JP2010266713A - Electrooptical device and electronic equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electrooptical device and electronic equipment where the stripe-like irregularity and crosstalk is small even when openings are arranged with a different pitch. <P>SOLUTION: The openings 52 of parallax barriers 50 included in a liquid crystal device 100 are formed in a polygonal shape having a short side 52a and a long side 52b, and are arranged with a substantially constant pitch in the arrangement direction along at least one of the short side 52a and the long side 52b, and the shapes are nonuniform in the arrangement direction of the openings 52. In an opening cycle 53H consisting of a predetermined number of openings 52, the openings 52 formed in a rectangular shape and the openings 52 formed in a shape where a partial region of the rectangular shape is moved with respect to the other region in the arrangement direction are mixed. The partial region is a combination of a plurality of small regions 52c into which the rectangular region is virtually divided by at least one of a line parallel to the short side 52a and a line parallel to the long side 52b. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an electro-optical device and an electronic apparatus.

  In an electro-optical device that directs different images in two or more different directions, light separation means such as a parallax barrier is disposed so as to overlap an electro-optical panel from which light contributing to display of different images is emitted. It is used.

  The parallax barrier has a light shielding portion that shields light and an opening that allows light to pass therethrough, and directs light that contributes to display of the first image emitted from the first pixel in the first viewing direction. In addition, the light that contributes to the display of the second image emitted from the second pixel is directed to the second viewing direction, and functions as a barrier that displays the first image and the second image in different directions. .

  The opening of the parallax barrier is desirably formed at an ideal arrangement pitch that is defined based on the arrangement pitch of the pixels of the electro-optical panel and the distance between the eyes of the observer. However, it is difficult to form the openings of the parallax barrier with an ideal arrangement pitch in terms of processing capability in the manufacturing process. Therefore, a method has been proposed in which a plurality of different arrangement pitches that can be manufactured are mixed and the average value of the different arrangement pitches is brought close to the ideal arrangement pitch (for example, Patent Document 1).

JP-A-8-36145

  However, in the method of arranging the openings at a plurality of different arrangement pitches as described above, a deviation between the ideal arrangement pitch and the actual arrangement pitch occurs. There has been a problem that the observer is visually recognized. In addition, light that contributes to the display of the other image is visually recognized in a mixed (crosstalk) manner from the viewing direction in which the light that contributes to the display of one of the first image and the second image is viewed. There was a problem.

  SUMMARY An advantage of some aspects of the invention is to solve at least a part of the problems described above, and the invention can be implemented as the following forms or application examples.

  Application Example 1 An electro-optical device according to this application example includes at least a first pixel that emits light constituting a first image and a second pixel that emits light constituting a second image. Are arranged on the side where the light constituting the first image and the light constituting the second image are emitted from the electro-optical panel, A light-shielding optical filter having openings arranged corresponding to the first pixel and the second pixel, wherein the opening of the optical filter has a first side, and the first side And a second side located in a direction intersecting the side, and is substantially equal to the arrangement direction along at least one of the first side and the second side. Arranged at a pitch, and the shape of the openings in the arrangement direction Wherein the heterogeneous.

  According to this configuration, the first image and the second image can be directionally displayed in different display angle ranges by separating the light emitted from the electro-optical panel with the optical filter. Since the shape of the opening of the optical filter is non-uniform in the arrangement direction, the amount of light passing through each opening is non-uniform in the arrangement direction. Therefore, even if the arrangement pitch of the openings of the optical filter is deviated from an ideal arrangement pitch based on the arrangement pitch of the pixels of the electro-optic panel, the amount of deviation is dispersed in the arrangement direction. As a result, streaky unevenness caused by the interference of light passing through the openings is less visible. In addition, it is difficult to visually recognize the crosstalk that is viewed in a mixed manner with the light that contributes to the display of the other image from the viewing direction in which the light that contributes to the display of the one image is viewed.

  Application Example 2 In the electro-optical device according to the application example described above, the openings are arranged at substantially equal pitches in both the arrangement direction along the first side and the arrangement direction along the second side. It may be arranged.

  According to this configuration, it is possible to disperse the deviation of the arrangement pitch of the openings from the ideal arrangement pitch in both the arrangement direction along the first side and the arrangement direction along the second side. As a result, streaky unevenness and crosstalk are less likely to be visually recognized both in the arrangement direction along the first side and in the arrangement direction along the second side.

  Application Example 3 In the electro-optical device according to the application example described above, the opening formed in a rectangular shape having the first side and the second side in the arrangement direction, and the rectangular A part of the shape is mixed with the opening formed in a shape moved by a predetermined length to a predetermined side along the arrangement direction with respect to another region of the rectangular shape. You may do it.

  According to this configuration, in addition to the opening formed in a rectangular shape, a part of the rectangular shape is formed in a shape moved by a predetermined length to a predetermined side with respect to another region. By mixing the openings, the shapes of the openings in the arrangement direction can be made non-uniform.

  Application Example 4 In the electro-optical device according to the application example, the partial area includes a line in which the rectangular area is parallel to the first side and a line parallel to the second side. You may comprise by the combination of the small area | region virtually divided | segmented into plurality by at least one of these.

  According to this structure, the shape of an opening part can be made into a different shape by combining a small area | region and comprising a one part area | region. For this reason, the deviation | shift amount of the arrangement pitch of the opening part with respect to an ideal arrangement pitch can be disperse | distributed more. Thereby, streaky unevenness and crosstalk can be made less visible.

  Application Example 5 In the electro-optical device according to the application example described above, the number of the small regions constituting the partial region is sequentially increased in the openings arranged along the arrangement direction. May be.

  According to this configuration, the shape of the opening can be varied differently, and the difference in shape between the openings adjacent to each other in the arrangement direction can be reduced. Thereby, the deviation | shift amount of the arrangement pitch of the opening part with respect to an ideal arrangement pitch can be disperse | distributed effectively.

  Application Example 6 In the electro-optical device according to the application example described above, the number of the small regions constituting the partial region is the same in the openings arranged along the arrangement direction. It may be increased in a state where there are a plurality of portions.

  According to this configuration, the case where the shapes of the openings adjacent to each other in the arrangement direction are different from the case where the shapes are the same can be mixed. Thereby, the deviation | shift amount of the arrangement pitch of the opening part with respect to an ideal arrangement pitch can be disperse | distributed effectively.

  [Application Example 7] The electro-optical device according to the application example described above, which includes a predetermined number of the openings arranged along the arrangement direction, and is repeatedly arranged along the arrangement direction. A cycle may be provided, and the shape of the opening may be non-uniform in the opening cycle.

  According to this configuration, the opening arrangement pitch can be made closer to the ideal arrangement pitch in units of opening cycle.

  Application Example 8 An electronic apparatus according to this application example includes the electro-optical device described above.

  According to this configuration, since the electronic apparatus has the electro-optical device as a display unit, higher-quality directional display can be obtained.

1 is a diagram illustrating a configuration of a liquid crystal device according to a first embodiment. FIG. 3 is an enlarged plan view of a display area of the liquid crystal device according to the first embodiment. FIG. 2 is an enlarged plan view of a liquid crystal panel as an electro-optical panel according to the first embodiment. 1 is a schematic cross-sectional view of a liquid crystal device according to a first embodiment. The enlarged plan view of the parallax barrier as an optical filter which concerns on 1st Embodiment. The figure explaining the structure on the design of the opening part in the parallax barrier which concerns on 1st Embodiment. The figure explaining the structure on the design of the opening part in the parallax barrier which concerns on 1st Embodiment. The figure explaining the structure on the design of the opening part in the parallax barrier which concerns on 1st Embodiment. The figure explaining the structure on the design of the opening part in the parallax barrier which concerns on 1st Embodiment. The figure explaining the structure on the design of the opening part in the parallax barrier which concerns on 2nd Embodiment. The figure explaining the structure on the design of the opening part in the parallax barrier which concerns on 2nd Embodiment. The figure explaining the structure on the design of the opening part in the parallax barrier which concerns on 2nd Embodiment. The figure explaining the structure on the design of the opening part in the parallax barrier which concerns on 2nd Embodiment. The figure explaining the structure on the design of the opening part in the parallax barrier which concerns on 3rd Embodiment. The figure explaining the structure on the design of the opening part in the parallax barrier which concerns on 3rd Embodiment. The figure explaining the structure on the design of the opening part in the parallax barrier which concerns on 3rd Embodiment. The figure explaining the structure on the design of the opening part in the parallax barrier which concerns on 3rd Embodiment. FIG. 14 illustrates a display device as an electronic apparatus. The figure explaining the parallax barrier which concerns on the modification 1. FIG.

  The present embodiment will be described below with reference to the drawings. In each of the drawings to be referred to, in order to show the configuration in an easy-to-understand manner, the layer thickness, dimensional ratio, angle, and the like of each component are appropriately changed. In each drawing to be referred to, some elements, wiring, connection portions, and the like are omitted.

(First embodiment)
<Liquid crystal device>
First, the configuration of a liquid crystal device as an electro-optical device according to the first embodiment will be described with reference to the drawings. FIG. 1 is a diagram illustrating a configuration of the liquid crystal device according to the first embodiment. Specifically, FIG. 1A is a perspective view, and FIG. 1B is a cross-sectional view taken along line AA ′ in FIG. FIG. 2 is an enlarged plan view of a display area of the liquid crystal device according to the first embodiment. Specifically, FIG. 2 is a view of the liquid crystal device as viewed from the observation side, and is also a plan view showing a state in which the parallax barrier of FIG. 5 is superimposed on the liquid crystal panel of FIG. FIG. 3 is an enlarged plan view of a liquid crystal panel as an electro-optical panel according to the first embodiment. FIG. 4 is a schematic cross-sectional view of the liquid crystal device according to the first embodiment. Specifically, FIG. 4 is a cross-sectional view taken along line BB ′ in FIG. FIG. 5 is an enlarged plan view of a parallax barrier as an optical filter according to the first embodiment. In the present specification, viewing from the normal direction of the observation side surface of the liquid crystal device is also referred to as “plan view”.

  The liquid crystal device as the electro-optical device according to the present embodiment is an active matrix type liquid crystal device including a TFT (Thin Film Transistor) element as a switching element, and a TN (Twisted Nematic) transmission type. It is a liquid crystal device. As shown in FIG. 1, the liquid crystal device 100 includes a liquid crystal panel 1 as an electro-optical panel, a parallax barrier 50 as an optical filter disposed facing the liquid crystal panel 1, and a backlight 46. .

  Hereinafter, the direction on the parallax barrier 50 side of the liquid crystal panel 1 is also referred to as “observation side”, and the direction opposite to the parallax barrier 50 is also referred to as “back side”. The parallax barrier 50 includes a light shielding portion 51 and an opening 52 (see FIGS. 2, 4, and 5). A polarizing plate 45 is disposed on the observation side of the parallax barrier 50, and a polarizing plate 44 is disposed on the back side of the liquid crystal panel 1.

  The liquid crystal panel 1 includes a counter substrate 30 as a first substrate disposed on the observation side, and an element substrate 10 as a second substrate disposed to face the counter substrate 30. The element substrate 10 and the counter substrate 30 are bonded together via a frame-shaped sealing agent 41. A liquid crystal layer 40 as a display element is disposed in a space surrounded by the element substrate 10, the counter substrate 30, and the sealing agent 41.

  A driver IC 42 for driving the liquid crystal layer 40 is disposed on the element substrate 10. A backlight 46 is disposed on the back side of the polarizing plate 44. The liquid crystal device 100 performs display in the display region 2 by modulating the light incident from the backlight 46 and transmitting it to the observation side.

  As shown in FIG. 3, the liquid crystal panel 1 has two-dimensionally arranged sub-pixels 4r, 4g, and 4b, which display red (r), green (g), and blue (b), respectively. (Hereinafter, when the corresponding colors are not distinguished, they are also simply referred to as sub-pixels 4). The sub-pixel 4 has a rectangular planar shape and has a short side and a long side. A direction along the short side of the sub-pixel 4 is referred to as a row direction, and a direction along the long side of the sub-pixel 4 is referred to as a column direction. The sub-pixels 4 are arranged in a matrix in the row direction and the column direction.

  One pixel 6 is composed of the sub-pixels 4r, 4g, and 4b of three different colors. The pixel 6, that is, the sub-pixels 4r, 4g, and 4b are repeatedly arranged in this order in the row direction. In the column direction, the sub-pixels 4 are arranged such that the sub-pixels 4 corresponding to the same color are arranged in a line in a stripe shape. A light shielding layer 32 made of a light shielding resin is disposed between the adjacent sub-pixels 4. That is, the area surrounded by the light shielding layer 32 is the area of the sub-pixel 4.

  As shown in FIG. 2, the light emitted from the sub-pixel 4 to the observation side through the parallax barrier 50 constitutes either the first image or the second image. The sub-pixel 4 that emits light constituting the first image is also called a sub-pixel 4R, and the sub-pixel 4 that emits light constituting the second image is also called a sub-pixel 4L. In the row direction, sub-pixels 4R and sub-pixels 4L are alternately and repeatedly arranged. Also, the sub-pixels 4R and the sub-pixels 4L are alternately and repeatedly arranged in the column direction.

  Further, the pixel 6 that emits light constituting the first image is also referred to as a pixel 6R, and the pixel 6 that emits light that constitutes the second image is also referred to as a pixel 6L. The pixel 6R is configured by three different color sub-pixels 4R (4r, 4g, 4b), and the pixel 6L is configured by three different color sub-pixels 4L (4r, 4g, 4b). The pixel 6R corresponds to the first pixel, and the pixel 6L corresponds to the second pixel.

  The parallax barrier 50 is disposed on the observation side of the sub-pixel 4. The parallax barrier 50 includes a light shielding part 51 that shields light and an opening 52 that allows light to pass through. In FIG. 2 and FIG. 4, constituent elements other than those necessary for the description are omitted. 2 and 5, the shape of each opening 52 is shown as a rectangle, but the shape of the opening 52 in the parallax barrier 50 is not uniform, and the openings 52 having different shapes are mixed. The shape of the opening 52 will be described in detail later.

  As shown in FIG. 4, the parallax barrier 50 is disposed substantially parallel to the observation side surface of the liquid crystal panel 1. The light emitted from the sub-pixel 4R and passing through the opening 52 is visually recognized in the display angle range 3R that is unevenly distributed to the right in FIG. Similarly, the light emitted from the sub-pixel 4L and passing through the opening 52 is visually recognized in the display angle range 3L that is unevenly distributed to the left in FIG.

  In the display angle range VR of the display angle range 3R, only light from the sub pixel 4R is visually recognized, and in the display angle range VL of the display angle range 3L, only light from the sub pixel 4L is visually recognized. Therefore, only the first image is visually recognized in the display angle range VR, and only the second image is visually recognized in the display angle range VL. In the display angle range VC, both the first image and the second image are visually recognized. Thus, the parallax barrier 50 functions as a barrier that displays the first image and the second image in different directions.

  According to the liquid crystal device 100 capable of directivity display, for example, by locating different observers in the display angle ranges VR and VL, the first and second images can be simultaneously viewed by the different observers. be able to. Alternatively, if the viewer's right eye and left eye are respectively positioned in the display angle ranges VR and VL, the first image is incident on the right eye and the second image is incident on the left eye. Display can be made.

  As shown in FIG. 5, the parallax barrier 50 includes a light shielding part 51 and openings 52 arranged two-dimensionally corresponding to the sub-pixels 4 (see FIG. 2). In the row direction, an opening cycle 53H composed of a predetermined number of openings 52 is repeatedly arranged. In the column direction, opening cycle 53V configured by a predetermined number of openings 52 is repeatedly arranged. Further, the opening cycle 53H adjacent in the column direction is arranged so as to be shifted by a half of the arrangement pitch of the openings 52 in the row direction. The parallax barrier 50 is a so-called step barrier in which the openings 52 are arranged in a step shape.

  The opening cycle 53H is composed of, for example, 151 rows of openings 52. In the opening cycle 53H, the openings 52 are arranged at a substantially equal pitch. More specifically, the rows 1 to 150 are arranged at an equal pitch, for example, a pitch of 0.120 μm, and the row 151 is arranged at a different pitch, for example, a pitch of 0.119 μm. That is, two different types of arrangement pitches are mixed as the arrangement pitch of the openings 52 in the opening cycle 53H.

  On the other hand, the opening part cycle 53V is constituted by, for example, 123 openings 52. In the opening cycle 53V, the openings 52 are arranged at a substantially equal pitch. More specifically, rows 1 to 122 are arranged at an equal pitch, for example, a pitch of 0.163 μm, and rows 123 are arranged at a different pitch, for example, a pitch of 0.162 μm. As the arrangement pitch of the openings 52 in the opening cycle 53V, two different arrangement pitches are mixed.

  Here, for example, in the case where the viewer's right eye and left eye are positioned in the display angle ranges VR and VL in FIG. 4, the distance between the viewer's right eye and left eye is E (not shown), and the sub-pixel 4. Is P, the ideal arrangement pitch B of the openings 52 is obtained by B = 2PE / (P + E). In the opening cycle 53H and the opening cycle 53V, the openings 52 are desirably formed at this ideal arrangement pitch B.

  However, it is often difficult to form the openings 52 of the parallax barrier 50 with an ideal arrangement pitch B in terms of processing capability in the manufacturing process. Therefore, by mixing a plurality of different arrangement pitches that can be manufactured, the average arrangement pitch of the openings 52 is brought close to the ideal arrangement pitch B in each of the opening cycle 53H and the opening cycle 53V.

For example, the ideal arrangement pitch B of the openings 52 in the row direction is set to 0.119993 μm. The average arrangement pitch Ba of the openings 52 in the opening cycle 53H is obtained by the following formula, and is the same value as the ideal arrangement pitch B.
Ba = (0.120 × 150 + 0.119) / 151
The average arrangement pitch Ba of the openings 52 in the opening cycle 53V is obtained in the same manner.

  Next, a design configuration of the shape and arrangement of the opening 52 will be described with reference to FIGS. 6, 7, 8, and 9. 6, FIG. 7, FIG. 8, and FIG. 9 are diagrams illustrating the design configuration of the opening in the parallax barrier according to the first embodiment. Specifically, FIG. 6A is a plan view showing a basic shape of the opening 52, and FIG. 6B is a plan view showing an example of a different shape of the opening 52. 7, 8, and 9 are diagrams for explaining the shape and arrangement of the openings in the opening cycle 53H and the opening cycle 53V. In FIGS. 7 and 9, the openings 52 adjacent in the column direction are shown in one row (without being shifted by a 1/2 pitch in the row direction) in order to easily show the shape and arrangement of the openings.

  As shown in FIG. 6A, the basic shape of the opening 52 includes a short side 52a as a first side and a long side 52b as a second side located in a direction intersecting the short side 52a. It has a rectangle. The length of the short side 52a is, for example, 0.030 μm, and the length of the long side 52b is, for example, 0.106 μm. If the region of the opening 52 is virtually divided by a line parallel to the short side 52a (indicated by a broken line in FIG. 6A), for example, with a width of 0.001 μm, the opening 52 is divided by these lines. It can be considered that 106 small areas 52c each having a size of 0.001 μm × 0.030 μm are gathered. The openings 52 arranged in the row 151 (see FIGS. 7 and 9) of the opening cycle 53H have a rectangular shape shown in FIG.

  The opening 52 shown in FIG. 6 (b) has a predetermined number of small regions 52c out of the 106 small regions 52c with a predetermined length on a predetermined side with respect to the rectangle shown in FIG. 6 (a). For example, it has a shape moved in parallel to the short side 52a by 0.001 μm. Thus, it can be said that the opening 52 having a shape different from the basic shape has a polygonal shape combining two rectangles.

  As shown in FIG. 7, in the opening 52 in the row 1 of the opening cycle 53H, one of the small regions 52c on one short side 52a side is parallel to the short side 52a with respect to the basic shape of the opening 52. In addition, it has a shape moved 0.001 μm toward the row 151 side of the adjacent opening cycle 53H. Here, the length of the short side 52a (see FIG. 6) of the opening 52 is 0.030 μm, and the openings 52 other than the row 151 are arranged at an equal pitch of 0.120 μm. The interval between the opening 52 in the row 151 of the opening cycle 53H adjacent to the portion 52 is 0.090 μm. In the opening 52 of the row 1, in the portion where the small region 52c has moved to the row 151 side of the adjacent opening cycle 53H, the distance from the opening 52 in the adjacent row 151 is 0.089 μm, which is different from the other portions. Become.

  Next, the opening 52 in the row 2 of the opening cycle 53H is such that the small region 52c adjacent to the small region 52c moved in the row 1 is parallel to the short side 52a with respect to the shape of the opening 52 in the row 1. It has a shape moved to the row 1 side. Therefore, in the opening 52 in the row 2, in the portion where the small region 52c is newly moved with respect to the opening 52 in the row 1, the distance from the opening 52 in the row 1 is 0.089 μm, and the other portion 0 Different from 0.090 μm.

  The openings 52 in the row 3 have the same shape as the openings 52 in the row 2 without the movement of the small region 52 c with respect to the openings 52 in the row 2. In addition, the opening 52 in the row 4 has a shape in which one small region 52 c is moved with respect to the opening 52 in the row 3, and the opening 52 in the row 5 further includes the opening 52 in the row 4. The small region 52c has a shape moved by one. The openings 52 in the row 6 have the same shape as the openings 52 in the row 5 without moving the small region 52 c with respect to the openings 52 in the row 5.

  In FIG. 8, the shape of the opening 52 in each column of the opening cycle 53H from 1 to 151 is shown in a comparison table of the column number, the number of newly moved small regions, and the number of all moved small regions. Yes. The number of newly moved small areas refers to the number of small areas 52c newly moved at the openings 52 in the column n with respect to the openings 52 in the line n-1. Further, the total number of small areas moved means the number of all small areas 52c moved from column 1 to column n.

  As shown in FIG. 8, within the opening cycle 53H from the row 1 to the row 151, the small regions 52c obtained by dividing the region of the opening 52 by a width of 0.001 μm are moved one by one, and finally 106 All the small areas 52c are moved. Thus, by sequentially increasing the number of moved small regions 52c, the shape of the opening 52 varies depending on the column.

  However, since the 106 small regions 52c are moved one by one within the 151 columns, there are columns in which the small regions 52c do not move about once every three or four columns between the columns 1 and 151. That is, in the openings 52 arranged in the opening cycle 53H, the number of small regions 52c increases in a state where there are a plurality of portions, and the shapes of the openings 52 are the same between adjacent rows. There are cases.

  As shown in FIG. 9, in the openings 52 in the row 150, 105 small regions 52 c move 0.001 μm toward the row 149, and the remaining one small region 52 c is 0 with respect to the openings 52 in the row 149. It is in a state of being arranged at a pitch of 120 μm. And in the opening part 52 in the row | line | column 151, all 106 small area | regions 52c, ie, the whole area | region of the opening part 52, moved 0.001 micrometer to the row | line | column 150 side. That is, the openings 52 in the row 151 are substantially arranged at a pitch of 0.119 μm with respect to the openings 52 in the row 150. As a result, the openings 52 in the row 151 have a rectangular shape having a short side 52a and a long side 52b, which are basic shapes.

  6, 7, and 9, the number of small regions 52 c (number of broken lines) is small in order to show the design configuration method in an easy-to-understand manner. The small region 52c is a virtual section as a structural unit in design, and the opening 52 in the parallax barrier 50 does not have a break indicated by a broken line in FIGS.

  As described above, the parallax barrier 50 according to the present embodiment includes the openings 52 having various shapes in the opening cycle 53H. Further, by making the shape of the opening 52 a shape obtained by moving a predetermined number of small regions 52c obtained by virtually dividing the region of the opening 52, the difference in shape between the adjacent openings 52 is as follows. It is small enough to be hardly recognized by the observer. Note that the arrangement of the openings 52 in the opening cycle 53H in each of the rows 1 to 123 is common.

  By the way, in the parallax barrier in which openings having the same shape are arranged at a plurality of different arrangement pitches as in the conventional configuration, the ideal arrangement pitch of the openings based on the arrangement pitch of the sub-pixels and the actual arrangement pitch Due to the deviation, a difference occurs in the intensity of light passing through each opening of the parallax barrier and traveling toward the viewer. Therefore, the light that has passed through each opening interferes with each other, causing streaky unevenness (interference fringes), which may be visually recognized by an observer. In addition, crosstalk occurs in which the light contributing to the display of the other image is mixedly viewed from the viewing direction in which the light contributing to the display of one of the first image and the second image is viewed. Sometimes. The occurrence of such streaky unevenness and crosstalk causes a reduction in display quality in an electro-optical device such as a liquid crystal device.

  On the other hand, the parallax barrier 50 according to the present embodiment includes openings 52 having various shapes with small differences that are hardly recognized by an observer in the opening cycle 53H located in the row direction. . For this reason, even if there is a deviation between the arrangement pitch of the openings 52 in the row direction and the ideal arrangement pitch, the deviation amount is dispersed in the opening cycle 53H. Less noticeable. Thereby, since interference of light that has passed through each opening in the row direction can be suppressed, the occurrence of streak-like unevenness can be suppressed as compared with a parallax barrier having a conventional configuration. Similarly, occurrence of crosstalk can be suppressed as compared with a parallax barrier having a conventional configuration. As a result, the liquid crystal device 100 with high display quality can be provided.

  Note that the configurations of the parallax barrier 50 and the liquid crystal device 100 in the present embodiment are also applicable to electro-optical devices that display different images in three or more different directions.

(Second Embodiment)
<Parallax barrier>
Next, the liquid crystal device according to the second embodiment is different from the liquid crystal device according to the first embodiment in the configuration of the parallax barrier, but the other configurations are the same. The parallax barrier according to the second embodiment is different from the parallax barrier according to the first embodiment in the shape and arrangement of the openings, but the other configurations are the same. Therefore, here, the shape and arrangement of the opening of the parallax barrier according to the second embodiment will be described. Constituent elements common to the first embodiment are denoted by the same reference numerals and description thereof is omitted.

  10, FIG. 11, FIG. 12, and FIG. 13 are diagrams illustrating the design configuration of the opening in the parallax barrier according to the second embodiment. Specifically, FIG. 10A is a plan view showing a basic shape of the opening 54, and FIG. 10B is a plan view showing an example of a different shape of the opening 54. 11, FIG. 12, and FIG. 13 are diagrams for explaining the shape and arrangement of the openings in the opening cycle 53H and the opening cycle 53V.

  As shown in FIGS. 11 and 13, the parallax barrier 55 according to the second embodiment is similar to the parallax barrier 50 according to the first embodiment, and 151 columns of openings 54 arranged in the row direction. And an opening cycle 53V including 123 rows of openings 54 arranged in the column direction. The parallax barrier 55 is a step barrier in which the openings 54 are arranged in a step shape. In FIGS. 11 and 13, the openings 54 adjacent in the column direction are shown in a row (without being shifted by ½ pitch in the row direction) for easy understanding of the shape and arrangement of the openings 54. .

  In the opening cycle 53H, the openings 54 are arranged at an equal pitch of 0.120 μm from the rows 1 to 150, and the rows 151 are arranged at a pitch of 0.119 μm. In the opening cycle 53V, the openings 54 are arranged from row 1 to row 122 at an equal pitch of 0.163 μm, and row 123 is arranged at a pitch of 0.162 μm.

  As shown in FIG. 10A, the basic shape of the opening 54 is the same as the opening 52 provided in the parallax barrier 50 according to the first embodiment, and a short side 54a having a length of 0.030 μm and a length. Is a rectangle having a long side 54b of 0.106 μm. If the region of the opening 54 is virtually divided by a line parallel to the long side 54b (indicated by a broken line in FIG. 10A), for example, with a width of 0.001 μm, the opening 54 is formed by these lines. It can be considered that 30 divided small regions 54c of 0.106 μm × 0.001 μm are gathered. The openings 54 arranged in the row 1, row 2, and row 3 (see FIG. 11) of the opening cycle 53V have a rectangular shape shown in FIG.

  In the opening 54 shown in FIG. 10B, a predetermined number of small regions 54c out of 30 small regions 54c have a predetermined length on a predetermined side, for example, with respect to the rectangle shown in FIG. It has a shape moved in parallel to the long side 54b by 0.001 μm. Thus, it can be said that the opening 54 having a shape different from the basic shape has a polygonal shape combining two rectangles.

  In FIG. 12, the shape of the opening 54 in each line from 1 to 123 of the opening cycle 53V is compared with the row number, the number of newly moved small areas 54c, and the number of all moved small areas 54c. Is shown. As shown in FIG. 12, in the opening cycle 53V from row 1 to row 123, the small regions 54c obtained by dividing the region of the opening 54 by a width of 0.001 μm are moved one by one, and finally 30 All the small areas 54c are moved. In this way, the shape of the opening 54 varies from row to row by sequentially increasing the number of moved small regions 54c.

  However, since the 30 small regions 54c are moved one by one in 123 rows, the small region 54c moves from row 1 to row 123 at a rate of about once every four rows. That is, in the openings 54 arranged in the opening cycle 53V, the number of small regions 54c increases in a state where there are a plurality of portions, and the shapes of the openings 54 are the same between adjacent rows. Exists.

  As shown in FIG. 11, the opening 54 in row 4, row 5, row 6, and row 7 has one of the small regions 54c on the side of one long side 54b in the long side with respect to the basic shape of the opening 54. It is shaped parallel to 54b and moved 0.001 μm to the row 3 side of the opening cycle 53V. Here, the length of the long side 54b (see FIG. 10) of the opening 54 is 0.106 μm, and the openings 54 other than the row 123 are arranged at an equal pitch of 0.163 μm. The interval between the portion 54 and the opening 54 in the adjacent row 4 is 0.057 μm. In the opening 54 of the row 4, in the portion where the small region 54 c has moved to the adjacent row 3 side, the distance from the opening 54 in the adjacent row 3 is 0.056 μm, unlike the other portions.

  As shown in FIG. 13, in the openings 54 from the row 116 to the row 119, the 29 small regions 54c are moved by 0.001 μm toward the adjacent row 115 (not shown). In the opening portion 54 in the row 120, 30 small regions 54c, that is, the entire region of the opening portion 54 is moved to the row 119 side by 0.001 μm. That is, the openings 54 in the row 120 are substantially arranged at a pitch of 0.162 μm. The openings 54 in the rows 121 to 123 have the same shape as the openings 54 in the row 120 and are arranged at a pitch of 0.163 μm.

  In FIG. 10, FIG. 11, and FIG. 13, the number of small regions 54c (the number of broken lines) is reduced to show the design configuration method in an easy-to-understand manner. The small area 54c is a virtual section as a structural unit in design, and the opening 54 in the parallax barrier 55 does not have a break indicated by a broken line in FIGS. 10, 11, and 13.

  As described above, the parallax barrier 55 according to this embodiment includes the openings 54 having various shapes in the opening cycle 53V. In addition, by making the shape of the opening 54 a shape obtained by moving a predetermined number of small regions 54c obtained by virtually dividing the region of the opening 54, the difference in shape between the adjacent openings 54 is as follows. It is small enough to be hardly recognized by the observer. The arrangement of the openings 54 in the opening cycle 53V in each column from the column 1 to the column 151 is common.

  The parallax barrier 55 according to the present embodiment includes openings 54 having various shapes with small differences that are hardly recognized by an observer in the opening cycle 53V positioned in the column direction. For this reason, even if there is a deviation between the arrangement pitch of the openings 54 in the column direction and the ideal arrangement pitch, the deviation amount is dispersed in the opening cycle 53V. Less noticeable. As a result, interference of light that has passed through each opening in the row direction can be suppressed, so that the occurrence of streaky unevenness can be suppressed as compared with a parallax barrier having a conventional configuration. Similarly, occurrence of crosstalk can be suppressed as compared with a parallax barrier having a conventional configuration.

(Third embodiment)
<Parallax barrier>
Next, the liquid crystal device according to the third embodiment is different from the liquid crystal device according to the above embodiment in the configuration of the parallax barrier, but the other configurations are the same. The parallax barrier according to the third embodiment is different from the parallax barrier according to the above-described embodiment in the shape and arrangement of the openings, but the other configurations are the same. Therefore, here, the shape and arrangement of the opening of the parallax barrier according to the third embodiment will be described. Constituent elements common to the above-described embodiment are denoted by the same reference numerals and description thereof is omitted.

  FIG. 14, FIG. 15, FIG. 16, and FIG. 17 are diagrams for explaining the design configuration of the opening in the parallax barrier according to the third embodiment. Specifically, FIG. 14 is a diagram illustrating the shape of the opening. FIGS. 15, 16, and 17 are diagrams illustrating the shape and arrangement of the openings in the opening cycle 53H and the opening cycle 53V.

  As shown in FIGS. 15, 16, and 17, the parallax barrier 57 according to the third embodiment is the same as the parallax barrier 50 according to the first embodiment and the parallax barrier 55 according to the second embodiment. In addition, an opening cycle 53H composed of 151 columns of openings 56 arranged along the row direction and an opening cycle 53V composed of 123 rows of openings 56 arranged along the column direction Have. The parallax barrier 57 is a step barrier in which the openings 56 are arranged in a step shape. 15, 16, and 17, in order to show the shape and arrangement of the openings 56 in an easy-to-understand manner, adjacent openings 56 in the column direction are arranged in a row (without shifting by 1/2 pitch in the row direction). It is shown.

  In the opening cycle 53H, the openings 56 are arranged at an equal pitch of 0.120 μm from the rows 1 to 150, and the rows 151 are arranged at a pitch of 0.119 μm (see FIG. 17). In the opening cycle 53V, the openings 56 are arranged at an equal pitch of 0.163 μm from row 1 to row 122, and the row 123 is arranged at a pitch of 0.162 μm (FIG. 16, FIG. 17).

  The parallax barrier 57 according to the third embodiment is different from the parallax barrier 50 according to the first embodiment and the parallax barrier 55 according to the second embodiment. The arrangement of the openings 56 in the opening cycle 53V in the partial cycle 53H and in each column from the column 1 to the column 151 is not common, but the arrangement of the openings 56 in the adjacent columns or rows is the same There is.

  The basic shape of the opening 56 is 0.030 μm in length, similar to the opening 52 provided in the parallax barrier 50 according to the first embodiment and the opening 54 provided in the parallax barrier 55 according to the second embodiment. This is a rectangle having a short side 56a and a long side 56b having a length of 0.106 μm. The opening 56 (see FIG. 15) disposed at a position where the column 151 of the opening cycle 53H and the row 1, row 2, and row 3 of the opening cycle 53V intersect has a rectangular shape that is a basic shape. .

  When the region of the opening 56 is virtually divided by a line parallel to the short side 56a and a line parallel to the long side 56b (shown by a broken line in FIG. 14A), for example, with a width of 0.001 μm, respectively. Then, the opening 56 can be regarded as a collection of 106 × 30 small regions 56c of 0.001 μm × 0.001 μm separated by these lines.

  FIG. 14A is a plan view showing the opening 56 arranged at a position where the column 151 of the opening cycle 53H intersects the row 4 of the opening cycle 53V. The opening 56 shown in FIG. 14A is a small region 56c1 that has moved from one end of the long side 56b on the column 150 (not shown) side to the other end of the same long side 56b with respect to the rectangle that is the basic shape. Has a shape protruding from the short side 56a toward the row 3 (see FIG. 15) side. The shape of the opening 56 is the same as the shape of the opening 54 in the row 4 shown in FIG. 11, and 106 small regions 56c positioned in a row are parallel to the long side 56b by 0.001 μm on the row 3 side. It can also be said that the shape has been moved to.

  FIG. 14B is a plan view showing the opening 56 arranged at a position where the column 1 of the opening cycle 53H and the row 4 of the opening cycle 53V intersect. In the opening 56 shown in FIG. 14B, the small region 56c1 shown in FIG. 14A and the 30 small regions 56c located in a line on the row 3 side are 0.001 μm in parallel to the short side 56a. Only the shape moved to the column 150 side. Thus, the opening 56 having a shape different from the basic shape has a polygonal shape in which a plurality of rectangles are combined.

  As shown in FIG. 15, the openings 56 in the row 1 are arranged in such a manner that, in each column of the opening cycle 53H, 30 small regions 56c arranged in a line along the short side 56a as one unit. It has a shape moved by 0.001 μm parallel to 56a. The same applies to row 2 and row 3. Therefore, the shape and arrangement of the opening 56 in the opening cycle 53H in the rows 1 to 3 are the same as the shape and arrangement of the opening 52 in the opening cycle 53H in the parallax barrier 50 of the first embodiment. ing.

  On the other hand, the openings 56 in the column 151 are sequentially set in parallel to the long sides 56b with 106 small regions 56c arranged in a line along the long sides 56b as one unit in each row of the opening cycle 53V. It has a shape moved by 001 μm. Therefore, the shape and arrangement of the opening 56 in the opening cycle 53V in the row 151 are the same as the shape and arrangement of the opening 54 in the opening cycle 53V in the parallax barrier 55 of the second embodiment.

  Next, when looking from row 4 to row 7, the opening 56 in the column 151 has the shape shown in FIG. 14A, and the opening 56 in the column 1 has the shape shown in FIG. 14B. Have. Then, the openings 56 in the row 2 are moved 0.001 μm further in parallel with the short sides 56a by 30 small regions 56c located in a row along the short side 56a with respect to the openings 56 in the row 1. Shape. The same applies to column 3. With respect to the openings 56 in the row 4, the 30 small regions 56c located in one row along the short side 56a move further by 0.001 μm parallel to the short side 56a with respect to the openings 56 in the rows 2 and 3. Shape.

  As described above, the opening cycle 53H in the row 4 to the row 7 is arranged in a line along the short side 56a in addition to the small region 56c1 protruding from the short side 56a with respect to the opening 56 in the column 151. With 30 small regions 56c as one unit, it has a shape moved by 0.001 μm parallel to the short side 56a. The opening cycle 53H in each row after the row 8 has the same configuration.

  As shown in FIG. 16, one opening cycle 53V ends at row 123, and one opening cycle 53H ends at column 151 as shown in FIG. Here, in the opening 56 arranged at the position where the row 120 and the column 151 intersect, the 106 × 30 small regions 56c, that is, the entire region of the opening 56 is 0.001 μm on the column 150 side in the row direction. It has moved and moved 0.001 μm to the row 119 side in the column direction. That is, the openings 56 at this position are arranged at a pitch of substantially 0.119 μm in the row direction and are arranged at a pitch of substantially 0.162 μm in the column direction.

  From row 121 to row 123 and from row 1 to row 3 in the next opening cycle 53V, the openings 56 are arranged at an equal pitch of 0.120 μm in the row direction, and the opening cycle 53H in each row is the same as row 120 It has the composition of.

  By the way, in the opening portion 56 arranged at the position where the row 116 to the row 119 intersect with the column 149 and the column 150 shown in FIG. 17, the small region 56c2 protrudes from the short side 56a and the long side 56b and is in an isolated state. Yes. When the small region 56c2 is isolated as described above, the small region 56c2 may not be formed as a part of the region of the opening 56 if the processing capability in the manufacturing process is difficult.

  In FIG. 14, FIG. 15, FIG. 16, and FIG. 17, the number of small regions 56c (the number of broken lines) is reduced to show the design configuration method in an easy-to-understand manner. Further, the small area 56c is a virtual section as a structural unit in design, and the opening 56 in the parallax barrier 57 does not have a break indicated by a broken line in FIGS. 14, 15, 16, and 17.

  As described above, the parallax barrier 57 of the present embodiment includes the openings 56 having various shapes in the opening cycle 53H in the row direction and the opening cycle 53V in the column direction. Further, the openings 56 are formed adjacent to each other in both the row direction and the column direction by moving the predetermined number of small areas 56c obtained by virtually dividing the area of the openings 56. The difference in shape between the 56 is so small that the observer hardly recognizes it.

  For this reason, the parallax barrier 57 according to the present embodiment has a deviation even if there is a deviation between the arrangement pitch of the openings 56 in one or both of the row direction and the column direction and the ideal arrangement pitch. The amount is dispersed and less noticeable. Thereby, interference of light that has passed through each opening in the row direction and the column direction can be suppressed, so that occurrence of streak-like unevenness in both the row direction and the column direction can be suppressed as compared with a parallax barrier having a conventional configuration. Similarly, occurrence of crosstalk can be suppressed as compared with a parallax barrier having a conventional configuration.

(Electronics)
The liquid crystal device 100 described above can be used by being mounted on a display device 500 for a car navigation system as an electronic device as shown in FIG. 18, for example. In the display device 500, the liquid crystal device 100 incorporated in the display unit 510 can directionally display two images in different display angle ranges. For example, a map image can be displayed on the driver's seat side, and a movie image can be displayed on the passenger seat side. At that time, it is possible to perform display with higher quality in which generation of streaky unevenness and crosstalk is suppressed.

  The liquid crystal device 100 can be used for various electronic devices such as a mobile computer, a digital camera, a digital video camera, an in-vehicle device, and an audio device in addition to the display device 500.

  As mentioned above, although embodiment of this invention was described, various deformation | transformation can be added with respect to the said embodiment in the range which does not deviate from the meaning of this invention. As modifications, for example, the following can be considered.

(Modification 1)
In the parallax barrier provided in the liquid crystal device of the above embodiment, the opening is a step barrier arranged in a step shape, but the present invention is not limited to this mode. The parallax barrier may be a stripe barrier having openings arranged in a stripe shape.

  FIG. 19 is a diagram illustrating a parallax barrier according to the first modification. Constituent elements common to the above-described embodiment are denoted by the same reference numerals and description thereof is omitted. As illustrated in FIG. 19, the parallax barrier 60 according to the first modification includes a light shielding unit 61, an opening cycle 63 </ b> H configured by 151 columns of openings 62 arranged in the row direction, and the column direction. The opening cycle 63V is composed of 123 rows of openings 62 arranged in a row. The parallax barrier 60 is a so-called stripe barrier in which the openings 62 are arranged in a line along the column direction.

  The configurations of the opening cycle 63H and the opening cycle 63V in the parallax barrier 60 are the same as the opening cycle 53H and the opening cycle 53V, respectively. The shape and arrangement of the openings in the parallax barrier 60 are the same as any of the parallax barrier 50 according to the first embodiment, the parallax barrier 55 according to the second embodiment, and the parallax barrier 57 according to the third embodiment. There may be.

  Even when the openings 62 are arranged in a line along the column direction as in the parallax barrier 60, the interference of light that has passed through the openings can be suppressed, as in the above-described embodiment. Is suppressed, and the occurrence of crosstalk is suppressed.

(Modification 2)
In the parallax barrier provided in the liquid crystal device of the above embodiment, the opening region is virtually divided into small regions of the same size, and the opening shape is a predetermined number in the opening cycle in the row direction or the column direction. Although it was the structure made into the shape which moved the small area | region, it is not limited to this form. The area of the opening may be virtually divided into small areas having different sizes, and the shape of the opening may be formed by a combination of these small areas.

(Modification 3)
In the parallax barrier provided in the liquid crystal device of the above embodiment, a small region obtained by virtually dividing the region of the opening is formed on one short side or one long side of the opening in the row or column opening cycle. However, the present invention is not limited to this configuration. A shape in which a small area obtained by virtually dividing the area of the opening is sequentially moved sequentially from one short side and the other short side of the opening, or from one long side and the other long side. Also good. Or it is good also as a shape made to move alternately toward the both ends from the center part of a short side or the center part of a long side.

(Modification 4)
In the parallax barrier provided in the liquid crystal device of the above embodiment, the basic shape of the opening is rectangular, but the present invention is not limited to this. The basic shape of the opening may be a parallelogram or another polygon.

(Modification 5)
In the above embodiment, the liquid crystal device is a TN liquid crystal device, but is not limited to this mode. The liquid crystal device is a liquid crystal device such as a VA (Vertical Alignment) method or an ECB (Electrically Controlled Birefringence) method in which the alignment of liquid crystal molecules is controlled by a vertical electric field generated between the element substrate and the counter substrate as in the TN method. May be. The liquid crystal device may be an FFS (Fringe-Field Switching) type or IPS (In-Plane Switching) type liquid crystal device that controls the alignment of liquid crystal molecules by a lateral electric field. Further, the liquid crystal device may be a transflective liquid crystal device having a transmissive display area and a reflective display area. Even in these liquid crystal devices, the configuration of the liquid crystal device of the above embodiment can be applied.

(Modification 6)
In the above embodiment, the electro-optical device is a liquid crystal device, but is not limited to this mode. The electro-optical device may be an organic electroluminescence device (organic EL device) including an organic electroluminescence element (organic EL element), a plasma display device including a plasma display element, or the like. Even in these electro-optical devices, the configuration of the electro-optical device of the above-described embodiment can be applied.

  DESCRIPTION OF SYMBOLS 1 ... Liquid crystal panel, 2 ... Display area, 3L, 3R, VL, VR ... Display angle range, 4 ... Sub pixel, 6 ... Pixel, 10 ... Element substrate, 30 ... Opposite substrate, 32 ... Light shielding layer, 40 ... Liquid crystal layer , 41 ... Sealing agent, 42 ... Driver IC, 44 ... Polarizing plate, 45 ... Polarizing plate, 46 ... Back light, 50, 55, 57, 60 ... Parallax barrier, 51 ... Light-shielding part, 52, 54, 56 ... Opening 52a, 54a, 56a ... short side, 52b, 54b, 56b ... long side, 52c, 54c, 56c ... small region, 53H, 53V, 63H, 63V ... opening cycle, 61 ... light shielding portion, 62 ... opening portion, DESCRIPTION OF SYMBOLS 100 ... Liquid crystal device, 500 ... Display apparatus, 510 ... Display part.

Claims (8)

An electro-optical panel in which at least a first pixel that emits light constituting the first image and a second pixel that emits light constituting the second image are two-dimensionally arranged;
The electro-optical panel is disposed on a side from which light constituting the first image and light constituting the second image are emitted, and corresponds to the first pixel and the second pixel. A light-shielding optical filter having openings arranged, and
The opening of the optical filter is formed in a polygonal shape having a first side and a second side located in a direction intersecting the first side, and the first side Are arranged at substantially equal pitches in an arrangement direction along at least one of the second sides,
An electro-optical device, wherein the openings are not uniform in the arrangement direction. The electro-optical device according to claim 1,
The electro-optical device, wherein the openings are arranged at substantially equal pitches in both the arrangement direction along the first side and the arrangement direction along the second side. The electro-optical device according to claim 1, wherein
In the arrangement direction, the opening formed in a rectangular shape having the first side and the second side, and a part of the rectangular shape is another part of the rectangular shape. An electro-optical device characterized in that the opening formed in a shape moved by a predetermined length to a predetermined side along the arrangement direction with respect to a region coexists. The electro-optical device according to claim 3,
The partial region is a small region in which the rectangular region is virtually divided into a plurality by at least one of a line parallel to the first side and a line parallel to the second side. An electro-optical device comprising a combination. The electro-optical device according to claim 4,
The electro-optical device, wherein the number of the small regions constituting the partial region sequentially increases in the openings arranged along the arrangement direction. The electro-optical device according to claim 4,
The number of the small regions constituting the partial region increases in a state where there are a plurality of the same number of portions in the openings arranged along the arrangement direction. apparatus. The electro-optical device according to any one of claims 1 to 6,
It is composed of a predetermined number of the openings arranged along the arrangement direction, and includes an opening cycle arranged repeatedly along the arrangement direction,
An electro-optical device, wherein the shape of the opening is not uniform in the opening cycle.   An electronic apparatus comprising the electro-optical device according to claim 1.

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