JP2012212079A - Display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display device in which unnatural degradation of resolution can be prevented.SOLUTION: A display device includes: a display unit in which pixels having a plurality of sub-pixels are two-dimensionally arranged in a first direction and a second direction, and a plurality of viewpoint images are displayed while being allocated to the respective sub-pixels; and a separation unit for spatially separating the respective viewpoint images displayed on the display unit. Combination of a plurality of sub-pixels on a first sub-pixel line in the first or second direction and another plurality of sub-pixels on a second sub-pixel line adjacent to the first sub-pixel line is used as one pixel for displaying one viewpoint image.

Description

  The present disclosure relates to a display device that performs stereoscopic display by a naked-eye method using parallax separation means such as a parallax barrier.

  As a method for performing stereoscopic display, there are a spectacle method using stereoscopic glasses and a naked-eye method that enables stereoscopic viewing with the naked eye without using special glasses for stereoscopic viewing. A typical spectacle method is a shutter spectacle method using shutter glasses having a left eye shutter and a right eye shutter. In the shutter glasses method, left-eye and right-eye parallax images are alternately displayed at high speed in a frame sequential manner on a two-dimensional display panel. Then, by alternately switching the left-eye shutter and the right-eye shutter according to the display timing of each parallax image, the left-eye parallax image for the observer's left eye and the right-eye parallax image for the right eye By making only the light incident, stereoscopic viewing is possible.

  On the other hand, representative examples of the naked eye method include a parallax barrier method and a lenticular lens method. In the case of the parallax barrier method or the lenticular method, a parallax image for stereoscopic viewing (a parallax image for the right eye and a parallax image for the left eye in the case of two viewpoints) is spatially divided and displayed on the two-dimensional display panel. Stereoscopic viewing is performed by separating the image in the horizontal direction by the parallax separating means. In the case of the parallax barrier method, a parallax barrier provided with a slit-like opening is used as the parallax separation means. In the case of the lenticular method, a lenticular lens in which a plurality of cylindrical divided lenses are arranged in parallel is used as the parallax separation means.

JP 2009-139947 A

  However, in the naked eye method using the parallax separation means, since a plurality of viewpoint images are displayed in a space-divided manner on one screen of the image display element, each viewpoint image is displayed more than the original display resolution of the image display element itself. There is a problem that display resolution deteriorates. For example, when two-dimensional stereoscopic image display is performed by the parallax barrier method, the pattern of the opening of the parallax barrier (barrier pattern) is formed in a vertical stripe shape, and the viewpoint images for the two viewpoints are alternately displayed in the horizontal direction. With a simple display pattern, the horizontal resolution of each viewpoint image deteriorates to ½, while the vertical resolution does not deteriorate. Patent Document 1 discloses an invention related to a display device in which barrier patterns are arranged in a mosaic pattern, but for each viewpoint image, a combination of horizontal sub-pixels is used as one pixel. The resolution in the horizontal direction is degraded.

  An object of the present disclosure is to provide a display device capable of suppressing unnatural degradation of resolution.

  A display device according to the present disclosure includes a display unit configured to two-dimensionally arrange pixels having a plurality of sub-pixels in a first direction and a second direction, and to display a plurality of viewpoint images assigned to each sub-pixel, and a display A plurality of subpixels on the first subpixel line in the first or second direction and adjacent to the first subpixel line. A combination with a plurality of other subpixels on the second subpixel line is used as one pixel for displaying one viewpoint image.

  In the display device according to the present disclosure, a plurality of subpixels on the first subpixel line in the first or second direction and another plurality on the second subpixel line adjacent to the first subpixel line. The display using the combination of the sub-pixels as one pixel for displaying one viewpoint image is performed.

  According to the display device of the present disclosure, the plurality of subpixels on the first subpixel line in the first or second direction and the other on the second subpixel line adjacent to the first subpixel line. Since the combination with a plurality of sub-pixels is used as one pixel for displaying one viewpoint image, resolution degradation can be distributed in the first and second directions, resulting in unnatural resolution. Deterioration can be suppressed.

1 is a cross-sectional view illustrating an example of an overall configuration of a display device according to a first embodiment of the present disclosure. It is a top view which shows an example of the pixel structure of the display part in the display apparatus which concerns on 1st Embodiment. FIG. 3 is a plan view showing a first example in which a plurality of viewpoint (three viewpoints) images are assigned to a plurality of subpixels in the pixel structure shown in FIG. 2. FIG. 3 is a plan view showing a second example in which a plurality of viewpoint (three viewpoints) images are assigned to a plurality of subpixels in the pixel structure shown in FIG. 2. FIG. 4 is a plan view showing a third example in which a plurality of viewpoint (three viewpoints) images are assigned to a plurality of subpixels in the pixel structure shown in FIG. 2. FIG. 6 is a plan view showing a fourth example in which a plurality of viewpoint (four viewpoints) images are assigned to a plurality of subpixels in the pixel structure shown in FIG. 2. FIG. 10 is a plan view showing a fifth example in which a plurality of viewpoint (four viewpoints) images are assigned to a plurality of subpixels in the pixel structure shown in FIG. 2. FIG. 10 is a plan view illustrating a sixth example in which a plurality of viewpoint (five viewpoint) images are assigned to a plurality of subpixels in the pixel structure illustrated in FIG. 2. It is a top view which shows an example of the basic structure of the pixel of the display part in the display apparatus which concerns on 2nd Embodiment. 10 is a plan view showing a first example in which a plurality of viewpoint (two viewpoints) images are assigned to a plurality of subpixels in the basic pixel structure shown in FIG. 9. FIG. FIG. 10 is a plan view showing a second example in which a plurality of viewpoint (two viewpoints) images are assigned to a plurality of subpixels in the basic pixel structure shown in FIG. 9. FIG. 10 is a plan view showing a third example in which a plurality of viewpoint (three viewpoints) images are assigned to a plurality of subpixels in the basic pixel structure shown in FIG. 9. FIG. 10 is a plan view showing a fourth example in which a plurality of viewpoint (three viewpoints) images are assigned to a plurality of subpixels in the basic pixel structure shown in FIG. 9. It is sectional drawing which shows the other structural example of a display apparatus.

  Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings.

<First Embodiment>
[Overall configuration of stereoscopic image display apparatus]
FIG. 1 shows a configuration example of a display device according to the first embodiment of the present invention. This display device includes a parallax barrier 1 as a separation unit and a display unit 2.

  The display unit 2 includes a liquid crystal display panel, an electric luminance display panel, or a two-dimensional display such as a plasma display. On the image display surface of the display unit 2, a plurality of pixels are two-dimensionally arranged in a first direction (horizontal direction) and a second direction (vertical direction). One pixel is composed of a plurality of subpixels. For example, as shown in FIG. 2, one pixel is an R (red) subpixel 20R, a G (green) subpixel 20G, a B (blue) subpixel 20B, and a W (white) subpixel 20W. It consists of subpixels of 1st to 4th colors. Then, the subpixels of four colors are periodically and alternately arranged in the horizontal direction, and subpixels of the same color are arranged in the vertical direction. In FIG. 2, a fine rectangular portion is one subpixel. In the case of this arrangement, in the normal display state of the display unit 2 (normal two-dimensional image display state), the combination of the four sub-pixels in the horizontal direction becomes one pixel, and the size of one pixel is, for example, horizontal Both the direction and the vertical direction are 1P. On the display unit 2, a plurality of viewpoint parallax images (viewpoint images) are assigned to each sub-pixel according to a predetermined pixel arrangement pattern to be described later and are combined and displayed.

  The parallax barrier 1 separates a plurality of viewpoint images included in the parallax composite image displayed on the display unit 2 in a plurality of viewpoint directions so as to enable stereoscopic viewing, and enables stereoscopic viewing. The display unit 2 is opposed to the display unit 2 in a predetermined positional relationship. The parallax barrier 1 includes a shielding unit 11 that shields light, and a parallax separation unit that transmits light and is associated with a sub-pixel of the image display element 2 under a predetermined condition so as to enable stereoscopic viewing. The opening 12 is provided. The parallax barrier 1 may be a fixed barrier element or a variable barrier element. In the case of a fixed barrier element, for example, a transparent parallel flat plate (base material) having a pattern that becomes the opening 12 and the shielding part 11 made of a thin film metal or the like can be used. When the variable barrier element is used, the pattern of the opening 12 and the shielding part 11 can be selectively formed by using, for example, a display function (light modulation function) of a backlight type liquid crystal display element. Although FIG. 1 shows an example in which the parallax barrier 1 is arranged on the display surface side of the display unit 2, a configuration in which the parallax barrier 1 is arranged on the back side of the display unit 2 may be employed. When a backlight type liquid crystal display panel is used as the display unit 2, a barrier element 7 may be disposed between the backlight and the liquid crystal display panel on the back side of the liquid crystal display panel.

  The parallax barrier 1 separates a plurality of viewpoint images included in the parallax composite image on the screen of the display unit 2 so that only a specific viewpoint image is observed when the display unit 2 is observed from a specific viewpoint position. It is supposed to be. From the positional relationship between the opening 12 of the parallax barrier 1 and each subpixel of the display unit 2, the emission angle of light emitted from each subpixel of the display unit 2 is limited. Each subpixel in the display unit 2 is displayed in a different direction depending on the positional relationship with the opening 12. The light beams L3 and L2 from different sub-pixels reach the left and right eyes 10L and 10R of the observer, and can be perceived as a stereoscopic video by observing viewpoint images with parallax.

[Specific Examples of Perspective Image Allocation Pattern and Opening 12 Arrangement Pattern]
In this display device, a plurality of subpixels on a first subpixel line in a first direction (horizontal direction) and a plurality of other subpixels on a second subpixel line adjacent to the first subpixel line. A combination with the sub-pixel is used as one pixel for displaying one viewpoint image. Hereinafter, a plurality of specific examples will be described with reference to FIGS. 3 to 8, the numbers assigned to the red subpixel 20R, the green subpixel 20G, the blue subpixel 20B, and the white subpixel 20W are pixel numbers (viewpoint numbers) corresponding to the number of viewpoints to be displayed. Is shown. 3 to 8, the arrangement pattern (barrier pattern) of the openings 12 of the parallax barrier 1 shows a state viewed from a position corresponding to the first viewpoint image.

  In any of the specific examples of FIGS. 3 to 8, the first and second color sub-pixels and the second sub-pixel line constituting the first pixel on the first sub-pixel line (odd row line). A combination of the third and fourth color sub-pixels constituting the second pixel on the (even-numbered line) is used as one pixel for displaying one viewpoint image. For example, taking the first viewpoint image as an example, the one pixel at the upper left is the red sub-pixel 20R and the green sub-pixel 20G on the uppermost sub-pixel line and the next second row. It is composed of a combination of a blue sub-pixel 20B and a white sub-pixel 20W which are positioned obliquely on the sub-pixel line.

(Specific example of 3-viewpoint display)
The first to third specific examples in FIGS. 3 to 5 are examples in the case of performing three-point stereoscopic display. In the first specific example of FIG. 3, the opening 12 of the parallax barrier 1 is two-dimensionally arranged in the horizontal direction and the vertical direction so that the position of the opening 12 periodically changes every sub-pixel line in the horizontal direction. Has been placed. The size of one opening 12 corresponds to the size (width) of two subpixels in the horizontal direction, and corresponds to the size (length) of one subpixel in the vertical direction. Yes. The assignment pattern of the viewpoint image to each subpixel corresponds to the arrangement pattern of the openings 12. The assignment pattern of the viewpoint image to each subpixel is periodically changed for each subpixel line in the horizontal direction.

  In the second specific example of FIG. 4, the plurality of openings 12 of the parallax barrier 1 has a step barrier shape that is obliquely continuous in a stepped shape. The size of one opening 12 corresponds to the size (width) of two subpixels in the horizontal direction, and corresponds to the size (length) of one subpixel in the vertical direction. Yes. The assignment pattern of the viewpoint image to each subpixel corresponds to the arrangement pattern of the openings 12. The assignment pattern of the viewpoint image to each subpixel has a step barrier shape in which a combination of two subpixels is obliquely continued stepwise.

  In the third specific example of FIG. 5, the plurality of openings 12 </ b> A of the parallax barrier 1 have an oblique barrier shape in which the openings are continuous in an oblique direction. The assignment pattern of the viewpoint image to each subpixel corresponds to the arrangement pattern of the openings 12A in the oblique direction. The assignment pattern of the viewpoint image to each sub-pixel is the same as the second specific example of FIG.

  In all of the first to third specific examples in FIGS. 3 to 5, the size of one pixel (one three-dimensional pixel) for three viewpoints is horizontal with respect to the size of one normal pixel in FIG. 2. Is 1.5 times (1.5P), and the vertical direction is 2 times (2P).

(Specific example of 4-viewpoint display)
The fourth to fifth specific examples in FIGS. 6 to 7 are examples in the case of performing stereoscopic display of four viewpoints. The fourth specific example of FIG. 6 is obtained by extending the number of viewpoint images assigned to each subpixel from three viewpoints to four viewpoints as compared to the first specific example of FIG. The arrangement pattern of the openings 12 is basically the same as the first specific example of FIG.

  The fifth specific example of FIG. 7 is obtained by extending the number of viewpoint images assigned to each subpixel from three viewpoints to four viewpoints as compared to the second specific example of FIG. The arrangement pattern of the openings 12 is basically the same as the second specific example of FIG.

  In all of the fourth to fifth specific examples of FIGS. 6 to 7, the size of one pixel (one three-dimensional pixel) for four viewpoints is in the horizontal direction with respect to the size of one normal pixel in FIG. Is double (2P), and the vertical direction is double (2P).

(Specific example of 5-viewpoint display)
The sixth specific example of FIG. 8 is an example in the case of performing stereoscopic display of five viewpoints. In the sixth specific example, the number of viewpoint images allocated to each subpixel is expanded from three viewpoints to five viewpoints as compared to the first specific example of FIG. The arrangement pattern 12 is basically the same as the first specific example of FIG.

  In the sixth specific example, the size of one pixel (one three-dimensional pixel) for five viewpoints is 2.5 times (2.5 P) in the horizontal direction compared to the size of one normal pixel in FIG. The vertical direction is doubled (2P).

[effect]
As described above, according to the display device according to the present embodiment, a plurality of subpixels on the first subpixel line in the first direction (horizontal direction) are adjacent to the first subpixel line. Since the combination with other sub-pixels on the second sub-pixel line is used as one pixel for displaying one viewpoint image, resolution degradation is reduced in the first direction (horizontal direction) and It can be dispersed in the second direction (vertical direction), and unnatural degradation of resolution can be suppressed.

<Second Embodiment>
Next, a display device according to a second embodiment of the present invention will be described. In addition, the same code | symbol is attached | subjected to the substantially same component as the display apparatus based on the said 1st Embodiment, and description is abbreviate | omitted suitably.

[Basic pixel structure]
FIG. 9 shows an example of the basic structure of the pixels of the display unit 2 in the display device according to the present embodiment. In the present embodiment, the first to the second pixels are R (red) subpixel 21R, G (green) subpixel 21G, B (blue) subpixel 21B, and W (white) subpixel 21W. It is composed of four color sub-pixels. The first to fourth color sub-pixels are arranged in a square shape in the first direction (horizontal direction) and the second direction (vertical direction). Each of the first to fourth color sub-pixels has a square shape. In the case of this arrangement, in the normal display state of the display unit 2 (normal two-dimensional image display state), the subpixels of two colors in the horizontal direction and the subpixels of the other two colors on the next subpixel line are displayed. A square combination with a pixel becomes one pixel, and the size of one pixel is, for example, 1P in both the horizontal direction and the vertical direction.

[Specific Examples of Perspective Image Allocation Pattern and Opening 12 Arrangement Pattern]
In the present embodiment, a plurality of subpixels on the first subpixel line in the second direction (vertical direction) and another plurality on the second subpixel line adjacent to the first subpixel line. Are used as one pixel for displaying one viewpoint image. Hereinafter, a plurality of specific examples will be described with reference to FIGS. 10 to 13, the numbers assigned to the red subpixel 21R, the green subpixel 21G, the blue subpixel 21B, and the white subpixel 21W are pixel numbers (viewpoint numbers) corresponding to the number of viewpoints to be displayed. Is shown. 10 to 13, the arrangement pattern (barrier pattern) of the opening 12 of the parallax barrier 1 shows a state viewed from a position corresponding to the first viewpoint image.

(Specific example of 2-viewpoint display)
The first and second specific examples in FIGS. 10 to 11 are examples in the case of performing two-view stereoscopic display. In the specific examples of FIGS. 10 to 11, the first direction (horizontal direction) in the coordinate system on the space where the display device is arranged is X0, and the second direction (vertical direction) is Y0. Further, the first direction (horizontal direction) in the coordinate system within the display surface is X1, and the second direction (vertical direction) is Y1. Here, the display unit 2 has the first arrangement state (FIG. 10) and the second arrangement state in which the arrangement direction is rotated by a predetermined angle (90 °) in a plane parallel to the display surface with respect to the first arrangement state. It is assumed that image display is possible by switching to two arrangement states, the arrangement state (FIG. 2). In this case, the combination of subpixels used as one pixel for displaying the viewpoint image is different between the first arrangement state and the second arrangement state.

  In each of the specific examples of FIGS. 10 to 11, the first pixel on the first subpixel line (odd column line) in the second direction (vertical direction) in the X0-Y0 coordinate system on the arrangement space is used. One combination of the first and second color sub-pixels constituting the second pixel and the third and fourth color sub-pixels constituting the second pixel on the second sub-pixel line (even column line) It is used as one pixel for displaying a viewpoint image.

  For example, in the first arrangement state of FIG. 10, taking the first viewpoint image as an example, the leftmost pixel is the red subpixel 21R and the blue subpixel 21B on the leftmost subpixel line of the first column. And a combination of a green sub-pixel 21G and a white sub-pixel 21W positioned in an oblique direction on the sub-pixel line in the next second column.

  Further, for example, in the second arrangement state of FIG. 11, taking the first viewpoint image as an example, the leftmost pixel is the blue subpixel 21B and the white subpixel on the leftmost subpixel line. 21W and a combination of a red sub-pixel 21R and a green sub-pixel 21G that are positioned obliquely on the next sub-pixel line in the second column.

  In the first arrangement state of FIG. 10, the first subpixel line and the second subpixel line are subpixel lines in the second direction (Y1 direction) in the X1-Y1 coordinate system in the display surface. In the second arrangement state of FIG. 11, the first subpixel line and the second subpixel line are subpixel lines in the first direction (X1 direction) in the X1-Y1 coordinate system in the display surface. is there. For this reason, the combination of sub-pixels used as one pixel for displaying the viewpoint image differs between the first arrangement state and the second arrangement state for each column.

  In any of the specific examples of FIGS. 10 to 11, the opening 12 of the parallax barrier 1 is arranged for each subpixel line in the second direction (vertical direction) in the X0-Y0 coordinate system on the arrangement space. Are arranged two-dimensionally in the horizontal direction and the vertical direction so as to change periodically. The size of one opening 12 corresponds to the size (width) of one subpixel in the horizontal direction in the X0-Y0 coordinate system on the arrangement space, and the vertical direction has two subpixels in the vertical direction. It corresponds to the size (length). The assignment pattern of the viewpoint image to each subpixel corresponds to the arrangement pattern of the openings 12. The assignment pattern of the viewpoint image to each subpixel is periodically changed for each subpixel line in the vertical direction.

(Specific example of 3-viewpoint display)
The 3rd-4th specific example of FIGS. 12-13 is an example in the case of performing the stereoscopic display of 3 viewpoints. 12 to 13, the size of the entire display screen is expanded in the vertical direction with respect to the pixel structure shown in FIG. 9.

  The third specific example of FIG. 12 is obtained by extending the number of viewpoint images assigned to each subpixel from two viewpoints to three viewpoints compared to the first specific example of FIG. The arrangement pattern of the openings 12 is basically the same as that of the first specific example of FIG.

  In the fourth specific example of FIG. 13, the plurality of openings 12 of the parallax barrier 1 have a step barrier shape that is obliquely continuous in a staircase shape. The assignment pattern of the viewpoint image to each sub-pixel corresponds to the arrangement pattern of the step barrier-shaped openings 12. The assignment pattern of the viewpoint image to each subpixel has a step barrier shape in which a combination of two subpixels is obliquely continued stepwise.

  In all of the third to fourth specific examples of FIGS. 12 to 13, the size of one pixel (one three-dimensional pixel) for three viewpoints is in the horizontal direction with respect to the size of one normal pixel in FIG. 9. Is 1.5 times (1.5P), and the vertical direction is 2 times (2P).

[effect]
As described above, according to the display device according to the present embodiment, a plurality of subpixels on the first subpixel line in the second direction (vertical direction) in the X0-Y0 coordinate system on the arrangement space. And a combination of a plurality of other sub-pixels on the second sub-pixel line adjacent to the first sub-pixel line are used as one pixel for displaying one viewpoint image. Can be dispersed in the first direction (horizontal direction) and the second direction (vertical direction), and unnatural degradation of resolution can be suppressed.

<Other embodiments>
The technology according to the present disclosure is not limited to the description of each of the above embodiments, and various modifications can be made.
For example, as shown in FIG. 14, instead of the parallax barrier 1 shown in FIG. 1, a lenticular lens 1A may be used as the separation unit. The lenticular lens 1A has a plurality of split lenses that function as a plurality of parallax separation units. The split lens is, for example, a cylindrical lens 13 extending in a predetermined direction. For example, instead of the oblique barrier method of FIG. 5, a configuration in which the cylindrical lens 13 is arranged so that the generatrix direction is an oblique direction may be used.

For example, this technique can take the following composition.
(1)
A display unit in which pixels having a plurality of sub-pixels are two-dimensionally arranged in a first direction and a second direction, and a plurality of viewpoint images are assigned to the sub-pixels and displayed.
A separation unit that spatially separates each viewpoint image displayed on the display unit,
A plurality of subpixels on a first subpixel line in the first or second direction and a plurality of other subpixels on a second subpixel line adjacent to the first subpixel line; A display device using a combination as one pixel for displaying one viewpoint image.
(2)
The display device according to (1), wherein one pixel of the display unit includes first to fourth color sub-pixels having different display colors.
(3)
The first and second color sub-pixels constituting the first pixel on the first sub-pixel line and the third and fourth constituting the second pixel on the second sub-pixel line The display device according to (2), wherein a combination with a sub-pixel of a color is used as one pixel for displaying one viewpoint image.
(4)
In the display unit, the first to fourth color sub-pixels are periodically and alternately arranged in the first direction, and the same color sub-pixels are arranged in the second direction. ,
The display device according to (3), wherein the first sub-pixel line and the second sub-pixel line are sub-pixel lines in the first direction.
(5)
One pixel of the display unit is a pixel in which the sub-pixels of the first to fourth colors are arranged in a square shape in the first direction and the second direction,
The display device according to (3), wherein the first subpixel line and the second subpixel line are subpixel lines in the second direction.
(6)
The display unit switches between two arrangement states: a first arrangement state and a second arrangement state in which the arrangement direction is rotated by a predetermined angle within a plane parallel to the display surface with respect to the first arrangement state. Image display is possible,
The display device according to (5), wherein a combination of sub-pixels used as one pixel for displaying the viewpoint image is different between the first arrangement state and the second arrangement state.
(7)
In the first arrangement state, the first subpixel line and the second subpixel line are subpixel lines in the second direction in a coordinate system in the display surface of the display unit,
In the second arrangement state, the first sub-pixel line and the second sub-pixel line are sub-pixel lines in the first direction in the coordinate system in the display surface of the display unit. ) Display device.
(8)
The separation portion is a parallax barrier element having a plurality of openings that transmit light,
The plurality of openings are two-dimensionally arranged in the first direction and the second direction so that the arrangement positions thereof periodically change for each sub-pixel line in the first direction or the second direction. The display device according to any one of the above (1) to (7).
(9)
The separation portion is a parallax barrier element having a plurality of openings that transmit light,
The parallax barrier element has a configuration of a step barrier system in which the plurality of openings are obliquely continuous in a stepped manner, or an oblique barrier system in which the openings are continuous in an oblique direction. (1) to (7) The display device according to one.

  DESCRIPTION OF SYMBOLS 1 ... Parallax barrier, 1A ... Lenticular lens, 2 ... Display part, 10L ... Left eye, 10R ... Right eye, 11 ... Shielding part, 12, 12A ... Opening part, 13 ... Cylindrical lens (divided lens), 20R, 21R ... red subpixel, 20G, 21G ... green subpixel, 20B, 21B ... blue subpixel, 20W, 21W ... white subpixel.

Claims (9)

A display unit in which pixels having a plurality of sub-pixels are two-dimensionally arranged in a first direction and a second direction, and a plurality of viewpoint images are assigned to the sub-pixels for display
A separation unit that spatially separates each viewpoint image displayed on the display unit,
A plurality of subpixels on a first subpixel line in the first or second direction and a plurality of other subpixels on a second subpixel line adjacent to the first subpixel line; A display device using a combination as one pixel for displaying one viewpoint image. The display device according to claim 1, wherein one pixel of the display unit includes first to fourth color sub-pixels having different display colors. The first and second color sub-pixels constituting the first pixel on the first sub-pixel line and the third and fourth constituting the second pixel on the second sub-pixel line The display device according to claim 2, wherein a combination of sub-pixels of colors is used as one pixel for displaying one viewpoint image. In the display unit, the first to fourth color sub-pixels are periodically and alternately arranged in the first direction, and the same color sub-pixels are arranged in the second direction. ,
The display device according to claim 3, wherein the first subpixel line and the second subpixel line are subpixel lines in the first direction. One pixel of the display unit is a pixel in which the sub-pixels of the first to fourth colors are arranged in a square shape in the first direction and the second direction,
The display device according to claim 3, wherein the first subpixel line and the second subpixel line are subpixel lines in the second direction. The display unit switches between two arrangement states: a first arrangement state and a second arrangement state in which the arrangement direction is rotated by a predetermined angle within a plane parallel to the display surface with respect to the first arrangement state. Image display is possible,
The display device according to claim 5, wherein a combination of sub-pixels used as one pixel for displaying the viewpoint image is different between the first arrangement state and the second arrangement state. In the first arrangement state, the first subpixel line and the second subpixel line are subpixel lines in the second direction in a coordinate system in the display surface of the display unit,
The first sub-pixel line and the second sub-pixel line in the second arrangement state are sub-pixel lines in the first direction in a coordinate system in a display surface of the display unit. The display device described in 1. The separation portion is a parallax barrier element having a plurality of openings that transmit light,
The plurality of openings are two-dimensionally arranged in the first direction and the second direction so that the arrangement positions thereof periodically change for each sub-pixel line in the first direction or the second direction. The display device according to claim 1. The separation portion is a parallax barrier element having a plurality of openings that transmit light,
The display device according to claim 1, wherein the parallax barrier element has a configuration of a step barrier system in which the plurality of openings are obliquely continuous in a stepped manner or an oblique barrier system in which openings are continuously obliquely formed.

Images