Naked eye 3D display device and display screen

Abstract

This application discloses a glasses-free 3D display device and a display screen. The glasses-free 3D display device includes: a display screen comprising multiple 3D display rows, each 3D display row comprising multiple 3D display pixels arranged sequentially along the direction of the 3D display row, each 3D display pixel comprising multiple sub-pixels, each sub-pixel having a light-emitting area; and a grating combined with the display screen; wherein the glasses-free 3D display device is configured such that, when multiple tangents perpendicular to the direction of the 3D display row are respectively arranged at different positions along a 3D display row, the relative difference between the maximum and minimum values ​​of the total intersection length generated by each tangent intersecting with the light-emitting area of ​​a sub-pixel of the same color in that 3D display row is less than or equal to 50%. This application can achieve good 3D display effects while eliminating the problems of 2D display quality defects.

Description

Technical Field

[0001] This application relates to the field of 3D display, specifically to glasses-free 3D display devices and displays. Background Technology

[0002] With the rapid development of display technology, 3D display, as a technology that can provide users with a more immersive experience, has gradually attracted widespread attention. Among various 3D display technologies, glasses-free 3D display has a superior user experience and promising application prospects due to its advantage of not requiring special glasses.

[0003] However, traditional glasses-free 3D display technology has its drawbacks: due to the interaction between the lenticular lens and the display screen, traditional glasses-free 3D display devices often experience a decline in display quality in 2D display mode, severely affecting the display effect and user experience. These display defects not only reduce image quality but may also cause viewing fatigue and even dizziness.

[0004] Therefore, there is an urgent need to develop an improved glasses-free 3D display technology that can achieve good 3D display effects while eliminating defects that affect the quality of 2D displays.

[0005] The background description is provided for the purpose of understanding the relevant technologies in this field and is not intended as an admission of prior art. Summary of the Invention

[0006] This application provides a glasses-free 3D display device and display screen, which at least partially solves the above-mentioned technical problems.

[0007] In this embodiment of the application, a glasses-free 3D display device is provided, comprising: a display screen including a plurality of 3D display rows, each of the 3D display rows including a plurality of 3D display pixels arranged sequentially along the direction of the 3D display row, each 3D display pixel including a plurality of sub-pixels, each sub-pixel having a light-emitting area and a black base area, the light-emitting area of ​​the sub-pixel being an opening area defined by the black base area; and a grating combined with the display screen; wherein, the glasses-free 3D display device is configured such that when multiple tangents perpendicular to the direction of the 3D display row are respectively set at different positions along a 3D display row, the relative difference between the maximum and minimum values ​​of the total intersection length generated by the intersection of each tangent with the light-emitting area of ​​the same color sub-pixel of the 3D display row is less than or equal to 50%.

[0008] In some embodiments, each of the 3D display pixels includes multiple groups of sub-pixels, each group of sub-pixels corresponding to the full primary color, wherein the number of groups of full primary color sub-pixels corresponds to the maximum number of views that the naked-eye 3D display device can display.

[0009] In some embodiments, the light-emitting areas of sub-pixels corresponding to the same primary color in each 3D display pixel are tilted in a given tilt direction and arranged in one or more rows along the 3D display row direction.

[0010] In some embodiments, the light-emitting areas of sub-pixels corresponding to the same primary color in each 3D display pixel are arranged horizontally in one or more rows along the 3D display row direction.

[0011] In some embodiments, the light-emitting areas of the same primary color sub-pixel of each 3D display pixel are staggered into multiple rows such that the light-emitting areas of adjacent primary color sub-pixels are staggered in the 3D display row direction, and the projections of the staggered light-emitting areas of the same primary color sub-pixels in the 3D display row direction are seamlessly connected to form a continuous projection coverage area.

[0012] In some embodiments, the same primary color sub-pixels of each of the 3D display pixels are arranged in a single row along the 3D display row direction, wherein, in the same primary color sub-pixels of each of the 3D display pixels, the black base region achieves the multi-row staggered arrangement of the light-emitting area by defining opening regions at different vertical positions within adjacent sub-pixels.

[0013] In some embodiments, the grating is a one-dimensional vertical grating.

[0014] In this embodiment of the application, a naked-eye 3D display device is provided, comprising: a display screen including a plurality of 3D display rows, each of the 3D display rows including a plurality of 3D display pixels arranged sequentially along the direction of the 3D display row, each 3D display pixel including a plurality of sub-pixels, each sub-pixel having a light-emitting area and a black base area, the light-emitting area of ​​the sub-pixel being an opening area defined by the black base area; a grating combined with the display screen; wherein the light-emitting areas of the sub-pixels in the 3D display rows are inclinedly arranged in a given tilt direction and arranged in rows, wherein the projection portions of the light-emitting areas of adjacent sub-pixels of the same color in the 3D display rows overlap in the direction of the 3D display rows.

[0015] In some embodiments, the projection direction of the tilt direction onto the 3D display row direction is defined as the tilt projection direction; the naked-eye 3D display device is configured such that a tangent line passing through the first top corner point of the light-emitting area of ​​the first color sub-pixel facing the tilt projection direction and perpendicular to the 3D display row direction intersects the edge of the light-emitting area of ​​the second color sub-pixel, the second color sub-pixel being a color sub-pixel adjacent to the first color sub-pixel in the tilt projection direction, the edge being adjacent to the second bottom corner point of the light-emitting area of ​​the second color sub-pixel facing the tilt projection direction, and the distance from the intersection of the tangent line and the edge to the second bottom corner point being less than or equal to 1 / 2 of the length of the short side of the light-emitting area.

[0016] In some embodiments, the naked-eye 3D display device is configured such that a tangent line passing through the first top corner point of the light-emitting area of ​​the first monochromatic subpixel facing the oblique projection direction and perpendicular to the 3D display row direction also passes through the second bottom corner point of the light-emitting area of ​​the second monochromatic subpixel facing the oblique projection direction, wherein the second monochromatic subpixel is a monochromatic subpixel adjacent to the first monochromatic subpixel in the oblique projection direction.

[0017] In some embodiments, the projection overlap range of the light-emitting areas of adjacent sub-pixels of the same color in the 3D display row direction is 0% to 30% of the projection width of the light-emitting areas in the 3D display row direction.

[0018] In some embodiments, each of the 3D display pixels includes multiple groups of sub-pixels, each group of sub-pixels corresponding to the full primary color, wherein the number of groups of full primary color sub-pixels corresponds to the maximum number of views that the naked-eye 3D display device can display.

[0019] In some embodiments, the light-emitting areas of sub-pixels corresponding to the same primary color in each 3D display pixel are tilted in a given tilt direction and arranged in one or more rows along the 3D display row direction.

[0020] In some embodiments, the light-emitting areas of sub-pixels corresponding to the same primary color in each 3D display pixel are arranged horizontally in one or more rows along the 3D display row direction.

[0021] In some embodiments, the light-emitting areas of the same primary color sub-pixel of each 3D display pixel are staggered into multiple rows such that the light-emitting areas of adjacent primary color sub-pixels are staggered in the 3D display row direction, and the projections of the staggered light-emitting areas of the same primary color sub-pixels in the 3D display row direction are seamlessly connected to form a continuous projection coverage area.

[0022] In some embodiments, the same primary color sub-pixels of each of the 3D display pixels are arranged in a single row along the 3D display row direction, wherein, in the same primary color sub-pixels of each of the 3D display pixels, the black base region achieves the multi-row staggered arrangement of the light-emitting area by defining opening regions at different vertical positions within adjacent sub-pixels.

[0023] In some embodiments, the grating is a one-dimensional vertical grating.

[0024] In some embodiments, a display screen for a glasses-free 3D display device is provided, the display screen being the display screen of a glasses-free 3D display device as described above.

[0025] This application provides a glasses-free 3D display device. This glasses-free 3D display device achieves high-quality 3D display effect while ensuring lossless display in 2D display mode through a specific arrangement of 3D display pixels and / or sub-pixels of the same color in the 3D display row formed by the arrangement of 3D display pixels. Moreover, it can effectively solve the technical problem of visual defects such as moiré patterns, broken lines, and jagged edges in 2D display mode caused by the interaction between the grating and the display screen in traditional glasses-free 3D display technology.

[0026] Specifically, in some aspects, embodiments of this application control the relative difference between the maximum and minimum values ​​of the total length of the intersection of the vertical tangent and the light-emitting area of ​​the same color sub-pixels in the 3D display row to be less than or equal to (or lower than) a preset threshold. This achieves a more uniform distribution of the light-emitting areas of the same color sub-pixels across the entire display row, mitigating or eliminating brightness unevenness and display line breaks caused by uneven distribution of the sub-pixel light-emitting areas. This uniform distribution design ensures higher brightness consistency and continuity in both 2D and 3D display modes, reducing or avoiding visual defects such as moiré patterns, broken lines, and jagged edges that appear in 2D display modes.

[0027] Specifically, in other aspects, embodiments of this application, through the inclined arrangement of the light-emitting areas of sub-pixels and the partial overlap of the projections of adjacent sub-pixels of the same color, also achieve the continuity and uniformity of the optical distribution of the light-emitting areas of the same-color sub-pixels in the visual viewing direction. This reduces or eliminates the optical discontinuities that may occur in displays with traditional vertical or horizontal arrays of sub-pixels, and the resulting visual defects such as moiré patterns, broken lines, and jagged edges. Furthermore, by precisely controlling the intersection point of the vertical tangent passing through the corner of the same-color sub-pixel with the edge of the light-emitting area of ​​the adjacent same-color sub-pixel from a geometric configuration perspective, the distance from the intersection point to the bottom corner is less than the short side length of the light-emitting area, preferably within a preset fractional proportion of the short side length of the light-emitting area. This embodiment, through geometric control, ensures the uniformity of light emission from the light-emitting areas of the same-color sub-pixels, further reducing or eliminating the aforementioned visual defects such as moiré patterns, broken lines, and jagged edges. Furthermore, by achieving a geometric alignment configuration where the vertical tangent passing through the top corner of the first sub-pixel of the same color precisely passes through the bottom corner of the adjacent second sub-pixel of the same color, this embodiment largely eliminates light emission fluctuations and further eliminates or greatly reduces the aforementioned visual defects such as moiré patterns, broken lines, and jagged edges. This further solution significantly expands the display capabilities and application scenarios of the device, enabling viewers to see stereoscopic images with appropriate parallax from different angles, achieving a more natural and comfortable naked-eye 3D visual experience. At the same time, it ensures excellent display effects when viewing 2D content using this naked-eye 3D display device, significantly enhancing the practicality and commercial value of the naked-eye 3D display device.

[0028] Specifically, in other aspects, embodiments of this application achieve continuous projection coverage under high-density pixel arrangement through the staggered arrangement design of the light-emitting areas of the same primary color sub-pixels. This embodiment effectively solves the optical crosstalk problem, thereby ensuring seamless splicing of optical projection while maintaining display resolution and pixel density, avoiding the dark or bright line defects common in high-resolution displays, and achieving a high-quality, high-resolution naked-eye 3D display effect. Furthermore, through the innovative design of defining opening areas at different vertical positions by the black base area, this further embodiment achieves a complex geometric arrangement of the light-emitting areas while maintaining the simplicity of the physical arrangement of sub-pixels, significantly simplifying the complexity and cost of the manufacturing process, and improving the manufacturability and yield of the product.

[0029] Other optional features and technical effects of the embodiments of this application are partly described below and partly apparent from reading this document. Attached Figure Description

[0030] The embodiments of this application will now be described in detail with reference to the accompanying drawings. The elements shown are not limited to the scale shown in the drawings, and the same or similar reference numerals in the drawings represent the same or similar elements.

[0031] Figure 1 A schematic diagram of the display screen of a naked-eye 3D device according to an embodiment of this application is shown, in which the light-emitting area is shown.

[0032] Figure 2 It shows Figure 1 An exploded perspective view of the naked-eye 3D device of the illustrated embodiment, schematically showing a user viewing the naked-eye 3D device.

[0033] Figure 3 It shows Figure 1 An exploded end view of the naked-eye 3D device of the illustrated embodiment.

[0034] Figure 4 It shows Figure 1 A front view of the naked-eye 3D device of the illustrated embodiment, wherein the 3D display rows and 3D display pixels are shown magnified.

[0035] Figure 5 It shows Figure 1 A schematic diagram of the first structure of the sub-pixel light-emitting area arrangement of the naked-eye 3D device in the embodiment shown.

[0036] Figure 6 It shows Figure 1 A schematic diagram of the second structure of the sub-pixel light-emitting area arrangement of the naked-eye 3D device in the embodiment shown.

[0037] Figure 7 It shows Figure 1A schematic diagram of the display screen of the naked-eye 3D device of the embodiment shown, in which the light-emitting area and the non-light-emitting area are shown in contrast.

[0038] Figure 8 A schematic diagram of the beam spread direction of a one-dimensional vertical grating in a naked-eye 3D device according to an embodiment of this application is shown.

[0039] Figure 9 A schematic diagram of the display screen of a naked-eye 3D device according to another embodiment of this application is shown.

[0040] Figure 10 It shows Figure 9 An exploded perspective view of the naked-eye 3D device of the illustrated embodiment, schematically showing a user viewing the naked-eye 3D device.

[0041] Figure 11 It shows Figure 9 A schematic diagram of the first structure of the sub-pixel light-emitting area arrangement of the naked-eye 3D device in the embodiment shown.

[0042] Figure 12 It shows Figure 9 A schematic diagram of the second structure of the sub-pixel light-emitting area arrangement of the naked-eye 3D device in the embodiment shown.

[0043] Figure 13 It shows Figure 9 A schematic diagram of the display screen of the naked-eye 3D device of the embodiment shown, in which the light-emitting area and the non-light-emitting area are shown in contrast.

[0044] Figure 14 A schematic diagram of the structure of 3D display pixels of a naked-eye 3D device according to another embodiment of this application is shown.

[0045] Figure 15 A schematic diagram of the structure of 3D display pixels of a naked-eye 3D device according to another embodiment of this application is shown.

[0046] Figure 16 A schematic diagram of the structure of 3D display pixels of a naked-eye 3D device according to another embodiment of this application is shown.

[0047] Figure 17 A schematic diagram of the structure of 3D display pixels of a naked-eye 3D device according to another embodiment of this application is shown.

[0048] Figure 18 A schematic diagram of the structure of 3D display pixels of a naked-eye 3D device according to another embodiment of this application is shown.

[0049] Figure 19 A schematic diagram of the structure of 3D display pixels of a naked-eye 3D device according to another embodiment of this application is shown.

[0050] Figure 20 A schematic diagram of the structure of 3D display pixels of a naked-eye 3D device according to another embodiment of this application is shown.

[0051] Figure 21 A schematic diagram of the structure of 3D display pixels of a naked-eye 3D device according to another embodiment of this application is shown.

[0052] Figure 22 A schematic diagram of the structure of 3D display pixels of a naked-eye 3D device according to another embodiment of this application is shown. Detailed Implementation

[0053] To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to specific embodiments and accompanying drawings. Here, the illustrative embodiments and descriptions of this application are used to explain this application, but are not intended to limit this application.

[0054] Definitions.

[0055] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connection" and "linking" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0056] In the description of this application, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature.

[0057] In this embodiment, a vertical tangent line is provided within a 3D display row. The length of the portion where the vertical tangent line intersects with the light-emitting area of ​​a certain sub-pixel is defined as the intersection length generated by the intersection of the tangent line and the light-emitting area of ​​the sub-pixel. In this embodiment, the intersection portion can also be referred to as the "cut" generated by the tangent line in the light-emitting area of ​​the sub-pixel. Therefore, in some places herein, the cut length may be used instead of the intersection length, which falls within the scope of this invention.

[0058] In this embodiment, when the vertical tangent coincides with the edge of the light-emitting area of ​​the sub-pixel, the intersection length (cut length) of the overlapping portion is calculated as half the length of the overlapping portion of the vertical tangent and the edge of the light-emitting area of ​​the sub-pixel. As an explanation and not a limitation, the overlapping portion can ideally be interpreted as emitting light only "on one side," thus the intersection length (cut length) can be calculated as half the actual length of the overlapping portion.

[0059] In this embodiment, the total intersection length of a vertical tangent line intersecting with the light-emitting area of ​​a sub-pixel of the same color in a 3D display row refers to the sum of the intersection lengths of the light-emitting areas of the sub-pixels of the same color generated by the vertical tangent line in the 3D display row. Specifically, when the vertical tangent line intersects with multiple light-emitting areas of sub-pixels of the same color in the 3D display row, the total intersection length is the sum of the individual intersection lengths; when a vertical tangent line intersects only with a single light-emitting area of ​​a sub-pixel of the same color in the 3D display row, the total intersection length is the length of that single intersection.

[0060] In the embodiments of this application, the sub-pixel light-emitting area has a general meaning in the art, referring to the area in each sub-pixel that effectively emits or transmits light. In some embodiments, for a single LED without a phosphor layer / quantum dot layer, the sub-pixel light-emitting area includes the area remaining after deducting the electrode-blocked portion from the PN junction region of the LED. In some embodiments, for LEDs with a phosphor layer, quantum dot layer, or scattering layer, the sub-pixel light-emitting area includes the phosphor region, quantum dot region, and diffusion region corresponding to the sub-pixel. In some embodiments, for a liquid crystal display, the sub-pixel light-emitting area is an opening region defined by a black substrate region, also known as a black matrix (BM). In some embodiments, the light-emitting area may be enlarged by the effect of a grating or diffusion film to increase the projection area.

[0061] In the embodiments of this application, subpixel has a general meaning in the art, referring to the smallest display unit that displays a single color. In the embodiments of this application, when simply referred to as "pixel," it has a general meaning in the art; however, a 3D display pixel refers to the smallest 3D display unit providing dual-view (viewpoint) or multi-view (viewpoint) 3D display in a glasses-free 3D display device. However, the embodiments of this application do not exclude the possibility that a display screen with 3D display pixels can be used for 2D display, and in 2D display, each 3D display pixel may not be considered the smallest display unit overall. In the embodiments of this application, a 3D display row refers to 3D display pixels arranged in a row, for example, including multiple 3D display pixels arranged sequentially along the direction of the 3D display row. In the embodiments of this application, multiple views (viewpoints) refer to three or more views (viewpoints).

[0062] Exemplary embodiments of the present application will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this application will be thorough and complete, and will fully convey the scope of the present application to those skilled in the art.

[0063] Currently, naked-eye 3D display technology typically uses gratings superimposed in front of or behind a 2D display screen to make each sub-pixel visible only in a specific location in space. This allows images with a certain parallax to be displayed on the sub-pixels visible to the left and right eyes respectively, giving the viewer a sense of three-dimensionality.

[0064] However, in-depth research revealed that traditional glasses-free 3D display devices suffer from numerous technical challenges. For example, the interaction between the grating and the display pixels produces severe visual defects such as moiré patterns, broken lines, and jagged edges. These defects not only affect the 3D display effect but are also more pronounced in 2D display mode, significantly reducing display quality.

[0065] This invention has discovered that the aforementioned defects may stem from the following reason: during display, there is uneven luminance of subpixels in the display direction parallel to the human eye. This invention precisely recognizes that this usually originates from the arrangement of subpixels of the same color (especially red subpixels) in the 3D display device and its interaction with the grating. Furthermore, this invention recognizes that traditional subpixel arrangements have inherent defects when used with gratings: when the subpixels of the display screen are arranged in the current conventional manner, such as horizontally or vertically, gaps often exist in the projection of the light-emitting areas of adjacent subpixels of the same color in the display direction, which may form obvious dark lines or broken lines as visual defects. Furthermore, these gaps may be magnified by the grating.

[0066] Based on the above understanding, this application's embodiments achieve uniform control of the emission of sub-pixels of the same color by innovatively designing the sub-pixel arrangement structure and the coordination relationship of the grating in the display screen. This keeps the relative differences in emission at different positions within the same 3D display row within a small range. Simultaneously, by optimizing the tilted arrangement and projection overlap of the sub-pixel emission areas, the gap and jagged edge problems of traditional solutions are eliminated. These technological improvements work together to not only significantly enhance the 3D display effect of the glasses-free 3D display device, but more importantly, to achieve a 2D display quality that is almost indistinguishable from that of a traditional 2D display screen, significantly improving the practicality and commercial value of this glasses-free 3D display device.

[0067] Specifically, see, for example Figures 1 to 8 The first embodiment shown in this application provides a naked-eye 3D display device 1.

[0068] like Figures 1 to 8 As shown, the naked-eye 3D display device 1 includes a display screen 10 and a grating 18 combined with the display screen 10. The display screen 10 includes a plurality of 3D display rows 11. In this embodiment, the 3D display row 11 may include a plurality of 3D display pixels 12 arranged sequentially along the direction of the 3D display row. As mentioned above, a 3D display pixel is the smallest 3D display unit when providing dual-view (viewpoint) or multi-view (viewpoint) 3D display in a naked-eye 3D display device. For explanation, when the 3D display device performs 3D display, the 3D display pixel 12 corresponds to the image content of all views at the same position point, and the 3D display row 11 corresponds to a complete row of image content of all views. It should be noted that when actually performing 3D display, the sub-pixels of the 3D display pixels do not necessarily need to be displayed corresponding to all views (viewpoints). For example, in a 3D display device with human eye tracking function, it is possible that only the sub-pixels of the 3D display pixels corresponding to the view at the current human eye position are activated. Therefore, the "all views (viewpoints)" or "maximum number of views (viewpoints)" mentioned in the embodiments of this application refers to the maximum number of views (viewpoints) of 3D display that the naked-eye 3D display device or its 3D display rows or 3D display pixels can support by design. For example, in Figures 1 to 8 In the illustrated embodiment, the maximum number of views (viewpoints) corresponding to the naked-eye 3D display device or its 3D display rows or 3D display pixels is 6, as described below. Figures 9 to 13 In the embodiment shown, the maximum number of views (viewpoints) corresponding to the naked-eye 3D display device or its 3D display rows or 3D display pixels is 4.

[0069] In this embodiment, the 3D display line direction corresponds to the direction on the display screen 10 that is parallel to the line connecting the left and right eyes when the user 9's eyes (e.g., right eye ER and left eye EL) are viewing the 3D display image directly from the optimal 3D image viewing position. Figures 2 to 4 As shown, the direction X1 of the 3D display row 11 on the display screen 10 is parallel to the direction X2 of the line connecting the left and right eyes ER and EL. In some embodiments, the direction of the 3D display row is horizontal, but this application is not limited to this. For ease of description, in the following multiple embodiments, the direction of the 3D display row 11 is defined as horizontal, that is, defined as the X-axis direction. The direction perpendicular to the X-axis on the 3D display screen 10 is defined as the Y-axis, and the direction perpendicular to the plane of the 3D display screen is defined as the Z-axis, thereby establishing an XYZ rectangular coordinate system. Figure 2 As shown, in this coordinate system, when a viewer looks directly at the 3D display screen, the line connecting their two eyes is parallel to the 3D display line 11 direction, that is, the line connecting their two eyes is parallel to the X-axis.

[0070] Continue to refer to Figures 1 to 8Each 3D display pixel 12 includes multiple sub-pixels 13, and each sub-pixel 13 has a light-emitting area 14. For example... Figures 2 to 4 As shown, in an LCD structure, for example, the display screen 10 includes a backlight layer 17 and a pixel color filter 16, wherein the light source for the light-emitting area can be provided by the backlight layer, and the color displayed in the light-emitting area can be provided by the pixel color filter 16. In this embodiment, each sub-pixel 13 has a rectangular light-emitting area 14, and each rectangular light-emitting area includes four corner points and four sides. More specifically, each 3D display pixel 12 includes multiple groups of sub-pixels, each group of sub-pixels being a group of full-primary-color sub-pixels, wherein the number of groups of full-primary-color sub-pixels corresponds to the maximum number of views that the naked-eye 3D display device can display, i.e., the number of groups of full-primary-color sub-pixels is k. In this embodiment, k=6, that is, the number of groups of full-primary-color sub-pixels is 6, corresponding to the naked-eye 3D display device being able to display 6 views. More specifically, as Figures 1 to 8 The 3D display pixels or 3D display rows are arranged in rows of sub-pixels corresponding to the same primary color, for example, sub-pixels corresponding to the same primary color are arranged in a row.

[0071] In this embodiment, the primary color configuration can have various options, such as, but not limited to, three-primary-color, four-primary-color, and five-primary-color. In one specific example, the primary colors are three-primary-color, using R, G, and B. Here, a 3D display pixel 12 includes kR+kG+kB, that is, when k=6, the 3D display pixel 12 includes 6 red sub-pixels 131, 6 green sub-pixels 132, and 6 blue sub-pixels 133. In another specific example, the primary colors are four-primary-color, for example, it can be R, G, B, and Y, that is, a 3D display pixel 12 includes kR+kG+kB+kY; it can also be CMYK or RGBW, that is, a 3D display pixel 12 includes kC+kM+kY+kK or kR+kG+kB+kW.

[0072] Continue to refer to Figures 1 to 8 Each sub-pixel 13 includes a light-emitting area 14 and a non-light-emitting area. In one specific embodiment, such as Figure 7 As shown, for example in an LCD structure, the non-light-emitting area mentioned above can be formed by a black base area 15 (also called a black matrix), and the light-emitting area 14 of each sub-pixel 13 is defined by the opening area of ​​the black base area 15, for example, the light-emitting area 141 of the red sub-pixel, the light-emitting area 142 of the green sub-pixel, and the light-emitting area 143 of the blue sub-pixel.

[0073] Continue to refer to Figures 1 to 8 And such as Figure 5As best shown, the light-emitting areas of the sub-pixels within the 3D display row 11 of the display screen 10 are tilted in a given tilt direction and arranged in rows, and the projection portions of the light-emitting areas 14 of adjacent sub-pixels 13 of the same color within the 3D display row 11 overlap in the 3D display row direction X1. In this embodiment, the tilt direction (tilt angle) is determined based on the vertical direction perpendicular to the display row direction; for example, the angle between the tilt direction and the vertical direction is defined as the tilt angle.

[0074] like Figure 5 Specifically, the image shows a sub-pixel light-emitting area of ​​row 11 in a 3D display. More specifically, the red sub-pixel light-emitting areas 141 are arranged at an angle, forming a series of tilted rectangular light-emitting areas, rather than a traditional horizontal or vertical arrangement. Figure 5 As shown, the projections of adjacent red sub-pixel light-emitting areas 141 onto the 3D display row direction X1 are P1 and P2, respectively. These two projection areas overlap each other on the 3D display row direction X1, forming a projection overlap area P3, achieving continuous projection coverage without gaps. Similarly, the green sub-pixel light-emitting areas 142 and blue sub-pixel light-emitting areas 143 can also adopt the same tilted arrangement. In some embodiments, not only do the light-emitting areas 14 of the same color sub-pixels within a single 3D display pixel 12 overlap, but the projections of the light-emitting areas 14 of the same color sub-pixels between different 3D display pixels 12 onto the 3D display row direction X1 can also overlap. This cross-pixel projection overlap further ensures the continuity and uniformity of the optical distribution of the same color sub-pixels across the entire 3D display row 11.

[0075] Therefore, as Figure 5 and Figure 6 As shown, the overlapping range of the projection of the light-emitting areas 14 of adjacent sub-pixels of the same color in the 3D display row 11 in the direction of the 3D display row 11 is 0% to 30%, preferably 0%-10%, more preferably 10%-20%, and even more preferably 20%-30% of the projection width of the light-emitting areas in the direction of the 3D display row 11. The common feature of the above projection connection methods is that no gaps are left between adjacent projections, thereby avoiding dark lines or broken lines in the displayed image and achieving a better display effect.

[0076] Furthermore, embodiments of this application can achieve a more optimized display effect by controlling the tilted geometric configuration of the rectangular light-emitting area, and more specifically by controlling the corner position relationship of the rectangular light-emitting areas of adjacent sub-pixels of the same color.

[0077] In some embodiments, when the light-emitting areas are inclined in a given tilt direction and arranged in rows, the shape of the light-emitting areas can be as follows: Figure 1 The rectangle shown can also be as follows: Figure 16The parallelogram shown is also applicable to the features and technical effects described in the foregoing embodiments. It can achieve the same functions as the rectangular light-emitting area, including technical features such as tilted arrangement, projection overlap, and uniform distribution of total intersection length, thereby effectively reducing or eliminating display defects.

[0078] In some embodiments, the tilt projection direction is determined based on the projection direction of the tilt direction in the 3D display row direction. Figure 5 For example, the light-emitting areas of the sub-pixels are arranged in an inclined direction from the upper right to the lower left. The upper right corner of each light-emitting area is closer to the right side of the display row than its lower left corner. The projection direction of this inclined direction in the horizontal 3D display row direction is to the right, so the inclined projection direction is to the right.

[0079] In some embodiments, the light-emitting area of ​​each sub-pixel has a first top corner point in the oblique projection direction, a second bottom corner point in the oblique projection direction, and a third top corner point in the opposite direction of the oblique projection direction. Within a 3D display row, each sub-pixel has two adjacent sub-pixels of the same color, one in the oblique projection direction and the other in the opposite direction. In some embodiments, the naked-eye 3D display device 1 can be configured such that a tangent line passing through the first top corner point of the light-emitting area of ​​the first sub-pixel of the same color, facing the oblique projection direction and perpendicular to the direction of the 3D display row 11, intersects the light-emitting area of ​​the second sub-pixel of the same color, wherein the second sub-pixel of the same color is the same-color sub-pixel adjacent to the first sub-pixel of the same color in the oblique projection direction. It should be noted that in this embodiment, "facing the oblique projection direction" and "in the oblique projection direction" refer to the projection direction along the oblique direction of the sub-pixel's light-emitting area in the horizontal 3D display row direction. Figure 5 Taking the right-tilted arrangement as an example, "corner point facing the tilted projection direction" refers to the corner point on the right side of the rectangular light-emitting area. Correspondingly, "top corner point facing the tilted projection direction" refers to the upper right corner point, which is the first top corner point, and "bottom corner point facing the tilted projection direction" refers to the lower right corner point, which is the second bottom corner point. Similarly, "adjacent sub-pixels of the same color in the tilted projection direction" refers to the sub-pixels on the right side. For example, R2 is the adjacent sub-pixel of the same color of R1 in the tilted projection direction (while R1 is the adjacent sub-pixel of the same color of R2 in the opposite direction of the tilted projection direction).

[0080] Specifically, such as Figure 5 and Figure 6In the preferred embodiment shown, the naked-eye 3D display device 1 is configured such that a tangent line passing through the first top corner of the light-emitting area of ​​the first sub-pixel of the same color, facing the oblique projection direction and perpendicular to the direction of the 3D display row 11, also passes through the second bottom corner of the light-emitting area of ​​the second sub-pixel of the same color, facing the oblique projection direction. The second sub-pixel of the same color is a sub-pixel of the same color adjacent to the first sub-pixel of the same color in the oblique projection direction. The tangent line intersects the edge of the light-emitting area of ​​the second sub-pixel of the same color, and the edge is adjacent to the second bottom corner of the light-emitting area of ​​the second sub-pixel of the same color facing the oblique projection direction. The distance from the intersection of the tangent line and the edge to the second bottom corner can be less than or equal to 1 / 2 of the length of the shorter side of the rectangular light-emitting area, preferably less than or equal to 30%, more preferably less than or equal to 20%, more preferably less than or equal to 15%, and more preferably less than or equal to 10%. In a specific embodiment, the tangent line intersects the bottom edge of the light-emitting area of ​​the second sub-pixel of the same color, and the intersection point is located in the segment (including the bottom corner) between the midpoint of the bottom edge of the second sub-pixel of the same color and the bottom corner facing the oblique projection direction.

[0081] Furthermore, embodiments of this application can optimize display effects by controlling the uniformity of light distribution in sub-pixels of the same color, more specifically by controlling the difference in the total intersection length generated by the intersection of the vertical tangent and the light-emitting area of ​​the sub-pixel of the same color. For example... Figures 1 to 8 As shown and as Figure 6 Ideally, the naked-eye 3D display device 1 is configured such that when multiple tangents perpendicular to the direction of the 3D display row 11 are respectively arranged at different positions along a 3D display row 11, the relative difference between the maximum and minimum values ​​of the total intersection length generated by the intersection of each tangent with the light-emitting area of ​​the same color sub-pixel of the 3D display row 11 is less than or equal to 50%, preferably less than or equal to 30%, more preferably less than or equal to 20%, more preferably less than or equal to 15%, and more preferably less than or equal to 10%.

[0082] In specific implementation, such as Figure 6 As shown, multiple vertical tangents can be arbitrarily set in a 3D display row 11. The length of the portion where the vertical tangent intersects with the light-emitting area of ​​a certain sub-pixel is defined as the intersection length generated by the intersection of the tangent and the light-emitting area of ​​the sub-pixel. This intersection portion can also be called the "cut" generated by the tangent in the light-emitting area of ​​the sub-pixel, so the intersection length can also be called the cut length. When the vertical tangent coincides with the edge of the light-emitting area of ​​the sub-pixel, the intersection length (cut length) of the overlapping portion is calculated as 1 / 2 of the length of the overlapping portion of the vertical tangent and the edge of the light-emitting area of ​​the sub-pixel. This overlapping portion can be understood as only "one side" emits light.

[0083] In a specific example, such as Figure 6 As shown, a 3D display has light-emitting areas with several sub-pixels distributed within a row. Assume the height of each light-emitting area is d. Figure 6As shown, vertical tangents Y1, Y2, Y3, Y4, etc., are set at any N (N≥2) positions between the center 61 of the left red sub-pixel and the center 62 of the right red sub-pixel, forming cut lengths d1, d2, d3, d4+d4', etc., respectively. Specifically, vertical tangent Y1 intersects the second light-emitting area shown in the figure, with a cut width of d1; tangent Y2 passes through the upper right corner of the third light-emitting area and the lower right corner of the fourth light-emitting area shown in the figure, thus intersecting the fourth light-emitting area, with a cut width of d2; tangent Y3 intersects the fifth light-emitting area shown in the figure, with a cut width of d3; tangent Y4 intersects the seventh and eighth light-emitting areas shown in the figure, with cut widths of d4 and d4' at the two positions, respectively. The sum of the light-emitting area cut lengths of the sub-pixels produced by a vertical tangent on the same color sub-pixel is obtained, which is the total intersection length.

[0084] In a 3D display row containing all sub-pixels of the same color, vertical tangents are set at N (N≥2) positions between the centers of the sub-pixels of the same color at both ends. The widths of the cuts formed by the vertical tangents at any position m are summed to obtain the sum of the cut widths Dm. The sums of the cut widths of the sub-pixels of the same color formed by any N vertical tangents are D1 (D1= d1), D2 (D2= d2), D3 (D3= d3), D4 (D4= d4+ d4')...DN. Let the sum of the maximum cut widths be Di, and the sum of the minimum cut widths be Dj. Then Di and Dj satisfy the relationship: (Di-Dj) / Di≤0.15. Figure 6 In the embodiment shown, (Di-Dj) / Di≈0.

[0085] In some embodiments, a vertical tangent can be set at any position of the 3D display row 11 for measurement, and the total intersection length obtained should meet the uniformity requirements, thereby ensuring the uniformity of optical distribution on the entire 3D display row.

[0086] Continue to refer to Figures 1 to 8 In this embodiment, the grating 18 combined with the display screen 10 is a one-dimensional vertical grating. For example... Figure 2 and Figure 4 As shown, the grating 18 is disposed between the human eye EL, ER and the 3D display pixel 12.

[0087] In this embodiment of the application, the one-dimensional vertical grating is defined as an optical element that causes the light beam emitted from the display screen to spread primarily along a one-dimensional direction. For example... Figure 8As shown, let the center emission direction of one of the beams after passing through a one-dimensional grating and a sub-pixel 13 (the order doesn't matter) on the display screen 10 be the Z-axis. On the YZ section at a distance d from the sub-pixel 13, the direction of the long side of the minimum bounding rectangle ABCD of the beam profile is defined as the main beam expansion direction of the one-dimensional vertical grating. The aspect ratio of the minimum bounding rectangle is greater than 2. If BC > AB, then the BC direction is defined as the main beam expansion direction of the one-dimensional vertical grating. The one-dimensional vertical grating is configured such that the main beam expansion direction of the one-dimensional vertical grating is perpendicular to the direction of the 3D display row 11. Figure 8 As shown, the main beam extension direction BC of the one-dimensional vertical grating is set to be perpendicular to the 3D display row direction X, that is, BC⊥X.

[0088] In this embodiment, the one-dimensional vertical grating is a prism grating, which covers the display screen. The axial direction of each prism in the prism grating is perpendicular to the 3D display row direction. Specifically, the prism grating, also called a lenticular lens grating, is composed of a precisely arranged array of lenticular lenses. A portion of the prism grating is cut off by two parallel longitudinal sections. The curved surface of each prism on the section is an arc with a radius of r. The parallel lines connecting the centers of the two sections of the same prism (e.g., parallel lines passing through the bottom plane of the prism) can be the axes C1, C2, C3, and C4 of that prism. The axes of all prisms lie on a plane parallel to the XOY plane, and all axes are perpendicular to the X-axis direction, i.e., perpendicular to the 3D display row direction. The profile of the section perpendicular to the lenticular lens axis can be an arc, or other quadratic curves or higher-order curves. After passing through the prism grating, the beam extension direction of each stage of the point light source is basically parallel to the prism axis, so the prism grating is a type of one-dimensional vertical grating. The main beam extension direction of the prism grating is perpendicular to the 3D display row 11 direction, realizing one-dimensional directional extension of the beam.

[0089] In an interpretive and not limiting sense, the grating 18 is used to achieve spatial separation of parallax images. Through the optical modulation of the grating, the light emitted from each sub-pixel 13 is directionally projected onto a specific area in space, allowing the viewer's left and right eyes to receive different images with parallax respectively, thereby producing a stereoscopic visual effect. Specifically, since k=6 in this embodiment, each 3D display pixel 12 contains 6 groups of RGB sub-pixels. By displaying image content with appropriate parallax on these 6 groups of sub-pixels respectively, eyes located at different viewing positions (e.g., multiple users or users moving to different positions) can receive corresponding parallax images respectively.

[0090] refer to Figures 9 to 13 This illustrates another embodiment of the naked-eye 3D display device 2 according to this application. (Compared to...) Figures 1 to 8The tilted arrangement of the embodiments shown is different. This embodiment adopts a different sub-pixel (light-emitting area) arrangement scheme and uses a slit grating as the grating.

[0091] like Figure 9 and Figure 13 As shown, the display screen 20 includes a plurality of 3D display rows 21, and each 3D display row 21 includes a plurality of 3D display pixels 22 arranged sequentially along the 3D display row direction. (Reference) Figure 10 ,and Figures 1 to 8 The illustrated embodiment is similar, and an XYZ Cartesian coordinate system can be established, where the 3D display line direction is defined as the X-axis. In this coordinate system, when a viewer looks directly at the 3D display screen, the line connecting their two eyes is parallel to the 3D display line direction, that is, the line connecting their two eyes is parallel to the X-axis.

[0092] like Figure 9 and Figure 10 As shown, in this embodiment, each 3D display pixel 22 includes multiple sets of primary color sub-pixels, specifically k=4 sets, that is, each 3D display pixel 22 includes 4 red sub-pixels 231, 4 green sub-pixels 232 and 4 blue sub-pixels 233. Correspondingly, the maximum number of views that this naked-eye 3D display device 2 can display is 4.

[0093] Different from Figures 1 to 8 The illustrated embodiment shows a tilted arrangement where the light-emitting areas of sub-pixels corresponding to the same primary color in each 3D display pixel 22 are horizontally arranged in one or more rows along the 3D display row direction. For example... Figure 9 and Figures 11-12 As shown, a total of 6 rows of sub-pixels, consisting of 2 rows of red sub-pixels 231, 2 rows of green sub-pixels 232, and 2 rows of blue sub-pixels 233, constitute a 3D display row 21.

[0094] like Figure 9 and 13 As shown, the light-emitting areas of the same primary color subpixels of each 3D display pixel 22 are arranged in multiple staggered rows, so that the light-emitting areas of adjacent primary color subpixels are staggered in the 3D display row direction. Figure 10 As shown, the display screen 20 includes a backlight layer 27 and a color filter layer 26. In the LCD structure of this embodiment, as... Figure 13 As shown, each sub-pixel 23 has a rectangular light-emitting area 24, and each rectangular light-emitting area 24 includes four corner points and four sides.

[0095] Each sub-pixel 23 also has a black base region (black matrix) 25. In this embodiment, the black base region 25 (also referred to as the black matrix) defines the light-emitting area of ​​each sub-pixel 23, that is, the light-emitting area 24 of each sub-pixel is the opening area defined by the black base region. For example, the light-emitting area 241 of the red sub-pixel is the opening area of ​​the black base region 25. The light-emitting areas of adjacent sub-pixels are staggered due to the different positions of the black base regions 25, as described below. Figure 13 As shown, the light-emitting area of ​​a subpixel is only a part of the subpixel region, and it is smaller than the region contained in the subpixel.

[0096] Specifically, such as Figure 13 As shown, in each 3D display pixel 22, sub-pixels of the same primary color are arranged in a single row along the 3D display line direction. The black base region achieves the staggered arrangement of the light-emitting area by defining openings at different vertical positions within adjacent sub-pixels. The light-emitting area of ​​the first red sub-pixel is located at the upper part of its sub-pixel area, and the light-emitting area of ​​the adjacent second red sub-pixel is located at the lower part of its sub-pixel area, alternating in this manner to form a visually staggered arrangement. In some embodiments, the above-mentioned staggered arrangement technique can be extended to the 3D display line level, meaning that sub-pixels of the same primary color within the entire 3D display line can all adopt this staggered arrangement method.

[0097] The light-emitting areas of the staggered, same-primary-color sub-pixels are seamlessly connected in the 3D display row direction to form a continuous projection coverage area. For example... Figure 11 As shown, the projection area P1 of the red sub-pixel light-emitting area 241 is precisely connected to the adjacent projection area P2.

[0098] This embodiment also employs a tangent intersection length uniformity control scheme. More specifically, the naked-eye 3D display device 2 is configured such that, when multiple tangents perpendicular to the direction of the 3D display row are respectively set at different positions along a 3D display row 21, the relative difference between the maximum and minimum values ​​of the total intersection length generated by each tangent intersecting with the light-emitting area of ​​the same color sub-pixel of the 3D display row is less than or equal to 50%, preferably less than or equal to 30%, more preferably less than or equal to 20%, more preferably less than or equal to 15%, and more preferably less than or equal to 10%.

[0099] like Figure 11 and Figure 12As shown, all sub-pixels of a certain color are extracted from a 3D display row 21. For example, two rows of R sub-pixels within a 3D display row are extracted. Between the centers of the R sub-pixels at the left and right ends, tangents Y1, Y2, and Y3, perpendicular to the direction of the 3D display row, are set at three positions as shown in the figure. These tangents form the sum of the widths of the three sub-pixel cuts, i.e., D1 = d1 + d1', D2 = d2, and D3 = d3. If the sum of the maximum cut widths is Di, and the sum of the minimum cut widths is Dj (where i,j ∈ {1,2,3}), i.e., Di = Max{D1,D2,D3} and Dj = Min{D1,D2,D3}, then (Di - Dj) / Dj ≤ 0.15. In the illustrated embodiment, (Di - Dj) / Dj ≈ 0. It should be noted that, due to the staggered arrangement, some tangents may coincide with the edge of the light-emitting area of ​​the sub-pixel. In this case, the intersection length (cut length) of the overlapping part is calculated as 1 / 2 of the length of the overlapping part of the vertical tangent and the edge of the light-emitting area of ​​the sub-pixel.

[0100] like Figure 10 As shown, the grating is a one-dimensional vertical grating, preferably selected from a slit grating. Preferably, the slit grating 28 is integrated into the display screen 20. Preferably, the display screen includes a backlight layer and a color filter layer, and the slit grating 28 is disposed between the backlight layer 27 and the color filter layer 26 of the display screen. The slit grating 28 includes light-shielding strips 281 perpendicular to the 3D display row direction, and defines a grating light-transmitting area 282 between adjacent light-shielding strips 281. Similarly, after a point light source passes through the slit grating 28, the expansion direction of the light beam emitted from each level of the light-transmitting area 282 is parallel to the direction of the light-shielding strips 281, thereby perpendicular to the X-axis direction (i.e., the 3D display row direction), satisfying the definition requirements of a one-dimensional vertical grating. In some embodiments, the one-dimensional vertical grating is a static grating. In some embodiments, the one-dimensional vertical grating is a dynamic grating, which can realize the switching function of 2D / 3D display mode.

[0101] Those skilled in the art should understand that the foregoing Figures 1 to 8 The technical features of the illustrated embodiments can be combined in a non-contradictory manner with Figures 9 to 13 The embodiments shown are used to obtain new embodiments, which fall within the scope of this application.

[0102] For example, the prism grating in the first embodiment can be replaced with the slit grating 28 in the second embodiment, or with a one-dimensional diffraction grating, while maintaining the uniformity control of the cut width and the projection overlap configuration. Conversely, the slit grating 28 in the second embodiment can also be replaced with the prism grating or a one-dimensional diffraction grating in the first embodiment; the grating position can also be flexibly configured. The slit grating in the second embodiment can be placed on the outside of the display screen like the prism grating in the first embodiment, and the prism grating in the first embodiment can also be integrated into the display screen; the static grating in the first embodiment can be replaced with a dynamic grating, and the grating in the second embodiment can also switch between static and dynamic configurations. The dynamic grating configuration enables advanced functions such as 2D / 3D mode switching, adaptive adjustment of viewing distance, and multi-user tracking.

[0103] Regarding the combination of subpixel arrangement methods, the slanted arrangement of the first embodiment can be combined with the multi-row arrangement configuration of the second embodiment to form a slanted multi-row arrangement.

[0104] exist Figures 1 to 8 In the illustrated embodiment, sub-pixels corresponding to the same primary color can be arranged in rows, and there are only sub-pixels of one primary color in the same sub-pixel row. In an alternative embodiment, sub-pixels corresponding to the same primary color can be arranged in multiple staggered rows, and at least one sub-pixel of another primary color can be set in the same sub-pixel row.

[0105] refer to Figure 14 This illustrates another alternative embodiment in which the 3D pixel 32 includes light-emitting areas comprising multiple sub-pixels, the sub-pixels (and their light-emitting areas) of the 3D pixel 32 being similar Figures 1 to 8 The arrangement is tilted as shown in the embodiment, but in Figure 14 In the illustrated embodiment, sub-pixels of the same primary color are arranged in three staggered rows, and each row of sub-pixels contains sub-pixels of the other two primary colors. In this embodiment, the sub-pixels (and their light-emitting areas) of the 3D pixel 32 also satisfy the uniformity control of the tangent intersection length. That is, when multiple tangents perpendicular to the direction of the 3D display row are set at different positions along a 3D display row, the relative difference between the maximum and minimum values ​​of the total intersection length generated by each tangent intersecting with the light-emitting area of ​​the same color sub-pixel in the 3D display row can be controlled to be less than or equal to 50%.

[0106] In one variant embodiment, the sub-pixels (and their light-emitting areas) of 3D pixel 32 can have similar characteristics to... Figure 14 The arrangement maintains the three-row staggered RGB structure, but the tilt direction is reversed, and further, it is a mirror arrangement with the vertical direction as the axis of symmetry. For example, Figure 14The sub-pixels (and their light-emitting areas) shown are tilted to the right relative to the vertical direction. In this variant embodiment, the sub-pixels (and their light-emitting areas) can be tilted to the left relative to the vertical direction. In this variant embodiment, the sub-pixels (and their light-emitting areas) of 3D pixel 42 also satisfy the uniformity control of the tangent intersection length, which will not be elaborated here.

[0107] refer to Figure 15 In another alternative embodiment shown, the 3D display pixel 42 includes light-emitting areas of a plurality of sub-pixels, the sub-pixels (and their light-emitting areas) of the 3D display pixel 42 being similar to Figures 9 to 13 The illustrated embodiment uses a horizontal arrangement, but in Figure 15 In the embodiment shown, sub-pixels corresponding to the same primary color are arranged in six staggered rows, and sub-pixels of the other two primary colors are set in each sub-pixel row. In this embodiment, the sub-pixels (and their light-emitting areas) of 3D pixel 42 also satisfy the uniformity control of the tangent intersection length, which will not be elaborated here.

[0108] refer to Figure 16 In this embodiment, the light-emitting area of ​​the parallelogram sub-pixel (and its light-emitting area) of 3D pixel 52 is also applicable. Figures 1 to 8 The features and technical effects described in the embodiments can achieve the same function as the light-emitting area of ​​the rectangular sub-pixel, including technical features such as tilted arrangement, projection overlap and uniform distribution of total intersection length, which will not be repeated here.

[0109] In one variant embodiment, the sub-pixels (and their light-emitting areas) of 3D pixel 52 can have similar characteristics to... Figure 16 The arrangement maintains the structure of a tilted, single-row arrangement where each sub-pixel row contains only sub-pixels of a single primary color, but the tilt direction is reversed, and further, it is arranged in a mirror image with the vertical direction as the axis of symmetry. For example, Figure 16 The sub-pixel (and its light-emitting area) shown is tilted to the right relative to the vertical direction; in this variant embodiment, the sub-pixel (and its light-emitting area) can be tilted to the left relative to the vertical direction. Similarly, in this variant embodiment... Figure 16 The uniformity control of tangent intersection length and the control of projection overlap range are not elaborated here.

[0110] refer to Figure 17 This illustrates another alternative embodiment in which the 3D pixel 62 includes a light-emitting area comprising multiple sub-pixels, the shape of which is similar to... Figure 16 The sub-pixels of this 3D pixel 62 have the same shape for their light-emitting areas; they are all parallelograms. The sub-pixels (and their light-emitting areas) of this 3D pixel 62 can be similarly... Figures 1 to 8 The arrangement is tilted as shown in the embodiment, but in Figure 17In the illustrated embodiment, sub-pixels of the same primary color are arranged in three staggered rows, and sub-pixels of the three primary colors are set in the same sub-pixel row. In this variant embodiment, the uniformity control of the tangent intersection length is also satisfied, which will not be elaborated here.

[0111] In one variant embodiment, the sub-pixels (and their light-emitting areas) of the 3D pixel can have similar characteristics to... Figure 17 The arrangement maintains the structure of three rows of staggered RGB subpixels, but the tilt direction is reversed, and further, it is a mirror arrangement with the vertical direction as the axis of symmetry. For example, Figure 17 The sub-pixel (and its light-emitting area) shown is tilted to the right relative to the vertical direction. In this variant embodiment, the sub-pixel (and its light-emitting area) can be tilted to the left relative to the vertical direction. In this variant embodiment, the uniformity control of the tangent intersection length is also satisfied, which will not be elaborated here.

[0112] refer to Figure 18 This illustrates another alternative embodiment in which the subpixels (and their light-emitting areas) of the 3D pixel 72 are not similar. Figures 1 to 8 The arrangement is tilted as shown in the embodiment, but in Figure 18 In the illustrated embodiment, subpixels corresponding to the same primary color can be arranged in a single row. In this embodiment, the 3D pixel 72 includes multiple light-emitting areas of subpixels. The light-emitting area of ​​each subpixel is a closed region in the shape of an arrow, with the tip of the arrow being flat. Specifically, the light-emitting area is roughly open on the left and points to the right, consisting of two oblique geometric shapes. The left ends of these two oblique geometric shapes are perpendicular to the X-axis, and their right ends meet to form an end, which is also perpendicular to the X-axis. In this embodiment, the arrangement of the arrow-shaped light-emitting areas also satisfies the uniformity control of the tangent intersection length and the projection range overlap control, which will not be elaborated further here.

[0113] In one variant embodiment, the sub-pixels (and their light-emitting areas) of the 3D pixel can have similar characteristics to... Figure 18 The arrangement maintains the structure of single-row arrangement of subpixels of the same color. Furthermore, a mirror arrangement with the vertical axis of symmetry is used... Figure 18 Compared to the arrow shape shown with an opening on the left and pointing to the right, in this variant embodiment, the light-emitting area of ​​the sub-pixel has an opening on the right and points to the left. This variant embodiment also satisfies the uniformity control of tangent intersection length and projection overlap characteristics, which will not be elaborated further here.

[0114] refer to Figure 19 This illustrates another alternative embodiment, where the shape of the sub-pixel light-emitting area of ​​the 3D pixel 82 is similar to... Figure 18 Similarly, the sub-pixels (and their light-emitting areas) of this 3D pixel 82 are not similar. Figures 1 to 8 As shown in the embodiment, they are arranged at an angle.Figure 19 In the illustrated embodiment, the sub-pixels corresponding to the same primary color are also arranged in three staggered rows, which also satisfies the uniformity control of the intersection length of the tangents, and will not be elaborated here.

[0115] In one variant embodiment, the sub-pixels (and their light-emitting areas) of the 3D pixel can have similar characteristics to... Figure 19 The arrangement maintains the structure of three rows of staggered RGB subpixels, and further, a mirror arrangement with the vertical axis of symmetry is used. Figure 19 Compared to the arrow shape shown with an opening on the left and pointing to the right, in this variant embodiment, the light-emitting area of ​​the sub-pixel has an opening on the right and points to the left. In this variant embodiment, the uniformity control of the tangent intersection length is also satisfied, which will not be elaborated further here.

[0116] refer to Figure 20 This illustrates another alternative embodiment in which the subpixels (and their light-emitting areas) of the 3D pixel 92 are not similar. Figures 1 to 8 The arrangement is tilted as shown in the embodiment, but in Figure 18 In the illustrated embodiment, sub-pixels corresponding to the same primary color can be arranged in a single row. In this embodiment, the 3D pixel 72 includes light-emitting areas of multiple sub-pixels. The light-emitting area of ​​each sub-pixel is a closed region in the shape of an arrow, with the tip of the arrow being pointed. The shape of the light-emitting area is roughly open on the left and points to the right. The upper and lower bottom edges of the geometric shape are parallel to the 3D display row direction, which also satisfies the uniformity control of the tangent intersection length and the control of the projection overlap range, which will not be elaborated here.

[0117] In one variant embodiment, the sub-pixels (and their light-emitting areas) of the 3D pixel can have similar characteristics to... Figure 20 The arrangement maintains the structure of single-row arrangement of subpixels of the same color. Furthermore, a mirror arrangement with the vertical axis of symmetry is used... Figure 18 Compared to the arrow shape shown with an opening on the left and pointing to the right, in this variant embodiment, the light-emitting area of ​​the sub-pixel has an opening on the right and points to the left. This variant embodiment also satisfies the uniformity control of tangent intersection length and projection overlap characteristics, which will not be elaborated further here.

[0118] refer to Figure 21 This illustrates another alternative embodiment, where the shape of the sub-pixel light-emitting area of ​​the 3D pixel 102 is similar to... Figure 20 Similarly, the sub-pixels (and their light-emitting areas) of this 3D pixel 102 are not similar. Figures 1 to 8 As shown in the embodiment, they are arranged at an angle. Figure 21 In the illustrated embodiment, the sub-pixels corresponding to the same primary color are also arranged in three staggered rows. In this variant embodiment, the uniformity control of the tangent intersection length is also satisfied, which will not be elaborated here.

[0119] In one variant embodiment, the sub-pixels (and their light-emitting areas) of the 3D pixel can have similar characteristics to... Figure 19 The arrangement maintains the structure of three rows of staggered RGB subpixels, and further, a mirror arrangement with the vertical axis of symmetry is used. Figure 19 Compared to the arrow shape shown with an opening on the left and pointing to the right, in this variant embodiment, the light-emitting area of ​​the sub-pixel has an opening on the right and points to the left. In this variant embodiment, the uniformity control of the tangent intersection length is also satisfied, which will not be elaborated further here.

[0120] refer to Figure 22 This illustrates another alternative embodiment where the light-emitting area of ​​the sub-pixels of the 3D pixel 112 is hexagonal, having two parallel long horizontal sides (top and bottom) and four shorter diagonal sides (upper left, lower left, upper right, and lower right diagonal sides). These two long horizontal sides (top and bottom) are parallel to the 3D display row direction. All sub-pixels have closed light-emitting areas, forming a regular geometric shape. The sub-pixels (and their light-emitting areas) of the 3D display pixel 112 can be similarly... Figures 9 to 13 The embodiment shown uses a horizontal arrangement, and sub-pixels corresponding to the same primary color can be arranged similarly. Figures 9 to 13 The illustrated embodiment uses a row-by-row arrangement, which also satisfies the uniformity control of tangent intersection lengths and similar requirements. Figures 9 to 13 The control of the projection overlap range shown will not be elaborated upon here.

[0121] In this application embodiment, the naked-eye 3D display device can be any suitable electronic device or integrated into any suitable electronic device, such as a mobile terminal or computer, including but not limited to mobile phones, vehicle terminals, smart TVs, etc. Taking a mobile phone as an example, the electronic device also includes a touch screen, external speaker, gyroscope, camera, 4G / 5G antenna and other device modules.

[0122] The methods, programs, systems, apparatuses, etc., of the embodiments of this application can be executed or implemented in one or more networked computers, or practiced in a distributed computing environment. In the embodiments of this specification, in these distributed computing environments, tasks can be performed by remote processing devices connected via a communication network.

[0123] Those skilled in the art will understand that the embodiments described in this specification can be provided as methods, systems, or computer program products. Therefore, those skilled in the art will realize that the functional modules / units or controllers and related method steps described in the above embodiments can be implemented in software, hardware, or a combination of both.

[0124] Unless explicitly stated otherwise, the actions or steps of the methods and procedures described in the embodiments of this application do not necessarily have to be performed in a specific order and can still achieve the desired results. In some implementations, multitasking and parallel processing are also possible or may be advantageous.

[0125] In this document, the geometric relationships such as "parallel," "perpendicular," and "horizontal" described in the document are permissible in actual implementation due to deviations caused by factors such as machining accuracy and assembly errors. Directions deviating from the ideal parallel or perpendicular direction within ±0.2° should be considered to satisfy the parallel or perpendicular relationships described in this application.

[0126] In this paper, various numerical parameters related to the numerical range, such as projection overlap range, relative difference percentage, angle parameters, etc., are allowed to have an engineering tolerance of ±5% in actual implementation, unless otherwise explicitly stated.

[0127] This document describes several embodiments of the present application; however, for the sake of brevity, the descriptions of the embodiments are not exhaustive, and identical or similar features or parts between the embodiments may be omitted. In this document, "one embodiment," "some embodiments," "example," "specific example," or "some examples" refers to at least one embodiment or example applicable to the present application, but not all embodiments. The above terms do not necessarily refer to the same embodiment or example. Without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of the different embodiments or examples.

[0128] The exemplary systems and methods of this application have been specifically shown and described with reference to the above embodiments, which are merely examples of the best mode for implementing the systems and methods. Those skilled in the art will understand that various changes can be made to the embodiments of the systems and methods described herein without departing from the spirit and scope of this application as defined in the appended claims when implementing the systems and / or methods.

Claims

1. A glasses-free 3D display device, characterized in that, include: The display screen and the grating combined with the display screen, The display screen includes multiple 3D display rows, each 3D display row includes multiple 3D display pixels arranged sequentially along the direction of the 3D display row, each 3D display pixel includes multiple sub-pixels, each sub-pixel has a light-emitting area and a black base area, and the light-emitting area of ​​the sub-pixel is the opening area defined by the black base area; In this configuration, the same primary color sub-pixels of each 3D display pixel are arranged in a single row along the 3D display row direction, and the light-emitting areas of the same primary color sub-pixels of each 3D display pixel are staggered into multiple rows, so that the light-emitting areas of adjacent primary color sub-pixels are staggered in the 3D display row direction. The projection portions of the staggered light-emitting areas of the same primary color sub-pixels in the 3D display row direction overlap to form a continuous projection coverage area. In each primary color sub-pixel of the 3D display pixel, the black base area achieves the staggered arrangement of the multiple rows of light-emitting areas by defining opening areas at different vertical positions within adjacent sub-pixels. The naked-eye 3D display device is configured such that, when multiple tangents perpendicular to the direction of the 3D display row are respectively set at different positions along a 3D display row, the relative difference between the maximum and minimum values ​​of the total intersection length generated by the intersection of each tangent with the light-emitting area of ​​the same color sub-pixel of the 3D display row is less than or equal to 10%. The light-emitting area is hexagonal in shape, having two parallel horizontal long sides and four shorter inclined sides; The grating is a one-dimensional vertical grating, and the main expansion direction of the beam of the one-dimensional vertical grating is perpendicular to the 3D display row direction.

2. The naked-eye 3D display device according to claim 1, characterized in that, Each of the 3D display pixels includes multiple groups of sub-pixels, each group of sub-pixels corresponding to the full primary color, wherein the number of groups of full primary color sub-pixels corresponds to the maximum number of views that the naked-eye 3D display device can display.

3. The glasses-free 3D display device according to claim 1 or 2, characterized in that, The relative difference between the maximum and minimum total intersection lengths generated by each tangent intersecting with the light-emitting area of ​​the same color subpixel in the 3D display row is approximately 0%.

4. A display screen for a glasses-free 3D display device, characterized in that, The display screen is the display screen of the naked-eye 3D display device according to any one of claims 1 to 3.

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