JP2015125407A - Time-division parallax barrier type naked eye three-dimensional image display apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem with conventional time-division parallax barriers that a blink or a saccade would invite flickering of the screen by using a slit composed of four-color color filters or a stripe-patterned backlight in a rear-type parallax barrier.SOLUTION: Three-dimensional display images shown in three or more presented colors and fusing with one another are presented to right and left eyes in predetermined order on a time division basis. The presented colors vary periodically, and the time series for the right and left eyes are the same period differing in phase. Image display means has arrangement in which the presented colors are sequentially aligned, and the presented colors are shifted rightward or leftward as seen by the viewing person as light which has been transmitted by color filters selectively transmitting the presented colors. The moire effect is restrained with a diffuser sheet, and color noise is prevented with a condensing lens. Further, color breaking is prevented by varying the width of the stripe-patterned presented-color area of a backlight panel according to the viewing person's position.

Description

  The present invention alleviates the conventional problem of observing surface noise and moiré, and relaxes restrictions on the position of the observer, and a time-division type parallax barrier (parallax barrier) type autostereoscopic image display device It is related.

  There is a system using a parallax barrier as one of autostereoscopic displays that display a three-dimensional image without using glasses. As examples of this method, a parallax barrier method, a lenticular lens method, and the like are known.

  In order to prevent resolution reduction of the two-view parallax barrier stereoscopic display, Non-Patent Document 1, Non-Patent Document 2, and Non-Patent Document 3 propose a method using an active barrier capable of time-division display. This is known as a time division parallax barrier.

  In addition, the conventional time-division type parallax barrier has a viewing area in which a stereoscopic image can be correctly observed for only two viewpoints, and thus there is a problem that a region in which a correct stereoscopic image can be observed with less crosstalk is limited. there were. In order to display a stereoscopic image of three or more viewpoints, time division of three cycles or more is required.

  Japanese Patent Laid-Open No. 2012-159776 discloses a method of displaying binocular parallax by time-division of color information as means for making flicker inconspicuous when the period is long and the refresh rate is lowered. Yes. Furthermore, Non-Patent Document 4 proposes a method of applying this method to a parallax barrier.

  In the conventional time-division type parallax barrier, the width of one parallax barrier is relatively large, and the interval between the parallax barrier and the display panel is increased, thereby preventing the occurrence of moire. However, when the width of the parallax barrier is large, screen noise occurs at the end of the parallax barrier, and there is a problem that affects the image quality.

  When the width of the parallax barrier is reduced, the screen noise at the boundary of the parallax barrier becomes inconspicuous, but the space between the parallax barrier and the display panel needs to be narrowed in order to secure a sufficient viewing area. However, since the opening pattern of the parallax barrier and the opening pattern of the display panel interfere with each other and moire occurs, there is a problem that the image quality is greatly deteriorated.

JP 2012-159776 A

K. Perlin, at al., “An Autostereoscopic Display”, in Proc. 27th Annu. Conf. Comput. Graphics Interactive Tech. (Siggraph), 2000 H. J. Lee, et al., “A high resolution autostereoscopic display using a time division parallax barrier,” SID 08 Digest, pp. 81-84 (2006) J. E. Gaudreau, “Full-resolution autostereoscopic display with all-electronic tracking system,” SPIE Proc. 8288, 82881Z (2012). Zhang, Q. and Kakeya, H., “An autostereoscopic display system with four viewpoints in full resolution using active anaglyph parallax barrier,” Proc. SPIE 8648 (2013)

  The conventional time-division type parallax barrier has a problem that there are only two viewpoints in which a stereoscopic image can be correctly observed, and thus there is a problem that a region in which a correct stereoscopic image can be observed in a form with less crosstalk is limited. . Further, when the width of the parallax barrier is increased, screen noise is generated, and when the width of the parallax barrier is decreased, moire is generated. In this invention, by presenting images of four or more viewpoints in four or more time periods, an area in which a correct stereoscopic image can be observed is widened, and by reducing the width of the parallax barrier, flicker due to a low refresh rate is made inconspicuous. Furthermore, the moire pattern can be made inconspicuous by inserting a diffusion plate.

The time-division parallax barrier type autostereoscopic image display device of the present invention is a parallax barrier type autostereoscopic image display device that is a three-dimensional display image that fuses with the left and right eyes of an observer observing a predetermined viewing direction. Are displayed in order in a predetermined order in a time series having a period of 4 or more.
In particular, a backlight for displaying a plurality of the stereoscopic display images, an image display panel, and a diffuser plate provided between the backlight and the image display panel and having directivity in a direction having a predetermined polar angle of polar coordinates And display control means for controlling the image display panel,
The display control means controls the arrangement periodically arranged in time series units so as to change in time series.
The purpose of disposing a diffusion plate between the backlight and the image display panel is to suppress moire. The diffusing plate is a diffusing plate that diffuses light more in the short direction as compared to the longitudinal direction of the arrangement unit, for example.
The above time series for the right eye and the left eye are time series of the same period with a phase shift,
The image display means has an arrangement sequence periodically arranged in the right or left direction by repeating the array unit, and the shape of the array unit is vertically long and striped.
The arrangement series viewed in the right or left direction from the observer is the same as the time series. That is, when viewed from the observer, it seems to be sequentially moving right or left.

An image displayed on the parallax barrier type autostereoscopic display device is as follows:
A first display area in which the right-eye image display is displayed in a first right arrangement series, and a left-eye image display is displayed in a first left arrangement series obtained by adding a predetermined first phase difference to the first right arrangement series;
A second display area adjacent to the first display area, wherein the right-eye image display is displayed as an extension of the first left arrangement series, and the left-eye image display is displayed as an extension of the first right arrangement series;
Thus, the observation of crosstalk in which the right-eye image and the left-eye image are mixed is suppressed.

  The arrangement unit is, for example, red, green, blue, or black. In general, white and black are not classified as colors, but in the following, they are treated as color types. The color filter for white transmits visible light. As for black, even if no color filter or shutter is used, it can be considered that the light from the observer does not reach.

  The arrangement unit may include red, green, blue, and yellow. This is a primary color for reproducing a natural color. However, if the natural color is not reproduced, it can be easily imagined that there may be other color combinations.

  Regarding the combination of the above presentation colors, red and green are separated from each other by arranging any one of the four colors other than red and green between the red presentation color and the green presentation color. Is desirable.

  When the number of displayed colors in the array unit is 4, the stereoscopic image displayed in the array unit is such that two right-eye images or two left-eye images are adjacent to each other so that the observer can move. Therefore, a stereoscopic image with little crosstalk can be presented.

  The image display means has an arrangement series in which the presentation colors of the arrangement units are arranged in order and arranged in a sequence of right and left by repeating the arrangement units, and the shape of the arrangement units is vertically long and striped A configuration is also conceivable in which light from an image display panel that displays an image including the presentation color is presented to an observer through a color filter that selectively transmits each presentation color. This image display means can be classified into what is called a rear parallax barrier system.

  The image display means has an arrangement series in which the presentation colors of the arrangement units are arranged in order and arranged in a sequence of right and left by repeating the arrangement units, and the shape of the arrangement units is vertically long and striped The light from the backlight panel is modulated with image information to be displayed and is presented to an observer through a color filter that selectively transmits each presentation color.

  A light condensing means for condensing at least the vertical stripes in the short direction is disposed between the backlight and the image display panel, and the backlight and the image of the optical path from the backlight to the right or left eye of the observer By improving the parallelism between the display panels, it is possible to suppress color misregistration in the peripheral portion of the display screen.

Detection means for detecting the position and orientation information of the observer or the position information of the eyes of the observer;
Image display position control means for controlling the display position of the stereoscopic display image with the detected information,
The image display position control means can avoid the fusion collapse even when the observer moves by keeping the display position within the fusion limit for the fusion.

  According to the present invention, the area in which a correct stereoscopic image can be observed is expanded, the flickering of the screen due to the low refresh rate becomes inconspicuous, and the occurrence of moire caused by the color filter arrangement of the image display panel can be eliminated. It is possible to appreciate stereoscopic images with reduced reverse viewing and little crosstalk.

It is a figure which shows the 1st Example of the time division type | mold parallax barrier (parallax barrier (parallax barrier)) type | formula autostereoscopic image display apparatus of this invention. It is a figure which shows the time series of the operation example of 1st Example of this invention. FIG. 3 is a diagram for explaining a shape of a pixel constituting the color filter panel in the first embodiment. It is a figure which shows the example which suppresses a color noise by controlling the width | variety of the vertical stripe on the color filter panel 3b from a viewer's position and orientation information, or the observer's eye position information in a 1st Example. It is a figure which shows the example which has arrange | positioned the condensing system lens between the color filter panel 3b in the structure of FIG. 1, and the liquid crystal spatial modulator 2a in order to suppress color noise. It is a figure which shows the operation example of the time series of 2nd Example of this invention. It is a figure which shows another operation example of the time series of the 2nd Example of this invention. FIG. 10 is a diagram for explaining a problem to be solved in a third embodiment. FIG. 9 is a diagram illustrating operations of (a) a backlight and (b) an image display panel according to a fourth embodiment, and illustrates a first frame in FIG. 9 and a second frame in FIG. 10. FIG. 9 is a diagram illustrating operations of (a) a backlight and (b) an image display panel according to a fourth embodiment, and illustrates a first frame in FIG. 9 and a second frame in FIG. 10. FIG. 11 is a diagram illustrating operations of (a) a backlight and (b) an image display panel according to a fifth embodiment, and FIG. 11 illustrates a first frame and FIG. 12 illustrates a second frame. FIG. 11 is a diagram illustrating operations of (a) a backlight and (b) an image display panel according to a fifth embodiment, and FIG. 11 illustrates a first frame and FIG. 12 illustrates a second frame. It is a figure which shows the lighting arrangement | positioning of each backlight for (a) FIGS. 9 and 10 for Example 4, and (b) for FIGS. 11 and 12 for Example 5. FIG.

  Embodiments of the present invention will be described below in detail with reference to the drawings. In the following description, devices having the same function or similar functions are denoted by the same reference numerals unless there is a special reason.

  FIG. 1 shows a first embodiment of a time-division type parallax barrier type autostereoscopic image display apparatus according to the present invention, and FIG. 2 shows a time series of its operation.

  The backlight 1 normally outputs white light in the same manner as described above. However, a backlight that outputs light having a specific spectrum can be used for a special purpose. As the backlight 1, a cold cathode tube of a normal liquid crystal monitor, a light emitting diode capable of obtaining white light, electroluminescence, or the like can be used.

  The light from the backlight 1 passes through the backlight panel composed of the liquid crystal spatial modulator 3a and the color filter panel 3b performing the shutter operation, passes through the diffusion plate 8, and displays the image composed of the liquid crystal spatial modulator 2a and the color filter panel 2b. It passes through the board and is presented to the observer. In the present embodiment, the parallax barrier is an image display plate including a liquid crystal spatial modulator 2a and a color filter panel 2b. Note that the color filter panel 2b is not necessary when the parallax barrier is expressed in black and white. The arrow in the figure indicates the viewing direction of the observer.

  As the backlight 1, the liquid crystal spatial modulator 3a, and the color filter panel 3b, a normal liquid crystal display panel can be used. Further, as the liquid crystal spatial modulator 2a and the color filter panel 2b, the backlight can be removed from a normal liquid crystal display panel and used.

  When the distance between the color filter panels 2b and 3b is narrow, the moire phenomenon becomes conspicuous. In order to suppress this phenomenon, the diffusion plate 8 is inserted between the color filter panels 2b and 3b. Here, the diffusing plate 8 diffuses light in the direction along the vertical stripes of the color filter. For example, a lenticular lens sheet can be used. At this time, the diffusion plate is set so that the colors are mixed in the direction in which the transmitted colors are arranged in order, for example, the direction in which red, green, and blue are arranged.

  For this purpose, it is desirable to consider the shape of the pixels constituting the color filter panels 2b and 3b. For example, when the pixels are formed vertically as shown in FIG. 3A, mixing between different transmission colors cannot be performed by diffusion in the vertical direction, but the pixels are formed horizontally as shown in FIG. 3B. In this case, the moiré phenomenon is suppressed because mixing between different transmission colors is possible. Therefore, the pixels of the color filter panel 2b in FIG. 1 are arranged as shown in FIG. 3A and the pixels of the color filter panel 3b are arranged as shown in FIG. It can be seen that the moire phenomenon can be suppressed. 3A and 3B, from FIG. 3B, in FIG. 3B, the openings of the parallax barrier have a more uniform distribution, and uneven brightness of the screen is suppressed.

  FIG. 2A to FIG. 2D show the breakdown of one cycle of the n-th forward cycle in the color filter panels 2b and 3b. In the configuration of FIG. 2, it is possible to observe an appropriate image with four viewpoints ABCD. For these viewpoints, AC is used as the viewpoint for the first pair of left and right stereoscopic images. In addition, the BD is used as the viewpoint for the second pair of left and right stereoscopic images. This forward feed is performed by controlling the liquid crystal spatial modulators 2a and 3a by the controller 4. In the center (square box) area of the color filter panel 2b, a quarter of the A, B, C, and D images can be seen from the viewpoints A, B, C, and D in the frame of FIG. . 2B, 2C, and 2D, different quarters of images A, B, C, and D are visible from the viewpoints A, B, C, and D, respectively. Thus, it can be seen that color display on one screen is completed in four frames.

  FIG. 4 shows a configuration for always presenting a correct stereoscopic image regardless of the observation position of the observer in the first embodiment. As shown in FIG. 4, the position and orientation information of the observer or the position information of the eyes of the observer is detected by the imaging means 6, and the width of the vertical stripe on the color filter panel 3b is detected by the controller 5 using this information. To control. This control method is preferably determined according to a function set in advance so as not to cause color noise. The controller 5 also has the function of the controller 4 in addition to this.

  FIG. 5 shows a condensing lens 7 disposed between the color filter panel 3b and the liquid crystal spatial modulator 2a in the configuration of FIG. 1 for the purpose of suppressing screen noise. The condensing lens 7 may be any lens having a curvature in the direction intersecting with the vertical stripes of the color filter panel 2b, and may be a convex lens or a cylindrical lens. With this lens, when an observer is located at a position that is away from the focal length, an image can be completely correctly distributed to the right eye and the left eye without depending on the observation location.

  FIG. 6 and FIG. 7 show a second embodiment for reducing luminance unevenness by devising color expression in the present invention.

  The vertical stripes on the color filter panel 2b indicate that the spectrum transmitted by the liquid crystal spatial modulator 2a is in the same color region, for example, red, green, and blue regions are vertical stripes. In the smallest case, it can be the width of the pixel. Similarly, the vertical stripes on the color filter panel 3b indicate that the spectrum transmitted by the liquid crystal spatial modulator 3a is the same color area, for example, red, green, blue, and black areas are vertical stripes. Black is a region where light transmission is blocked. Other transmission colors include red, green, blue, and yellow. The vertical stripes on the color filter panel 2b are also red, green, blue, and yellow, and may be appropriately selected according to the color space to be expressed. .

  In this case, in order to suppress the luminance unevenness most strongly, it is desirable to arrange so that red and green are not adjacent to each other and sandwich other colors. This is because red and green have high luminance. Therefore, in the above example, an arrangement of red, black, green and blue, or an arrangement of red, blue, green and yellow is desirable.

  In this embodiment as well, as in the case of the above embodiment, the image to be displayed is displayed on the liquid crystal spatial modulator 2a. In addition to the information for each transmission color, the image for the right eye by the parallax barrier is used. Image information for the left eye and image information for the left eye must be separately incorporated and displayed.

  Therefore, as shown in FIG. 6, the positions of the transmitted colors of the color filter panels 3b and 2b are sequentially fed to the left by a quarter cycle (or to the right by a quarter cycle). In the color filter panel 3b, black, red, green, and blue are arranged from left to right. However, in the color filter panel 2b, transmission colors of red, green, and blue are used for image display. At this time, the screen roughness can be improved even in the case of progressive feeding by one-half cycle as compared with the case where no progressive feeding is performed.

  FIGS. 6A to 6D show a breakdown of one cycle of the n-th cycle of the forward feed in the color filter panels 2b and 3b. In the configuration of FIG. 6, it is possible to observe an appropriate image with four viewpoints ABCD. For these viewpoints, AC is used as the viewpoint for the first pair of left and right stereoscopic images. In addition, the BD is used as the viewpoint for the second pair of left and right stereoscopic images. This forward feed is performed by controlling the liquid crystal spatial modulators 2a and 3a by the controller 4. In the center (square box portion) area of the color filter panel 2b, red, green, and blue images can be seen from the viewpoints B, A, and D, respectively, in the frame of FIG. In the frame of FIG. 6 (b), the red, green, and blue images at the center (square enclosed portion) are visible from the viewpoints D, A, and B. 6 (c) and 6 (d), the image for the viewpoint A is sequentially displayed in green in the above-described central portion by 3 frames (a), (b), and (d) of 4 frames. , Red and blue, it can be seen that the color display of one screen is completed.

  From the above, in the present invention, by setting the width of the vertical stripe on the color filter panel 2b to one pixel, the brightness is reduced to three-quarters, but a stereoscopic image can be displayed without sacrificing the resolution. I understand.

  FIG. 7 shows an example in which the color filter panel 3b is arranged in red, blue, green, and black. This case corresponds to the case where blue and green are interchanged in the example of FIG. This is because the luminance of red and green is high, so that uneven luminance is suppressed, and it is desirable that red and green are not adjacent to each other and that other colors are sandwiched between them.

  When red, green, blue, and yellow are used as the transmission colors, the red, green, blue, and yellow colors can be adjusted by adjusting the width of the vertical stripes of the color filter panels 2b and 3b. In addition, it is easy to sequentially display the four primary colors by forward feeding along FIG. 2 by using as many black regions as necessary.

When the width of each transmission color filter region of the color filter panels 2b and 3b of the first embodiment is narrowed to one pixel of the liquid crystal display panel, the problem as shown in FIG. 8 occurs.
That is, when observing from infinity, only the image for viewpoint C is visible from viewpoint C. This is expressed as follows.
... CCCCCCCCCCCCCCCCCCCCCCCCCC ...
For example, at a finite distance of about 3 m away from the color filter panel 3b, for example, the next image other than that for the viewpoint C can be seen from the viewpoint C.
... CCCCCCCCCCCDDDDDDDDDAAAAAAAAAAABBBBBBBBBBB ...
For example, at a short distance of about 1 m from the color filter panel 3b, for example, the next image other than that for the viewpoint C can be seen from the viewpoint C.
... CCCCCDDDDDDAAAAABBBB ...

  Here, when the image for the left eye of the viewpoint D is incident on the viewpoint C, there is no great confusion. However, when the image of the viewpoint C for the right eye is incident, confusion such as collapse of the fusion occurs.

  Regarding the edge area of the display screen, even if the central portion can be observed at an appropriate distance, the same problem as the above short distance occurs. In order to solve this problem, the right-eye image display and the left-eye image display are switched at a midway point from the center of the display lower surface where the above problem occurs to the outside. That is, the right-eye image display is displayed in the first right arrangement series, and the left-eye image display is displayed in the first left arrangement series obtained by adding a predetermined first phase difference to the first right arrangement series; Adjacent to the first display area, the right-eye image display is displayed as an extension of the first left arrangement series, and the left-eye image display is provided as a second display area displayed as an extension of the first right arrangement series. is there.

FIGS. 9 and 10 show two consecutive frames in the case where the parallax barrier band is provided in a direction inclined from the vertical direction of the display panel. These are examples using three colors of RGB (= red, green, and blue) and one color corresponding to black, and display a stereoscopic image for the viewpoint AC and viewpoint BD of the viewpoint ABCD as in the above case. . Note that the diffusion plate shown in FIG. 1 is tilted in the same direction as the parallax barrier zone.
9 and 10, for example, a backlight using a liquid crystal display panel including a white light source, a liquid crystal spatial modulator, and a color filter, and an image display panel using a liquid crystal spatial modulator, for example, (a) is a backlight. (B) is a figure which shows the sub pixel position allocated to each viewpoint of the stereo image displayed on an image display panel. In the display panel in this example, vertical band-like regions are arranged in order of red, green, and blue from the left, and a plurality of sub-pixels of the same color are arranged in each band.

Here, it is assumed that the array of sub-pixels of the image display panel is D (α, β). Further, as shown in FIG. 13, n, i, and j may be used for α in the horizontal direction, and m and k may be used for β that is downward in the vertical direction. In order to show the inclination of the belt-like region, the inclination H is used in FIGS. 9 and 10 as shown in FIG.
In this case, when attention is paid to one stroke indicated by a dotted square in the image display panel in FIG. 9B, it can be seen that there are points (n ₀ , m ₀ ) satisfying the following conditions. In other words, if i, j, and k are determined using this point as a temporary origin,
In D (n ₀ + j, m ₀ ), j = 0, 1, and 2 are RGB regions, respectively, and an AAA viewpoint image is displayed. Also,
ABCD viewpoint images are displayed for i = 0, 1, 2, and 3 of D (n ₀ + 3i + j, m ₀ ). More general,
For D (n ₀ + 3i + j, m ₀ + k), using the slope H above,
In the case of mod (j, 3) + [k / H] = 0, 1, 2, and 3, an image of each viewpoint of ABCD is displayed. Here, [k / H] is a maximum integer not exceeding k / H.

As for the backlight, when the liquid crystal spatial modulator to be used is the same as that of the image display panel, it is desirable to shift it to the left or right by about half of the subpixel. As for the lighting position, the position of the image display panel is as follows. That means
When the display of the two closest red subpixels is for the B viewpoint and the C viewpoint, the red subpixel of the backlight corresponding to the position sandwiched between the two red subpixels is turned on. Like this,
When the display of the two closest green (or blue) subpixels is for the B viewpoint and the C viewpoint, the backlight green (corresponding to the position between the two green (or blue) subpixels ( Or blue) sub-pixels.

  FIG. 10 shows assignment in the next frame. This assignment is made by shifting the image display panel and the backlight to the left or right by 4 subpixels from the assignment in FIG. Subsequently, the third frame shifted by 4 pixels and the fourth frame shifted further by 4 pixels from the third frame are sequentially displayed, and the period 4 for returning to the first frame is presented.

FIGS. 11 and 12 show an example in which the parallax barrier band is provided in the direction inclined to the left from the vertical direction of the display panel, with vertical: horizontal = 3: 1. This ratio is G as shown in FIG. In this case, there is the next point (n ₀ , m ₀ ). That means
D (n ₀ + j, m ₀ + k), where k = 0, 1, 2
RGB for j = 0, −1, −2, and for the same j,
ABCD viewpoint images are displayed at j = 0, -1, -2, and -3.
In general,
(Mod (j, 4) -4) as j above,
By considering mod (k, G) as the above k, the array of FIG. 11 can be expressed.

As for the backlight, when the liquid crystal spatial modulator to be used is the same as that of the image display panel, it is desirable to shift it to the left or right by about half of the subpixel. As for the lighting position, the position of the image display panel is as follows. That means
When the display of the two nearest red (or green or blue) subpixels is for the B viewpoint and the C viewpoint, the back corresponding to the position between the two red (or green or blue) subpixels Turn on the red (or green or blue) subpixel of the light. Here, “or” in parentheses are associated with each other.

  FIG. 12 shows assignment in the next frame. This assignment is made by shifting the image display panel and the backlight to the left by 9 subpixels or to the right by 3 subpixels from the assignment in FIG. Subsequently, the third frame shifted by 9 pixels and the fourth frame shifted further by 9 pixels from the third frame are displayed in order, and the period 4 for returning to the first frame is presented.

  In the example of FIGS. 9 to 12 described above, the array arranged in the order of RGB is shown. However, by exchanging G and B, assignment of another array can be easily realized.

  In place of the backlight and the image display board of the first embodiment, similarly, by using a self-luminous display board such as an organic EL display board instead of the backlight and the backlight panel of the second embodiment, the configuration is further improved. It can be simple.

DESCRIPTION OF SYMBOLS 1 Backlight 2a Liquid crystal spatial modulator 2b Color filter panel 3a Liquid crystal spatial modulator 3b Color filter panel 4 Controller 5 Controller 6 Imaging means 7 Condensing system lens 8 Diffusion plate 10 Viewer

Claims (8)

In a parallax barrier type autostereoscopic image display device, a plurality of stereoscopic display images to be fused with each other are sequentially presented in a predetermined order in a time series of four or more periods to the left and right eyes of an observer observing a predetermined gaze direction. An autostereoscopic display device,
A backlight for displaying a plurality of the stereoscopic display images, an image display panel, and a diffuser plate provided between the backlight and the image display panel and having directivity in a direction having a predetermined polar angle of polar coordinates Image display means and display control means for controlling the image display panel;
The display control means controls the array arranged periodically in time series units so as to change in time series.
The above time series for the right eye and the left eye are time series of the same period with a phase shift,
The image display means has an arrangement sequence periodically arranged in the right or left direction by repeating the array unit, the shape of the array unit is vertically long and striped,
The arrangement series viewed from the observer in the right or left direction in order is the same as the time series,
A time-division type parallax barrier autostereoscopic image display device characterized by the above. An image displayed on the parallax barrier type autostereoscopic display device is as follows:
A first display area in which the right-eye image display is displayed in a first right arrangement series, and a left-eye image display is displayed in a first left arrangement series obtained by adding a predetermined first phase difference to the first right arrangement series;
A second display area adjacent to the first display area, wherein the right-eye image display is displayed as an extension of the first left arrangement series, and the left-eye image display is displayed as an extension of the first right arrangement series;
By having
2. The time-division parallax barrier autostereoscopic image display device according to claim 1, wherein crosstalk is suppressed.   3. The time-division parallax barrier autostereoscopic image display device according to claim 1, wherein the arrangement units are red, green, blue, and black.   3. The time-division parallax barrier autostereoscopic image display device according to claim 1, wherein the arrangement unit includes red, green, blue, and yellow.   The stereoscopic image displayed in the arrangement unit when the number of colors presented in the arrangement unit is four, wherein two right-eye images or two left-eye images are adjacent to each other. 5. A time-division parallax barrier autostereoscopic image display device according to any one of 4 above.   The image display means includes an image display panel having an arrangement series in which the presentation colors of the arrangement units are arranged in order and arranged periodically in the right or left direction by repeating the arrangement units, and the shape of the arrangement units is The light from the backlight panel, which is vertically long and striped, is modulated with image information to be displayed and presented to an observer through a color filter that selectively transmits each of the displayed colors. The time-division type parallax barrier type autostereoscopic image display device according to any one of claims 1 to 5. The backlight and display of the optical path from the backlight to the viewer's right eye or left eye are arranged at least on the question of the backlight and the image display panel by condensing means for condensing in the lateral direction of the vertically long stripes. The time-division parallax barrier autostereoscopic image display device according to any one of claims 1 to 6, characterized in that parallelism between panels is improved. Detection means for detecting the position and orientation information of the observer or the position information of the eyes of the observer;
Image display position control means for controlling the display position of the stereoscopic display image with the detected information,
8. The image display position control means according to claim 1, wherein the image display position control means avoids collapse of the fusion image by keeping the display position within a fusion limit. Time-division parallax barrier autostereoscopic image display device.

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