL arranged in a horizontal direction, scanning lines SCL and data lines. A TFT element EL formed in each region intersecting with the DTL, a pixel electrode EP formed corresponding to the TFT element EL, and the like, and each region surrounded by the scanning line SCL and the data line DTL includes a subpixel SBP. The sub-pixels SBP in each column along the data line DTL are alternately assigned to the left display pixel 118 and the right display pixel 119.
The data line driving circuit DR1 is controlled in driving timing by a liquid crystal panel driving unit 74 described later, and controls the voltage applied to the pixel electrode EP.
The scanning line driving circuit DR2 selectively scans the TFT element EL by controlling the driving timing by a liquid crystal panel driving unit 74 described later.

  The memory 140 is configured by, for example, an electrically rewritable nonvolatile memory such as a flash memory or a battery-backed volatile memory, and stores data necessary for control by the control unit 20.

  As shown in FIG. 10, the image output unit 70 includes frame memories 510A and 510B, cancel image calculation circuits 520A and 520B, auxiliary frame memories 530A and 530B, synthesis circuits 540A and 540B, a liquid crystal panel drive unit 74, a changeover switch SW1, and the like. It is composed of

  In the frame memories 510A and 510B, for example, the first and second image data DT1 and DT2 adjusted in image quality in the first and second image quality adjustment circuits 50A and 50B, respectively, are written. The first and second image data DT1 and DT2 are image signals (video signals) from the TV receiving unit 340, the DVD reproducing unit 350, the navigation unit 370, and the like, for example, frames at an input rate of 1/60 seconds. It is written in the memories 510A and 510B.

The cancel image calculation circuit 520A receives the first image data DT1 and displays the first image (D seat image) from the first image (D seat image) to the second image (P seat image). ) To calculate a cancel image signal for forming a cancel image for canceling out the crosstalk image leaking to the visual field.
The cancel image calculation circuit 520B receives the second image data DT2, and cancels the crosstalk image that leaks from the second image to the field of view of the first image when the second image is displayed. The cancel image signal for forming the image is calculated.
Here, the crosstalk image is a leakage component of the D seat image IM1 that leaks into the field of view of the passenger seat side screen while displaying the D seat image IM1, and a field of view of the driver seat side screen while displaying the P seat image IM2. The leakage component of the leaking P seat image IM2 is meant.
Specifically, the cancel image calculation circuits 520A and 520B calculate complementary color image signals for forming complementary color images of the D seat image and the P seat image, respectively, from the first image data DT1 and the second image data DT2. . The complementary color image signal is formed corresponding to each pixel. At this time, a cancel image (complementary color image signal) is calculated and generated so that an achromatic image is formed by cancellation with the crosstalk image.
Further, the cancel image calculation circuits 520A and 520B receive the control commands S1 and S2 from the control unit 20 and adjust the level of the complementary color image signal (cancel image signal).

  The auxiliary frame memories 530A and 530B store the cancel image signals (data) formed by the cancel image calculation circuits 520A and 520B, respectively. The auxiliary frame memories 530A and 530B have the same storage capacity as the frame memories 510A and 510B.

  The combining circuits 540A and 540B are configured by frame memories for one image (the sum of the P-seat image and the D-seat image) displayed on the liquid crystal panel, respectively, and the first and the first held in the frame memories 510A and 510B. The second image data DT1 and DT2 are combined with the cancel image data for one frame held in the auxiliary frame memories 530A and 530B.

The changeover switch SW1 is a switch that selectively connects the movable contact C1 and the fixed contacts C2 and C3 at a predetermined frame rate (for example, 1/120 seconds) according to the synchronization signal SC input from the control unit 20. is there.
When the movable contact C1 is connected to the fixed contact C2, the image data DT1 for one image (one frame) held in the frame memory 510A and the cancel image data for one frame held in the auxiliary frame memory 530A are obtained. The synthesized circuit 540A synthesizes it as liquid crystal panel drive data, and outputs it to the liquid crystal panel drive unit 74.
When the movable contact C1 is connected to the fixed contact C3, the image data DT1 for one image (one frame) held in the frame memory 510B and the cancel image data for one frame held in the auxiliary frame memory 530B are obtained. The synthesized circuit 540B synthesizes it as liquid crystal panel drive data and outputs it to the liquid crystal panel drive unit 74.

When the movable contact C1 is connected to the fixed contact C2, the liquid crystal panel drive unit 74 uses the driver seat (D seat) based on the data held in the combining circuit 540A, that is, the data held in the frame memory 510A. ) For driving the pixels of the liquid crystal display panel 110 for displaying the image on the side, and for displaying the image on the passenger seat (P seat) side based on the cancel image data held in the auxiliary frame memory 530A The pixels of the liquid crystal display panel 110 are driven.
Further, when the movable contact C1 is connected to the fixed contact C3, the liquid crystal panel driving unit 74 determines the passenger seat (based on the data held in the combining circuit 540B, that is, the data held in the frame memory 510B). Driving the pixels of the liquid crystal display panel 110 for displaying the image on the (P seat) side, and displaying the image on the driver seat (D seat) side based on the cancel image data held in the auxiliary frame memory 530B. For this purpose, the pixels of the liquid crystal display panel 110 are driven.
In the liquid crystal panel driving unit 74, data rearrangement processing corresponding to each pixel of the liquid crystal panel 110 is performed.

Next, processing for canceling the crosstalk image by the cancel image will be described with reference to FIG.
In the image output unit 70, as shown in FIG. 11, the image data of the D seat image IM1 and the P seat image IM2 are written in the frame memories 510A and 510B at an input rate of 1/60 seconds.
The cancel image calculation circuits 520A and 520B generate image data of the cancel images AM1 and AM2 as shown in FIG. 11 based on the image data written in the frame memories 510A and 510B, respectively, to the auxiliary frame memories 530A and 530B. Write.

  As shown in FIG. 11, the liquid crystal panel driving unit 74 alternately outputs the image signal of the D seat image IM1 and the image signal of the P seat image IM2 to the display unit 100 at a frame rate of 1/120 seconds. When the image signal of the seat image IM1 is output, the image signal of the cancel image AM1 is simultaneously output to the display unit 100, and when the image signal of the P seat image IM2 is output, the image signal of the cancel image AM2 is simultaneously displayed. Output to 100.

Thus, the D seat image IM1 and the P seat image IM2 are alternately displayed on the display unit 100 at a frame rate of 1/120 seconds.
Further, when the D seat image IM1 is displayed on the display unit 100, the crosstalk image of the D seat image IM1 is offset by the cancel image AM1 overlapping the crosstalk image of the D seat image IM1, and the P seat image When IM2 is displayed on the display unit 100, the cancel image AM2 overlaps the crosstalk image of the P seat image IM2, thereby canceling the crosstalk image of the P seat image IM2. As a result, the crosstalk between the D seat image IM1 and the P seat image IM2 is significantly reduced.

FIG. 12 is a graph showing the luminance distribution observed in the passenger seat side visual field and driver seat side visual field when the P seat image IM2 (or D seat image IM1) is displayed at a predetermined luminance.
As can be seen from the luminance distribution (1) of the P seat image IM2 shown in FIG. 12, the P seat image IM2 is distributed not only in the passenger seat side view but also in the driver seat side view. Become. Further, the brightness of the P seat image IM2 in the driver's seat side field of view varies according to the angle (direction) at which the screen is observed. The same applies to the luminance distribution (2) of the D seat image IM1. In FIG. 12, the luminance levels of the D-seat image IM1 and the P-seat image IM2 are maximum in a direction of approximately 30 degrees in the passenger seat side view and the driver seat side view. It is prescribed by etc.

  Here, when the level CLV of the image obtained by adding the cancel image AM2 to the crosstalk image of the P seat image IM2 is as shown in FIG. 12, the crosstalk image is canceled at the angles C1, C2, and C3 (hereinafter, referred to as “CLV”). This angle is called the crosstalk cancellation angle. At the crosstalk cancellation angles C1, C2, and C3, an achromatic image is observed.

  When the signal level of the cancel image AM2 is changed and the above-described level CLV is changed as shown in FIG. 13, the crosstalk image is canceled at the crosstalk cancel angle C4. In other words, by changing the signal level of the cancel image AM2, it is possible to adjust the direction in which the crosstalk image is canceled within the visual field on the driver seat side.

Next, an example of the adjustment process of the crosstalk cancellation angle by the control unit 20 will be described with reference to the flowchart shown in FIG. This process is repeatedly executed at a predetermined cycle during image display.
It is assumed that various data for forming a cancel image associated with the crosstalk cancellation angle is stored in the memory 140 in advance.
First, the control unit 20 determines whether to change the crosstalk cancellation angle on the driver's seat side (step ST1). For example, when the user requests to change the crosstalk cancellation angle using the operation unit 150 or the touch panel 130, the crosstalk cancellation angle on the driver's seat side set by the user is acquired (step ST2), and the crosstalk is stored from the memory 140. Data for forming a cancel image corresponding to the cancel angle is read (step ST3).
The control unit 20 outputs a control command S1 based on the data read from the memory 140 to the cancel image calculation circuit 520A (step ST4). Thereby, the crosstalk cancellation angle of the D seat image IM1 is adjusted.

Next, the control unit 20 determines whether to change the crosstalk cancellation angle on the passenger seat side (step ST5). When changing, the driver's side crosstalk cancellation angle set by the user is acquired (step ST6), and data for forming a cancel image corresponding to the crosstalk cancellation angle is read from the memory 140 (step ST7). ).
The control unit 20 outputs a control command S2 based on the data read from the memory 140 to the cancel image calculation circuit 520B (step ST4). Thereby, the crosstalk cancellation angle of the P seat image IM2 is adjusted.
In this way, by forming the cancel image on the driver's seat side and the cancel image on the passenger's seat side with independent circuits, the directions in which the crosstalk images are canceled in the driver's seat side and the passenger's side field of view are independent of each other. Can be adjusted.

In the above embodiment, the case where the cancel image is displayed in both the D seat image IM1 and the P seat image IM2 has been described. However, the present invention is not limited to this. For example, the D seat image IM1 and It is also possible to display a cancel image only for one of the P seat images IM2 and display an achromatic color image such as a black image for the other.
In addition, by forming cancellation images of different levels using the same method for each of the three primary colors, the crosstalk can be made into a single color (chromatic color), and this process seems to make the entire screen lightly colored with that single color. It is also possible to make the display different.

  In the above embodiment, the case where the cancel image is displayed when displaying either the D seat image IM1 or the P seat image IM2 has been described. However, the present invention is not limited to this. Between the display of the seat image IM2, for example, as shown in FIG. 15, it is also possible to display a monochromatic image made up of a black image or the like. Specifically, as shown in FIG. 15, black images BL are displayed on the P seat side and the D seat side immediately before displaying the D seat image IM1 and the P seat image IM2. Thereby, the flickering of the image accompanying the various reaction delays in the operation | movement which switches a D seat image and a P seat image, and the rapid change of an image can be suppressed. Note that the display timing of the black image BL shown in FIG. 15 is an example and can be changed as appropriate. Further, it is possible to insert the black image BL only in one of the D seat image and the P seat image. Furthermore, not only a black image but also a monochromatic image such as gray can be used.

  The above embodiment is a preferred embodiment of the present invention. However, the present invention is not limited to this, and various modifications can be made without departing from the scope of the present invention.

It is a figure for demonstrating the basic composition of the display apparatus which concerns on one Embodiment of this invention. It is an external appearance perspective view of a display apparatus. It is a perspective view which shows the example of application to the vehicle of a display apparatus. It is a functional block diagram which shows the structure of a display apparatus. It is a functional block diagram which shows the structure of a control part. It is a functional block diagram which shows the structure of the 1st and 2nd image quality adjustment circuit. It is a figure which shows the cross-section of a display part. It is a front view of a liquid crystal panel. It is a circuit diagram of a TFT substrate. It is a functional block diagram which shows the structure of an image output part. It is a figure for demonstrating the relationship between an input image and an output image. It is a graph which shows the luminance distribution observed by the passenger seat side visual field and the driver's seat side visual field when P seat image IM2 is displayed with predetermined luminance. It is a graph for demonstrating the method of adjusting a crosstalk cancellation angle. It is a flowchart for demonstrating an example of the process in a control part. It is a figure for demonstrating the display method which concerns on other embodiment of this invention.

Explanation of symbols

10. Display control unit (display control device)
DESCRIPTION OF SYMBOLS 20 ... Control part 30 ... Distribution circuit 50A ... 1st image quality adjustment circuit 50B ... 2nd image quality adjustment circuit 60 ... Audio | voice adjustment circuit 70 ... Image output part 100 ... Display part 110 ... Liquid crystal panel 120 ... Backlight 130 ... Touch panel 140 ... Memory 150 ... Operation unit 170 ... Remote control transmission / reception unit 190 ... Brightness detection sensor 200 ... Occupant detection sensor 300A, 300B ... Image source 310 ... Camera 320 ... CD / MD playback unit 330 ... Radio reception unit 340 ... TV reception unit 350 ... DVD playback unit 360 ... HD playback unit 370 ... navigation units 510A, 510B ... frame memories 520A, 520B ... cancelled image arithmetic circuits 530A, 530B ... auxiliary frame memory SC ... synchronization signals S1, S2 ... control command SW1 ... switch DS ... running Seat AS ... Passenger seat IM1, IM2 ... First and second Second image AM1, AM2 ... Canceled image CLV ... Level of image obtained by adding cancel image to crosstalk image

Claims (9)

A display device that displays first and second images on first and second screens that can be viewed from different fields of view formed on a common display unit,
The first image and the second image are alternately displayed on the first or second screen, and when the first or second image is displayed, from one screen on which the image is displayed A display device, wherein a cancel image for canceling out a crosstalk image leaking into the field of view of the other screen is displayed on the other screen.   The display device according to claim 1, wherein a direction in which the crosstalk image is canceled in the visual field is adjusted based on a signal level of the cancel image.   Data for forming the cancel image is stored in advance in a storage unit in association with the direction in which the crosstalk image is canceled, and data corresponding to the direction in which the crosstalk image is to be canceled is stored in the storage unit. The display device according to claim 2, wherein the cancel image is formed by reading.   4. The display device according to claim 2, wherein the direction in which the crosstalk image is canceled is adjusted independently within the field of view of the first and second screens.   The display device according to claim 1, wherein a monochrome image is formed by canceling out the crosstalk image and the cancel image.   The display device according to claim 5, wherein an achromatic image is formed by canceling out the crosstalk image and the cancel image.   7. The monochromatic image is displayed on the first or second screen between the display of the first image and the display of the second image. 7. Display device. A display method for displaying first and second images on first and second screens that can be viewed from different fields of view formed on a common display unit,
The first image and the second image are alternately displayed on the first or second screen, and when the first or second image is displayed, from one screen on which the image is displayed A display method, comprising: displaying a cancel image for canceling a crosstalk image leaking in a field of view of the other screen on the other screen. A display control device that displays first and second images on first and second screens that can be viewed from different fields of view formed on a common display unit,
The first image and the second image are alternately displayed on the first or second screen, and when the first or second image is displayed, from one screen on which the image is displayed A display control apparatus for displaying a cancel image for canceling a crosstalk image leaking in a field of view of the other screen on the other screen.

Images