Display module and display device

Abstract

The application discloses a display module and a display device. The display module comprises a curved screen and an optical module. The curved screen comprises a display substrate and a plurality of display units. The display substrate has an outlight surface, and the plurality of display units are arranged at intervals on the outlight surface. The optical module is arranged at intervals on one side of the outlight surface of the curved screen. The optical module comprises a lens, and the curvature of the lens is consistent with the curvature of the curved screen. The display module comprises a projection plane. The projections of the plurality of display units on the projection plane are distributed in an array. The distance between the projections of any two adjacent display units on the projection plane is equal. The curved screen comprises a plurality of display areas. Each display area comprises a plurality of display units. The distance between adjacent display units gradually increases in different display areas along the direction from the center to the edge of the curved screen. The above arrangement effectively solves the problems of blurred display picture edges and uneven display of VR devices in the prior art.

Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to a display module and display device. Background Technology

[0002] VR (Virtual Reality) devices are near-eye display devices. To achieve the same display effect, near-eye displays have higher requirements for screen resolution compared to TVs, monitors, and other displays. The images from VR devices are mostly magnified by optical modules on a flat screen before being received by the human eye. These optical modules are mostly composed of lenses and optical films with a certain curvature.

[0003] However, because the distance between the flat panel display and the optical module with a certain curvature is not exactly the same, the image is prone to distortion at the edges after passing through the optical module, resulting in blurred edges and uneven display between the edges and the center of the image. Moreover, in order to improve the field of view, the distance between the flat panel display and the optical module must be shortened as much as possible. However, shortening the distance will reduce the exit pupil diameter while increasing the field of view, resulting in unclear image display. Summary of the Invention

[0004] This application mainly provides a display module and display device to solve the problems of blurred edges and uneven display of VR devices in the prior art.

[0005] To solve the above-mentioned technical problems, one technical solution adopted in this application is: to provide a display module, comprising:

[0006] A curved screen includes a display substrate and multiple display units, wherein the display substrate has a light-emitting surface, and the multiple display units are spaced apart on the light-emitting surface;

[0007] An optical module is spaced apart on one side of the light-emitting surface of the curved screen; the optical module includes a lens, the curvature of which is consistent with the curvature of the curved screen;

[0008] The display module includes a projection plane, and the projections of multiple display units on the projection plane are arranged in an array, with the distance between the projections of any two adjacent display units on the projection plane being equal; the curved screen includes multiple display areas, and each display area includes multiple display units; in multiple different display areas along the center of the curved screen towards the edge, the distance between two adjacent display units gradually increases.

[0009] In one embodiment, the spacing between any two adjacent display units within the same display area is equal;

[0010] Alternatively, along the center of the curved screen towards the edge, the spacing between two adjacent display units in the same display area gradually increases.

[0011] In one embodiment, the spacing between any two adjacent display units within the same display area is equal, and the difference between the spacing between any two adjacent display units within each display area and the spacing between any two adjacent display units within the adjacent display area is a first fixed value.

[0012] In one embodiment, the curved screen sequentially includes a first display area, a second display area, ..., an Mth display area, from the center of the display substrate toward the edge; where M is a positive integer greater than or equal to 2.

[0013] The distance between the projections of two adjacent display units on the projection plane is a first distance. The distance between two adjacent display units in the first display area is equal to the first distance. The distance between two adjacent display units in the second display area is the sum of the first distance and the first fixed value. ... The distance between two adjacent display units in the Mth display area is the sum of the first distance and (M-1) times the first fixed value.

[0014] In one embodiment, the distance between two adjacent display units in the same display area gradually increases from the center of the curved screen towards the edge; the distance between the projections of any two adjacent display units on the projection plane is a first distance, and the accuracy of the distance between two adjacent display units is a first fixed value;

[0015] From the center of the display substrate towards the edge, the curved screen sequentially includes a first display area, a second display area, ..., an Mth display area; where M is a positive integer greater than or equal to 2; from the center of the curved screen towards the edge, the distance between any two adjacent display units in the first display area is less than the sum of the first distance and the first fixed value; the distance between any two adjacent display units in the second display area is greater than or equal to the sum of the first distance and the first fixed value and less than the sum of the first distance and twice the first fixed value; ... the distance between any two adjacent display units in the Mth display area is greater than or equal to the sum of the first distance and (M-1) times the first fixed value and less than the sum of the first distance and M times the first fixed value.

[0016] In one embodiment, the number of display areas is negatively correlated with the size of the first set value.

[0017] In one embodiment, the curved screen is spherical, and includes a circular display area and at least one annular display area, wherein the annular display area surrounds the circular display area and is concentrically arranged with the circular display area.

[0018] In one embodiment, the curved screen is a curved structure formed by bending opposite first and second sides of a rectangular plane along a first direction, the first direction being perpendicular to the rectangular plane; the curved screen includes a plurality of display areas, the plurality of display areas being symmetrically arranged about a first axis of symmetry of the rectangular plane, the first axis of symmetry being perpendicular to the first side;

[0019] In a direction parallel to the first axis of symmetry, the spacing between any two adjacent display units in multiple different display areas is equal; along the extension direction of the first side, from the center of the curved screen to the edge, the spacing between two adjacent display units in multiple different display areas gradually increases.

[0020] In one embodiment, the curved screen includes a rectangular display area located at the center of the curved screen and a plurality of display areas located on both sides of the rectangular display area; each of the remaining display areas, except for the rectangular display area, includes two sub-display areas, the sub-display areas being rectangular, and the two sub-display areas of the same display area being located on both sides of the rectangular display area and arranged symmetrically about the first axis of symmetry.

[0021] To solve the above-mentioned technical problems, another technical solution adopted in this application is to provide a display device, including a housing and any of the display modules described above.

[0022] The beneficial effects of this application are as follows: Unlike existing technologies, this application discloses a display module and display device. The display module includes a curved screen and an optical module. The curved screen includes a display substrate and multiple display units. The display substrate has a light-emitting surface, and the multiple display units are spaced apart on the light-emitting surface. The optical module is spaced apart on one side of the light-emitting surface of the curved screen and includes lenses with the same curvature as the curved screen. The display module includes a projection plane, and the projections of the multiple display units on the projection plane are arranged in an array. The distance between the projections of any two adjacent display units on the projection plane is equal. The curved screen includes multiple display areas, each including multiple display units. Along the center of the curved screen towards the edge, the distance between two adjacent display units gradually increases within these multiple different display areas. Through the above arrangement, the problems of blurred edges and uneven display in existing VR devices are effectively solved. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0024] Figure 1 This is a schematic diagram of the structure of an embodiment of the display module provided in this application;

[0025] Figure 2 yes Figure 1 A schematic diagram of the structure of the first embodiment of the curved screen of the provided display module;

[0026] Figure 3 yes Figure 2 A schematic diagram of the structure of one embodiment of the display area of ​​the provided curved screen;

[0027] Figure 4 yes Figure 2 A schematic diagram of another embodiment of the display area of ​​the provided curved screen;

[0028] Figure 5 yes Figure 2 A schematic diagram of another embodiment of the display area of ​​the provided curved screen;

[0029] Figure 6 yes Figure 1 A schematic diagram of the structure of the curved screen of the provided display module in a second embodiment;

[0030] Figure 7 yes Figure 6 A schematic diagram of the display area of ​​the provided curved screen;

[0031] Figure 8 yes Figure 6 A cross-sectional schematic diagram of the display area of ​​the provided curved screen;

[0032] Figure 9 This is a schematic diagram of an embodiment of the display device provided in this application.

[0033] Icon labels:

[0034] Display device 300; housing 200; display module 100; projection plane S; curved screen 1; display substrate 11; light-emitting surface 110; display unit 12; optical module 2; lens 21; first display area P1; second display area P2; sub-second display area P21; third display area P3; sub-third display area P31; (M-1)th display area P(M-1); Mth display area PM; first distance A; first fixed value K; first side L1; second side L2; first axis of symmetry D1. Detailed Implementation

[0035] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0036] The terms "first," "second," and "third" used in the embodiments of this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0037] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0038] See Figures 1 to 5 , Figure 1 This is a schematic diagram of the structure of an embodiment of the display module provided in this application. Figure 2 yes Figure 1 A schematic diagram of the structure of the first embodiment of the curved screen of the provided display module. Figure 3 yes Figure 2 A schematic diagram of the structure of one embodiment of the display area of ​​the provided curved screen. Figure 4 yes Figure 2 A schematic diagram of another embodiment of the display area of ​​the provided curved screen. Figure 5 yes Figure 2 A schematic diagram of another embodiment of the display area of ​​the provided curved screen.

[0039] See Figure 1This application provides a display module 100 that can be applied to VR near-eye displays. The display module 100 includes a curved screen 1 and an optical module 2. The curved screen 1 includes a display substrate 11 and multiple display units 12. The display substrate 11 has a curved structure and a light-emitting surface 110. The multiple display units 12 are spaced apart on the light-emitting surface 110 of the display substrate 11. The optical module 2 is disposed on one side of the light-emitting surface 110 of the display substrate 11 and spaced apart from the display substrate 11. The optical module 2 includes a lens 21, specifically a convex lens, the curvature of which is consistent with the curvature of the curved screen 1. The optical module 2 may also include other optical films (not shown). The display module 100 includes a projection plane S, and the projections of the multiple display units 12 onto the projection plane S are equally spaced. The curved screen 1 includes multiple display areas, each of which includes multiple display units 12. In multiple different display areas along the center of the curved screen 1 towards the edge, the spacing between two adjacent display units 12 gradually increases.

[0040] It is understood that in this application, the display substrate 11 is configured as a curved structure, and the curvature of the lens 21 of the optical module 2 is consistent with the curvature of the curved screen 1. This ensures that the distance between the lens 21 of the optical module 2 and the curved screen 1 is equal at all positions, preventing distortion of the displayed image at the edges after passing through the optical module 2. This effectively solves the problems of blurred edges and uneven display between the edges and center of the displayed image in the display module 100. Simultaneously, the equal spacing of the projections of the multiple display units 12 of the curved screen 1 onto the projection plane S makes the image display on the curved screen 1 more uniform. Furthermore, by dividing the curved screen 1 into multiple different display areas, the spacing between adjacent display units 12 gradually increases along the direction from the center to the edge of the curved screen 1, further improving the uniformity and quality of the displayed image.

[0041] The structure of the curved screen 1 can ensure that the field of view and exit pupil diameter are optimal within a limited space. While ensuring the quality of the displayed image, the field of view can be improved by adjusting the distance between the curved screen 1 and the optical module 2, enhancing the immersive experience of near-eye display. This results in better image quality after being magnified by the optical module 2, allowing the displayed image to be transmitted to the human eye completely and clearly. This effectively solves the problem of reduced exit pupil diameter and unclear image display caused by shortening the distance between the flat screen and the optical module 2 to improve the field of view when the display screen is a flat screen.

[0042] In this embodiment, each display area includes multiple display units 12. Within the same display area, the spacing between any two adjacent display units 12 can be equal. Alternatively, along the direction from the center to the edge of the curved screen 1, the spacing between any two adjacent display units 12 within the same display area can gradually increase to ensure that the projection spacing of any two adjacent display units 12 on the projection plane S is equal, thereby ensuring the uniformity of the displayed image.

[0043] Specifically, the curved screen 1 includes M display areas. From the center of the display substrate 11 towards the edge, the curved screen 1 sequentially includes a first display area P1, a second display area P2, ..., an (M-1)th display area P(M-1), and an Mth display area PM, where M is a positive integer greater than or equal to 2. That is, the curved screen 1 includes at least two display areas, and the first display area P1 is located at the center of the curved screen 1. The distance between the projections of any two adjacent display units 12 onto the projection plane S is a first distance A.

[0044] In one embodiment, the spacing between any two adjacent display units 12 within the same display area is equal, and the difference between the spacing between any two adjacent display units 12 within each display area and the spacing between any two adjacent display units 12 within its adjacent display area is a first fixed value K. In this embodiment, the spacing between two adjacent display units 12 within the first display area P1 is equal to the first distance A, the spacing between two adjacent display units 12 within the second display area P2 is the sum of the first distance A and the first fixed value K, ..., the spacing between two adjacent display units 12 within the Mth display area PM is the sum of the first distance A and (M-1) times the first fixed value K. That is, along the center of the curved screen 1 towards the edge, the spacing between the display units 12 within two adjacent display areas increases, and the spacing between the display units 12 within the display area closest to the edge of the curved screen 1 is the largest.

[0045] It is understandable that the curvature of the curved screen 1 is consistent at all locations. Relative to the projection plane S, the curvature of the curved screen 1 increases towards the edge. Only when the spacing between the display units 12 in different display areas gradually increases from the center to the edge can the spacing of the projections of each display unit 12 in different display areas on the projection plane S be equal, thus ensuring display uniformity. At the same time, within the same display area, the curvature of the display substrate 11 is not significantly different. Setting the spacing between any two adjacent display units 12 in the same display area to be equal can also make the spacing of the projections of two adjacent display units 12 on the projection plane S approximately equal. This ensures display uniformity while also simplifying the structure and reducing manufacturing difficulty and production costs.

[0046] In another embodiment, from the center of the curved screen 1 towards the edge, the spacing between two adjacent display units 12 within the same display area gradually increases, and the precision of the spacing between two adjacent display units 12 is a first fixed value K. In this embodiment, from the center of the curved screen 1 towards the edge, the spacing between any two adjacent display units 12 within the first display area P1 is less than the sum of a first distance A and a first fixed value K. Since the spacing between two adjacent display units 12 within the same display area gradually increases, that is, the distance between two display units 12 located at the outermost edge of the first display area P1 is less than the sum of a first distance A and a first fixed value K. The spacing between any two adjacent display units 12 within the second display area P2 is greater than or equal to the sum of a first distance A and a first fixed value K and less than the sum of a first distance A and twice the first fixed value K. Similarly, the distance between any two adjacent display units 12 in the Mth display area PM is greater than or equal to the sum of the first distance A and (M-1) times the first fixed value K and less than the sum of the first distance A and M times the first fixed value K. That is, the distance between the two display units 12 located at the outermost edge of the Mth display area PM is greater than or equal to the sum of the first distance A and (M-1) times the first fixed value K and less than the sum of the first distance A and M times the first fixed value K.

[0047] It is understandable that, as the curvature of the display substrate 11 gradually increases from the center to the edge relative to the projection plane S, the spacing between two adjacent display units 12 in the same display area is set to gradually increase from the center to the edge, and the spacing between display units 12 in multiple different display areas also gradually increases. That is, along the direction from the center to the edge of the curved screen 1, the spacing between adjacent display units 12 in the multiple display units 12 of the curved screen 1 gradually increases. This makes the projection distribution of multiple display units 12 on the projection plane S more uniform, and the spacing between adjacent projections equal, resulting in a more uniform image display, higher image display quality, and is more conducive to solving the problems of blurred edges and uneven display of the image. In this embodiment, along the direction from the center of the curved screen 1 to the edge, the distance between two adjacent display units 12 in the same display area gradually increases. However, since the distance values ​​of the display units 12 in the same display area are relatively small, the distance between multiple display units 12 in the same display area can also be regarded as approximately equal. The difference in the distance between the display units 12 in two adjacent display areas is approximately a first fixed value K.

[0048] In this embodiment, the number of display areas on the curved screen 1 is negatively correlated with the size of the first fixed value K. The smaller the first fixed value K, the more display areas there are; the larger the first fixed value K, the fewer display areas there are. Specifically, the number of display units 12 on the curved screen 1 is fixed, and the distance between the projections of any two adjacent display units 12 on the projection plane S is a first distance A, which is a fixed value. When the first fixed value K is smaller, the sum of the first distance A and the first fixed value K is also smaller, and the number of display units 12 included in each display area will also decrease accordingly. This results in a larger number of display areas on the curved screen 1, a more refined division of the display areas, and a corresponding improvement in the quality of the image display. In this embodiment, by adjusting the spacing between the multiple display units 12 of the curved screen 1, the uniformity and image quality of the displayed image are effectively improved.

[0049] See Figure 2 In this embodiment, the curved screen 1 of the display module 100 is spherical, with consistent curvature at all locations. The curved screen 1 includes multiple display areas. For details, see [link to documentation]. Figure 3 In one embodiment, the curved screen 1 includes a circular display area and at least one annular display area. The annular display area is arranged around the central display area and is concentric with the circular display area. In this embodiment, the circular display area is located at the center of the curved screen 1, that is, the first display area P1 is a circular display area. Multiple display units 12 within the circular display area are arranged in a circular pattern, and multiple display units 12 within the annular display area are arranged in a circular pattern. In this embodiment, the spacing between multiple display units 12 within the same display area is equal, and the difference in spacing between display units 12 in two adjacent display areas is a first fixed value K. For example, the difference in spacing between two adjacent display units 12 in the second display area P2 (the annular display area adjacent to the circular display area) and the spacing between two adjacent display units 12 in the circular display area is the first fixed value K. The first fixed value K can be any value; for example, the first fixed value K is 0.5, and the difference in spacing between display units 12 in two adjacent display areas is 0.5. In other embodiments, the spacing between the display units 12 in the same display area can also gradually increase from the center of the curved screen 1 to the edge, as long as the projection of the multiple display units 12 of the curved screen 1 on the projection plane S can be evenly distributed.

[0050] See Figure 4 In another embodiment, the shape of the display area of ​​the curved screen 1 may not be circular or annular, such as... Figure 4As shown, the spherical curved screen 1 can also have the central display area, i.e., the first display area P1, set as a polygon, such as a hexagon, octagon, or dodecagon. Specifically, the central display area, i.e., the first display area P1, is set as a polygon approaching a circle, and the other display areas besides the first display area P1 are set as polygonal rings approaching a ring shape. The other display areas surrounding the first display area P1 are arranged concentrically with the first display area P1, so that the projection distribution of the display units 12 of the curved screen 1 on the projection plane S is more uniform, and better uniform display is achieved. Specifically, the spacing between multiple display units 12 in the same display area is equal. From the center of the curved screen 1 towards the edge, the spacing between the display units 12 in multiple different display areas gradually increases, and the difference in the spacing between the display units 12 in two adjacent display areas is a first fixed value K. In other embodiments, the spacing between the display units 12 in the same display area can also gradually increase from the center of the curved screen 1 towards the edge.

[0051] See Figure 5 In another embodiment, the shape of the display area of ​​the curved screen 1 is not circular or annular, such as... Figure 5 As shown, the spherical curved screen 1 can set the central display area, i.e., the first display area P1, as a near-circular regular polygon. In this embodiment, the first display area P1 is a regular dodecagon. The other display areas besides the first display area P1 are set as near-annular regular polygonal rings. The other display areas surrounding the first display area P1 are arranged concentrically with the first display area P1, so that the projection distribution of the display units 12 of the curved screen 1 on the projection plane S is more uniform, and better uniform display is achieved. In this embodiment, the spacing between multiple display units 12 in the same display area is equal. The spacing between two adjacent display units 12 in the first display area P1 is equal to the first distance A. From the center of the curved screen 1 towards the edge, the spacing between the display units 12 in multiple different display areas gradually increases. The difference in the spacing between the display units 12 in two adjacent display areas is a first fixed value K. In other embodiments, the first display area P1 can also be set as other near-circular regular polygons, and the spacing between the display units 12 in the same display area can also gradually increase from the center of the curved screen 1 towards the edge.

[0052] See Figures 6 to 8 , Figure 6 yes Figure 1 A schematic diagram of the structure of the curved screen of the provided display module in the second embodiment. Figure 7 yes Figure 6 A schematic diagram of the display area of ​​the provided curved screen. Figure 8 yes Figure 6 A cross-sectional schematic diagram of the display area of ​​the provided curved screen.

[0053] See Figure 6 In another embodiment, the curved screen 1 is a curved structure formed by bending a rectangular plane. Specifically, the rectangular plane has a first side L1 and a second side L2 arranged opposite to each other. In this embodiment, the curved screen 1 is a curved structure formed by bending the first side L1 and the second side L2 of the rectangular plane along a first direction, wherein the first direction is a direction perpendicular to the rectangular plane. The first side L1 and the second side L2 are curved into an arc shape, and the curvature of the curved screen 1 is consistent at all positions. The rectangular plane has a first axis of symmetry D1, which is perpendicular to the first side L1 and the second side L2. The curved screen 1 includes multiple display areas, which are symmetrically arranged about the first axis of symmetry D1 of the rectangular plane.

[0054] Specifically, in this embodiment, since only the first side L1 and the second side L2 of the rectangular plane are bent in a direction perpendicular to the rectangular plane, while the sides of the rectangular plane connected to the first side L1 and the second side L2 are not bent, that is, the other two opposite sides of the rectangular plane are still straight lines parallel to the first axis of symmetry D1, the spacing between any two adjacent display units 12 in multiple different display areas of the curved screen 1 is equal in the direction parallel to the first axis of symmetry D1. That is, in all the display units 12 of the curved screen 1, the spacing between any two adjacent display units 12 is equal in the direction parallel to the first axis of symmetry D1. Specifically, the spacing between any two adjacent display units 12 in the direction parallel to the first axis of symmetry D1 is equal to the spacing between the projections of the two adjacent display units 12 on the projection plane S, that is, equal to the first distance A, so as to ensure the uniformity of the display.

[0055] In this embodiment, along the extension direction of the first side L1, the spacing between two adjacent display units 12 gradually increases from the center to the edge of the curved screen 1 in multiple different display areas. It can be understood that since the curvature of the curved screen 1 is consistent at all locations, and the curved screen 1 is a curved structure formed by bending the first side L1 and the second side L2 of a rectangular plane along a first direction, the curvature of the curved screen 1 is greater closer to the edge than the projection plane S. Setting the spacing between two adjacent display units 12 in multiple different display areas from the center to the edge of the curved screen 1 to gradually increase ensures a more uniform spacing between the display units 12 on the projection plane S, thereby ensuring display uniformity, improving the quality of the displayed image, and ensuring the consistency and uniformity of the displayed image at the center and edge of the curved screen 1.

[0056] Specifically, in this embodiment, the curved screen 1 is an axisymmetric figure symmetrically arranged about the first axis of symmetry D1, and the display area of ​​the curved screen 1 is rectangular. Specifically, the curved screen 1 includes a rectangular display area located at the center of the curved screen 1 and multiple display areas located on both sides of the rectangular display area. That is, the first display area P1 is a rectangular display area, and each of the remaining display areas, except for the first display area P1, includes two sub-display areas. The multiple sub-display areas are all rectangular in shape, and the two sub-display areas of the same display area have the same shape and size. Specifically, the two sub-display areas of the same display area are located on both sides of the rectangular display area and are symmetrically arranged about the first axis of symmetry D1.

[0057] like Figure 7 As shown, the curved screen 1 includes three display areas. From the center of the curved screen 1 towards the edge, the display areas are sequentially designated as a first display area P1, a second display area P2, and a third display area P3. The first display area P1 is a rectangular display area. The second display area P2 includes two sub-second display areas P21, which are located on opposite sides of the rectangular display area and are symmetrically arranged about the first axis of symmetry D1. The third display area P3 includes two sub-third display areas P31, which are also located on opposite sides of the rectangular display area and are symmetrically arranged about the first axis of symmetry D1. Specifically, the two sub-third display areas P31 are located on the side of the two sub-second display areas P21 furthest from the rectangular display area.

[0058] In this rectangular display area, the spacing between any two adjacent display units 12 is equal. In one specific embodiment, the spacing between any two adjacent display units 12 in the rectangular display area is equal to the spacing of the projection of the display unit 12 on the projection plane S, that is, equal to the first distance A. Along the extension direction of the first side L1, the spacing between any two adjacent display units 12 in the two sub-second display areas P21 is equal. The difference between the spacing between the two adjacent display units 12 in the sub-second display area P21 and the spacing between the two adjacent display units 12 in the rectangular display area is a first fixed value K. The spacing between any two adjacent display units 12 in the two sub-third display areas P31 is equal. The difference between the spacing between the two adjacent display units 12 in the sub-third display area P31 and the spacing between the two adjacent display units 12 in the sub-second display area P21 is also a first fixed value K. That is, the spacing between the two adjacent display units 12 in the sub-second display area P21 is greater than the spacing between the two adjacent display units 12 in the rectangular display area by a distance of the first fixed value K. The spacing between the two adjacent display units 12 in the sub-third display area P31 is greater than the spacing between the two adjacent display units 12 in the sub-second display area P21 by a distance of the first fixed value K. In the direction parallel to the first axis of symmetry D1, the spacing between any two adjacent display units 12 within the rectangular display area, the two sub-second display areas P21, and the two sub-third display areas P31 is equal, specifically equal to the spacing between the projections of the display units 12 onto the projection plane S. In other embodiments, the number of display areas of the curved screen 1 can also be set to other numbers, and the spacing between two adjacent display units 12 within the same display area can gradually increase along the extension direction along the first side L1.

[0059] See Figure 8 In this embodiment, the curved screen 1 is a curved structure formed by bending the first side L1 and the second side L2 of a rectangular flat display substrate 11 along a direction perpendicular to the rectangular plane. The curvature of the bent display substrate 11 is consistent with the curvature of the lens 21 of the optical module 2. For example... Figure 8As shown, before the display substrate 11 is bent, the spacing between adjacent display units 12 in multiple different display areas gradually increases along the direction from the center to the edge of the display substrate 11. That is, the spacing between display units 12 in the second sub-display area P21 is greater than the spacing between display units 12 in the rectangular display area, and the spacing between display units 12 in the third sub-display area P31 is greater than the spacing between display units 12 in the second sub-display area P21. After the rectangular display substrate 11 is bent, the degree of bending of the display substrate 11 is greater from the center to the edge relative to the projection plane S. Therefore, the spacing between the projections of the display units 12 in multiple display areas is equal on the projection plane S. Specifically, the spacing between the projections of two adjacent display units 12 on the projection plane S is a first distance A. It is understandable that by adjusting the spacing of multiple display units 12 in the curved screen 1, the spacing of the display units 12 in different display areas is set to different values. Specifically, the spacing of the display units 12 in different display areas gradually increases along the center of the display substrate 11 towards the edge, so that the spacing of the projection of the display units 12 on the projection plane S is equal, thereby ensuring the display uniformity of the display module 100, improving the quality of the display screen, and avoiding the problems of blurred edges of the display screen and uneven display between the edges and the center of the display screen.

[0060] Furthermore, in this embodiment, since the display screen is a curved screen 1, the field of view can be improved by adjusting the distance between the curved screen 1 and the optical module 2, ensuring that the field of view and exit pupil diameter are at their optimal parameters, so that the image can be transmitted to the human eye completely and clearly, ensuring that the image quality entering the human eye after being magnified by the optical module 2 is optimal. While ensuring image quality, the immersive feeling of near-eye display is enhanced, which can effectively solve the problem of reduced exit pupil diameter and unclear image display caused by shortening the distance between the display screen and the optical module 2 to improve the field of view when the display screen is a planar structure.

[0061] In other embodiments, the curved screen 1 may also have other structures, and the display area may also be set to other shapes corresponding to the structure of the curved screen 1, as long as the curvature of the curved screen 1 is consistent with the curvature of the lens 21 of the optical module 2, and the spacing between the projections of the multiple display units 12 of the curved screen 1 on the projection plane S is equal.

[0062] See Figure 9 , Figure 9 This is a schematic diagram of an embodiment of the display device provided in this application.

[0063] See Figure 9This application also provides a display device 300, which includes a housing 200 and a display module 100 as described in any of the above embodiments. Specifically, the display device 300 may also include other structural components such as a frame (not shown), a battery (not shown), and a processor (not shown) to achieve near-eye display. The display device 300 can be any structure, such as VR glasses or a VR head-mounted display device.

[0064] Unlike existing technologies, this application discloses a display module 100 and a display device 300. The display module 100 includes a curved screen 1 and an optical module 2. The curved screen 1 includes a display substrate 11 and multiple display units 12. The display substrate 11 has a light-emitting surface 110, and the multiple display units 12 are spaced apart on the light-emitting surface 110. The optical module 2 is spaced apart on one side of the light-emitting surface 110 of the curved screen 1, and the optical module 2 includes a lens 21 with a curvature consistent with that of the curved screen 1. The display module 100 includes a projection plane S, and the projections of the multiple display units 12 on the projection plane S are arranged in an array. The distance between the projections of any two adjacent display units 12 on the projection plane S is equal. The curved screen 1 includes multiple display areas, and each display area includes multiple display units 12. In multiple different display areas along the center to the edge of the curved screen 1, the distance between two adjacent display units 12 gradually increases. Through the above arrangement, the problems of blurred edges and uneven display of VR devices in the prior art are effectively solved.

[0065] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A display module, characterized in that, Applications in VR near-eye displays include: A curved screen includes a display substrate and multiple display units, wherein the display substrate has a light-emitting surface, and the multiple display units are spaced apart on the light-emitting surface; The curved screen is used for displaying images; An optical module is spaced apart on one side of the light-emitting surface of the curved screen; the optical module includes a lens, the curvature of which is consistent with the curvature of the curved screen; The optical module is used to magnify the display image of the curved screen, and the display image of the curved screen is directly transmitted through the lens; The display module includes a projection plane, and the projections of multiple display units on the projection plane are arranged in an array, with the distance between the projections of any two adjacent display units on the projection plane being equal; the curved screen includes multiple display areas, and each display area includes multiple display units; in multiple different display areas along the center of the curved screen towards the edge, the distance between two adjacent display units gradually increases.

2. The display module according to claim 1, characterized in that, The spacing between any two adjacent display units within the same display area is equal; Alternatively, along the center of the curved screen towards the edge, the spacing between two adjacent display units in the same display area gradually increases.

3. The display module according to claim 2, characterized in that, The spacing between any two adjacent display units within the same display area is equal, and the difference between the spacing between any two adjacent display units within each display area and the spacing between any two adjacent display units within its adjacent display area is a first fixed value.

4. The display module according to claim 3, characterized in that, From the center of the display substrate toward the edge, the curved screen sequentially includes a first display area, a second display area, ..., the Mth display area; where M is a positive integer greater than or equal to 2; The distance between the projections of two adjacent display units on the projection plane is a first distance. The distance between two adjacent display units in the first display area is equal to the first distance. The distance between two adjacent display units in the second display area is the sum of the first distance and the first fixed value. ... The distance between two adjacent display units in the Mth display area is the sum of the first distance and (M-1) times the first fixed value.

5. The display module according to claim 2, characterized in that, From the center of the curved screen towards the edge, the distance between two adjacent display units in the same display area gradually increases; the distance between the projections of any two adjacent display units on the projection plane is a first distance, and the accuracy of the distance between two adjacent display units is a first fixed value; From the center of the display substrate towards the edge, the curved screen sequentially includes a first display area, a second display area, ..., an Mth display area; where M is a positive integer greater than or equal to 2; from the center of the curved screen towards the edge, the distance between any two adjacent display units in the first display area is less than the sum of the first distance and the first fixed value, the distance between any two adjacent display units in the second display area is greater than or equal to the sum of the first distance and the first fixed value and less than the sum of the first distance and twice the first fixed value, ... the distance between any two adjacent display units in the Mth display area is greater than or equal to the sum of the first distance and (M-1) times the first fixed value and less than the sum of the first distance and M times the first fixed value.

6. The display module according to any one of claims 3-5, characterized in that, The number of display areas is negatively correlated with the magnitude of the first set value.

7. The display module according to claim 1, characterized in that, The curved screen is spherical, and includes a circular display area and at least one annular display area. The annular display area surrounds the circular display area and is concentrically arranged with the circular display area.

8. The display module according to claim 1, characterized in that, The curved screen is a curved structure formed by bending opposite first and second sides of a rectangular plane along a first direction, the first direction being perpendicular to the rectangular plane; the curved screen includes multiple display areas, the multiple display areas being symmetrically arranged about a first axis of symmetry of the rectangular plane, the first axis of symmetry being perpendicular to the first side; In a direction parallel to the first axis of symmetry, the spacing between any two adjacent display units in multiple different display areas is equal; along the extension direction of the first side, from the center of the curved screen to the edge, the spacing between two adjacent display units in multiple different display areas gradually increases.

9. The display module according to claim 8, characterized in that, The curved screen includes a rectangular display area located at the center of the curved screen and a plurality of display areas located on both sides of the rectangular display area; each of the remaining display areas, except for the rectangular display area, includes two sub-display areas, the sub-display areas being rectangular, and the two sub-display areas of the same display area being located on both sides of the rectangular display area and arranged symmetrically about the first axis of symmetry.

10. A display device, characterized in that, It includes a housing and a display module as described in any one of claims 1-9.

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