Display device and its driving method

Abstract

The present invention provides a display device and a driving method thereof. The display panel includes a plurality of pixel islands arranged in an array along the row direction and the column direction, and each pixel island includes n sub-pixels arranged at intervals along the row direction. The light splitting element is located on the display side of the display panel, includes a plurality of light splitting repeating units extending along the column direction and continuously arranged along the row direction, the repeating unit includes M light splitting structures extending along the column direction and continuously arranged along the row direction, each spectral repeating unit corresponds to covering K columns of pixel islands, and the main lobe viewing angles formed by the emitted light are not equal. The K×n sub-pixels have a projection width of 2 / 3 or more of the pupil at the optimal viewing distance of the display device.

Description

Technical Field

[0001] The present invention relates to the field of display technologies, and in particular, to a display device and a driving method thereof.

Background Art

[0002] With the continuous development of display technologies, three-dimensional (3D) display technologies have attracted increasing attention. With 3D display technologies, display images can be made three-dimensional and realistic. The principle is that when the left eye and the right eye of a human receive a left-eye image and a right-eye image with a certain parallax respectively, the brain overlaps and fuses the received parallax images to construct a visual display effect of a 3D image.

[0003] However, existing 3D display products have the problem of visual fatigue.

Summary of the Invention

[0004] The display device provided by an embodiment of the present invention includes a display panel and a light splitting element disposed on the display side of the display panel, the display panel includes a plurality of pixel islands arranged in an array along a row direction and a column direction, each pixel island includes n sub-pixels arranged at intervals along the row direction, where n is an integer greater than 1, the light splitting element includes a plurality of light splitting repeating units extending along the column direction and continuously arranged along the row direction, the light splitting repeating unit includes M light splitting structures extending along the column direction and continuously arranged along the row direction, each light splitting repeating unit correspondingly covers K columns of pixel islands, M and K are not the same, and the projection width of the main lobe viewing angle formed by the light emitted from the K*n sub-pixels at the optimal viewing distance of the display device is not less than 2 / 3 of the inter-pupillary distance.

[0005] In some embodiments, K×n and M are relatively prime to each other.

[0006] In some embodiments, after the light emitted from the light-emitting regions of each sub-pixel within K pixel islands is split by M light-splitting structures, a spatially continuous light-emitting region is formed.

[0007] In some embodiments, in the horizontal direction, the widths of the M light-splitting structures are the same as the widths of the K columns of the pixel islands.

[0008] In some embodiments, the sub-pixel includes a sub-pixel opening region, and in the row direction, the ratio of the total width of n sub-pixel opening regions to the width of the pixel island is 0.9 / M or more and 1 or less.

[0009] In some embodiments, in the row direction, the ratio of the width of the sub-pixel opening region to the width of the pixel island is i / M, where i is an integer greater than 1 and less than or equal to M - 1.

[0010] In some embodiments, i = 1, and in the row direction, the light-emitting regions of each sub-pixel within the K pixel islands are spatially complementarily joined.

[0011] In some embodiments, i > 1, and in the row direction, the light-emitting regions of each sub-pixel within the K pixel islands spatially overlap.

[0012] In some embodiments, in the row direction, the light-emitting regions of each sub-pixel within the K pixel islands spatially overlap uniformly.

[0013] In some embodiments, in the row direction, the absolute value of the difference in the widths of different sub-pixel opening regions is 2.5 μm or less.

[0014] In some embodiments, the display device further includes a spacer dielectric layer disposed between the light-splitting element and the display panel.

[0015] In some embodiments, the light-splitting structure is a cylindrical lens.

[0016] In some embodiments, the cylindrical lens includes a first resin layer having protrusions and a planarizing resin layer disposed on a side of the first resin layer away from the display panel, and the refractive index of the planarizing resin layer is smaller than the refractive index of the first resin layer.

[0017] In some embodiments, the cylindrical lens is a liquid crystal lens.

[0018] In some embodiments, the radius of curvature of the cylindrical lens is 1.01r or more and 1.22r or less, Here,

[0019]

Number

[0020] n1 is the refractive index of the first resin layer or the extraordinary-ray refractive index of the liquid crystal lens, n2 is the refractive index of the planarizing resin layer or the ordinary-ray refractive index of the liquid crystal lens, n3 is the refractive index of the spacer dielectric layer, L1 is the optimal viewing distance of the display device, P1 is the width of the cylindrical lens in the row direction, and W is the projection width of the main lobe viewing angle formed by the light emitted from the sub-pixel at the optimal viewing distance.

[0021] In some embodiments, M is 3, K is 1, n is 10, or M is 3, K is 1, n is 32, or M is 3, K is 2, n is 32, or M is 3, K is 4, n is 32.

[0022] In some embodiments, every three of the pixel islands continuously arranged in the column direction form one pixel repeating unit, Within one pixel repeating unit, the display colors of the sub-pixels of the same pixel island are the same, and the display colors of the sub-pixels of different pixel islands are different.

[0023] In some embodiments, the display device further includes an eye-tracking system used to determine the position of the user's eyes in real time.

[0024] The driving method of the display device provided by the embodiments of the present invention is as follows: In the 2D display mode, based on the image in the display standby state, a first image driving signal corresponding to each pixel island is determined, and in order to form a 2D image, the corresponding first image driving signal is loaded to all the sub-pixels within the pixel island. In the 3D display mode, the user's gaze area and non-gaze area in the display device are determined, and based on the image in the display standby state, the gaze area is driven at a first resolution to display an image, and the non-gaze area is driven at a second resolution to display an image. Here, the first resolution is higher than the second resolution.

[0025] In some embodiments, the step of determining the user's gaze area and non-gaze area in the display device includes: Obtaining the user's eye gaze area on the display device through a gaze tracking system; Determining other areas other than the gaze area in the display device as non-gaze areas.

[0026] In some embodiments, the step of driving the gaze area at a first resolution to display an image and driving the non-gaze area at a second resolution to display an image based on the image in the display standby state includes: Determining the coordinates of the user's eyes through a gaze tracking system, and determining the left-eye view and the right-eye view based on the coordinates of the user's eyes; Rendering a plurality of first-resolution images corresponding to the first resolution and a plurality of second-resolution images corresponding to the second resolution based on the left-eye view and the right-eye view; Determining the sub-pixels corresponding to the left-eye view and the sub-pixels corresponding to the right-eye view within each pixel island group; In the fixation area, based on the first-resolution image, providing a driving signal corresponding to the left-eye view to the sub-pixels corresponding to the left-eye view and providing a driving signal corresponding to the right-eye view to the sub-pixels corresponding to the right-eye view; In the non-fixation area, based on the second-resolution image, including steps of providing a driving signal corresponding to the left-eye view to the sub-pixels corresponding to the left-eye view and providing a driving signal corresponding to the right-eye view to the sub-pixels corresponding to the right-eye view; Here, each pixel island group includes K columns of pixel islands covered by one optical division repeating unit, and the direction of the line connecting the user's left eye and right eye is parallel to the row direction.

[0027] In some embodiments, the eye-tracking system includes N / 2 first cameras and N / 2 second cameras, where N = K×n and K×n is an even number. The steps of determining the coordinates of the user's eyes through the eye-tracking system and determining the left-eye view and the right-eye view based on the coordinates of the user's eyes are: Determining the coordinates of the center of both eyes of the user and the central viewpoint corresponding to the coordinates of the center of both eyes of the user; Starting from the central viewpoint, based on a predetermined viewpoint interval, setting N - 1 first viewpoints in the area corresponding to the user's left eye, and starting from the central viewpoint, based on a predetermined viewpoint interval, setting N second viewpoints in the area corresponding to the user's right eye; Setting the N / 2 first cameras to the N / 2-th first viewpoint to the (N - 1)-th first viewpoint respectively, setting the N / 2 second cameras to the ((N / 2)+1)-th second viewpoint to the N-th second viewpoint respectively, and acquiring the left-eye view with the N / 2 first cameras and acquiring the right-eye view with the N / 2 second cameras.

[0028] In some embodiments, the steps of determining the sub-pixels corresponding to the left-eye view and the sub-pixels corresponding to the right-eye view within each pixel island group are: Obtaining the emission angle spectrum of each of the sub-pixels and obtaining an angle spectrum boundary database; Determining the coordinates of the center of both eyes of the user based on the coordinates of the user's eyes; Determining the angle between the center of both eyes of the user and the center of each of the pixel island groups; Based on the angle between the center of both eyes of the user and the center of each pixel island group and the emission angle spectrum of each of the sub-pixels, determining a center sub-pixel corresponding to the center of both eyes of the user; When the coordinates of the center of both eyes of the user are in the right half of the center sub-pixel, the center sub-pixel and (N / 2 - 1) sub-pixels on its right correspond to the view of the left eye, and N / 2 sub-pixels on the left of the center sub-pixel correspond to the view of the right eye; When the coordinates of the center of both eyes of the user are in the right half of the center sub-pixel, N / 2 sub-pixels on the right of the center sub-pixel correspond to the view of the left eye, and the center sub-pixel and (N / 2 - 1) sub-pixels on its left correspond to the view of the right eye.

[0029] In some embodiments, the gaze tracking system includes (N + 1) / 2 first cameras and (N + 1) / 2 second cameras, where N = K×n, K×n is odd, determining the coordinates of the user's eyes through the gaze tracking system, and based on the coordinates of the user's eyes, the steps of determining the left-eye view and the right-eye view are: Determining the coordinates of the center of both eyes of the user and a center viewpoint corresponding to the coordinates of the center of both eyes of the user; Starting from the center viewpoint, based on a predetermined viewpoint interval, setting N first viewpoints in the region corresponding to the left eye of the user, and starting from the center viewpoint, based on a predetermined viewpoint interval, setting N second viewpoints in the region corresponding to the right eye of the user; Set (N + 1) / 2 first cameras from the (N + 1) / 2-th first viewpoint to the N-th first viewpoint respectively, set the (N + 1) / 2 second cameras from the (N + 1) / 2-th second viewpoint to the N-th second viewpoint respectively, and include the step of obtaining the left-eye view with the (N + 1) / 2 first cameras and obtaining the right-eye view with the (N + 1) / 2 second cameras.

[0030] In some embodiments, the step of determining the sub-pixels corresponding to the left-eye view and the sub-pixels corresponding to the right-eye view within each pixel island group is obtaining the emission angle spectrum of each sub-pixel and obtaining the angle spectrum boundary database, determining the coordinates of the center of both eyes of the user based on the coordinates of the user's eyes, determining the angle between the center of both eyes of the user and the center of each pixel island group, determining the central sub-pixel corresponding to the center of both eyes of the user based on the angle between the center of both eyes of the user and the center of each pixel island group and the emission angle spectrum of each sub-pixel, The (N - 1) / 2 sub-pixels on the right side of the central sub-pixel correspond to the right-eye view, the (N - 1) / 2 sub-pixels on the left side of the central sub-pixel correspond to the left-eye view, and when the coordinates of the center of both eyes of the user are in the right half of the central sub-pixel, the central sub-pixel corresponds to the left-eye view, and when the coordinates of the center of both eyes of the user are in the right half of the central sub-pixel, the central sub-pixel corresponds to the right-eye view.

Brief Description of Drawings

[0031] To more clearly explain the technical solutions in the embodiments of the present disclosure, the drawings necessary for the description of the embodiments are briefly introduced below. Obviously, the drawings in the following description are only some embodiments. Those skilled in the art can also obtain other drawings based on these drawings without creative efforts.

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Embodiments for Carrying Out the Invention

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention without creative efforts fall within the protection scope of the present invention.

[0033] Unless otherwise defined, technical terms or scientific terms used in the present invention shall have the ordinary meanings understood by those skilled in the technical field to which the present invention belongs. The "first", "second", and similar words used in the present invention do not indicate order, quantity, or importance, but are only used to distinguish different components. Words such as "including" or "containing" mean that the elements or things appearing before such words include the elements or things listed after such words and their equivalents without excluding other elements or things. Words such as "connected" or "coupled" are not limited to physical or mechanical connections and may include direct or indirect electrical connections.

[0034] Note that the size and shape of each graphic in the drawings do not reflect actual dimensions and are only for the purpose of explaining the present invention. Throughout the drawings, the same or similar reference numerals indicate the same or similar elements, or elements having the same or similar functions.

[0035] In addition, as shown in FIG. 1, in the 3D display products of the related art, since a single viewpoint covers the entire pupil, the human eye focuses on the display screen, but the 3D image generated by the brain is outside the display screen. That is, since the focal depth of a single eye does not match the convergence depth of both eyes, visual fatigue occurs, which may give the user discomfort such as dizziness.

[0036] To address the above problems existing in the related art, an embodiment of the present disclosure provides a display device including a following display panel 01 and a light splitting element 02, as shown in FIG. 2.

[0037] The display panel 01 includes a plurality of pixel islands S arranged in an array along the row direction x and the column direction y. Each pixel island S includes n sub-pixels 08 arranged at intervals along the row direction x. Here, n is an integer greater than 1.

[0038] The light splitting element 02 is located on the display side of the display panel 01. The light splitting element 02 includes a plurality of light splitting repeating units 03 extending along the column direction Y and continuously arranged along the row direction X. The light splitting repeating unit 03 includes M light splitting structures A extending along the column direction Y and continuously arranged along the row direction X. Each light splitting repeating unit correspondingly covers K columns of pixel islands S. M and K are not the same, and the projection width of the main lobe viewing angle formed by the light emitted from the K*n sub-pixels at the optimal viewing distance of the display device is not less than 2 / 3 of the inter-pupillary distance.

[0039] In the display device provided by the embodiment of the present invention, since the projection width of the main lobe viewing angle formed by the light emitted from the K*n sub-pixels at the optimal viewing distance of the display device is not less than 2 / 3 of the inter-pupillary distance, the parallax of the left and right eyes is in an appropriate state, and a plurality of different parallax images can enter the pupils. The focal depth of a single eye matches the convergence depth of both eyes, dizziness does not occur during viewing, and visual fatigue is avoided.

[0040] It should be noted that the viewing angle includes a main lobe viewing angle and a side lobe viewing angle. The main lobe viewing angle refers to the viewing angle formed in space after the light emitted by the sub-pixel is split by the light splitting structure directly above the sub-pixel. The side lobe viewing angle refers to the viewing angle formed in space after the light emitted from the sub-pixel passes through the light splitting structure near the light splitting structure directly above the sub-pixel. For example, when the light passes through the first light splitting structure adjacent to the light splitting structure directly above the sub-pixel, a primary side lobe viewing angle is formed, and when the light passes through the second light splitting structure adjacent to the light splitting structure directly above the sub-pixel, a secondary side lobe viewing angle is formed, and so on.

[0041] In addition, the display device provided by the embodiment of the present invention is applicable to three-dimensional (3D) display. The 3D display is, for example, a super multi-viewpoint light field display, and the switching between 3D display and 2D display can also be realized. The pixel island can be used as a sub-pixel for 2D display. Since the pixel island contains a plurality of sub-pixels, the same resolution as that of 2D display can be maintained even in 3D display mode. By combining an eye-tracking system, a multi-view display with a wide viewing angle can be realized. Furthermore, a 3D display with a large number of pixels per inch (ppi) can be realized, more information can be obtained, and color crosstalk between adjacent viewpoints can be reduced.

[0042] Since the number of pixel islands is the resolution of 2D display, it should be noted that the size of the pixel island is for achieving 2D display with retinal-level resolution. That is, the angle of the pixel island with respect to the human eye is 1'. The corresponding display device has an optimal viewing distance that satisfies the above requirements. In order to ensure that there is no crosstalk between the left eye and the right eye in 3D display at the optimal viewing distance, it is necessary to design so that the number of the viewing point intervals between the left eye and the right eye at the optimal viewing distance is maximized. The sum of the viewing point widths in the case of no repeated viewing points and the inter-pupillary distance D at the optimal viewing distance satisfy the following conditions.

[0043]

Equation

[0044] Here, m is an integer greater than or equal to 0. W is the sum of the widths of the viewpoints without repeated viewpoints at the optimal observation distance, that is, the projected width of the main lobe angle at the optimal observation distance. As m increases, the viewpoint density gradually increases. To solve the visual fatigue caused by convergence competition, it is necessary to ensure a plurality of viewpoints entering the pupil. Therefore,

[0045]

Number

[0046] is, and therefore

[0047]

Number

[0048] can realize a plurality of viewpoints entering the pupil. However, as m increases, although the viewpoint density gradually increases, the movement range of the human eye gradually decreases. Therefore, in order to balance the viewpoint density and the movement range of the human eye, in some embodiments, m = 1 and W = 2D / 3, that is, the projected width of the main lobe viewing angle formed by the light emitted from the K*n sub-pixels at the optimal observation distance of the display device is equal to 2 / 3 of the inter-pupillary distance.

[0049] In a specific embodiment, the light splitting structure is used to control the emission angle of each sub-pixel and emits light with directivity.

[0050] In a specific embodiment, the display panel is one of a liquid crystal display panel (LCD), an organic light emitting diode (OLED) display panel, a quantum dot light emitting diode (QLED), a micro inorganic light emitting diode (micro LED) display panel, and a mini light emitting diode (mini LED) display panel.

[0051] In some embodiments, as shown in FIG. 2, every three pixel islands S continuously arranged in the column direction Y form a pixel repetition unit 04.

[0052] In one pixel repetition unit 04, the sub-pixels 08 of the same pixel island S have the same display color, and the sub-pixels 08 of different pixel islands S have different display colors.

[0053] In some embodiments, as shown in FIG. 2, one pixel repetition unit 04 includes a first pixel island 05, a second pixel island 06, and a third pixel island 07. The first pixel island 05 includes a plurality of red sub-pixels R, the second pixel island 06 includes a plurality of green sub-pixels G, and the third pixel island 07 includes a plurality of blue sub-pixels B.

[0054] In some embodiments, as shown in FIG. 2, the display colors of the respective sub-pixels 08 in one row of pixel islands S are the same.

[0055] In some embodiments, after the light emitted from the light-emitting regions of the respective sub-pixels within K pixel islands is split by M light splitting structures, a spatially continuous light-emitting region is formed.

[0056] In a specific embodiment, since the size of the light splitting structure in the row direction is small, the human eye cannot distinguish which splitting structure specifically emits light for the K×n sub-pixels corresponding to the M light splitting structures. To the human eye, the light emitted from the K×n sub-pixels appears to form a spatially continuous light-emitting region after being split by the M light splitting structures above it, but the human eye cannot see a "black zone" when moving within the visible space.

[0057] In some embodiments, the light-emitting regions of the respective sub-pixels within K pixel islands are spatially arranged in a staggered manner. As a result, the light emitted by the respective sub-pixels within the K pixel islands forms a spatially continuous light-emitting region after being split by the M light splitting structures, thereby removing moiré.

[0058] The space in "the light-emitting regions of the sub-pixels within the K pixel islands are arranged in a spatially staggered pattern" is the visible space of the display device.

[0059] In some embodiments, the sub-pixel includes a sub-pixel aperture region, and in the row direction, the widths of the respective sub-pixel aperture regions are the same.

[0060] Next, to better understand this solution, taking the main lobe viewing angle as an example, an example will be given and described in which the light-emitting regions of the sub-pixels within the K pixel islands are arranged in a spatially staggered pattern, and after the light emitted from the light-emitting regions of the sub-pixels within the K pixel islands is split by M light splitting structures, a spatially continuous light-emitting region is formed.

[0061] In a specific embodiment, among the M light splitting structures arranged in each row direction, among the plurality of sub-pixels corresponding to each light splitting structure, the difference in viewpoints between two adjacent sub-pixels is M.

[0062] In some embodiments, K = 1, M = 3, and n = 10. The optical path diagram of the K-column pixel islands is as shown in FIGS. 3 and 4. One pixel island corresponding to the three light splitting structures includes 10 sub-pixels, denoted as the first sub-pixel 1 to the tenth sub-pixel 10 respectively. The number of each sub-pixel represents the corresponding viewing point. Each sub-pixel within the pixel island is arranged as follows in the order of the corresponding viewing points: the first sub-pixel 1, the fourth sub-pixel 4, the seventh sub-pixel 7, the tenth sub-pixel 10, the third sub-pixel 3, the sixth sub-pixel 6, the ninth sub-pixel 9, the second sub-pixel 2, the fifth sub-pixel 5, and the eighth sub-pixel 8. The light splitting structures corresponding to the 10 sub-pixels are denoted as the first light splitting structure A1 to the third light splitting structure A3. Here, as shown in FIG. 3, the first light splitting structure A1 covers the first sub-pixel 1, the fourth sub-pixel 4, the seventh sub-pixel 7, and the tenth sub-pixel 10. The second light splitting structure A2 covers the third sub-pixel 3, the sixth sub-pixel 6, and the ninth sub-pixel 9. The third light splitting structure A3 covers the second sub-pixel 2, the fifth sub-pixel 5, and the eighth sub-pixel 8. As shown in FIG. 3, the relative positional relationship between each sub-pixel and the light splitting structure within one pixel island does not form a repeating unit. Connecting each sub-pixel in the order of the viewing points, the relative position between each sub-pixel and the light splitting structure remains unchanged. As shown in FIG. 4, after the sub-pixels corresponding to each light splitting structure are joined, the positions of the sub-pixels become complementary. That is, the gap between each sub-pixel is 0, and the relative positional relationship with the light splitting structure becomes a staggered complementary arrangement. Also, the light emitting regions of each sub-pixel within one pixel island are spatially arranged in a staggered manner, and the light emitting regions of each sub-pixel within one pixel island form a spatially staggered complementary arrangement, as shown in FIG. 3. Since there is a gap between the sub-pixels, the light emitted from adjacent sub-pixels corresponding to the same light splitting structure will have spatially discontinuous emission angles after passing through the same light splitting structure A. The relative positions of each sub-pixel within one pixel island and the three light splitting structures A are arranged in a staggered manner, and the light emitting regions of each sub-pixel within one pixel island are spatially arranged in a staggered pattern. Therefore, the emission angles of each light splitting structure A also form a staggered complementary arrangement.Since the size of the optical splitting structure A is extremely small, the human eye cannot distinguish which optical splitting structure emitted the light. Therefore, as shown in FIG. 4, to the human eye, the light emitted from the 10 sub-pixels within one pixel island appears to form a spatially continuous light-emitting region after being split by the three optical splitting structures. However, the human eye cannot see a "black zone" when moving within the visible space.

[0063] The continuity of the side lobe viewing angle is the same as that of the aforementioned main lobe viewing angle. The two discontinuous primary side lobe viewing angles of K pixel islands passing through adjacent optical splitting structures become a continuous primary side lobe viewing angle by complementing each other. Also, the width of the M optical splitting structures in the horizontal direction is the same as the width of the K columns of the pixel islands. The main lobe viewing angle boundary is parallel to the side lobe viewing angle boundary. Since the human eye cannot distinguish the distance between the main lobe viewing angle boundary and the side lobe viewing angle boundary, the main lobe viewing angle and the side lobe viewing angle also appear to be continuous. Similarly, the primary side lobe viewing angle and the secondary side lobe viewing angle are continuous, and the secondary side lobe viewing angle and the tertiary side lobe viewing angle are continuous. In this way, a continuous viewing angle is obtained.

[0064] In some embodiments, K×n and M are relatively prime to each other.

[0065] In some embodiments, in the horizontal direction, the width of the M optical splitting structures is the same as the width of the K columns of the pixel islands.

[0066] In some embodiments, the sub-pixel includes a sub-pixel opening region. In the row direction, the ratio of the total width of the n sub-pixel opening regions to the width of the pixel island is 0.9 / M or more and 1 or less.

[0067] In some embodiments, in the row direction, the ratio of the width of the sub-pixel opening region to the width of the pixel island is i / M, where i is an integer greater than 1 and less than or equal to M - 1.

[0068] In some embodiments, when i = 1, in the row direction, the light-emitting regions of the sub-pixels in the K pixel islands are spatially complementarily joined.

[0069] In some embodiments, when i = 1, as shown in FIG. 3, in the row direction X, the ratio of the total width of the n sub-pixel 08 opening regions to the width of the pixel island 1 is 1 / M. That is, the aperture ratio of the sub-pixels within the pixel island is 1 / M. With such an arrangement, the sub-pixels under each spectroscopic repetition unit can be offset and complementarily arranged with respect to the positions of the corresponding spectroscopic structures. As a result, the light-emitting regions of the sub-pixels in the K pixel islands are spatially complementarily joined. That is, the optical paths of each viewing point are closely connected, the moiré pattern is removed, and the display effect is improved.

[0070] Alternatively, in some embodiments, when i > 1, in the row direction, the light-emitting regions of the sub-pixels in the K pixel islands spatially overlap.

[0071] In some embodiments, in the row direction, the light-emitting regions of the sub-pixels in the K pixel islands spatially overlap uniformly.

[0072] Next, taking the viewing angle of the main lobe as an example, an example will be described in which the light emitted from the light-emitting regions of the sub-pixels in the K pixel islands is split by M light-splitting structures and then forms a spatially continuous light-emitting region.

[0073] In some embodiments, K = 1, M = 3, and n = 10. The optical path diagrams of the K-column pixel islands are as shown in FIGS. 5 and 6. One pixel island corresponding to the three optical splitting structures includes 10 sub-pixels, denoted as the first sub-pixel 1 to the tenth sub-pixel 10, respectively. The number of each sub-pixel represents the corresponding viewing point. As shown in FIG. 5, the relative positional relationship between each sub-pixel and the optical splitting structure within one pixel island does not form a repeating unit. When each sub-pixel is joined in the order of viewing points, the relative position of each sub-pixel and the optical splitting structure does not change. As shown in FIG. 6, after the sub-pixels corresponding to each optical splitting structure are joined, the positions of the sub-pixels overlap, and the relative positional relationship with the optical splitting structure becomes a staggered overlapping arrangement. Accordingly, the light-emitting regions of each sub-pixel within one pixel island are spatially arranged in a staggered manner, and also, the light-emitting regions of each sub-pixel within one pixel island form a spatially staggered complementary arrangement. As shown in FIG. 5, since there is a gap in the sub-pixel, the light emitted from adjacent sub-pixels corresponding to the same optical splitting structure will have a spatially discontinuous emission angle after passing through the same optical splitting structure A. However, since the relative positions of each sub-pixel within one pixel island and the three optical splitting structures A have a relationship of a uniformly staggered overlapping arrangement, the light-emitting regions of each sub-pixel within one pixel island are spatially uniformly overlapped and arranged. As a result, the emission angles of each optical splitting structure A also overlap in a staggered and uniform manner. Since the size of the optical splitting structure A is very small, the human eye cannot distinguish which spectroscopic structure A emitted the light. Therefore, as shown in FIG. 6, to the human eye, the light emitted from the 10 sub-pixels within one pixel island, after being split by the three optical splitting structures, appears to form a spatially continuous light-emitting region, but the human eye cannot see a "black zone" when moving within the visible space.

[0074] In some embodiments, as shown in FIG. 5, in the row direction, the ratio of the total width n×h1 of the n sub-pixel aperture regions to the width h2 of the pixel island is i / M, where i is an integer greater than 1 and less than or equal to M−1. That is, the aperture ratio of the sub-pixels within the pixel island is i / M. With such an arrangement, each sub-pixel below each optical division repeating unit can be arranged in a staggered and uniformly overlapping manner at positions corresponding to the corresponding optical division structure. As a result, the light-emitting regions of the sub-pixels within the K pixel islands spatially overlap uniformly, that is, the optical paths of each viewing point overlap evenly, so moiré is eliminated and the display effect is improved.

[0075] In a specific embodiment, when i>1 and the light-emitting regions of the sub-pixels within the K pixel islands spatially overlap uniformly, the ratio of the area of the overlapping region between two adjacent sub-pixel light-emitting regions to the area of the light-emitting region of one of them is (i−1) / i. The ratio of the area of the overlapping region between two adjacent sub-pixel light-emitting regions to the area of one of the sub-pixels is (i−1) / M.

[0076] Note that in FIG. 5, the ratio of the width of the aperture region of sub-pixel 08 in the row direction X to the width of pixel island S is set to 2 / 3. That is, in the row direction, the ratio of the total width of the n sub-pixel aperture regions to the width of the pixel island is (M−1) / M. That is, the aperture ratio of the sub-pixels within the pixel island in FIG. 5 is 2 / 3. When the aperture ratio of the sub-pixels within the pixel island is (M−1) / M and the condition that the light-emitting regions of the sub-pixels within the K pixel islands in the row direction spatially overlap uniformly is satisfied, the aperture ratio of the sub-pixels is maximally improved.

[0077] In a specific embodiment, when the light-emitting regions of the sub-pixels within the K pixel islands overlap uniformly in space, the ratio of the area of the overlapping region between two adjacent sub-pixel light-emitting regions to the area of the light-emitting region of one of them is (i−1) / i. The ratio of the area of the overlapping region between two adjacent sub-pixel light-emitting regions to the area of one of the sub-pixels is (i−1) / M.

[0078] When the ratio of the total width of the n sub-pixel aperture regions in the row direction to the width of the pixel island is 1 / M, that is, when i = 1, the light-emitting regions of the respective sub-pixels do not overlap in space. When i = 2, the ratio of the area of the overlapping region of the light-emitting regions of two adjacent sub-pixels to the area of the light-emitting region of one of the sub-pixels is 1 / 2, and the ratio of the area of the overlapping region of the light-emitting regions of two adjacent sub-pixels to the area of one of the sub-pixels is 1 / M. When i = 3, the ratio of the area of the overlapping region of the light-emitting regions of two adjacent sub-pixels to the area of the light-emitting region of one of the sub-pixels is 2 / 3, and the ratio of the area of the overlapping region of the light-emitting regions of two adjacent sub-pixels to the area of one of the sub-pixels is 2 / M. When i = 4, the ratio of the area of the overlapping region of the light-emitting regions of two adjacent sub-pixels to the area of the light-emitting region of one of the sub-pixels is 3 / 4, and the ratio of the area of the overlapping region of the light-emitting regions of two adjacent sub-pixels to the area of one of the sub-pixels is 3 / M. When i = M - 1, the ratio of the area of the overlapping region of the light-emitting regions of two adjacent sub-pixels to the area of the light-emitting region of one of the sub-pixels is (M - 2) / (M - 1), and the ratio of the area of the overlapping region of the light-emitting regions of two adjacent sub-pixels to the area of one of the sub-pixels is (M - 2) / M. Since it can be analogized in this way, no further details will be described.

[0079] In some embodiments, as shown in FIG. 7, the display device further includes a spacer dielectric layer 09 located between the light splitting element 02 and the display panel 01.

[0080] In some embodiments, the light splitting structure is a cylindrical lens.

[0081] In some embodiments, as shown in FIG. 7, the cylindrical lens 010 includes a first resin layer 011 having protrusions and a planarization resin layer 012 disposed on the side of the first resin layer 011 away from the display panel 01, and the refractive index of the planarization resin layer 012 is smaller than the refractive index of the first resin layer 011.

[0082] Alternatively, in some embodiments, the cylindrical lens is a liquid crystal lens.

[0083] Of course, in certain embodiments, the light splitting structure may be a geometric lens, a diffractive lens, a liquid lens, and other structural devices capable of controlling the light emission direction from the sub-pixels.

[0084] In some embodiments, the placement height of the light splitting structure, i.e., the thickness H of the spacer dielectric layer, satisfies the following conditions.

[0085]

Number

[0086] Here, L1 is the optimal viewing distance of the display device, and n3 is the refractive index of the spacer dielectric layer.

[0087] In some embodiments, the cylindrical lens includes a first resin layer having protrusions and a planarization resin layer disposed on the side of the first resin layer away from the display panel. The refractive index of the planarization resin layer is smaller than the refractive index of the first resin layer.

[0088] Alternatively, in some embodiments, the cylindrical lens is a liquid crystal lens.

[0089] In some embodiments, the radius of curvature of the cylindrical lens is 1.01r or more and 1.22r or less.

[0090] Here,

[0091]

Number

[0092] Here, n1 is the refractive index of the first resin layer or the refractive index of the e-ray of the liquid crystal lens, n2 is the refractive index of the planarization resin layer or the refractive index of the o-ray of the liquid crystal lens, n3 is the refractive index of the spacer dielectric layer, L1 is the optimal viewing distance of the display device, and P1 is the width of the cylindrical lens in the row direction.

[0093] [Number]

[0094] is the ideal value of the radius of curvature of the cylindrical lens obtained according to the ideal lens focal plane design, that is, the value of the radius of curvature of the cylindrical lens when the pixel light-emitting surface is located on the lens focal plane. In a specific embodiment, the radius of curvature of the cylindrical lens can be adjusted according to the ideal value of the radius of curvature according to actual needs.

[0095] In a specific embodiment, as shown in FIG. 2, M is 3, K is 1, and n is 10.

[0096] As shown in FIG. 2, it should be noted that M and K may have a many-to-one relationship. The many-to-one relationship between M and K means that M is 3, K is 1, and n is 32. Of course, M and K can also have a one-to-many or many-to-many relationship. For example, M is 3, K is 2, n is 32, or M is 3, K is 4, and n is 32.

[0097] Next, taking the optical splitting structure as a cylindrical lens as an example, the parameter design of the optical splitting structure of the display device provided by the embodiments of the present invention will be introduced. Here, the optimal viewing distance L1 = 630 mm, the interpupillary distance D of the human eye = 65 mm, and W = 2D / 3 = 43.3 mm.

[0098] In a specific embodiment, for example, K = 1, M = 3, and n = 32. The display device includes 3840×2160 pixel islands, and h2 = 181.8 micrometers (μm). When the width of the M optical splitting structures in the row direction is the same as the width of the K columns of the pixel islands, the width P1 of the cylindrical lens in the row direction is P1 = K×h2 / M. If K = 1 and M = 3, then P1 = 60.6 μm. The material of the spacer dielectric layer is usually glass, and n3 = 1.5. Substituting L1 = 630 mm, W = 43.3 mm, n3 = 1.5, and P1 = 60.6 μm into

[0099]

Number

[0100] gives H = 1322 μm. When n1 = 1.55, n2 = 1.42, n3 = 1.5, and H = 1322 μm,

[0101]

Number

[0102] it is.

[0103] Next, the simulation results of the curvature radius of the cylindrical lens will be introduced. The parameters calculated above: P1 = 60.6 μm, H = 1322 μm, r = 114.5 μm, and the sub-pixel related parameters: the width of the sub-pixel in the row direction is 5.68125 μm, and the width of the sub-pixel aperture in the row direction is 3.788 μm. Based on these parameters, a model is created, the curvature radius is scanned, and the variation relationship between the crosstalk between adjacent viewpoints and the curvature radius shown in FIG. 8 is obtained. The crosstalk between adjacent viewpoints is relatively small, and there is no obvious change due to the variation of the curvature radius. To obtain a crosstalk of zero and a wide viewing field range with the left and right eyes, a curvature radius R = 116 μm is preferred at the normal viewing angle. At a large viewing angle, a curvature radius R = 140 μm is preferred. Furthermore, according to the comparison of the crosstalk data with and without diffraction, it can be seen that the influence of diffraction on crosstalk is small, and the problem that diffraction affects crosstalk is avoided due to the small size of the cylindrical lens.

[0104] In a specific embodiment, when the cylindrical lens is a zoomable liquid crystal lens, the cylindrical lens can have different curvature radii at different viewing angles, and relatively small adjacent viewpoint crosstalk can be obtained without significant changes associated with the variation of the curvature radius. Also, the viewing field range where the crosstalk between the left eye and the right eye becomes zero may be widened.

[0105] Based on the above simulation model, P1 = 60.6 μm, H = 1322 μm, R = 116 μm, sub-pixel related parameters: the width of the sub-pixel in the row direction is 5.68125 μm, and the width of the sub-pixel aperture in the row direction is 3.788 μm. The sub-pixel aperture is scanned, and the sub-pixel emission angle spectrum at different aperture positions is obtained. The positions of different sub-pixels are as shown in FIG. 9. It should be noted that the sub-pixel aperture ratio corresponding to the above simulation model is 2 / 3. According to the calculation of the angle spectrum, the variation of the moiré contrast due to the sub-pixel aperture deviation is obtained as shown in FIG. 10. It can be seen that by increasing the sub-pixel aperture ratio in the embodiments of the present invention, the sensitivity to the influence of pixel aperture variation on the moiré pattern can be effectively reduced.

[0106] In a specific embodiment, K = 2, M = 3, and n = 32. For example, the display device includes 3840×2160 pixel islands, and h2 = 181.8 micrometers (μm). When the width of the M optical splitting structures in the row direction is the same as the width of the K columns of the pixel islands, the width P1 of the cylindrical lens in the row direction is P1 = K×h2 / M. If K = 1 and M = 3, then P1 = 121.2 μm. The material of the spacer dielectric layer is usually glass, and n3 = 1.5. Substituting L1 = 630 mm, W = 43.3 mm, n3 = 1.5, and P1 = 121.2 μm into

[0107]

Number

[0108]

Number

[0109] .

[0110] Next, the simulation results of the curvature radius of the cylindrical lens are introduced. The parameters calculated above are: P1 = 121.2 μm, H = 2643 μm, r = 229 μm, and the width of the sub-pixel in the row direction of the sub-pixel-related parameters is 5.68125 μm, and the width of the sub-pixel aperture in the row direction is 3.788 μm. Based on these parameters, a model is created, the curvature radius is scanned, and the variation relationship between the crosstalk between adjacent viewpoints and the curvature radius shown in FIG. 11 is obtained. The crosstalk between adjacent viewpoints is relatively small, and there is no obvious change due to the variation of the curvature radius. To obtain a wide viewing angle with zero crosstalk between the left and right eyes, the preferred curvature radius at the normal viewing angle is R = 232 μm, and at a large viewing angle, the preferred curvature radius is R = 280 μm. Furthermore, according to the comparison of the crosstalk data with and without diffraction, since the embodiment of the present invention employs two pixel islands corresponding to three cylindrical lenses, it can be seen that the width of the cylindrical lens increases and the influence of diffraction on crosstalk becomes greater. While the feasibility of the manufacturing process of the cylindrical lens is enhanced, the problem that diffraction affects crosstalk due to the small size of the cylindrical lens is also effectively avoided.

[0111] In a specific embodiment, when the cylindrical lens is a zoomable liquid crystal lens, the cylindrical lens can have different curvature radii at different viewing angles, and relatively small adjacent viewpoint crosstalk can be obtained without significant changes accompanying the variation of the curvature radius. Also, there is a possibility that the viewing angle range where the crosstalk between the left eye and the right eye becomes zero becomes wider.

[0112] Based on the above simulation model, P1 = 121.2 μm, H = 2643 μm, R = 232 μm, sub-pixel related parameters: the width of the sub-pixel in the row direction is 5.68125 μm, the width of the sub-pixel opening in the row direction is 3.788 μm, scan the sub-pixel opening, obtain the sub-pixel emission angle spectra at different opening positions, and the positions of different sub-pixels are as shown in Figure 12. It should be noted that the sub-pixel aperture ratio corresponding to the above simulation model is 2 / 3. According to the calculation of the angle spectrum, the variation of the moiré contrast due to the sub-pixel aperture deviation is obtained as shown in Figure 13. It can be seen that by increasing the sub-pixel aperture ratio in the embodiments of the present invention, the sensitivity to the influence of pixel aperture variation on the moiré pattern can be effectively reduced.

[0113] In a specific embodiment, K = 4, M = 3, n = 32. For example, the display device includes 3840×2160 pixel islands, and h2 = 181.8 micrometers (μm). When the width of the M optical splitting structures in the row direction is the same as the width of the K columns of the pixel islands, the width P1 of the cylindrical lens in the row direction is P1 = K×h2 / M. If K = 4 and M = 3, then P1 = 242.4 μm. The material of the spacer dielectric layer is usually glass, and n3 = 1.5. Substitute L1 = 630 mm, W = 43.3 mm, n3 = 1.5, P1 = 242.4 μm into

[0114]

Number

[0115] to obtain H = 5286 μm. n1 = 1.55, n2 = 1.42, n3 = 1.5, H = 5286 μm,

[0116]

Number

[0117] .

[0118] Next, the simulation results of the curvature radius of the cylindrical lens are introduced. The parameters calculated above are: P1 = 121.2 μm, H = 5286 μm, r = 458 μm, and the width of the sub-pixel in the row direction of the sub-pixel related parameters is 5.68125 μm, and the width of the sub-pixel aperture in the row direction is 3.788 μm. Based on these parameters, a model is created, the curvature radius is scanned, and the variation relationship between the crosstalk between adjacent viewpoints and the curvature radius shown in FIG. 14 is obtained. The crosstalk between adjacent viewpoints is relatively small, and there is no obvious change due to the variation of the curvature radius. To obtain a wide viewing range with zero crosstalk in the left and right eyes, the preferred curvature radius at the normal viewing angle is R = 464 μm, and at a large viewing angle, the preferred curvature radius is R = 560 μm. Furthermore, according to the comparison of the crosstalk data with and without diffraction, since the embodiment of the present invention employs two pixel islands corresponding to three cylindrical lenses, it can be seen that the width of the cylindrical lens increases and the influence of diffraction on crosstalk becomes greater. While the feasibility of the manufacturing process of the cylindrical lens is enhanced, the problem that diffraction affects crosstalk due to the small size of the cylindrical lens is also effectively avoided.

[0119] In a specific embodiment, when the cylindrical lens is a zoomable liquid crystal lens, the cylindrical lens can have different curvature radii at different viewing angles, and relatively small adjacent viewpoint crosstalk can be obtained without significant changes accompanying the variation of the curvature radius. Also, there is a possibility that the viewing range where the crosstalk between the left eye and the right eye becomes zero becomes wider.

[0120] Based on the above simulation model, P1 = 121.2 μm, H = 5286 μm, R = 464 μm, sub-pixel related parameters: the width of the sub-pixel in the row direction is 5.68125 μm, the width of the sub-pixel aperture in the row direction is 3.788 μm, the sub-pixel aperture is scanned, and the sub-pixel emission angle spectra at different aperture positions are obtained. The positions of different sub-pixels are as shown in FIG. 15. It should be noted that the sub-pixel aperture ratio corresponding to the above simulation model is 2 / 3. According to the calculation of the angle spectrum, the variation of the moire contrast due to the sub-pixel aperture deviation is obtained as shown in FIG. 13. It can be seen that by increasing the sub-pixel aperture ratio in the embodiments of the present invention, the sensitivity to the influence of the pixel aperture variation on the moire pattern can be effectively reduced.

[0121] In some embodiments, in the row direction, the absolute value of the difference in the widths of different sub-pixel aperture regions is 2.5 μm or less. Thereby, the moire pattern caused by a large deviation of the sub-pixel apertures at different positions can be avoided, and the display effect can be improved.

[0122] In some embodiments, the display device further includes an eye-tracking system used to determine the position of the user's eyes in real time.

[0123] The above display device provided by the embodiments of the present invention is a mobile phone, a tablet computer, a television, a monitor, a notebook computer, a digital photo frame, a navigator, or other products or components having a display function. Other essential components of the display device are understood by ordinary technicians and will not be described in detail here and should not be used to limit the present invention.

[0124] Based on the same inventive concept, the embodiments of the present invention also provide a driving method for the above display device, which includes the following steps as shown in FIG. 17.

[0125] S101. In the two-dimensional display mode, based on the image for display standby, a first image driving signal corresponding to each pixel island is determined, and in order to form a two-dimensional image, the corresponding first image driving signal is loaded to all the sub-pixels within the pixel island.

[0126] S102. In the three-dimensional display mode, a user's fixation area and non-fixation area on the display device are determined. Based on the image for display standby, the fixation area is driven at a first resolution to display an image, and the non-fixation area is driven at a second resolution to display an image; here, the first resolution is higher than the second resolution.

[0127] Note that the display device is further provided with a Graphics Processing Unit (GPU), and this can be used to accelerate rendering, that is, the GPU can be called to accelerate the rendering of graphics and improve the image loading speed. However, due to the insufficient rendering ability of the GPU, the rendering ability of the GPU cannot meet the requirements of the full view of all sub-pixel views of the display device with pixel islands including a plurality of sub-pixels.

[0128] According to the driving method of the display device provided by the embodiments of the present invention, the resolution of the display panel is controlled by division according to the display image. The human eye's fixation area corresponds to the high-resolution display area, and the non-fixation area corresponds to the low-resolution display area. That is, the display area of the display device is divided into a high-resolution area and a low-resolution area. The resolution of the high-resolution area is higher than that of the low-resolution area. Under the condition of ensuring the display effect of the human eye's fixation area, the resolution of the non-fixation area is reduced, and the sub-pixel view is arranged within the range of the rendering ability of the GPU.

[0129] In some embodiments, determining the user's fixation area and non-fixation area on the display device specifically includes obtaining the user's eye fixation area on the display device through a gaze tracking system, Determine other areas other than the fixation area in the display device as non-fixation areas.

[0130] In a specific embodiment, as shown in FIG. 18, the display area of the display device is divided into Q1×Q2 zones, and the fixation area occupies q1×q2.

[0131] Note that in FIG. 18, Q1 = 16 and Q2 = 9 are given as examples. In a specific embodiment, the display device further includes a plurality of scanning lines extending in the row direction, a plurality of data lines extending along the column direction, a plurality of first driving circuits, and a plurality of second driving circuits. The scanning lines are electrically connected in a one-to-one correspondence with the pixel island rows, the scanning lines are electrically connected to the first driving circuit, and a scanning signal is provided to the scanning lines by the first driving circuit. The data lines are electrically connected in a one-to-one correspondence with the sub-pixel columns, the data lines are electrically connected to the second driving circuit, and a data signal is provided to the data lines using the second driving circuit. In a specific implementation, Q2 is the number of the first driving circuits, and Q1 is the number of the second driving circuits. In a specific embodiment, the fixation area resolution is not compressed, and the non-fixation area is

[0132]

Number

[0133] compressed in the horizontal direction and

[0134]

Number

[0135] compressed in the vertical direction. The resolution distribution of the compressed image is shown in FIG. 19. In some embodiments, for example, a low-resolution view of the entire field of view and a high-resolution view of the fixation area are rendered, and the fixation area is rendered twice at low and high resolutions. Assuming that the data volume of each frame of the full high-resolution view is 100%, according to the rendering method of the low-resolution view of the entire field of view and the high-resolution view of the fixation area, the data volume of each frame of the image is

[0136]

Number

[0137]

Number

[0138]

Number

[0139] is selected, the attention area can be set to a 5×5 zone, that is, q1 = q2 = 5. Or, the attention area can also be set to a 4×6 zone, that is, q1 = 4, q2 = 6. The area of the attention area occupies approximately 17% of the entire display area.

[0140]

Table 1

[0141] Note that the non - attention area is compressed by 1 / 4 in both the horizontal and vertical directions, that is, 4×4 pixel islands are compressed into 1 pixel island data. In a specific embodiment, for example, the data of one pixel island within a 4×4 pixel island is copied to three adjacent pixel islands and four rows of pixel islands, and is turned on simultaneously. As a result, the 4×4 pixel islands in the non - attention area are written with the same pixel island data.

[0142] Please note that a low - resolution view of the non - attention area and a high - resolution view of the attention area can also be rendered.

[0143] In some embodiments, in step S102, based on the image for display standby, driving the fixation area at a first resolution to display an image and driving the non-fixation area at a second resolution to display an image specifically includes: Determining the coordinates of the user's eyes through an eye tracking system, and determining the left-eye view and the right-eye view based on the coordinates of the user's eyes. Rendering a plurality of first-resolution images corresponding to the first resolution and a plurality of second-resolution images corresponding to the second resolution based on the left-eye view and the right-eye view. Determining the sub-pixels corresponding to the left-eye view and the sub-pixels corresponding to the right-eye view within each pixel island group, where each pixel island group includes K pixel islands covered by one optical division repeating unit, and the direction of the line connecting the user's left eye and right eye is parallel to the row direction. In the non-fixation area, based on the second-resolution image, providing a driving signal corresponding to the left-eye view to the sub-pixels corresponding to the left-eye view and providing a driving signal corresponding to the right-eye view to the sub-pixels corresponding to the right-eye view; in the fixation area, based on the first-resolution image, providing a driving signal corresponding to the left-eye view to the sub-pixels corresponding to the left-eye view and providing a driving signal corresponding to the right-eye view to the sub-pixels corresponding to the right-eye view.

[0144] In some embodiments, the first-resolution image is only an image corresponding to the fixation region, and the second-resolution image is the entire image of the fixation region and the non-fixation region. First, based on the second-resolution image, a driving signal corresponding to the left-eye view is provided to the sub-pixels corresponding to the left-eye view in the fixation region and the non-fixation region, and a driving signal corresponding to the right-eye view is provided to the sub-pixels corresponding to the right-eye view. Then, based on the first-resolution image, a driving signal corresponding to the left-eye view is provided to the sub-pixels corresponding to the left-eye view in the fixation region, and a driving signal corresponding to the right-eye view is provided to the sub-pixels corresponding to the right-eye view. As a result, finally, in the non-fixation region, based on the second-resolution image, a driving signal corresponding to the left-eye view is provided to the sub-pixels corresponding to the left-eye view, and a driving signal corresponding to the right-eye view is provided to the sub-pixels corresponding to the right-eye view. Also, in the fixation region, based on the first-resolution image, a driving signal corresponding to the left-eye view is provided to the sub-pixels corresponding to the left-eye view, and a driving signal corresponding to the right-eye view is provided to the sub-pixels corresponding to the right-eye view. Or, in some embodiments, the first-resolution image is only an image corresponding to the fixation region, and the second-resolution image is an image of the non-fixation region. First, based on the second-resolution image, a driving signal corresponding to the left-eye view is provided to the sub-pixels corresponding to the left-eye view in the non-fixation region, and a driving signal corresponding to the right-eye view is provided to the sub-pixels corresponding to the right-eye view. Then, based on the first-resolution image, a driving signal corresponding to the left-eye view is provided to the sub-pixels corresponding to the left-eye view in the fixation region, and a driving signal corresponding to the right-eye view is provided to the sub-pixels corresponding to the right-eye view. As a result, finally, in the non-fixation region, based on the second-resolution image, a driving signal corresponding to the left-eye view is provided to the sub-pixels corresponding to the left-eye view, and a driving signal corresponding to the right-eye view is provided to the sub-pixels corresponding to the right-eye view. Also, in the fixation region, based on the first-resolution image, a driving signal corresponding to the left-eye view is provided to the sub-pixels corresponding to the left-eye view, and a driving signal corresponding to the right-eye view is provided to the sub-pixels corresponding to the right-eye view.

[0145] It should be noted that each pixel island group includes K pixel islands covered by one light splitting repetition unit. That is, the total number of sub-pixels included in each pixel island group is N = K × n.

[0146] In some embodiments, N = K × n is an even number, and the gaze tracking system includes N / 2 first cameras and N / 2 second cameras. Determining the coordinates of the user's eyes through the gaze tracking system and determining the left-eye view and the right-eye view based on the coordinates of the user's eyes specifically includes determining the coordinates of the center of both eyes of the user and the central viewpoint corresponding to the coordinates of the center of both eyes of the user, starting from the central viewpoint, based on a predetermined viewpoint interval, setting N - 1 first viewpoints in the area corresponding to the user's left eye, and starting from the central viewpoint, based on a predetermined viewpoint interval, setting N second viewpoints in the area corresponding to the user's right eye, respectively setting the N / 2 first cameras from the N / 2-th first viewpoint to the (N - 1)-th first viewpoint, respectively setting the N / 2 second cameras from the ((N / 2)+1)-th second viewpoint to the N-th second viewpoint, acquiring the left-eye view with the N / 2 first cameras, and acquiring the right-eye view with the N / 2 second cameras.

[0147] Note that the predetermined viewpoint interval is set according to the projection width of N viewpoints at the optimal viewing distance. For example, when W = 2D / 3, that is, when the projection width of the main lobe viewing angle formed by the light emitted from N sub-pixels at the optimal viewing distance of the display device is equal to 2 / 3 of the interpupillary distance, the projection width of N viewpoints at a distance of 630 mm is 43.3 mm. When N = 32, the predetermined viewpoint interval is 0.12°. When N = 64, the predetermined viewpoint interval is 0.06°. When N = 128, the predetermined viewpoint interval is 0.03°. When the projection width of the main lobe viewing angle formed by the light emitted from N sub-pixels at the optimal viewing distance of the display device is equal to 2 / 3 of the interpupillary distance, the difference between the viewpoints of the left eye and the right eye is 3N / 2.

[0148] In the driving method of the display device provided by the embodiment of the present invention, the predetermined viewing point interval is set according to the projection widths of N viewing points at the optimal viewing distance. Further, the sum of the central viewing point, the first viewing point, and the second viewing point is 2N, and the difference between the (N - 1)-th first viewing point and the ((N / 2)+1)-th second viewing point is 3N / 2 viewing points. By setting the viewing points according to the above-mentioned predetermined viewing point interval, not only can the viewing point density of one eye be ensured, but also the accurate parallax of both eyes can be ensured by the camera arrangement mode provided by the embodiment of the present invention. Under the condition of eliminating visual fatigue, the sub-pixel views are arranged within the rendering capabilities of the GPU.

[0149] In some embodiments, in step S1023, determining the sub-pixels corresponding to the left-eye view and the sub-pixels corresponding to the right-eye view within each pixel island group specifically includes: acquiring the emission angle spectrum of each sub-pixel and acquiring the angle spectrum boundary database, determining the coordinates of the centers of both eyes of the user based on the coordinates of the user's eyes, determining the angle between the center of both eyes of the user and the center of each pixel island group, determining a central sub-pixel corresponding to the center of both eyes of the user based on the angle between the center of both eyes of the user and the center of each pixel island group and the emission angle spectrum of each sub-pixel, When the coordinates of the center of both eyes of the user are in the right half of the central sub-pixel, the central sub-pixel and (N / 2 - 1) sub-pixels on its right correspond to the left-eye view, and N / 2 sub-pixels on the left of the central sub-pixel correspond to the right-eye view. When the coordinates of the center of both eyes of the user are in the right half of the central sub-pixel, N / 2 sub-pixels on the right of the central sub-pixel correspond to the left-eye view, and the central sub-pixel and (N / 2 - 1) sub-pixels on its left correspond to the right-eye view.

[0150] In a specific embodiment, for example, the emission angle spectrum of each sub-pixel is measured in advance by simulation, and the display device further includes a driving chip that stores the emission angle spectrum. The stored emission angle spectrum of each sub-pixel may be obtained through the driving chip. Alternatively, the display device may further include a module for measuring the emission angle spectrum of each sub-pixel, and the emission angle spectrum of the sub-pixel may be measured in real time through this module.

[0151] In a specific embodiment, when the widths of the M optical splitting structures in the row direction are the same as the pixel island widths of K columns, the emission angle spectra of the sub-pixels of each pixel island are the same. The angle spectrum boundary of each sub-pixel is determined according to the obtained emission angle spectrum of each sub-pixel, and the angle range occupied by each sub-pixel may be determined with the intersection point of the emission angle spectra of adjacent sub-pixels as the boundary point. In a specific implementation, the relationship between all boundary points and the numbers of the corresponding sub-pixels can be stored as a sub-pixel angle spectrum boundary database. For example, the angle spectrum boundary database can be stored in the driving chip. Based on the included angle in the row direction between the centers of the user's two eyes and the center of each pixel island group, and the emission angle spectrum of each sub-pixel, the central sub-pixel corresponding to the centers of the user's two eyes is determined. Specifically, by comparing the included angle between the connection line between the centers of the user's two eyes and the center of each pixel island group with the sub-pixel angle spectrum boundary database, it can be determined which sub-pixel angle spectrum range the centers of the user's two eyes are located in for each pixel island group, and the sub-pixel can be used as the central sub-pixel of the pixel island group.

[0152] Next, an example of compressing to make the non-fixation area resolution of W = 2D / 3

[0153]

Equation

[0154] is given to explain the driving method of the display device provided by the embodiments of the present invention.

[0155] In some embodiments, K = 1, M = 3, N = n = 32.

[0156] As shown in FIG. 20, 31 first viewpoints are set at a predetermined viewing point interval of 0.12° from the central viewing point in the region corresponding to the user's left eye, and 32 second viewpoints are set at a predetermined viewing point interval from the central viewing point in the region corresponding to the user's right eye. In FIG. 20, the reference numeral for the first viewing point is "-", and the reference numeral for the second viewing point is "+". That is, "-31" represents the 31st first viewing point, and "+32" represents the 32nd second viewing point. The 16 first cameras are respectively set at positions from -16 to -31, and the 16 second cameras are respectively set at positions from +17 to +32. The 16 first cameras are used to obtain a left-eye view corresponding to the left-eye view, and the 16 second cameras are used to obtain a right-eye view corresponding to the right-eye view. According to the second resolution of 960×540, 32 images of the entire field of view are rendered, and according to the density of the first resolution of 3840×2160, 32 images of the field of view of the fixation region are rendered.

[0157] As shown in FIG. 21, for each acquired sub-pixel emission angle spectrum, the angle spectrum boundary of each sub-pixel is determined based on the sub-pixel emission angle spectrum, and the angular range occupied by each sub-pixel is judged with the intersection point of adjacent sub-pixel angle spectra as the boundary point. Here, FIG. 21 shows only some of the sub-pixel angle spectrum boundaries. In a specific implementation, the relationship between all boundary points and the corresponding sub-pixel numbers is stored as a sub-pixel angle spectrum boundary database. For example, the angle spectrum boundary database may be stored in the driving chip. Based on the in-line included angle between the connection line of the centers of the user's two eyes and the center of each pixel island group, and the emission angle spectrum of each sub-pixel, the central sub-pixel corresponding to the centers of the user's two eyes is determined. Specifically, the included angle between the connection line of the centers of the user's two eyes and the center of each pixel island group is compared with the sub-pixel angle spectrum boundary database to judge in which sub-pixel angle spectrum range of each pixel island group the centers of the user's two eyes are located, and the sub-pixel can be used as the central sub-pixel of the pixel island group. For example, since the centers of the user's two eyes correspond to the 8th sub-pixel of the jth pixel island group, the 8th sub-pixel is used as the central sub-pixel of the jth pixel island group. When determining the central sub-pixel, as shown in FIG. 22, the sub-pixels are joined according to the order of viewpoints, each sub-pixel is arranged in ascending order of viewpoints, and the central sub-pixel and the sub-pixels corresponding to the left-eye view and the right-eye view are determined according to the sub-pixel positions in the arrangement order of viewpoints. As shown in FIG. 22, when the coordinates of the centers of the user's two eyes are located in the left half of the 8th sub-pixel of the jth pixel island group, the 8th sub-pixel included in the pixel island group and the 16 sub-pixels on the right side of the 8th sub-pixel correspond to the second viewpoints from +32nd to +17th in order, and the 16 sub-pixels on the left side of the 8th sub-pixel correspond to the first viewpoints from -31st to -16th in order. The second resolution image data of each viewpoint is loaded into a 3840×2160 pixel island group according to a resolution of 960×540, and the image of the fixation area is replaced at the corresponding position to obtain 32 images with a resolution of 3840×2160 for each viewpoint.Next, according to the correspondence between the sub-pixels in each pixel island group and the viewpoints, 32 images of 3840×2160 are alternately arranged to form one image of (3840×32)×2160, which is assigned to each sub-pixel to complete the 3D layout. After the above layout processing, the human eye can see the visual effect as shown in FIG. 23. After ensuring the correct parallax of the left and right eyes, a plurality of different parallax images entering the pupil can be further realized, and the problem of 3D visual fatigue can be solved.

[0158] In FIG. 22, the sub-pixels are joined according to the order of the viewpoints. In a specific embodiment, the order from the small viewpoint to the large viewpoint does not represent the actual positions of the sub-pixels in each pixel island group. As shown in FIG. 24, in the actual layout, it is necessary to perform a conversion between the actual corresponding viewpoint numbers and the actual physical arrangement numbers of the sub-pixels in the pixel island. For example, the difference in viewpoints between two adjacent sub-pixels corresponding to the optical splitting structure can be set as M.

[0159] In some embodiments, K = 2, M = 3, n = 32, N = 64.

[0160] As shown in FIG. 25, in the region corresponding to the user's left eye, 63 first viewpoints are set at a predetermined viewpoint interval of 0.06° from the central viewpoint. Starting from the central viewpoint and based on the predetermined viewpoint interval, in the region corresponding to the user's right eye, 64 second viewpoints are set at a predetermined viewpoint interval from the central viewpoint. 32 first cameras are respectively set at positions from -32 to -63, and 32 second cameras are respectively set at positions from +33 to +64. The 32 first cameras are used to obtain the left-eye view, and the 32 second cameras are used to obtain the right-eye view corresponding to the right-eye view. According to the second resolution of 480×540, 64 images of the entire field of view are rendered, and according to the density of the first resolution of 1920×2160, 64 images of the field of view of the fixation region are rendered.

[0161] For each obtained sub-pixel emission angle spectrum, the angular spectrum boundary of each sub-pixel is determined based on the sub-pixel emission angle spectrum, and the angular range occupied by each sub-pixel is judged with the intersection point of adjacent sub-pixel angular spectra as the boundary point. Based on the included angle in the row direction between the connection line of the centers of the user's two eyes and the center of each pixel island group and the emission angle spectrum of each sub-pixel, the central sub-pixels corresponding to the centers of the user's two eyes are determined. Specifically, the included angle between the connection line of the centers of the user's two eyes and the center of each pixel island group is compared with the sub-pixel angular spectrum boundary database to judge in which sub-pixel angular spectrum range of each pixel island group the centers of the user's two eyes are located, and the sub-pixel can be used as the central sub-pixel of the pixel island group. For example, since the centers of the user's two eyes correspond to the 8th sub-pixel of the jth pixel island group, the 8th sub-pixel is used as the central sub-pixel of the jth pixel island group. When determining the central sub-pixel, as shown in Fig. 26, the sub-pixels are joined according to the order of viewpoints, each sub-pixel is arranged from the smallest to the largest in terms of viewpoints, and the central sub-pixel and the sub-pixels corresponding to the left-eye view and the right-eye view are determined according to the sub-pixel positions in the arrangement order of viewpoints. As shown in Fig. 26, when the coordinates of the centers of the user's two eyes are located in the left half of the 8th sub-pixel of the jth pixel island group, the 8th sub-pixel included in the pixel island group and the 32 sub-pixels on the right side of the 8th sub-pixel correspond to the 2nd viewpoint from +64th to +33rd in order, and the 32 sub-pixels on the left side of the 8th sub-pixel correspond to the 1st viewpoint from -63rd to -32nd in order. The second resolution image data of each viewpoint is loaded into a 1920×2160 pixel island group according to a resolution of 480×540, and the image of the fixation area is replaced at the corresponding position to obtain 64 images with a resolution of 1920×2160 for each viewpoint. Next, according to the correspondence between the sub-pixels and viewpoints within each pixel island group, 64 images of 3840×2160 are arranged alternately to form 1 image of (1920×64)×2160, which is assigned to each sub-pixel to complete the 3D layout.After the above layout processing, the human eye can see a visual effect as shown in FIG. 23. After ensuring the correct parallax of the left and right eyes, a plurality of different parallax images entering the pupil can be further realized, and the problem of 3D visual fatigue can be solved.

[0162] In FIG. 26, the sub-pixels are joined according to the order of viewpoints. In a specific embodiment, the order from a smaller viewpoint to a larger viewpoint does not represent the actual positions of the sub-pixels in each pixel island group. As shown in FIG. 28, in the actual layout, it is necessary to perform a conversion between the actual corresponding viewpoint numbers and the actual physical arrangement numbers of the sub-pixels within the pixel island. For example, the difference in viewpoints between two adjacent sub-pixels corresponding to the optical splitting structure can be set as M.

[0163] In some embodiments, K = 4, M = 3, n = 32, N = 128.

[0164] As shown in FIG. 29, in the region corresponding to the user's left eye, 127 first viewpoints are set at a predetermined viewpoint interval of 0.03° from the central viewpoint. Starting from the central viewpoint and based on the predetermined viewpoint interval, in the region corresponding to the user's right eye, 128 second viewpoints are set at a predetermined viewpoint interval from the central viewpoint. 16 first cameras are respectively set at positions from -64 to -127, and 64 second cameras are respectively set at positions from +65 to +128. The 64 first cameras are used to obtain the left-eye view, and the 64 second cameras are used to obtain the right-eye view corresponding to the right-eye view. According to the second resolution of 240×540, 128 images of the entire field of view are rendered, and according to the density of the first resolution of 960×2160, 128 images of the field of view of the fixation region are rendered.

[0165] For each obtained sub-pixel emission angle spectrum, the angular spectrum boundary of each sub-pixel is determined based on the sub-pixel emission angle spectrum, and the angular range occupied by each sub-pixel is judged with the intersection point of adjacent sub-pixel angular spectra as the boundary point. Based on the included angle in the row direction of the connection line between the centers of the user's two eyes and the center of each pixel island group, and the emission angle spectrum of each sub-pixel, the central sub-pixel corresponding to the centers of the user's two eyes is determined. Specifically, the included angle between the connection line between the centers of the user's two eyes and the center of each pixel island group is compared with the sub-pixel angle spectrum boundary database to judge in which sub-pixel angle spectrum range of each pixel island group the centers of the user's two eyes are located, and the sub-pixel can be used as the central sub-pixel of the pixel island group. For example, since the centers of the user's two eyes correspond to the 8th sub-pixel of the j-th pixel island group, the 8th sub-pixel is used as the central sub-pixel of the j-th pixel island group. When determining the central sub-pixel, as shown in FIG. 30, the sub-pixels are joined according to the order of viewpoints, each sub-pixel is arranged from the smallest viewpoint to the largest viewpoint, and the central sub-pixel and the sub-pixels corresponding to the left-eye view and the right-eye view are determined according to the sub-pixel positions in the arrangement order of the viewpoints. As shown in FIG. 30, when the coordinates of the centers of the user's two eyes are located in the left half of the 8th sub-pixel of the j-th pixel island group, the 8th sub-pixel included in the pixel island group and the 64 sub-pixels on the right side of the 8th sub-pixel correspond to the second viewpoints from +128th to +65th in order, and the 64 sub-pixels on the left side of the 8th sub-pixel correspond to the first viewpoints from -127th to -64th in order. The second resolution image data of each viewpoint is loaded into a 960×2160 pixel island group according to a resolution of 240×540, and the image of the fixation area is replaced at the corresponding position to obtain 128 images with a resolution of 960×2160 for each viewpoint. Next, according to the correspondence relationship between the sub-pixels and the viewpoints in each pixel island group, 128 images of 960×2160 are arranged alternately to form 1 image of (960×128)×2160, which is assigned to each sub-pixel to complete the 3D layout.After the above layout processing, the human eye can see a visual effect as shown in FIG. 31 (the human eye can see a visual effect as shown in FIG. 23). After ensuring the correct parallax of the left and right eyes, a plurality of different parallax images entering the pupil can be further realized, and the problem of 3D visual fatigue can be solved.

[0166] In FIG. 30, the sub-pixels are joined according to the order of viewpoints. In a specific embodiment, the order from a smaller viewpoint to a larger viewpoint does not represent the actual positions of the sub-pixels in each pixel island group. As shown in FIG. 32, in the actual layout, it is necessary to perform a conversion between the actual corresponding viewpoint numbers and the actual physical arrangement numbers of the sub-pixels within the pixel island. For example, the difference in viewpoints between two adjacent sub-pixels corresponding to the optical splitting structure can be set as M.

[0167] Of course, in some embodiments, N = K×n may be odd, and the gaze tracking system includes (N + 1) / 2 first cameras and (N + 1) / 2 second cameras. Determining the coordinates of the user's eyes through the gaze tracking system and determining the left-eye view and the right-eye view based on the coordinates of the user's eyes specifically includes determining the coordinates of the center of both eyes of the user and the central viewpoint corresponding to the coordinates of the center of both eyes of the user, starting from the central viewpoint, based on a predetermined viewpoint interval, setting N first viewpoints in the region corresponding to the user's left eye, and starting from the central viewpoint, based on a predetermined viewpoint interval, setting N second viewpoints in the region corresponding to the user's right eye, setting the (N + 1) / 2 first cameras to the (N + 1) / 2th first viewpoint to the Nth first viewpoint respectively, setting the (N + 1) / 2 second cameras to the (N + 1) / 2th second viewpoint to the Nth second viewpoint respectively, acquiring the left-eye view with the (N + 1) / 2 first cameras, and acquiring the right-eye view with the (N + 1) / 2 second cameras.

[0168] In some embodiments, determining the sub-pixels corresponding to the left-eye view and the sub-pixels corresponding to the right-eye view within each pixel island group specifically includes: obtaining the emission angle spectrum of each sub-pixel and obtaining an angle spectrum boundary database; determining the coordinates of the center of both eyes of the user based on the coordinates of the user's eyes; determining the angle between the center of both eyes of the user and the center of each pixel island group; determining a central sub-pixel corresponding to the center of both eyes of the user based on the angle between the center of both eyes of the user and the center of each pixel island group and the emission angle spectrum of each sub-pixel; The (N - 1) / 2 sub-pixels on the right side of the central sub-pixel correspond to the right-eye view, the (N - 1) / 2 sub-pixels on the left side of the central sub-pixel correspond to the left-eye view. When the coordinates of the center of both eyes of the user are in the right half of the central sub-pixel, the central sub-pixel corresponds to the left-eye view; when the coordinates of the center of both eyes of the user are in the right half of the central sub-pixel, the central sub-pixel corresponds to the right-eye view.

[0169] In summary, in the display device and its driving method provided by the embodiments of the present invention, the projection width of the main lobe viewing angle formed by the light emitted from the K * n sub-pixels at the optimal viewing distance of the display device is 2 / 3 or more of the inter-pupillary distance. Therefore, multiple different parallax images can enter the pupil in a state where the left and right eye parallax is appropriate, the monocular depth of focus coincides with the binocular convergence depth, dizziness does not occur during viewing, and visual fatigue is avoided.

[0170] Although the preferred embodiments of the present invention have been described, those skilled in the art can make further changes and modifications to these embodiments if the basic inventive concept is clear. Therefore, the appended claims are intended to be construed as including the preferred embodiments within the scope of the present invention and all changes and modifications.

[0171] It is obvious to those skilled in the art that various changes and modifications can be made to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Thus, if these modifications and variations in the embodiments of the present invention fall within the scope of the claims of the present invention and the scope of equivalent technologies thereof, the present invention shall include those variations and modifications as well.

Claims

1. A display device, comprising: a display panel; and a light splitting element disposed on the display side of the display panel, wherein the display panel includes a plurality of pixel islands arranged in an array along a row direction and a column direction, each of the pixel islands includes n sub-pixels arranged at intervals along the row direction, where n is an integer greater than 1, the light splitting element includes a plurality of light splitting repeating units extending along the column direction and continuously arranged along the row direction, the light splitting repeating unit includes M light splitting structures extending along the column direction and continuously arranged along the row direction, each of the light splitting repeating units correspondingly covers K columns of the pixel islands, M and K are not the same, and a projection width of a main lobe viewing angle formed by light emitted from K*n sub-pixels at an optimal viewing distance of the display device is equal to or greater than 2 / 3 of an interpupillary distance.

2. The display device according to claim 1, wherein K*n and M are relatively prime to each other.

3. The display device according to claim 2, wherein after light emitted from a light emitting region of each of the sub-pixels in K pixel islands is split by the M light splitting structures, a spatially continuous light emitting region is formed.

4. The display device according to claim 3, wherein in the horizontal direction, a width of the M light splitting structures is the same as a width of K columns of the pixel islands.

5. The display device according to claim 4, wherein the sub-pixel includes a sub-pixel aperture region, and a ratio of a total width of n sub-pixel aperture regions to a width of the pixel island in the row direction is equal to or greater than 0.9 / M and less than or equal to 1.

6. The display device according to claim 5, wherein in the row direction, a ratio of a width of the sub-pixel aperture region to a width of the pixel island is i / M, and i is an integer greater than 1 or less than or equal to M-1.

7. The display device according to claim 6, wherein i = 1, and in the row direction, light emitting regions of each of the sub-pixels in K pixel islands are spatially complementarily joined.

8. The display device according to claim 6, wherein i>1, and in the row direction, spaces between light emitting regions of each of the sub-pixels in K pixel islands spatially overlap.

9. The display device according to claim 8, wherein in the row direction, light emitting regions of each of the sub-pixels in K pixel islands spatially uniformly overlap.

10. In the row direction, the absolute value of the difference in the widths of the different sub-pixel aperture regions is 2.5 μm or less. The display device according to any one of claims 5 to 9.

11. The display device further includes a spacer dielectric layer disposed between the optical splitting element and the display panel. The display device according to any one of claims 1 to 10.

12. The optical splitting structure is a cylindrical lens. The display device according to claim 11.

13. The cylindrical lens includes a first resin layer having protrusions and a planarization resin layer disposed on a side of the first resin layer away from the display panel. The refractive index of the planarization resin layer is smaller than the refractive index of the first resin layer. The display device according to claim 12.

14. The cylindrical lens is a liquid crystal lens. The display device according to claim 12.

15. The radius of curvature of the cylindrical lens is 1.01r or more and 1.22r or less. Here, 【Number 1】 n1 is the refractive index of the first resin layer or the refractive index of the e - light of the liquid crystal lens, n2 is the refractive index of the planarization resin layer or the refractive index of the o - light of the liquid crystal lens, n3 is the refractive index of the spacer dielectric layer, L1 is the optimal viewing distance of the display device, P1 is the width of the cylindrical lens in the row direction, and W is the projected width of the main lobe viewing angle formed by the light emitted from the sub - pixel at the optimal viewing distance. The display device according to claim 13 or claim 14.

16. M is 3, K is 1, n is 10, or M is 3, K is 1, n is 32, or M is 3, K is 2, n is 32, or M is 3, K is 4, n is 32. The display device according to any one of claims 1 to 15.

17. Every three pixel islands continuously arranged in the column direction form one pixel repetition unit. Within one pixel repetition unit, the display colors of the sub - pixels of the same pixel island are the same, and the display colors of the sub - pixels of different pixel islands are different. The display device according to any one of claims 1 to 16.

18. The display device further includes an eye - tracking system used to determine the position of the user's eyes in real time. The display device according to any one of claims 1 to 17.

19. A driving method for the display device according to any one of claims 1 to 18, In the two - dimensional display mode, based on the image in the display standby state, a first image driving signal corresponding to each pixel island is determined, and in order to form a two - dimensional image, the corresponding first image driving signal is loaded to all sub - pixels within the pixel island. In the three - dimensional display mode, a user's fixation area and non - fixation area in the display device are determined. Based on the image in the display standby state, the fixation area is driven at a first resolution to display an image, and the non - fixation area is driven at a second resolution to display an image. The first resolution is higher than the second resolution. A driving method for a display device.

20. The step of determining a user's fixation area and non - fixation area in the display device is obtaining the fixation area of the user's eyes in the display device through an eye - tracking system, and determining other areas other than the fixation area in the display device as non - fixation areas. The driving method for a display device according to claim 19.

21. The step of driving the fixation area at a first resolution to display an image and driving the non - fixation area at a second resolution to display an image based on the image in the display standby state is determining the coordinates of the user's eyes through an eye - tracking system, and based on the coordinates of the user's eyes, determining a left - eye view and a right - eye view; rendering a plurality of first - resolution images corresponding to the first resolution and a plurality of second - resolution images corresponding to the second resolution based on the left - eye view and the right - eye view; determining the sub - pixels corresponding to the left - eye view and the sub - pixels corresponding to the right - eye view within each pixel - island group; in the fixation area, based on the first - resolution image, providing a driving signal corresponding to the left - eye view to the sub - pixels corresponding to the left - eye view and providing a driving signal corresponding to the right - eye view to the sub - pixels corresponding to the right - eye view; in the non - fixation area, based on the second - resolution image, providing a driving signal corresponding to the left - eye view to the sub - pixels corresponding to the left - eye view and providing a driving signal corresponding to the right - eye view to the sub - pixels corresponding to the right - eye view. Here, each of the pixel island groups includes K columns of pixel islands covered by one of the optical division repeating units, and the direction of the line connecting the user's left eye and right eye is parallel to the row direction. The method for driving a display device according to claim 19 or claim 20.

22. The gaze tracking system includes N / 2 first cameras and N / 2 second cameras, where N = K * n, K * n is an even number, and the step of determining the coordinates of the user's eyes through the gaze tracking system and determining the left-eye view and the right-eye view based on the coordinates of the user's eyes is as follows: Determining the coordinates of the center of both eyes of the user and the central viewpoint corresponding to the coordinates of the center of both eyes of the user; Starting from the central viewpoint, setting N - 1 first viewpoints in the region corresponding to the user's left eye based on a predetermined viewpoint interval, and starting from the central viewpoint, setting N second viewpoints in the region corresponding to the user's right eye based on a predetermined viewpoint interval; Setting the N / 2 first cameras to the (N / 2)-th first viewpoint to the (N - 1)-th first viewpoint respectively, setting the N / 2 second cameras to the ((N / 2) + 1)-th second viewpoint to the N-th second viewpoint respectively, and obtaining the left-eye view with the N / 2 first cameras and obtaining the right-eye view with the N / 2 second cameras. The method for driving a display device according to claim 21.

23. The step of determining the sub-pixels corresponding to the left-eye view and the sub-pixels corresponding to the right-eye view within each pixel island group includes: Obtaining the emission angle spectrum of each sub-pixel and obtaining an angle spectrum boundary database; Determining the coordinates of the center of both eyes of the user based on the coordinates of the user's eyes; Determining the angle between the center of both eyes of the user and the center of each pixel island group; Determining a central sub-pixel corresponding to the center of both eyes of the user based on the angle between the center of both eyes of the user and the center of each pixel island group and the emission angle spectrum of each sub-pixel. When the coordinates of the center of both eyes of the user are in the right half of the central sub-pixel, the central sub-pixel and (N / 2 - 1) sub-pixels on its right correspond to the left-eye view, and N / 2 sub-pixels on the left of the central sub-pixel correspond to the right-eye view. When the coordinates of the centers of both eyes of the user are in the right half of the central sub-pixel, the N / 2 sub-pixels on the right side of the central sub-pixel correspond to the view of the left eye, and the central sub-pixel and the (N / 2 - 1) sub-pixels on its left side correspond to the view of the right eye. The method for driving a display device according to claim 22.

24. The gaze tracking system includes (N + 1) / 2 first cameras and (N + 1) / 2 second cameras, where N = K * n, K * n is an odd number, determining the coordinates of the user's eyes through the gaze tracking system, and the steps of determining the left-eye view and the right-eye view based on the coordinates of the user's eyes are as follows: Determining the coordinates of the centers of both eyes of the user and the central viewpoint corresponding to the coordinates of the centers of both eyes of the user; Starting from the central viewpoint, setting N first viewpoints in the region corresponding to the user's left eye based on a predetermined viewpoint interval, and starting from the central viewpoint, setting N second viewpoints in the region corresponding to the user's right eye based on a predetermined viewpoint interval; Setting the (N + 1) / 2 first cameras to the (N + 1) / 2-th first viewpoint to the N-th first viewpoint respectively, setting the (N + 1) / 2 second cameras to the (N + 1) / 2-th second viewpoint to the N-th second viewpoint respectively, and obtaining the left-eye view with the (N + 1) / 2 first cameras and obtaining the right-eye view with the (N + 1) / 2 second cameras. The method for driving a display device according to claim 21 includes the above steps.

25. The steps of determining the sub-pixels corresponding to the left-eye view and the sub-pixels corresponding to the right-eye view within each pixel island group are as follows: Obtaining the emission angle spectrum of each sub-pixel and obtaining an angle spectrum boundary database; Determining the coordinates of the centers of both eyes of the user based on the coordinates of the user's eyes; Determining the angle between the centers of both eyes of the user and the center of each pixel island group; Determining the central sub-pixel corresponding to the centers of both eyes of the user based on the angle between the centers of both eyes of the user and the center of each pixel island group and the emission angle spectrum of each sub-pixel. The above steps are included. The (N - 1) / 2 sub-pixels on the right side of the central sub-pixel correspond to the left-eye view, and the (N - 1) / 2 sub-pixels on the left side of the central sub-pixel correspond to the right-eye view. When the coordinates of the centers of both eyes of the user are in the right half of the central sub-pixel, the central sub-pixel corresponds to the left-eye view, and when the coordinates of the centers of both eyes of the user are in the right half of the central sub-pixel, the central sub-pixel corresponds to the right-eye view. The method for driving a display device according to claim 24.

Images