JP4098612B2 - 3D image display device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a display device capable of displaying a three-dimensional image.
[0002]
[Prior art]
As one of techniques for displaying a three-dimensional image, an integral photography system (hereinafter referred to as an IP system) is known. In the IP system, a plurality of two-dimensional image display pixels arranged two-dimensionally constitute individual three-dimensional image display pixels, and a window portion is provided on the front side corresponding to the three-dimensional image display pixels. Place the specified mask.
[0003]
According to such a configuration, if the number of two-dimensional image display pixels included in one three-dimensional image display pixel is sufficiently large and the size of the window is sufficiently small, the two-dimensional image display pixel (or The display light emitted from the pixel group is distributed almost uniformly on the front side of the screen, and the observer naturally sees the display light from the two-dimensional image display pixels for the right and left eyes, so that the 3D image is displayed. Visible. In addition, since the display light is uniformly distributed, natural motion parallax is also obtained, which helps to visually recognize the three-dimensional image.
[0004]
Furthermore, if the 3D image display pixels can be made higher in definition and the number of light rays can be increased sufficiently, the display light from the 2D image display pixels will in principle reconstruct a 3D image in real space. .
[0005]
Therefore, if the two-dimensional image display pixels are configured to drive all the two-dimensional image display pixels so as to switch according to the position of viewing the two-dimensional image obtained by photographing the object from different directions, When the number of light rays is small, based on binocular parallax and motion parallax, when the number of light rays is large, a three-dimensional image is reconstructed in real space, thereby allowing the observer to visually recognize the three-dimensional image.
[0006]
As another technique for displaying a three-dimensional image, a multi-view type is known. The multi-view system differs from the IP system in providing a condensing point at the viewing distance. By providing a condensing point, even when the number of 2D image display pixels is small, the 2D image display pixels can be viewed efficiently, but the observer is basically based only on binocular parallax. Thus, the 3D image is recognized, and the switching of the 2D image according to the viewing position becomes discontinuous. Although it is possible to view a more natural three-dimensional image by making the interval between the condensing points sufficiently narrow and to add motion parallax, the current number of pixels is compared with the IP method. It cannot be said that natural three-dimensional images have been realized. As described above, the multi-lens system adopts the same configuration as that of the IP system, but the design guidelines for light rays are different.
[0007]
As described above, according to the IP method or the multi-view method, a more natural three-dimensional image can be displayed with a display device having a very simple structure even with the current number of pixels. In addition, in the IP system and the multi-view system, the observer does not need to wear special glasses. However, these three-dimensional image display methods have several problems.
[0008]
In the IP method and the multi-view method, when the viewing area (viewing angle at which a correct three-dimensional image can be viewed) is constant, the larger the number of two-dimensional images displayed simultaneously (hereinafter referred to as the number of parallaxes), The change in the three-dimensional image accompanying the movement becomes smooth.
[0009]
However, in order to increase the number of parallaxes, the number of two-dimensional image display pixels included in each three-dimensional image display pixel must be increased. In addition, there is a limit to reducing the size of the two-dimensional image display pixel due to the problem of the wiring technology and the aperture ratio. Furthermore, the overall dimensions of the display device are also limited by various factors. Therefore, as the number of parallaxes increases, the number of three-dimensional image display pixels must be reduced, and high-definition display becomes difficult. Note that this problem is much more serious in the case of performing full color display by color mixture due to the planar arrangement of red, green, and blue subpixels, compared to the case of performing monochrome display.
[0010]
By the way, as can be seen from the above description, the IP-type or multi-view type three-dimensional image display device can be constituted by the two-dimensional image display device and the mask. In general, in a two-dimensional image display device, as represented by a liquid crystal display device, a plasma display device, etc., three vertically long red, green, and blue subpixels having a horizontal width of 1/3 are arranged side by side. The two-dimensional image display pixels are arranged vertically and horizontally so as to form one two-dimensional image display pixel and to form a stripe pattern of red, green, and blue vertical stripes. Since the red, green, and blue subpixels are repeatedly arranged in the horizontal direction, the resolution in the horizontal direction is three times that in the vertical direction at the subpixel level.
[0011]
In general, since the line connecting both human eyes is parallel to the horizontal direction, increasing the number of parallax images in the horizontal direction is effective for recognizing a three-dimensional image. Therefore, a method of arranging a parallax image for each subpixel has already been studied. However, since the number of horizontal parallaxes is still insufficient, each of the three-dimensional image display pixels corresponds to the red, green, and blue sub-pixels and is arranged in a staircase pattern as the window portion described above. It has been proposed to provide two openings. According to this method (hereinafter, referred to as an oblique barrier method), a decrease in resolution in the horizontal direction can be suppressed by allocating a decrease in resolution accompanying the increase in the number of parallaxes in the horizontal direction in the vertical direction. (See Non-Patent Document 1.)
However, the present inventors have found that moire appears in an oblique direction according to the above oblique barrier system.
[0012]
[Non-Patent Document 1]
“SANYO News Release 50D 3D Display without Glasses” [online], September 10, 2002, [October 4, 2002 Search], Internet <URL: http://www.sanyo.co.jp /koho/hypertext4/0209news-j/0910-1.html>
[0013]
[Problems to be solved by the invention]
An object of the present invention is to provide a three-dimensional image display device that can suppress a decrease in resolution associated with an increase in the number of parallaxes in the horizontal direction and that moire is less likely to appear.
[0014]
[Means for Solving the Problems]
According to the first aspect of the present invention, each of the plurality of two-dimensional image display pixels includes a plurality of two-dimensional image display pixels arranged in the horizontal direction, and is arranged in the vertical and horizontal directions. Each of the three-dimensional image display pixels is opposed to a plurality of three-dimensional image display pixels in which first to third sub-pixels having different display colors are arranged in an oblique direction, and the plurality of three-dimensional image display pixels. And a plurality of sets each including first to third windows sequentially arranged in the oblique direction includes a mask provided corresponding to the plurality of three-dimensional image display pixels . a plurality of said containing a three-dimensional image display pixel first to third sub-pixels form a striped pattern formed by repeatedly arranged in the horizontal direction, on the same side as the oblique direction with respect to the transverse direction Lean And the two of the three-dimensional image display pixels that are adjacent to each other in the direction, the set and the other of said of said first, second and third window portion provided corresponding to one of said three-dimensional image display pixels a center distance D of said transverse direction between said pair of said provided corresponding to the three-dimensional image display pixel first to third windows, and the pitch P before kissing stripe-like pattern, There is provided a three-dimensional image display device characterized by satisfying a relationship represented by an inequality: D ≠ n × P (n is a natural number).
According to the second aspect of the present invention, each of the plurality of three-dimensional image display pixels includes a plurality of two-dimensional image display pixels arranged in the horizontal direction, and arranged in the vertical and horizontal directions. Each of the three-dimensional image display pixels is opposed to a plurality of three-dimensional image display pixels in which first to third sub-pixels having different display colors are arranged in an oblique direction, and the plurality of three-dimensional image display pixels. In addition, the plurality of windows extending in the oblique direction include a mask provided corresponding to the plurality of 3D image display pixels, and the plurality of 3D image display pixels include the plurality of 3D image display pixels. a plurality of said first to third sub-pixels form a striped pattern formed by repeatedly arranged in the horizontal direction, two adjacent along a direction inclined on the same side as the oblique direction with respect to the transverse direction Of the three-dimensional image display pixel, and the window portion provided corresponding to the window portion and the other of said three-dimensional image display pixels provided corresponding to one of said three-dimensional image display pixels a center distance D the lateral between, the pitch P before kissing stripe-like pattern, the inequality: D ≠ (n is a natural number) n × P three-dimensional to satisfies the relationship shown in An image display device is provided.
[0016]
Here, the “longitudinal direction” and the “lateral direction” are substantially orthogonal to each other, but are independent of the direction of gravity. However, typically, “vertical direction” means a direction substantially parallel to “vertical direction”, and “lateral direction” means a direction substantially parallel to “horizontal direction” or “line connecting both eyes of the observer”. Means. The term “oblique direction” means a direction intersecting both the “vertical direction” and the “lateral direction”.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. In each figure, the same reference numerals are given to components having the same or similar functions, and redundant description is omitted.
[0018]
FIG. 1 is a perspective view schematically showing a three-dimensional image display apparatus according to the first embodiment of the present invention.
A three-dimensional image display device 1 shown in FIG. 1 includes a two-dimensional image display device 2 such as a liquid crystal display device, a plasma display device, an electroluminescence display device, and a cathode ray tube display device. A mask device 3 is arranged on the front side of the two-dimensional image display device 2. When a transmissive liquid crystal display device is used as the two-dimensional image display device 2, a light source is usually disposed on the back side thereof.
[0019]
FIG. 2A is a plan view schematically showing a display surface of the two-dimensional image display device 2 shown in FIG. FIG. 2B is a plan view schematically showing the mask device 3 shown in FIG.
[0020]
In the two-dimensional image display device 2 shown in FIG. 2A, a display area is configured by red, green, and blue sub-pixels 21R, 21G, and 21B. The subpixels 21R, 21G, and 21B respectively constitute subpixel groups 22R, 22G, and 22B extending in the vertical direction, and the subpixel groups 22R, 22G, and 22B are repeatedly arranged in the horizontal direction to form a stripe pattern. Is forming.
[0021]
The mask device 3 shown in FIG. 2B has, for example, a structure in which window portions 32a to 32c having shapes similar to the subpixels 21R, 21G, and 21B are provided on a light-shielding plate-like body 31. The mask device 3 can be variously modified. For example, a transmissive liquid crystal display device may be used as the mask device 3. In this case, the shapes and positions of the window portions 32a to 32c can be arbitrarily changed.
[0022]
FIG. 3 is a plan view schematically showing the three-dimensional image display device 1 of FIG. In FIG. 3, for simplification, only the windows 32a to 32c of the mask device 3 are drawn. In the figure, reference numeral D denotes the center position of the window portions 32 a to 32 c of a certain three-dimensional image display pixel 24 and the window of the three-dimensional image display pixel 24 adjacent to the pixel 24 in an oblique direction. The horizontal distance between the center positions of the portions 32a to 32c is shown. Further, in the figure, reference symbol P indicates the pitch of the array formed by any of the sub-pixel groups 22R, 22G, and 22B in the horizontal direction.
[0023]
In the three-dimensional image display device 1 shown in FIG. 3, a region surrounded by a dotted line 24 corresponds to one three-dimensional image display pixel. The mask device 3 is provided with three windows 32a to 32c arranged from the upper left to the lower right in the figure corresponding to one 3D image display pixel 24. Therefore, one two-dimensional image display pixel 23 is composed of three sub-pixels 21R, 21G, and 21B arranged from the upper left to the lower right in the drawing. Further, here, one three-dimensional image display pixel 24 includes four two-dimensional image display pixels 23 arranged in the horizontal direction. Therefore, the number of parallaxes in the horizontal direction of the three-dimensional image display device 1 is four, and the number of parallaxes in the vertical direction is one.
[0024]
Instead of providing three windows 32a to 32c arranged in an oblique direction for one three-dimensional image display pixel 24, one window having a shape similar to the three subpixels 21R, 21G, and 21B arranged in the horizontal direction In order to increase the number of parallaxes in the horizontal direction by A, it is necessary to increase the number of subpixels 21R, 21G, and 21B by 3 × A in the horizontal direction within one three-dimensional image display pixel 24. . On the other hand, according to the structure shown in FIG. 3, in order to increase the number of parallaxes in the horizontal direction by A, the subpixels 21R, 21G, and 21B are arranged in the horizontal direction in each row within one three-dimensional image display pixel 24. It is only necessary to increase A. Therefore, according to the present embodiment, it is possible to suppress a decrease in resolution accompanying an increase in the number of parallaxes in the horizontal direction.
[0025]
In the structure shown in FIG. 3, in order to increase the number of parallaxes in the vertical direction by B, the number of subpixels 21R, 21G, and 21B is increased by 3 × B in the vertical direction in one 3D image display pixel 24. There must be. However, since the number of parallaxes in the direction perpendicular to the line connecting the eyes of the observer usually affects only the motion parallax, the number of parallaxes in the direction horizontal to the line connecting the eyes of the observer (this is It affects both eye parallax and motion parallax). Therefore, if the direction for suppressing the decrease in resolution is made to coincide with the horizontal direction, a good three-dimensional image display becomes possible.
[0026]
In the three-dimensional image display device 1 according to the present embodiment, in addition to the above configuration, the distance D and the pitch P further satisfy the relationship represented by the inequality: D ≠ n × P (n is a natural number). . According to such a configuration, the appearance of moire can be suppressed as described below.
[0027]
FIG. 4 is a plan view showing an example of a display color pattern seen when one-eye observation is performed with all the subpixels 21R, 21G, and 21B of the three-dimensional image display device 1 of FIG. 3 turned on. Further, FIG. 5 shows display colors that can be seen when one-eye observation is performed with all the subpixels of the three-dimensional image display device having the same structure as FIG. 3 except that D = n × P. It is a top view which shows an example of a pattern.
[0028]
The structure in FIG. 5 is considered to correspond to the structure disclosed in Non-Patent Document 1 above. As shown in FIG. 5, when D = n × P, the red, green, and blue subpixels 21R, 21G, and 21B observed through the windows 32a to 32c provided in the mask device 3 are respectively Red, green, and blue subpixel groups 25R, 25G, and 25B arranged in a line in an oblique direction are formed. Since these subpixel groups 25R, 25G, and 25B are arranged so as to form a stripe pattern, they are easily visible as moire.
[0029]
On the other hand, as shown in FIG. 4, when D ≠ n × P, the red, green, and blue sub-pixel groups 25R, 25G, and 25B are each composed of only three sub-pixels 21R, 21G, and 21B. Is done. That is, the lengths of the subpixel groups 25R, 25G, and 25B are extremely short. In addition, the distance between the subpixel groups 25R, the distance between the subpixel groups 25G, and the distance between the subpixel groups 25B are all shorter than the structure shown in FIG. Therefore, the appearance of moire can be suppressed.
[0030]
In the first embodiment, the number of parallaxes in the horizontal direction is four, but the number of parallaxes in the horizontal direction may be two or more. In the present embodiment, the number of parallaxes in the vertical direction is one, but the number of parallaxes in the vertical direction may be two or more.
[0031]
Next, a second embodiment of the present invention will be described.
In the first embodiment, three window portions 32 a to 32 c arranged in an oblique direction are provided for one three-dimensional image display pixel 24. In contrast, in the second embodiment, one three-dimensional image display pixel 24 is provided with one window portion having a shape extending in an oblique direction. The second embodiment is substantially the same as the first embodiment except that such a structure is adopted.
[0032]
FIG. 6 is a plan view schematically showing a three-dimensional image display device according to the second embodiment of the present invention. As shown in FIG. 6, in this embodiment, one window portion 32 is provided for each three-dimensional image display pixel 24. The window 32 has a shape extending in a direction parallel to the arrangement direction of the sub-pixels 21R, 21G, and 21B constituting one pixel for two-dimensional image display 23.
[0033]
Here, one three-dimensional image display pixel 24 includes seven two-dimensional image display pixels 23 arranged in the horizontal direction. However, the window 32 and the two-dimensional image display pixel 23 are completely different. It is not a similar shape. Therefore, the position at which each two-dimensional image is observed should be separated from the change in shape as compared with the shape of the window shown in Example 3, but the difference is considered when the observation distance and the size of the window are taken into consideration. Remains in the error range change. Therefore, the number of parallaxes is counted in the same way as in the case of the window shape shown in the third embodiment. The three-dimensional image display device 1 has one parallax in the vertical direction and seven parallaxes in the horizontal direction. .
[0034]
According to the present embodiment, as in the first embodiment, it is possible to suppress a decrease in resolution due to an increase in the number of parallaxes in the horizontal direction. In the 3D image display apparatus 1 according to the present embodiment, as in the first embodiment, the distance D and the pitch P satisfy the relationship represented by the inequality: D ≠ n × P (n is a natural number). Yes. Therefore, it is possible to suppress the appearance of moire.
[0035]
In the second embodiment, the number of parallaxes in the horizontal direction is seven, but the number of parallaxes in the horizontal direction may be two or more. In the present embodiment, the number of parallaxes in the vertical direction is one, but the number of parallaxes in the vertical direction may be two or more.
[0036]
In the first and second embodiments, description has been given of suppressing the appearance of moire due to the relative positions of the sub-pixel groups 22R, 22G, and 22B and the windows 32a to 32c or the windows 32. This structure is also useful for suppressing the appearance of moire due to the relative position between the black matrix generally provided in the two-dimensional image display device 2 such as a liquid crystal display device and the windows 32a to 32c or the window 32. .
[0037]
In the first and second embodiments, when a two-dimensional image display device 2 that functions as an optical shutter such as a transmissive liquid crystal display device is used, the three-dimensional image display device 1 is a two-dimensional image display. A structure in which the mask device 3 is arranged between the display device 2 and the light source, or a structure in which the mask device 3 is arranged on the front side of the two-dimensional image display device 2 can be taken. When the self-luminous two-dimensional image display device 2 is used, the three-dimensional image display device 1 can have a structure in which the mask device 3 is arranged on the front side of the two-dimensional image display device 2.
[0038]
【Example】
Examples of the present invention will be described below.
Example 1
In this example, the three-dimensional image display device 1 (the number of parallaxes in the horizontal direction is four and the number of parallaxes in the vertical direction is one) shown in FIGS.
Here, a liquid crystal display device (XGA: number of pixels = 1024 × 768) is used as the two-dimensional image display device 2, and a backlight is disposed on the back side of the liquid crystal display device 2. The liquid crystal display device 2 includes a color filter layer in which red, green, and blue vertically long colored layers are repeatedly arranged in the horizontal direction.
[0039]
The vertical and horizontal dimensions of the red, green, and blue subpixels 21R, 21G, and 21B of the liquid crystal display device 2 are 150 μm × 50 μm, and the pitch P is 150 μm. The mask device 3 was fabricated by sequentially forming a chromium film and a chromium oxide film on a glass plate and patterning them. The removed portions of the chromium film and the chromium oxide film correspond to the windows 32a to 32c. Here, the vertical and horizontal dimensions of the windows 32a to 32c are 150 μm × 75 μm, and the distance D is 200 μm. did. By setting various dimensions as described above, the number of the three-dimensional image display pixels 24 in the vertical direction is set to 256 (= 768 ÷ 3) and the number of the horizontal arrangement is set to 768 (= 1024 × 3 ÷). 4) It was a piece.
[0040]
Images were actually displayed on the three-dimensional image display device 1 and the images were observed with the line connecting both eyes substantially parallel to the horizontal direction. As a result, moire did not appear and good display was possible.
[0041]
(Comparative Example 1)
FIG. 7 is a plan view schematically showing a three-dimensional image display device according to Comparative Example 1. In this example, the windows 32a to 32c are provided at the positions shown in FIG. That is, the distance D was set to 150 μm and an integral multiple of P. A three-dimensional image display device 1 having the same structure as described in Example 1 was produced except that the arrangement of the three-dimensional image display pixels 24 was changed according to the position of the window portion.
Images were actually displayed on the three-dimensional image display device 1 and the images were observed with the line connecting both eyes substantially parallel to the horizontal direction. As a result, moire appeared.
[0042]
(Comparative Example 2)
FIG. 8 is a plan view schematically showing a three-dimensional image display apparatus according to Comparative Example 2. In this example, the windows 32a to 32c are provided at the positions shown in FIG. That is, Example 1 except that the number of vertical arrangements of the three-dimensional image display pixels 24 is 256 (= 768 ÷ 3) and the number of horizontal arrangements is 384 (= 1024 × 3 ÷ 8). A three-dimensional image display device 1 having the same structure as described in 1 was produced.
Images were actually displayed on the three-dimensional image display device 1 and the images were observed with the line connecting both eyes substantially parallel to the horizontal direction. As a result, moire appeared.
[0043]
(Example 2)
FIG. 9 is a plan view schematically illustrating the three-dimensional image display apparatus according to the second embodiment. In this example, the windows 32a to 32c are provided at the positions shown in FIG. That is, the distance D was set to 250 μm so as not to be an integral multiple of P. A three-dimensional image display device 1 having the same structure as described in Comparative Example 2 was produced except that the arrangement of the three-dimensional image display pixels 24 was changed according to the position of the window portion.
Images were actually displayed on the three-dimensional image display device 1 and the images were observed with the line connecting both eyes substantially parallel to the horizontal direction. As a result, moire did not appear and good display was possible.
[0044]
(Example 3)
In this example, the three-dimensional image display device 1 (the number of parallaxes in the horizontal direction is 7 and the number of parallaxes in the vertical direction is 1) shown in FIG.
Here, as the two-dimensional image display device 2, the same liquid crystal display device (XGA: number of pixels = 1024 × 768) as used in Example 1 was used. Further, a backlight is disposed on the back side of the liquid crystal display device 2.
[0045]
The mask device 3 was produced by the same method as described in Example 1. However, here, the length of the short side of the window portion 32 was 85 μm, and the height in the vertical direction was 150 μm. The distance D was 350 μm. By setting various dimensions as described above, the number of the three-dimensional image display pixels 24 in the vertical direction is 256 (= 768 ÷ 3) and the number of the horizontal arrangement is 438 (= 1024 × 3 ÷). 7) It was a piece.
[0046]
Images were actually displayed on the three-dimensional image display device 1 and the images were observed with the line connecting both eyes substantially parallel to the horizontal direction. As a result, moire did not appear and good display was possible.
[0047]
【The invention's effect】
As described above, according to the present invention, it is possible to provide a three-dimensional image display device that can suppress a decrease in resolution accompanying an increase in the number of parallaxes in the horizontal direction and hardly cause moiré.
[Brief description of the drawings]
FIG. 1 is a perspective view schematically showing a three-dimensional image display apparatus according to a first embodiment of the present invention.
2A is a plan view schematically showing a display surface of the two-dimensional image display device shown in FIG. 1, and FIG. 2B is a plan view schematically showing a mask device shown in FIG. 1;
FIG. 3 is a plan view schematically showing the three-dimensional image display device of FIG. 1;
4 is a plan view showing an example of a display color pattern seen when one-eye observation is performed with all the subpixels of the three-dimensional image display device of FIG. 3 turned on.
FIG. 5 shows display color patterns that can be seen when one-eye observation is performed with all sub-pixels of a three-dimensional image display apparatus having the same structure as in FIG. 3 except that D = n × P. The top view which shows an example.
FIG. 6 is a plan view schematically showing a three-dimensional image display device according to a second embodiment of the present invention.
7 is a plan view schematically showing a three-dimensional image display device according to Comparative Example 1. FIG.
8 is a plan view schematically showing a three-dimensional image display device according to Comparative Example 2. FIG.
9 is a plan view schematically showing a three-dimensional image display apparatus according to Embodiment 2. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Three-dimensional image display apparatus 2 ... Two-dimensional image display apparatus 3 ... Mask apparatus 21R, 21G, 21B ... Subpixel 22R, 22G, 22B ... Stripe pattern 23 ... Two-dimensional image display pixel 24 ... Three-dimensional image display pixel 25R, 25G, 25B... Sub-pixel groups 32, 32a, 32b, 32c...

Claims (2)

Each of the plurality of two-dimensional image display pixels includes a plurality of two-dimensional image display pixels arranged in a horizontal direction, and a plurality of three-dimensional image display pixels arranged in a vertical and horizontal direction. A plurality of three-dimensional image display pixels in which first to third sub-pixels having different colors are arranged in an oblique direction ;
A plurality of sets each of which includes first to third windows that are arranged in the oblique direction and face each of the plurality of 3D image display pixels correspond to the plurality of 3D image display pixels. Provided with a mask,
It said plurality of said plurality of three-dimensional image display pixel contains first to third sub-pixels form a striped pattern formed by repeatedly arranged in the horizontal direction,
Of the two three-dimensional image display pixels adjacent to each other along the direction inclined to the same side as the oblique direction with respect to the horizontal direction, the one provided for the one three-dimensional image display pixel the first to center distance D above the transverse direction between the third window portion of said set and the other of said first or provided corresponding to the three-dimensional image display pixel third window portion of said set and, the pitch P of the previous kiss stripe-like pattern,
Inequality: D ≠ n × P (n is a natural number)
A three-dimensional image display device satisfying the relationship shown in FIG. Each of the plurality of two-dimensional image display pixels includes a plurality of two-dimensional image display pixels arranged in a horizontal direction, and a plurality of three-dimensional image display pixels arranged in a vertical and horizontal direction. A plurality of three-dimensional image display pixels in which first to third sub-pixels having different colors are arranged in an oblique direction ;
A plurality of windows that are opposed to the plurality of 3D image display pixels and have a plurality of windows extending in the oblique direction, corresponding to the plurality of 3D image display pixels,
It said plurality of said plurality of three-dimensional image display pixel contains first to third sub-pixels form a striped pattern formed by repeatedly arranged in the horizontal direction,
Of the two three-dimensional image display pixels adjacent to each other along the direction inclined to the same side as the oblique direction with respect to the horizontal direction, the one provided for the one three-dimensional image display pixel a center distance D of the transverse direction between the window portion provided corresponding to the window portion and the other of said three-dimensional image display pixels, the pitch P before kissing stripe pattern,
Inequality: D ≠ n × P (n is a natural number)
A three-dimensional image display device satisfying the relationship shown in FIG.

Images