Display module and method for manufacturing display module

Abstract

The application relates to a display module and a preparation method thereof, which comprises a display substrate and an anti-glare structure layer. The display substrate comprises a plurality of sub-pixels for emitting light of different colors; the anti-glare structure layer is arranged on the light-emitting side of the display substrate, and the anti-glare structure layer is provided with a plurality of first protruding structures, the first protruding structures have side light-converging areas and top light-uniformizing areas, and the top light-uniformizing areas of the first protruding structures are provided with a plurality of concave point structures arranged at intervals. The side light-converging areas converge the light emitted by the corresponding sub-pixels in the direction close to the middle line of the first protruding structure, reduce the mixed light of the light of different colors emitted by different sub-pixels, and improve the flash point problem caused by the mixed light of the existing display module. The concave point structures diverge the light emitted by the corresponding sub-pixels in the direction away from the middle line of the concave point structures, the light rays emitted through the concave point structures intersect with the light rays emitted by the area adjacent to the concave point structures in the first protruding structure, and therefore the light-emitting uniformity of the display module is improved.

Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to display modules and methods for manufacturing display modules. Background Technology

[0002] In the field of display technology, as electronic devices become thinner and lighter and lower in cost, the traditional cover plate structure is gradually being abandoned, becoming an industry trend.

[0003] In the stacked structure of display modules, the outermost layer is usually a polarizer (POL). To improve the anti-glare performance of the module, the polarizer often adopts a structure with an anti-glare (AG) coating.

[0004] However, this layered design has shortcomings in product performance and has an adverse effect on the visual experience of the display. Summary of the Invention

[0005] Therefore, it is necessary to provide a display module and a method for manufacturing the display module that can improve product performance in response to the above-mentioned technical problems.

[0006] In a first aspect, this application provides a display module, comprising:

[0007] The display substrate includes multiple pixel units, and each pixel unit includes multiple sub-pixels for emitting light of different colors;

[0008] An anti-glare structural layer is disposed on the light-emitting side of the display substrate. The anti-glare structural layer has multiple first protrusions, each first protrusion having a side light-concentrating area and a top light-uniforming area. The top light-uniforming area of ​​each first protrusion has multiple spaced-apart concave structures. The side light-concentrating area is used to converge the light emitted by the corresponding sub-pixel towards the centerline of the first protrusion. The concave structures are used to disperse the light emitted by the corresponding sub-pixel away from the centerline of the concave structures. The top light-uniforming area is a portion of the first protrusion centered at its apex. The side light-concentrating area is the area of ​​the first protrusion excluding the top light-uniforming area.

[0009] Wherein, the orthographic projection of the sub-pixel onto the display substrate is located within the orthographic projection of the first protrusion structure onto the display substrate.

[0010] In one embodiment, the plurality of sub-pixels are arranged in an array; the orthographic projection shape of the first protrusion structure on the display substrate includes a circle or an ellipse; the shape of the first cross-section of the first protrusion structure includes a semi-ellipse or a semi-circle, and the shape of the second cross-section of the first protrusion structure includes a semi-circle; the first cross-section is parallel to the thickness direction of the display module and parallel to the row direction of the sub-pixels; the second cross-section is parallel to the thickness direction of the display module and parallel to the column direction of the sub-pixels.

[0011] Preferably, the top uniform light area's projected area on the display substrate accounts for less than or equal to 70% of the projected area of ​​the first protrusion structure on the display substrate;

[0012] Preferably, the proportion of the side-focusing area projected onto the second cross section to the proportion of the first protruding structure projected onto the second cross section is greater than or equal to 40%.

[0013] In one embodiment,

[0014] Two adjacent first protrusion structures come into contact and form a contact line, which is located at the middle gap between two adjacent sub-pixels.

[0015] In one embodiment, the plurality of said sub-pixels are arranged in an array; two adjacent sub-pixels in the same row are used to emit light of different colors; the orthographic projection shape of the plurality of said concave structures on the display substrate includes at least one of a circle and an ellipse;

[0016] Preferably, the diameter of the circular concave structure is 1 / 20 to 1 / 10 of the size of the sub-pixel in the row direction;

[0017] Preferably, the major diameter of the elliptical concave structure is 1 / 20 to 1 / 10 of the size of the sub-pixel in the column direction; the minor diameter of the elliptical concave structure is 1 / 20 to 1 / 10 of the size of the sub-pixel in the row direction.

[0018] In one embodiment, the orthographic projection of the plurality of sub-pixels with the same emitted light onto the display substrate is located within the orthographic projection of the first protrusion structure onto the display substrate.

[0019] In one embodiment, the material of the anti-glare structural layer includes resin and siloxane materials.

[0020] In one embodiment, it further includes:

[0021] A protective layer is disposed on the side of the anti-glare structural layer opposite to the display substrate, and the hardness of the protective layer is greater than that of the anti-glare structural layer;

[0022] Preferably, the protective layer has a second protrusion structure corresponding to the first protrusion structure on the side opposite to the anti-glare structural layer;

[0023] Preferably, the protective layer is made of siloxane-based materials; the anti-glare structural layer is made of resin and silicon dioxide.

[0024] In one embodiment, the surface of the protective layer facing away from the anti-glare structural layer is a flat surface;

[0025] The refractive index of the protective layer is less than that of the anti-glare structural layer.

[0026] In one embodiment, the display module further includes:

[0027] A polarizing functional layer is disposed on the light-emitting side of the display substrate;

[0028] The anti-glare structural layer is coated on the surface of the polarizing functional layer opposite to the display substrate; or, the anti-glare structural layer includes a substrate and an anti-glare layer stacked together, with the substrate disposed on the surface of the polarizing functional layer opposite to the display substrate.

[0029] Secondly, this application also provides a method for manufacturing a display module, comprising:

[0030] Obtain the position information of preset points on a side of the display substrate with multiple sub-pixels;

[0031] Based on the position information of preset points on one side of multiple sub-pixels in the display substrate, the position information and size information of each sub-pixel, a first bump structure layer is formed at the target position on the light-emitting side of the display substrate to prepare an anti-glare structure layer, thereby preparing the display module as described above.

[0032] The aforementioned display module and its fabrication method include a display substrate and an anti-glare structural layer. The display substrate includes multiple pixel units, each pixel unit including multiple sub-pixels for emitting different colors of light. The anti-glare structural layer is disposed on the light-emitting side of the display substrate and has multiple first protrusion structures. Each first protrusion structure has a side light-concentrating area and a top light-uniforming area. The top light-uniforming area of ​​each first protrusion structure has multiple spaced-apart concave structures. The side light-concentrating area can converge the light emitted by the corresponding sub-pixel towards the centerline of the first protrusion structure, thereby reducing light mixing of different colors emitted by different sub-pixels and improving the flicker problem caused by light mixing in existing display modules. The concave structures in this application can disperse the light emitted by the corresponding sub-pixel away from the centerline of the concave structure. The light emitted through the concave structure intersects with the light emitted from the area adjacent to the concave structure in the first protrusion structure, thereby improving the light emission uniformity of the display module. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments of this application or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is one of the structural schematic diagrams of a display module in one embodiment of this application;

[0035] Figure 2 This is a schematic diagram showing the case where the shape of the first cross-section of the first protrusion structure in one embodiment of this application is semi-elliptical;

[0036] Figure 3 This is a schematic diagram showing the shape of the first cross-section of the first protrusion structure in one embodiment of this application as a semi-circle;

[0037] Figure 4 This is a schematic diagram of the first protrusion structure in one embodiment of this application when the shape of the second cross-section is semi-circular;

[0038] Figure 5 This is a schematic diagram showing the proportion of the top uniform light area projected onto the display substrate in one embodiment of this application to the projected area of ​​the first protrusion structure on the display substrate.

[0039] Figure 6 This is a schematic diagram showing the proportion of the side focusing area in the second cross section to the orthographic projection area of ​​the first protruding structure in the second cross section in one embodiment of this application.

[0040] Figure 7 This is a schematic diagram of the orthographic projection shape of two adjacent first protrusion structures on the display substrate in one embodiment of this application;

[0041] Figure 8 This is a schematic diagram showing that, in one embodiment of this application, the orthographic projection of a plurality of sub-pixels with the same emitted light onto the display substrate is located within the orthographic projection of the first protrusion structure onto the display substrate.

[0042] Figure 9 This is a second schematic diagram of the structure of the display module in one embodiment of this application;

[0043] Figure 10 This is the third schematic diagram of the structure of the display module in one embodiment of this application;

[0044] Figure 11 This is the fourth schematic diagram of the structure of the display module in one embodiment of this application;

[0045] Figure 12 This is a schematic flowchart of a method for preparing a display module according to an embodiment of this application.

[0046] Explanation of icon numbers:

[0047] 110: Display substrate; 111: Subpixel; 111a: First subpixel; 111b: Second subpixel; 120: Anti-glare structural layer; 121: First protrusion structure; 1211: Side light-gathering area; 1212: Top light-diffusing area; 2121: Recessed structure; 130: Protective layer; 131: Second protrusion structure; 140: Polarizing functional layer. Detailed Implementation

[0048] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0049] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, 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 of this application.

[0050] Furthermore, the terms "first" and "second" 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 as "first" or "second" 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.

[0051] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0052] In related display modules, the display module includes multiple functional layers to achieve specific display effects and optical performance. Among these, the anti-glare structural layer primarily reduces surface reflection, improving the viewing angle and contrast. The surface of the anti-glare structural layer has tiny raised structures to achieve the anti-glare effect.

[0053] However, improper placement of the protrusions in the anti-glare structure layer can cause different colors of scattered light to mix in a concentrated manner, resulting in local color brightness that does not meet display requirements and thus producing a visual flickering phenomenon.

[0054] Furthermore, while the raised structure of the AG layer provides anti-glare effects, it can also lead to uneven light emission from the display module. The raised structure alters the light propagation path, causing some light to be scattered and refracted as it passes through the AG layer, resulting in uneven intensity distribution of light in different directions. This uneven light distribution affects the overall brightness uniformity of the display module, especially in high-contrast and high-brightness display scenarios, where this unevenness is more pronounced.

[0055] One embodiment of this application provides a display module, see attached drawing. Figure 1 , attached Figure 1 This diagram illustrates one of the structural schematics of a display module according to an embodiment of this application. It includes a display substrate 110 and an anti-glare structural layer 120. The display substrate 110 includes multiple pixel units, each pixel unit including multiple sub-pixels 111 for emitting light of different colors.

[0056] The display substrate 110 in this embodiment may include a substrate and an organic light-emitting diode (OLED) layer disposed on the surface of the substrate. The substrate may include a glass substrate. The OLED layer has a plurality of sub-pixels 111, which may be arranged in an array or other arrangements. Taking as an example a pixel unit comprising a plurality of sub-pixels 111 for emitting three different colors of light, and the plurality of sub-pixels 111 arranged in an array, adjacent sub-pixels 111 in the same row are used to emit different colors of light (e.g., [missing information]). Figure 1 The light emitted by the first sub-pixel 111a and the second sub-pixel 111b in the image is of different colors.

[0057] For example, the multiple sub-pixels 111 include multiple sub-pixels emitting red light, multiple sub-pixels emitting green light, and multiple sub-pixels emitting blue light. A sub-pixel emitting red light, a sub-pixel emitting green light, and a sub-pixel emitting blue light can form a single emitting pixel, and these emitting pixels are arranged in an array at intervals. This application does not limit the shape of each sub-pixel 111 in its embodiments. For ease of explanation, the accompanying drawings in this application illustrate the shape of each sub-pixel 111 as a rectangle. It is understood that in other embodiments, the shape of each sub-pixel 111 can also be other, such as square, circle, ellipse, etc., and is not limited thereto.

[0058] An anti-glare structural layer 120 is disposed on the light-emitting side of the display substrate 110. The anti-glare structural layer 120 has a plurality of first protrusion structures 121. Each first protrusion structure 121 has a side light-concentrating region 1211 and a top light-diffusing region 1212. The top light-diffusing region 1212 of each first protrusion structure 121 has a plurality of spaced-apart concave structures 2121. The side light-concentrating region 1211 is used to converge the light emitted by the corresponding sub-pixel 111 toward the center line l1 of the first protrusion structure 121. The concave structures 2121 are used to disperse the light emitted by the corresponding sub-pixel 111 toward the center line l2 away from the concave structures 2121. The top light-diffusing region 1212 is a portion of the area centered on the apex of the first protrusion structure 121; the side light-concentrating region 1211 is the area of ​​the first protrusion structure 121 excluding the top light-diffusing region 1212. The orthographic projection of subpixel 111 onto display substrate 110 is located within the orthographic projection of first protrusion structure 121 onto display substrate 110.

[0059] The first protrusion structure 121 is a nanoscale microstructure. A uniformly rough first protrusion structure 121 is formed on the surface of the anti-glare structural layer 120. When light is incident, the first protrusion structure 121 scatters the light into diffuse reflection at different angles. This diffuse reflection effect prevents direct light from entering the human eye, thereby reducing glare.

[0060] To ensure clear visibility of the displayed content, the transmittance of the anti-glare structural layer 120 can be higher than 90%.

[0061] When light shines on a display screen or other transparent surface, some of the light is reflected. This reflected light enters the human eye and overlaps with the light transmitted through the screen. If the intensity of the reflected light is high, it can interfere with the normal observation of the screen content, leading to visual fatigue or difficulty in seeing the screen content clearly. This phenomenon is called glare. Reflected light reduces the contrast of the displayed content, making images or text appear blurry. Low reflectivity means that the intensity of reflected light is significantly reduced. When reflected light is reduced, the human eye receives primarily the light emitted by the screen itself, rather than the reflected light. Furthermore, low reflectivity can improve the contrast of the displayed content, making images or text clearer and more vivid. Reducing the interference of reflected light can reduce eye fatigue, especially in bright light environments (such as outdoor sunlight), where low-reflectivity screens maintain better visibility. Therefore, visual comfort can be improved by reducing the reflectivity of the anti-glare structural layer 120, thereby achieving an anti-glare effect. For example, the anti-glare structural layer 120 can be controlled below 2% to improve its anti-glare performance.

[0062] The design of the first protrusion structure 121 of the anti-glare structural layer 120 also determines the scattering effect. Improper position and size of the first protrusion structure 121 may lead to concentrated mixing of scattered light of different colors, causing local color brightness to fail to meet display requirements, thus resulting in flickering issues. In this embodiment, the first protrusion structure 121 corresponds to the sub-pixel 111. The orthographic projection of the first protrusion structure 121 onto the display substrate 110 completely covers the orthographic projection of the sub-pixel 111 onto the display substrate 110, and the orthographic projection of the sub-pixel 111 onto the display substrate 110 is located within the orthographic projection of the first protrusion structure 121 onto the display substrate 110. Therefore, light emitted from the sub-pixel 111 corresponding to the position of the first protrusion structure 121 can pass through the first protrusion structure 121 of the anti-glare layer. The first protruding structure 121 has a side light-concentrating area 1211 and a top light-uniforming area 1212. The side light-concentrating area 1211 can converge the light emitted from the sub-pixels 111 towards the center line l1 of the first protruding structure 121, thereby reducing the mixing of different colors of light emitted by different sub-pixels 111. The top light-uniforming area 1212 is provided with a plurality of spaced concave structures 2121. The concave structures 2121 can disperse the light in a direction away from the center line l2 of the concave structures 2121. The light emitted through the concave structures 2121 intersects with the light emitted from the area of ​​the first protruding structure 121 adjacent to the concave structures 2121, thereby improving the light emission uniformity of the display module.

[0063] In one embodiment, the anti-glare structural layer 120 can be prepared by inkjet printing (IJP). This allows for the efficient and precise formation of the first raised structure 121 in the anti-glare structural layer 120, improving the preparation accuracy of the first raised structure 121. The inkjet ink used to prepare the anti-glare structural layer 120 may include resins (such as silane oxy resins, acrylic resins, etc.), solvents (such as alcohols, ethers, etc.), and additives (such as leveling agents, defoamers, etc.). Furthermore, the inkjet ink for the anti-glare structural layer 120 may also incorporate nano-titanium dioxide, nano-alumina, etc., to provide a uniform microstructure and enhance the anti-glare effect. Before preparing the anti-glare structural layer 120, the substrate can be cleaned and dried to ensure that the substrate surface is free of impurities. A matte ink is then sprayed onto the substrate surface using an inkjet printer. The inkjet printer can precisely control the ink ejection volume, pattern, and printing density via computer to ensure that the formation position and size of the first raised structure 121 meet the requirements. During the printing process, a heating plate can be used to maintain the substrate at a temperature of 30–85°C to accelerate the drying and atomization of ink dots. The substrate printed with matte ink is placed in a heating device (such as an oven) and maintained at a curing temperature of 200°C–350°C to allow the solvent in the ink to evaporate, forming a firm matte layer, thereby completing the preparation of the anti-glare structural layer 120.

[0064] In one embodiment, a laser can be used to create dots in a portion of the first protrusion 121 centered at its apex, thereby forming a concave structure 2121 in the top uniform light area 1212. The embodiments of this application do not include methods for forming the concave structure 2121, which are not limited to the examples described above.

[0065] In one embodiment, a plurality of sub-pixels 111 are arranged in an array; the orthographic projection shape of the first protrusion structure 121 on the display substrate 110 includes a circle or an ellipse; the shape of the first cross-section of the first protrusion structure 121 includes a semi-ellipse or a semi-circle, and the shape of the second cross-section of the first protrusion structure 121 includes a semi-circle; the first cross-section is parallel to the thickness direction of the display module and parallel to the row direction of the sub-pixels 111; the second cross-section is parallel to the thickness direction of the display module and parallel to the column direction of the sub-pixels 111.

[0066] For example, see Appendix Figures 2-4 Attached image Figure 2 A schematic diagram is shown when the first cross-section of the first protrusion structure 121 is semi-elliptical. (Attached) Figure 3 A schematic diagram is shown showing the case where the first cross-section of the first protrusion structure 121 is semi-circular. (Attached) Figure 4 A schematic diagram is shown of the first protrusion structure 121 with a semi-circular shape in the second cross-section. In other embodiments, the shape of the first protrusion structure 121 may also be other than the example shown above.

[0067] In one embodiment, see Appendix Figure 5 The diagram illustrates the first protrusion structure 121 projecting onto the display substrate 110 in the form of a circle. Figure 5 A schematic diagram is shown showing the proportion of the top uniform light area 1212 projected onto the display substrate 110 in terms of the proportion of the first protrusion structure 121 projected onto the display substrate 110. The proportion of the top uniform light area 1212 projected onto the display substrate 110 in terms of the proportion of the first protrusion structure 121 projected onto the display substrate 110 is less than or equal to 70%.

[0068] In this embodiment, the top light-diffusing area 1212 is provided with a concave structure 2121 that disperses the light emitted from the corresponding sub-pixel 111 in a direction away from the center line l2 of the concave structure 2121. The positive projection area of ​​the top light-diffusing area 1212 on the display substrate 110 accounts for less than or equal to 70% of the positive projection area of ​​the first protrusion structure 121 on the display substrate 110. This allows most of the light incident on the first protrusion structure 121 to be emitted through the top light-diffusing area 1212, thereby improving light uniformity.

[0069] In one embodiment, see Appendix Figure 6, attached Figure 6 A schematic diagram showing the proportion of the projected area of ​​the side focusing area 1211 in the second cross-section to the projected area of ​​the first protruding structure 121 in the second cross-section is shown. The proportion of the projected area of ​​the side focusing area 1211 in the second cross-section to the projected area of ​​the first protruding structure 121 in the second cross-section is greater than or equal to 40%.

[0070] In this embodiment, the side light-concentrating area 1211 has a projected area in the second cross section that accounts for more than or equal to 40% of the projected area in the second cross section of the first protruding structure 121. The side light-concentrating area 1211 does not have a concave structure 2121. The light from the side light-concentrating area 1211 can converge towards the center line l1 of the first protruding structure 121, which can prevent the light emitted from the corresponding sub-pixel 111 from mixing with the light of a different color emitted from another sub-pixel 111 through the side light-concentrating area 1211, thereby improving the display performance of the display module.

[0071] In one embodiment, see Appendix Figure 7 , attached Figure 7 A schematic diagram of the orthographic projection shape of two adjacent first protrusion structures 121 on the display substrate 110 is shown. In this embodiment, two adjacent first protrusion structures 121 can contact each other and form a contact line l3, which is located at the middle gap between two adjacent sub-pixels 111.

[0072] In this embodiment, two adjacent first protrusion structures 121 can contact each other and form a contact line l3, so that the first protrusion structure 121 can receive most of the light emitted from each corresponding sub-pixel 111, thereby improving the light emission efficiency of the display module. The contact line l3 is located at the middle gap between two adjacent sub-pixels 111, so that the effect of each first protrusion structure 121 on the light emitted from the corresponding sub-pixel 111 is almost the same, thereby improving the uniformity of light emission of each color.

[0073] In one embodiment, a plurality of sub-pixels 111 are arranged in an array; two adjacent sub-pixels 111 located in the same row are used to emit light of different colors; the orthographic projection shape of the plurality of concave structures 2121 on the display substrate 110 includes at least one of a circle and an ellipse.

[0074] The diameter of the circular concave structure 2121 is 1 / 20 to 1 / 10 of the size of the sub-pixel 111 in the row direction.

[0075] The major diameter of the elliptical concave structure 2121 is 1 / 20 to 1 / 10 of the size of the sub-pixel 111 in the column direction; the minor diameter of the elliptical concave structure 2121 is 1 / 20 to 1 / 10 of the size of the sub-pixel 111 in the row direction.

[0076] In this embodiment, the size of the concave structure 2121 corresponds to the size of the sub-pixel 111. When the orthographic projection shape of the concave structure 2121 on the display substrate 110 is circular, the diameter of the circular concave structure 2121 is 1 / 20 to 1 / 10 of the size of the sub-pixel 111 in the row direction. When the orthographic projection shape of the concave structure 2121 on the display substrate 110 is elliptical, the major diameter of the elliptical concave structure 2121 is 1 / 20 to 1 / 1 of the size of the sub-pixel 111 in the column direction, and the minor diameter of the elliptical concave structure 2121 is 1 / 20 to 1 / 10 of the size of the sub-pixel 111 in the row direction. This allows for better interaction with the concave structure 2121, reducing light scattering within the structure. Light emitted from each sub-pixel 111 can be emitted more evenly onto the display screen surface, enabling the concave structure 2121 to effectively diffuse the light emitted from the corresponding sub-pixel 111 and reduce light loss.

[0077] It is understood that in other embodiments, the orthographic projection shape of the concave structure 2121 on the display substrate 110 can also be other shapes, such as rectangles, squares, etc. When the orthographic projection shape of the concave structure 2121 on the display substrate 110 is another shape, such as a rectangle, the longer side of the rectangle can be 1 / 20 to 1 / 10 of the dimension of the sub-pixel 111 in the column direction, and the shorter side of the rectangle can be 1 / 20 to 1 / 10 of the dimension of the sub-pixel 111 in the row direction. As another example, when the orthographic projection shape of the concave structure 2121 on the display substrate 110 is a square, the side of the square can be 1 / 20 to 1 / 10 of the dimension of the sub-pixel 111 in the row direction.

[0078] In one embodiment, see Appendix Figure 8 The diagram illustrates the case where the orthographic projection of the first protrusion structure 121 onto the display substrate 110 is elliptical. Figure 8 A schematic diagram is shown showing that the orthographic projection of the plurality of sub-pixels 111 with the same emitted light onto the display substrate 110 is located within the orthographic projection of the first protrusion structure 121 onto the display substrate 110. In this embodiment, the orthographic projection of the plurality of sub-pixels 111 with the same emitted light onto the display substrate 110 is located within the orthographic projection of the first protrusion structure 121 onto the display substrate 110.

[0079] In this embodiment, the orthographic projection of multiple sub-pixels 111 emitting the same light onto the display substrate 110 is located within the orthographic projection of the first protrusion structure 121 onto the display substrate 110. A protrusion structure can cover multiple sub-pixels 111 emitting the same color light, and the light from the gaps between multiple sub-pixels 111 can also be emitted through the first protrusion structure 121, which can improve the light emission efficiency and light uniformity of the display module.

[0080] In one embodiment, the anti-glare structural layer 120 is made of resin and siloxane materials.

[0081] In this embodiment, the material of the anti-glare structural layer 120 includes resin and siloxane materials, which can enhance the hardness of the anti-glare structural layer 120 and resist external damage without the need for a cover plate.

[0082] In one embodiment, see Appendix Figure 9 , attached Figure 9 The second schematic diagram of the display module is shown. The display module may also include a protective layer 130. The protective layer 130 is disposed on the side of the anti-glare structural layer 120 opposite to the display substrate 110, and the hardness of the protective layer 130 is greater than the hardness of the anti-glare structural layer 120.

[0083] The display module in this embodiment is also provided with a protective layer 130. The hardness of the protective layer 130 is greater than that of the anti-glare structural layer 120, which establishes physical isolation between the anti-glare structural layer 120 and the external environment. It can resist the scratches of sharp objects and prevent the corrosion of external chemicals, thereby maintaining the optical performance and structural integrity of the anti-glare structural layer 120.

[0084] In one embodiment, see Appendix Figure 10 , attached Figure 10 A schematic diagram of the protective layer 130 is shown. The protective layer 130 has a second protrusion structure 131 corresponding to the first protrusion structure 121 on the side opposite to the anti-glare structure layer 120.

[0085] In this embodiment, the protective layer 130 has a second protrusion structure 131 on the side opposite to the anti-glare structure layer 120. The second protrusion structure 131 corresponds to the first protrusion structure 121, which can reduce light loss and improve the light output efficiency of the display module.

[0086] In one embodiment, the protective layer 130 is made of a siloxane-based material; the anti-glare structural layer 120 is made of a resin and silicon dioxide.

[0087] The resin used to prepare the anti-glare structural layer 120 includes, but is not limited to, acrylic resin, polyurethane resin, and curing resin, providing high strength, transparency, and mechanical properties. The silica used to prepare the anti-glare structural layer 120 consists of nano-sized silica particles, whose roughness can be controlled by adjusting their particle size and distribution, thereby achieving a good anti-glare effect. Simultaneously, nano-silica can also improve the hardness, wear resistance, and scratch resistance of the anti-glare structural layer 120.

[0088] In this embodiment, the material of the protective layer 130 includes siloxane-based materials, which can ensure the hardness of the protective layer 130 and provide more stable physical protection for the anti-glare structural layer 120.

[0089] In one embodiment, see Appendix Figure 9 The surface of the protective layer 130 facing away from the anti-glare structure layer 120 is a flat surface. The refractive index of the protective layer 130 is less than that of the anti-glare structure layer 120, which can reduce light loss.

[0090] In one embodiment, see Appendix Figure 10 , attached Figure 10 The third schematic diagram of the display module structure is shown. The display module in this embodiment also includes a polarizing functional layer 140. The polarizing functional layer 140 is disposed on the light-emitting side of the display substrate 110. An anti-glare structural layer 120 is coated on the surface of the polarizing functional layer 140 facing away from the display substrate 110.

[0091] In this embodiment, the display module may further include a polarizing functional layer 140, and an anti-glare structural layer 120 coated on the surface of the polarizing functional layer 140 facing away from the display substrate 110. This can be understood as the polarizing functional layer 140 and the anti-glare structural layer 120 being integrally formed, reducing the optical interface between them and minimizing light energy loss caused by reflection and refraction at different media interfaces. Furthermore, the integral formation of the polarizing functional layer 140 and the anti-glare structural layer 120 allows for better control of light propagation and polarization direction, reducing light scattering and glare, and improving the contrast and color reproduction of the displayed image.

[0092] In one embodiment, see Appendix Figure 11 , attached Figure 11 The fourth schematic diagram of the display module shows that the anti-glare structural layer 120 includes a substrate and an anti-glare layer stacked together. The substrate is disposed on the surface of the polarization functional layer 140 on the side opposite to the display substrate 110.

[0093] In this embodiment, the anti-glare structural layer 120 has an independent substrate, and the anti-glare layer is disposed on the surface of the substrate to achieve the anti-glare function. The substrate is disposed on the surface of the polarization functional layer 140 facing away from the display substrate 110. It can be understood that the anti-glare structural layer 120 and the polarization functional layer 140 are independently disposed, which allows for more flexible allocation of the fabrication materials of the anti-glare structural layer 120 and the polarization functional layer 140, thereby improving the yield of the display module.

[0094] In one embodiment, see Appendix Figure 12 Furthermore, a method for manufacturing a display module is also provided. The method for manufacturing the display module in this embodiment includes the following steps S1201 to S1202.

[0095] Step S1201: Obtain the position information of a preset point on a side of the display substrate with multiple sub-pixels.

[0096] For example, step S1201 may include: acquiring image information of a side of the display substrate with multiple sub-pixels; and acquiring position information of preset points on the side of the display substrate with multiple sub-pixels based on the image information.

[0097] Step S1201 can be implemented using a visual recognition system. For example, an image of the target object or scene is captured by an image acquisition device (such as a camera) in the visual recognition system and converted into a digital signal. Image preprocessing (such as denoising, grayscale conversion, and edge detection) is performed by a computer program, and useful features are extracted from the preprocessed image to obtain the position information of preset points on one side of the display substrate where multiple sub-pixels are located.

[0098] Step S1202: Based on the position information of preset points on one side of the multiple sub-pixels in the display substrate, the position information and size information of each sub-pixel, a first bump structure layer is formed at the target position on the light-emitting side of the display substrate to prepare an anti-glare structure layer, thereby preparing the display module in any of the above embodiments.

[0099] The display substrate has multiple sub-pixels with preset point position information on one side. The position information and size information of each sub-pixel are formed at the target position on the surface of the substrate away from the display substrate to form a first bump structure. This allows the prepared anti-glare structure layer to be accurately positioned with the display substrate, so that the prepared first bump structure meets the position and size described in any of the above embodiments.

[0100] It should be understood that although the steps in the flowcharts of the embodiments described above are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the embodiments described above may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.

[0101] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0102] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the scope of protection of this patent application should be determined by the appended claims.

Claims

1. A display module, characterized in that, include: The display substrate includes multiple pixel units, and each pixel unit includes multiple sub-pixels for emitting light of different colors; An anti-glare structural layer is disposed on the light-emitting side of the display substrate. The anti-glare structural layer has multiple first protrusions, each first protrusion having a side light-concentrating area and a top light-uniforming area. The top light-uniforming area of ​​each first protrusion has multiple spaced-apart concave structures. The side light-concentrating area is used to converge the light emitted by the corresponding sub-pixel towards the centerline of the first protrusion. The concave structures are used to disperse the light emitted by the corresponding sub-pixel away from the centerline of the concave structures. The top light-uniforming area is a portion of the first protrusion centered at its apex. The side light-concentrating area is the area of ​​the first protrusion excluding the top light-uniforming area. Wherein, the orthographic projection of the sub-pixel onto the display substrate is located within the orthographic projection of the first protrusion structure onto the display substrate.

2. The display module according to claim 1, characterized in that, The sub-pixels are arranged in an array; the orthographic projection shape of the first protrusion structure on the display substrate includes a circle or an ellipse; the shape of the first cross-section of the first protrusion structure includes a semi-ellipse or a semi-circle, and the shape of the second cross-section of the first protrusion structure includes a semi-circle; the first cross-section is parallel to the thickness direction of the display module and parallel to the row direction of the sub-pixels; the second cross-section is parallel to the thickness direction of the display module and parallel to the column direction of the sub-pixels. Preferably, the top uniform light area's projected area on the display substrate accounts for less than or equal to 70% of the projected area of ​​the first protrusion structure on the display substrate; Preferably, the proportion of the side-focusing area projected onto the second cross section to the proportion of the first protruding structure projected onto the second cross section is greater than or equal to 40%.

3. The display module according to claim 1, characterized in that, Two adjacent first protrusion structures come into contact and form a contact line, which is located at the middle gap between two adjacent sub-pixels.

4. The display module according to claim 1, characterized in that, The sub-pixels are arranged in an array; two adjacent sub-pixels in the same row are used to emit light of different colors; the orthographic projection shape of the multiple concave structures on the display substrate includes at least one of a circle and an ellipse; Preferably, the diameter of the circular concave structure is 1 / 20 to 1 / 10 of the size of the sub-pixel in the row direction; Preferably, the major diameter of the elliptical concave structure is 1 / 20 to 1 / 10 of the size of the sub-pixel in the column direction; the minor diameter of the elliptical concave structure is 1 / 20 to 1 / 10 of the size of the sub-pixel in the row direction.

5. The display module according to claim 1, characterized in that, The orthographic projection of the multiple sub-pixels with the same emitted light onto the display substrate is located within the orthographic projection of the first protrusion structure onto the display substrate.

6. The display module according to claim 1, characterized in that, The anti-glare structural layer is made of resin and siloxane materials.

7. The display module according to claim 1, characterized in that, Also includes: A protective layer is disposed on the side of the anti-glare structural layer opposite to the display substrate, and the hardness of the protective layer is greater than that of the anti-glare structural layer; Preferably, the protective layer has a second protrusion structure corresponding to the first protrusion structure on the side opposite to the anti-glare structural layer; Preferably, the protective layer is made of siloxane-based materials; the anti-glare structural layer is made of resin and silicon dioxide.

8. The display module according to claim 7, characterized in that, The surface of the protective layer opposite to the anti-glare structural layer is a flat surface; The refractive index of the protective layer is less than that of the anti-glare structural layer.

9. The display module according to claim 1, characterized in that, The display module also includes: A polarizing functional layer is disposed on the light-emitting side of the display substrate; The anti-glare structural layer is coated on the surface of the polarizing functional layer opposite to the display substrate; or, the anti-glare structural layer includes a substrate and an anti-glare layer stacked together, with the substrate disposed on the surface of the polarizing functional layer opposite to the display substrate.

10. A method for manufacturing a display module, characterized in that, include: Obtain the position information of preset points on a side of the display substrate with multiple sub-pixels; Based on the position information of preset points on one side of multiple sub-pixels in the display substrate, the position information and size information of each sub-pixel, a first bump structure layer is formed at the target position on the light-emitting side of the display substrate to prepare an anti-glare structure layer, thereby preparing a display module as described in any one of claims 1 to 9.

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