Display module and display device

Abstract

This invention discloses a display module, belonging to the technical field of display module technology. The display module includes a display area and a non-display area located around or in the center of the display area. A transparent cover plate and a polarizer, comprising the display area and the non-display area, are connected by an optical adhesive layer. An ink layer and a transparent resin layer overlap between the optical adhesive layer in the non-display area and the transparent cover plate. The transparent resin layer fills the space between the ink layer near the display area and the optical adhesive layer within the display area. The ink layer and the transparent resin layer are disposed in the same layer, and the orthographic projections of the ink layer on the transparent cover plate and the optical adhesive layer in the non-display area on the transparent cover plate partially overlap, as do the orthographic projections of the transparent resin layer on the transparent cover plate and the optical adhesive layer in the non-display area on the transparent cover plate. This reduces the risk of air bubbles forming between the ink layer near the display area and the optical adhesive layer within the display area through the transparent resin layer.

Description

Technical Field

[0001] This invention belongs to the field of display technology, specifically relating to a display module and a display device. Background Technology

[0002] With the development of technology, electronic devices are becoming increasingly widely used, enabling users to watch videos and capture images through their display modules. As the demand for display modules continues to rise, their display areas are also increasing. In particular, the market demand for narrow bezel designs in display modules is growing stronger. However, narrow bezel designs reduce the overlap between the optical adhesive and ink layers, which increases the risk of air bubbles forming in those areas, thus reducing the display effect of the display module. Summary of the Invention

[0003] The purpose of this invention is to provide a display module and display device that can solve the problem of reduced display effect caused by air bubbles in the display module.

[0004] This invention provides a display module, the display module comprising:

[0005] The display area, and the non-display area located around or in the center of the display area;

[0006] The display area and the non-display area include a transparent cover plate and a polarizer stacked together, and the transparent cover plate and the polarizer are connected by an optical adhesive layer;

[0007] An ink layer and a transparent resin layer overlap between the optical adhesive layer located in the non-display area and the transparent cover plate, and the transparent resin layer fills the space between the ink layer on the side near the display area and the optical adhesive layer located in the display area;

[0008] The ink layer and the transparent resin layer are disposed in the same layer, and the orthographic projection of the ink layer on the transparent cover plate and the orthographic projection of the optical adhesive layer located in the non-display area on the transparent cover plate partially overlap, as do the orthographic projection of the transparent resin layer on the transparent cover plate and the orthographic projection of the optical adhesive layer located in the non-display area on the transparent cover plate.

[0009] Optionally, the number of ink layers overlapping between the optical adhesive layer and the transparent cover plate in the non-display area is at least one.

[0010] Optionally, when the number of layers of the ink layer between the optical adhesive layer and the transparent cover plate in the non-display area is two, the ink layer includes a first ink layer and a second ink layer stacked together, and the transparent resin layer includes a first resin layer and a second resin layer;

[0011] The first layer of ink overlaps between the transparent cover plate and the second layer of ink, and the second layer of ink overlaps between the optical adhesive layer and the first layer of ink;

[0012] The first resin layer is located between the side of the first ink layer near the display area and the optical adhesive layer located within the display area;

[0013] The second resin layer is located between the side of the second ink layer near the display area and the optical adhesive layer located within the display area.

[0014] Optionally, the orthographic projection of the second layer of ink on the transparent cover plate and the orthographic projection of the first layer of ink on the transparent cover plate partially overlap.

[0015] Optionally, the area of ​​the orthographic projection of the second layer of ink onto the transparent cover is smaller than the area of ​​the orthographic projection of the first layer of ink onto the transparent cover.

[0016] Optionally, at least one of the first resin layer and the second resin layer has an extension, the extension being located at at least one of the following positions: between the first ink layer and the second ink layer, between the first ink layer and the transparent cover plate, and between the second ink layer and the optical adhesive layer;

[0017] The extension extends away from the display area, and the orthographic projection of the extension on the transparent cover plate and the orthographic projection of the first layer of ink on the transparent cover plate at least partially overlap.

[0018] Optionally, when the extension is located between the first ink layer and the second ink layer, or when the extension is located between the second ink layer and the optical adhesive layer, the extension and the second resin layer cover a first portion of the second ink layer, the first portion being the portion of the second ink layer close to the second resin layer.

[0019] Optionally, when the extension is located between the first ink layer and the second ink layer, or when the extension is located between the first ink layer and the transparent cover plate, the extension and the first resin layer cover a second portion of the first ink layer, the second portion being the portion of the first ink layer close to the first resin layer.

[0020] Optionally, when the extension is provided between the first ink layer and the second ink layer, between the first ink layer and the transparent cover plate, and between the second ink layer and the optical adhesive layer, the extension and the second resin layer cover a first portion of the second ink layer, and the extension and the first resin layer cover a second portion of the first ink layer, wherein the first portion is the portion of the second ink layer near the second resin layer, and the second portion is the portion of the first ink layer near the first resin layer.

[0021] Optionally, the first ink layer and the first resin layer are located on the same plane;

[0022] The second ink layer and the second resin layer are located on the same plane.

[0023] Optionally, the ends of the first ink layer away from the first resin layer and the ends of the second ink layer away from the second resin layer are flush in a direction perpendicular to the plane of the transparent cover plate;

[0024] The sum of the area of ​​the orthographic projection of the first layer of ink on the transparent cover and the area of ​​the orthographic projection of the first resin layer on the transparent cover is the first area;

[0025] The sum of the area of ​​the orthographic projection of the second layer of ink on the transparent cover and the area of ​​the orthographic projection of the second resin layer on the transparent cover is the second area, wherein the first area is equal to the second area.

[0026] Optionally, the dimension of the first ink layer in the first direction is equal to the dimension of the first resin layer in the first direction;

[0027] The dimension of the second ink layer in the first direction is equal to the dimension of the second resin layer in the first direction;

[0028] Wherein, the first direction is the direction perpendicular to the plane where the transparent cover plate is located.

[0029] Optionally, the dimensions of the first ink layer in the first direction and the dimensions of the second ink layer in the first direction are greater than or equal to 4 micrometers.

[0030] Optionally, in the non-display area located in the middle of the display area, the polarizer, the ink layer, and the optical adhesive layer are all provided with through holes;

[0031] The orthographic projections of the through holes in the polarizer, the through holes in the ink layer, and the through holes in the optical adhesive layer onto the transparent cover plate at least partially overlap.

[0032] The area of ​​the ink layer and the transparent resin layer projected onto the transparent cover is greater than the area of ​​the optical adhesive layer projected onto the transparent cover in the non-display area.

[0033] This invention also provides a display device, including the display module of any of the foregoing embodiments.

[0034] In this embodiment of the invention, since an ink layer and a transparent resin layer overlap between the optical adhesive layer and the transparent cover plate in the non-display area, and the transparent resin layer fills the space between the ink layer on the side near the display area and the optical adhesive layer in the display area, not only is an ink layer filled between the transparent cover plate and the optical adhesive layer in the non-display area, but also a transparent resin layer is filled. Furthermore, since the ink layer and the transparent resin layer are set in the same layer, and the orthographic projection of the ink layer on the transparent cover plate and the orthographic projection of the optical adhesive layer in the non-display area on the transparent cover plate partially overlap, as do the orthographic projections of the transparent resin layer on the transparent cover plate and the optical adhesive layer in the non-display area on the transparent cover plate, both the ink layer and the transparent resin layer are in contact with the optical adhesive layer in the non-display area. That is, the optical adhesive layer in the non-display area is not only overlapped with the ink layer, but also with the transparent resin layer. This increases the overlap between the filling material between the transparent cover plate and the optical adhesive layer in the non-display area and the optical adhesive layer, ensuring that there is no gap between the side of the ink layer near the display area and the optical adhesive layer in the display area, thus preventing air bubbles from appearing between the side of the ink layer near the display area and the optical adhesive layer in the display area. In this way, even when the display module is used in a narrow-bezel display device, which reduces the overlap between the ink layer and the optical adhesive layer filling the transparent cover and the optical adhesive layer, the overlap between the material filling the transparent cover and the optical adhesive layer in the non-display area can still be ensured by the transparent resin layer filled between the ink layer on the side near the display area and the optical adhesive layer located in the display area. This reduces the risk of air bubbles appearing between the ink layer on the side near the display area and the optical adhesive layer located in the display area, thereby ensuring the display effect of the display module. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is one of the structural schematic diagrams of a display module provided in an embodiment of the present invention;

[0037] Figure 2 This is a second schematic diagram of the structure of a display module provided in an embodiment of the present invention;

[0038] Figure 3 This is the third schematic diagram of the structure of a display module provided in an embodiment of the present invention;

[0039] Figure 4 This is the fourth schematic diagram of the structure of a display module provided in an embodiment of the present invention;

[0040] Figure 5 This is the fifth schematic diagram illustrating the structure of a display module provided in an embodiment of the present invention;

[0041] Figure 6 This is the sixth schematic diagram of the structure of a display module provided in an embodiment of the present invention;

[0042] Figure 7 This is the seventh schematic diagram of the structure of a display module provided in an embodiment of the present invention;

[0043] Figure 8 This is the eighth schematic diagram of the structure of a display module provided in an embodiment of the present invention;

[0044] Figure 9 This is the ninth schematic diagram of the structure of a display module provided in an embodiment of the present invention;

[0045] Figure 10 This is the tenth schematic diagram of the structure of a display module provided in an embodiment of the present invention.

[0046] Figure label:

[0047] 10: Display area; 20: Non-display area; 11: Transparent cover plate; 12: Polarizing film; 13: Optical adhesive layer; 14: Pixel substrate; 21: Ink layer; 22: Transparent resin layer; 23: Substrate; 211: First ink layer; 212: Second ink layer; 221: First resin layer; 222: Second resin layer; 223: Extension. Detailed Implementation

[0048] The terms "first" and "second" in the specification and claims of this invention may explicitly or implicitly include one or more of those features. In the description of this invention, unless otherwise stated, "a plurality of" means two or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0049] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0050] like Figures 1 to 10 As shown, the display module includes:

[0051] Display area 10, and non-display area 20 located around or in the middle of display area 10;

[0052] The display area 10 and the non-display area 20 include a transparent cover plate 11 and a polarizer 12 stacked together, and the transparent cover plate 11 and the polarizer 12 are connected by an optical adhesive layer 13;

[0053] An ink layer 21 and a transparent resin layer 22 overlap between the optical adhesive layer 13 and the transparent cover plate 11 in the non-display area 20. The transparent resin layer 22 fills the space between the ink layer 21 on the side near the display area 10 and the optical adhesive layer 13 located in the display area 10.

[0054] The ink layer 21 and the transparent resin layer 22 are disposed in the same layer, and the orthographic projection of the ink layer 21 on the transparent cover plate 11 and the orthographic projection of the optical adhesive layer 13 located in the non-display area on the transparent cover plate 11 partially overlap, and the orthographic projection of the transparent resin layer 22 on the transparent cover plate 11 and the orthographic projection of the optical adhesive layer 13 located in the non-display area on the transparent cover plate 11 partially overlap.

[0055] As can be seen from the above embodiments, in the embodiments of the present invention, since the optical adhesive layer 13 located in the non-display area 20 and the transparent cover plate 11 are connected by an ink layer 21 and a transparent resin layer 22, and the transparent resin layer 22 is filled between the ink layer 21 on the side near the display area 10 and the optical adhesive layer 13 located in the display area 10, the space between the transparent cover plate 11 and the optical adhesive layer 13 in the non-display area 20 is not only filled with an ink layer 21, but also with a transparent resin layer 22. Furthermore, since the ink layer 21 and the transparent resin layer 22 are disposed in the same layer, and the orthographic projection of the ink layer 21 on the transparent cover plate 11 and the orthographic projection of the optical adhesive layer 13 located in the non-display area on the transparent cover plate 11 partially overlap, and the orthographic projection of the transparent resin layer 22 on the transparent cover plate 11 and the orthographic projection of the optical adhesive layer 13 located in the non-display area on the transparent cover plate 11 partially overlap, both the ink layer 21 and the transparent resin layer 22 are in contact with the optical adhesive layer 13 in the non-display area 20. That is, the optical adhesive layer 13 in the non-display area 20 is not only overlapped with the ink layer 21, but also overlapped with the transparent resin layer 22. This increases the amount of overlap between the filling material between the transparent cover plate 11 and the optical adhesive layer 13 in the non-display area 20 and the optical adhesive layer 13. This ensures that there is no gap between the side of the ink layer 21 near the display area 10 and the optical adhesive layer 13 located in the display area 10, thus preventing air bubbles from appearing between the side of the ink layer 21 near the display area 10 and the optical adhesive layer 13 located in the display area 10. In this way, even when the display module is used on a narrow-bezel display device, reducing the overlap between the ink layer 21 filling the space between the transparent cover plate 11 and the optical adhesive layer 13, the overlap between the material filling the space between the transparent cover plate 11 and the optical adhesive layer 13 in the non-display area 20 and the optical adhesive layer 13 can still be ensured by the transparent resin layer 22 filling the space between the ink layer 21 near the display area 10 and the optical adhesive layer 13 located in the display area 10. This reduces the risk of air bubbles appearing between the ink layer 21 near the display area 10 and the optical adhesive layer 13 located in the display area 10, thereby ensuring the display effect of the display module.

[0056] It should be noted that in the above embodiments, the non-display area 20 can be located around the display area 10, that is, the non-display area 20 is the area where the peripheral area of ​​the display module is located. In other words, the non-display area 20 is located in the area close to the edge of the display module. The non-display area 20 can be located in the center of the display area 10. This area can be the area in the display area 10 used to place cameras, sensors, infrared detectors and other optical devices. This area is usually located in the middle of both sides of the display area 10 and close to the edge of the display module.

[0057] In this embodiment of the invention, the transparent cover 11 can be one of a plastic transparent cover 11, a glass transparent cover 11, an acrylic transparent cover 11, or a PVC transparent cover 11. The plastic transparent cover 11 can be made of materials such as polycarbonate, polyoxymethylene, or polystyrene; the acrylic transparent cover 11 can be made of polymethyl methacrylate; and the PVC transparent cover 11 is typically made of polyvinyl chloride. This embodiment of the invention does not limit the specific materials used. The polarizer 12 is a polymer material made from raw materials such as polyvinyl alcohol film, cellulose triacetate film, protective film, release film, and pressure-sensitive adhesive through processes such as stretching, laminating, and coating. It mainly controls the rotation angle of liquid crystal molecules by changing the polarization state of light, thereby achieving the display effect of the display module.

[0058] Furthermore, in this embodiment, the display module also includes a display substrate disposed on the surface of the polarizer 12 away from the transparent cover plate 11. The display substrate includes a pixel substrate 14 located in the display area 10 and a substrate 23 located in the non-display area 20. The orthographic projection of the ink on the transparent cover plate 11 overlaps with the orthographic projection of the substrate 23 on the transparent cover plate 11, and the orthographic projection of the transparent resin layer 22 on the transparent cover plate 11 overlaps with the orthographic projection of the substrate 23 on the transparent cover plate 11. Furthermore, the boundary between the pixel substrate 14 and the substrate 23 coincides with the boundary between the display area 10 and the non-display area 20 and the boundary between the transparent resin layer 22 and the optical adhesive layer 13 located within the display area 10. The ink layer 21 is used to provide a uniform surface extension to the non-display area 20, thereby achieving the function of covering defects; typically, the ink layer 21 is black.

[0059] The positions and related parameters of the ink layer 21 and the transparent resin layer 22 in this embodiment of the invention are described in detail below:

[0060] Regarding the position of the transparent resin layer 22, in some embodiments, the boundary between the transparent resin layer 22 and the optical adhesive layer 13 located within the display area 10 is the boundary between the display area 10 and the non-display area 20. This ensures that the transparent resin layer 22 does not extend beyond the non-display area 20. Furthermore, due to the high transparency of the transparent adhesive layer, compared to the boundary between the display area 10 and the non-display area 20 being the boundary between the ink layer 21 and the optical adhesive layer 13 located within the display area 10, the boundary between the transparent resin layer 22 and the optical adhesive layer 13 located within the display area 10 is less noticeable when it is the boundary between the display area 10 and the non-display area 20. This improves the consistency of the display module's appearance and enhances the display effect of the display area 10.

[0061] It should be noted that the boundary between the transparent resin layer 22 and the optical adhesive layer 13 located in the display area 10 can be understood as the part where the end of the transparent resin layer 22 away from the ink layer 21 and the end of the optical adhesive layer 13 located in the display area 10 contact each other in a direction parallel to the plane of the transparent cover plate 11.

[0062] Furthermore, the boundary between the ink layer 21 and the transparent resin layer 22 is located in the non-display area 20. Thus, even if there is a clear boundary line between the ink layer 21 and the transparent resin layer 22, the display effect of the display area 10 will not be affected because the boundary between the ink layer 21 and the transparent resin layer 22 is located in the non-display area 20.

[0063] It should be noted that the boundary between the ink layer 21 and the transparent resin layer 22 can be understood as the part of the transparent resin layer 22 that is close to the end of the ink layer 21 and contacts the end of the ink layer 21 in a direction parallel to the plane of the transparent cover plate 11.

[0064] Furthermore, in this embodiment of the invention, the ink layer 21 can be a single layer, a double layer, or other layers, depending on the manufacturing process of the ink layer 21, the thickness of the ink layer 21, and the space between the optical adhesive layer 13 and the transparent cover plate 11 in the non-display area 20. This embodiment of the invention does not limit this.

[0065] Regarding the number of ink layers 21, in some embodiments, the number of ink layers 21 overlapping between the optical adhesive layer 13 and the transparent cover plate 11 in the non-display area 20 is at least one.

[0066] Furthermore, such as Figure 2 , Figures 4 to 10 As shown, in the case of two layers of ink layer 21 overlapping between optical adhesive layer 13 and transparent cover plate 11 in non-display area 20, ink layer 21 includes a first ink layer 211 and a second ink layer 212 stacked together, and transparent resin layer 22 includes a first resin layer 221 and a second resin layer 222; the first ink layer 211 overlaps between transparent cover plate 11 and the second ink layer 212, and the second ink layer 212 overlaps between optical adhesive layer 13 and the first ink layer 211; the first resin layer 221 is located between the side of the first ink layer 211 near display area 10 and the optical adhesive layer 13 located in display area 10; the second resin layer 222 is located between the side of the second ink layer 212 near display area 10 and the optical adhesive layer 13 located in display area 10.

[0067] It should be noted that the first ink layer 211 is the layer closest to the transparent cover plate 11, and the second ink layer 212 is the layer closest to the transparent cover plate 11. Specifically, in one possible manufacturing method, after the first ink layer 211 coated on the transparent cover plate 11 is baked and shaped, a first resin layer 221 is coated between the side of the first ink layer 211 closest to the display area 10 and the optical adhesive layer 13 located in the display area 10. After the first resin layer 221 is baked and shaped, a second ink layer 212 is coated on the surface of the first ink layer 211 away from the transparent cover plate 11 (i.e., the second ink layer 212 covers the first ink layer 211). After the second ink layer 212 is baked and shaped, a second resin layer 222 is coated between the side of the second ink layer 212 closest to the display area 10 and the optical adhesive layer 13 located in the display area 10, such that the second resin layer 222 covers the first resin layer 221. In another possible implementation, a first resin layer 221 can be coated on the transparent cover plate 11 firstly, and then after the first resin layer 221 is baked and shaped, a first layer of ink 211 can be coated on the side of the first resin layer 221 away from the display area 10 (the first layer of ink 211 is coated on the transparent cover plate). After the first layer of ink 211 is baked and shaped, a second resin layer 222 can be coated on the surface of the first resin layer 221 away from the transparent cover plate 11 (so that the second resin layer 222 covers the first resin layer 221). After the second resin layer 222 is baked and shaped, a second layer of ink 212 can be coated on the side of the second resin layer 222 away from the display area 10 (the second layer of ink 212 is coated on the first layer of ink 211). In this way, since the first resin layer 221 is located between the side of the first ink layer 211 near the display area 10 and the optical adhesive layer 13 located in the display area 10, and the second resin layer 222 is located between the side of the second ink layer 212 near the display area 10 and the optical adhesive layer 13 located in the display area 10, it can be ensured that there is no gap between the side of the first ink layer 211 near the display area 10 and the optical adhesive layer 13 located in the display area 10, and that there is no gap between the side of the second ink layer 212 near the display area 10 and the optical adhesive layer 13 located in the display area 10. This can prevent air bubbles from existing between the side of the first ink layer 211 near the display area 10 and the optical adhesive layer 13 located in the display area 10, and between the side of the second ink layer 212 near the display area 10 and the optical adhesive layer 13 located in the display area 10.

[0068] Furthermore, the orthographic projection of the second layer of ink 212 on the transparent cover plate 11 partially overlaps with the orthographic projection of the first layer of ink 211 on the transparent cover plate 11.

[0069] It should be noted that, in this embodiment, the area of ​​the orthographic projection of the second layer of ink 212 onto the transparent cover plate 11 can be larger than the area of ​​the orthographic projection of the first layer of ink 211 onto the transparent cover plate 11, or the area of ​​the orthographic projection of the second layer of ink 212 onto the transparent cover plate 11 can be smaller than the area of ​​the orthographic projection of the first layer of ink 211 onto the transparent cover plate 11. Furthermore, since the first resin layer 221 is located between the side of the first layer of ink 211 near the display area 10 and the optical adhesive layer 13 located within the display area 10, and the second resin layer 222 is located between the side of the second layer of ink 212 near the display area 10 and the optical adhesive layer 13 located within the display area 10, a clear step exists between the first resin layer 221 and the second resin layer 222. In other words, the dimensions of the first resin layer 221 and the second resin layer 222 in the direction parallel to the plane of the transparent cover plate 11 are unequal. This causes the boundary line between the first ink layer 211 and the first resin layer 221 to pass through the second resin layer 222, or the boundary line between the second ink layer 212 and the second resin layer 222 to pass through the first resin layer 221. In other words, the boundary line between the ink layer 21 and the transparent resin layer 22 includes either the boundary line between the first ink layer 211 and the first resin layer 221 or the boundary line between the second ink layer 212 and the second resin layer 222, thereby making the boundary between the ink layer 21 and the transparent resin layer 22 more blurred.

[0070] In some embodiments, the area of ​​the orthographic projection of the second layer of ink 212 onto the transparent cover plate 11 is smaller than the area of ​​the orthographic projection of the first layer of ink 211 onto the transparent cover plate 11.

[0071] It should be noted that, in this embodiment, the area of ​​the orthographic projection of the second layer of ink 212 onto the transparent cover plate 11 is smaller than the area of ​​the orthographic projection of the first layer of ink 211 onto the transparent cover plate 11. This means that the dimension of the first resin layer 221 in the direction parallel to the plane of the transparent cover plate 11 is smaller than the dimension of the second resin layer 222 in the same direction. In other words, a clear step can be created between the first resin layer 221 and the second resin layer 222. This ensures that the boundary line between the first layer of ink 211 and the first resin layer 221 passes through the second resin layer 222, so that the boundary line between the ink layer 21 and the transparent resin layer 22 only includes the boundary line between the first layer of ink 211 and the first resin layer 221, thereby making the boundary line between the ink layer 21 and the transparent resin layer 22 less prominent.

[0072] Optional, such as Figures 5 to 10As shown, at least one of the first resin layer 221 and the second resin layer 222 has an extension 223, which is located at at least one of the following positions: between the first ink layer 211 and the second ink layer 212, between the first ink layer 211 and the transparent cover plate 11, and between the second ink layer 212 and the optical adhesive layer 13; wherein the extension 223 extends in a direction away from the display area 10, and the orthographic projection of the extension 223 on the transparent cover plate 11 and the orthographic projection of the first ink layer 211 on the transparent cover plate 11 at least partially overlap.

[0073] It should be noted that, since the transparent resin layer 22 has self-leveling properties (self-leveling refers to a liquid substance with a certain fluidity that diffuses freely into a horizontal plane under gravity and naturally solidifies into a material shape), when the first resin layer 221 and the first ink layer 211 are placed in the same layer (the first resin layer 221 and the first ink layer 211 are located on the same plane), and the second resin layer 222 and the second ink layer 212 are placed in the same layer (the second resin layer 222 and the second ink layer 212 are located on the same plane), the extension 223 formed by the first resin layer 221 and the second resin layer 222 under the action of self-leveling will penetrate into at least one of the following locations: between the first ink layer 211 and the second ink layer 212, between the first ink layer 211 and the transparent cover plate 11, and between the second ink layer 212 and the optical adhesive layer 13, thereby further blurring the boundary between the ink layer 21 and the transparent resin layer 22. It should also be noted that the extension 223 may be located between the first ink layer 211 and the second ink layer 212, or between the first ink layer 211 and the transparent cover plate 11, or between the second ink layer 212 and the optical adhesive layer 13. Alternatively, the extension 223 may be provided between the first ink layer 211 and the second ink layer 212, between the first ink layer 211 and the transparent cover plate 11, and between the second ink layer 212 and the optical adhesive layer 13. The embodiments of the present invention do not limit this.

[0074] Furthermore, regarding the aforementioned extension 223, it should be noted that when the first resin layer 221 and the first ink layer 211 are on the same plane, and the second resin layer 222 and the second ink layer 212 are on the same plane, there may be manufacturing errors in the first ink layer 211 and the second ink layer 212. These errors can lead to assembly gaps at the points where the first resin layer 221 and the first ink layer 211 are bonded (the boundary position), and at the points where the second resin layer 222 and the second ink layer 212 are bonded (the boundary position). These gaps, in turn, make the boundary line between the ink layer 21 and the transparent resin layer 22 more pronounced, affecting the consistency of the display module's appearance. In this case, the extension 223 can compensate for the assembly gaps at the points where the first resin layer 221 and the first ink layer 211 are bonded (the boundary position), and at the points where the second resin layer 222 and the second ink layer 212 are bonded (the boundary position), thereby further blurring the boundary line between the ink layer 21 and the transparent resin layer 22 and ensuring the consistency of the display module's appearance.

[0075] In one possible implementation of the above embodiments, such as Figure 5 , Figure 6 and Figure 7 As shown, when the extension 223 is located between the first ink layer 211 and the second ink layer 212, or when the extension 223 is located between the second ink layer 212 and the optical adhesive layer 13, the extension 223 and the second resin layer 222 cover a first portion of the second ink layer 212, the first portion being the portion of the second ink layer 212 close to the second resin layer 222.

[0076] It should be noted that, in this embodiment, since the extension 223 is located between the first ink layer 211 and the second ink layer 212, or between the second ink layer 212 and the optical adhesive layer 13, the assembly gap between the first ink layer 211 and the second ink layer 212, and the assembly gap between the second ink layer 212 and the optical adhesive layer 13, can be compensated by the extension 223. Then, the extension 223 and the second resin layer 222 cover the first part of the second ink layer 212, which can simultaneously compensate for the assembly gap between the second resin layer 222 and the second ink layer 212, thereby blurring the boundary line between the first ink layer 211 and the first resin layer 221. It should also be noted that the extension 223 and the second resin layer 222 cover the first part of the second ink layer 212. This can be understood as forming a receiving space between the extension 223, the second resin layer 222 and the optical adhesive layer 13 located in the non-display area 20 to accommodate the first part of the second ink layer 212, thereby allowing the first part of the second ink layer 212 to be accommodated within the receiving space.

[0077] In another possible implementation of the above embodiments, such as Figure 5 , Figure 8 and Figure 9 As shown, when the extension 223 is located between the first ink layer 211 and the second ink layer 212, or when the extension 223 is located between the first ink layer 211 and the transparent cover plate 11, the extension 223 and the first resin layer 221 cover a second portion of the first ink layer 211, and the second portion is the portion of the first ink layer 211 close to the first resin layer 221.

[0078] It should be noted that, in this embodiment, since the extension 223 is located between the first ink layer 211 and the second ink layer 212, or between the first ink layer 211 and the transparent cover plate 11, the assembly gap between the first ink layer 211 and the second ink layer 212, and the assembly gap between the first ink layer 211 and the transparent cover plate 11, can be filled by the extension 223. Then, the extension 223 and the first resin layer 221 cover the second part of the first ink layer 211, which can simultaneously fill the assembly gap between the first resin layer 221 and the first ink layer 211, thereby blurring the boundary line between the first ink layer 211 and the first resin layer 221. It should also be noted that the extension 223 and the first resin layer 221 cover the second part of the first ink layer 211. This can be understood as forming a receiving space between the extension 223, the second resin layer 222 and the optical adhesive layer 13 located in the non-display area 20 to accommodate the second part of the first ink layer 211, thereby allowing the second part of the first ink layer 211 to be accommodated in the receiving space.

[0079] In the above embodiments, it may also be as follows: Figure 10 As shown, when extension portions 223 are provided between the first ink layer 211 and the second ink layer 212, between the first ink layer 211 and the transparent cover plate 11, and between the second ink layer 212 and the optical adhesive layer 13, the extension portions 223 and the second resin layer 222 cover the first portion of the second ink layer 212, and the extension portions 223 and the first resin layer 221 cover the second portion of the first ink layer 211. The first portion is the portion of the second ink layer 212 that is close to the second resin layer 222, and the second portion is the portion of the first ink layer 211 that is close to the first resin layer 221.

[0080] It should be noted that, in this embodiment, since extensions 223 are provided between the first ink layer 211 and the second ink layer 212, between the first ink layer 211 and the transparent cover plate 11, and between the second ink layer 212 and the optical adhesive layer 13, the assembly gaps between the first ink layer 211 and the second ink layer 212, between the first ink layer 211 and the transparent cover plate 11, and between the second ink layer 212 and the optical adhesive layer 13 can all be compensated by the extensions 223. Simultaneously, in the direction perpendicular to the plane of the transparent cover plate 11, the second portion of the first ink layer 211 is located between two adjacent extensions 223, and the second portion of the second ink layer 212 is located between two adjacent extensions 223, thereby further blurring the boundary line between the ink layer 21 and the transparent adhesive layer. It should also be noted that the extension 223 and the second resin layer 222 cover the first portion of the second ink layer 212. This can be understood as forming a receiving space between adjacent extensions 223 and the second resin layer 222 to accommodate the first portion of the second ink layer 212, thereby allowing the first portion of the second ink layer 212 to be accommodated within this receiving space. Similarly, the extension 223 and the first resin layer 221 cover the second portion of the first ink layer 211. This can be understood as forming a receiving space between adjacent extensions 223 and the first resin layer 221 to accommodate the second portion of the first ink layer 211, thereby allowing the second portion of the first ink layer 211 to be accommodated within this receiving space.

[0081] Furthermore, in the above three embodiments, when the extension 223 is located between the first ink layer 211 and the second ink layer 212, and between the second ink layer 212 and the optical adhesive layer 13, a method of coating the ink layer 21 first and then coating the transparent resin layer 22 can be selected. Specifically, after the first ink layer 211 coated on the transparent cover plate 11 is baked and shaped, the first resin layer 221 is coated between the side of the first ink layer 211 near the display area 10 and the optical adhesive layer 13 located in the display area 10. After the first resin layer 221 is baked and shaped, the second ink layer 212 is coated on the surface of the first ink layer 211 away from the transparent cover plate 11 (i.e., the second ink layer 212 is covered on the first ink layer 211). After the second ink layer 212 is baked and shaped, the second resin layer 222 is coated between the side of the second ink layer 212 near the display area 10 and the optical adhesive layer 13 located in the display area 10, such that the second resin layer 222 covers the first resin layer 221. Conversely, when the extension 223 is located between the first ink layer 211 and the second ink layer 212, and between the first ink layer 211 and the transparent cover plate 11, a method of coating the transparent resin layer 22 first and then coating the ink layer 21 can be selected. Specifically, the first resin layer 221 can be coated on the transparent cover plate 11 first, and after the first resin layer 221 is baked and shaped, the first ink layer 211 is coated on the side of the first resin layer 221 away from the display area 10 (the first ink layer 211 is coated on the transparent resin layer 22). After the first ink layer 211 is baked and shaped, the second resin layer 222 is coated on the surface of the first resin layer 221 away from the transparent cover plate 11 (so that the second resin layer 222 covers the first resin layer 221). After the second resin layer 222 is baked and shaped, the second ink layer 212 is coated on the side of the second resin layer 222 away from the display area 10 (the second ink layer 212 is coated on the first ink layer 211).

[0082] In some embodiments of the aforementioned double-layer ink layer 21, the first ink layer 211 and the first resin layer 221 are located on the same plane. This ensures that the end face of the first resin layer 221 in the direction parallel to the transparent cover plate 11 completely covers the end face of the first ink layer 211 in the same direction, thus ensuring that there is no discontinuity at the boundary between the first resin layer 221 and the first ink layer 211. Similarly, the second ink layer 212 and the second resin layer 222 are located on the same plane. This ensures that the end face of the second resin layer 222 in the direction parallel to the transparent cover plate 11 completely covers the end face of the second ink layer 212 in the same direction, thus ensuring that there is no discontinuity at the boundary between the second resin layer 222 and the second ink layer 212.

[0083] Furthermore, the ends of the first ink layer 211 away from the first resin layer 221 and the ends of the second ink layer 212 away from the second resin layer 222 are aligned in a direction perpendicular to the plane of the transparent cover plate 11; the sum of the area of ​​the orthographic projection of the first ink layer 211 on the transparent cover plate and the area of ​​the orthographic projection of the first resin layer 221 on the transparent cover plate 11 is the first area; the sum of the area of ​​the orthographic projection of the second ink layer 212 on the transparent cover plate and the area of ​​the orthographic projection of the second resin layer 222 on the transparent cover plate 11 is the second area, wherein the first area is equal to the second area.

[0084] It should be noted that, under the premise that the first ink layer 211 and the first resin layer 221 are located on the same plane, the second ink layer 212 and the second resin layer 222 are located on the same plane, and the ends of the first ink layer 211 away from the first resin layer 221 and the ends of the second ink layer 212 away from the second resin layer 222 are aligned in a direction perpendicular to the plane of the transparent cover plate 11, the sum of the area of ​​the orthographic projection of the first ink layer 211 on the transparent cover plate 11 and the area of ​​the orthographic projection of the first resin layer 221 on the transparent cover plate 11 is equal to the sum of the area of ​​the orthographic projection of the second ink layer 212 on the transparent cover plate 11 and the area of ​​the orthographic projection of the second resin layer 222 on the transparent cover plate 11. Therefore, the boundary line between the first resin layer 221 and the optical adhesive layer 13 located in the display area 10, and the boundary line between the second resin layer 222 and the optical adhesive layer 13 located in the display area 10 are the same straight line, thereby avoiding the intersection of the boundary lines between the display area 10 and the non-display area 20, and thus reducing the uniformity of the display module surface.

[0085] Optionally, the dimension of the first ink layer 211 in the first direction is equal to the dimension of the first resin layer 221 in the first direction; the dimension of the second ink layer 212 in the first direction is equal to the dimension of the second resin layer 222 in the first direction; wherein, the first direction is the direction perpendicular to the plane where the transparent cover plate 11 is located. In this way, while ensuring that the end face of the first resin layer 221 in the direction parallel to the transparent cover plate 11 can completely cover the end face of the first ink layer 211 in the direction parallel to the transparent cover plate 11, and ensuring that the end face of the second resin layer 222 in the direction parallel to the transparent cover plate 11 can completely cover the end face of the second ink layer 212 in the direction parallel to the transparent cover plate 11, it is possible to avoid the presence of steps between the first ink layer 211 and the first resin layer 221 due to the height difference, and it is also possible to avoid the presence of steps between the second ink layer 212 and the second resin layer 222 due to the height difference, thereby further ensuring the consistency of the display module surface.

[0086] Furthermore, the dimensions of the first ink layer 211 and the second ink layer 212 in the first direction are greater than or equal to 4 micrometers. Since the dimensions of the transparent resin layer 22 in the first direction can be compressed to 200 nanometers, they are negligible compared to the dimensions of the first ink layer 211 and the second ink layer 212 in the first direction, which are greater than or equal to 4 micrometers. Therefore, when coating the transparent resin layer 22, it is possible to cover part or all of the plane containing the ink layer 21 after the first ink layer 211 has been baked and set, which makes it easier to add the transparent resin layer 22.

[0087] In some embodiments, in the non-display area 20 located in the middle of the display area 10, the polarizer 12, the ink layer 21, and the optical adhesive layer 13 are all provided with through holes; the orthographic projections of the through holes in the polarizer 12, the through holes in the ink layer 21, and the through holes in the optical adhesive layer 13 on the transparent cover plate 11 at least partially overlap; wherein, the area of ​​the orthographic projections of the ink layer 21 and the transparent resin layer 22 on the transparent cover plate 11 is larger than the area of ​​the orthographic projection of the optical adhesive layer 13 on the transparent cover plate 11 in the non-display area 20.

[0088] It should be noted that the through holes in the polarizer 12, ink layer 21, and optical adhesive layer 13 can be used to place cameras, sensors, infrared detectors, and other optical devices, thereby preventing the ink layer 21 from blocking light. Simultaneously, because cameras, sensors, infrared detectors, and other optical devices are placed there, the end of the ink layer 21 near the through hole extends into the through hole of the optical adhesive layer 13, thus facilitating light convergence from one side of the transparent cover plate 11.

[0089] As can be seen from the above embodiments, in the embodiments of the present invention, since the optical adhesive layer 13 located in the non-display area 20 and the transparent cover plate 11 are connected by an ink layer 21 and a transparent resin layer 22, and the transparent resin layer 22 is filled between the ink layer 21 on the side near the display area 10 and the optical adhesive layer 13 located in the display area 10, the space between the transparent cover plate 11 and the optical adhesive layer 13 in the non-display area 20 is not only filled with an ink layer 21, but also with a transparent resin layer 22. Furthermore, since the ink layer 21 and the transparent resin layer 22 are disposed in the same layer, and the orthographic projection of the ink layer 21 on the transparent cover plate 11 and the orthographic projection of the optical adhesive layer 13 located in the non-display area on the transparent cover plate 11 partially overlap, and the orthographic projection of the transparent resin layer 22 on the transparent cover plate 11 and the orthographic projection of the optical adhesive layer 13 located in the non-display area on the transparent cover plate 11 partially overlap, both the ink layer 21 and the transparent resin layer 22 are in contact with the optical adhesive layer 13 in the non-display area 20. That is, the optical adhesive layer 13 in the non-display area 20 is not only overlapped with the ink layer 21, but also overlapped with the transparent resin layer 22. This increases the amount of overlap between the filling material between the transparent cover plate 11 and the optical adhesive layer 13 in the non-display area 20 and the optical adhesive layer 13. This ensures that there is no gap between the side of the ink layer 21 near the display area 10 and the optical adhesive layer 13 located in the display area 10, thus preventing air bubbles from appearing between the side of the ink layer 21 near the display area 10 and the optical adhesive layer 13 located in the display area 10. In this way, even when the display module is used on a narrow-bezel display device, reducing the overlap between the ink layer 21 filling the space between the transparent cover plate 11 and the optical adhesive layer 13, the overlap between the material filling the space between the transparent cover plate 11 and the optical adhesive layer 13 in the non-display area 20 and the optical adhesive layer 13 can still be ensured by the transparent resin layer 22 filling the space between the ink layer 21 near the display area 10 and the optical adhesive layer 13 located in the display area 10. This reduces the risk of air bubbles appearing between the ink layer 21 near the display area 10 and the optical adhesive layer 13 located in the display area 10, thereby ensuring the display effect of the display module.

[0090] This invention also provides a display device, including any of the above-mentioned display modules; the display device in this embodiment may be, but is not limited to, OLED (Organic Light Emitting Diode), QLED (Quantum Dot Light Emitting Diode), mini LED, and other display devices.

[0091] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0092] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A display module, characterized by The display module includes: The display area, and the non-display area located around or in the center of the display area; The display area and the non-display area include a transparent cover plate and a polarizer stacked together, and the transparent cover plate and the polarizer are connected by an optical adhesive layer; An ink layer and a transparent resin layer are overlapped between the optical adhesive layer located in the non-display area and the transparent cover plate. The transparent resin layer fills the space between the ink layer on the side near the display area and the optical adhesive layer located in the display area. The ink layer and the transparent resin layer are disposed in the same layer, and the orthographic projection of the ink layer on the transparent cover plate and the orthographic projection of the optical adhesive layer located in the non-display area on the transparent cover plate partially overlap, and the orthographic projection of the transparent resin layer on the transparent cover plate and the orthographic projection of the optical adhesive layer located in the non-display area on the transparent cover plate partially overlap. The number of ink layers overlapping between the optical adhesive layer and the transparent cover plate in the non-display area is at least one; when the number of ink layers between the optical adhesive layer and the transparent cover plate in the non-display area is two, the ink layer includes a first ink layer and a second ink layer stacked together, and the transparent resin layer includes a first resin layer and a second resin layer. The first layer of ink overlaps between the transparent cover plate and the second layer of ink, and the second layer of ink overlaps between the optical adhesive layer and the first layer of ink; The first resin layer is located between the side of the first ink layer near the display area and the optical adhesive layer located within the display area; The second resin layer is located between the side of the second ink layer closest to the display area and the optical adhesive layer located within the display area; At least one of the first resin layer and the second resin layer has an extension, which is located at at least one of the following positions: between the first ink layer and the second ink layer, between the first ink layer and the transparent cover plate, and between the second ink layer and the optical adhesive layer; The extension extends away from the display area, and the orthographic projection of the extension on the transparent cover plate and the orthographic projection of the first layer of ink on the transparent cover plate at least partially overlap.

2. The display module of claim 1, wherein, The orthographic projection of the second layer of ink on the transparent cover plate and the orthographic projection of the first layer of ink on the transparent cover plate partially overlap.

3. The display module of claim 1, wherein, The area of ​​the second layer of ink projected onto the transparent cover is smaller than the area of ​​the first layer of ink projected onto the transparent cover.

4. The display module of claim 1, wherein, When the extension is located between the first ink layer and the second ink layer, or when the extension is located between the second ink layer and the optical adhesive layer, the extension and the second resin layer cover a first portion of the second ink layer, the first portion being the portion of the second ink layer close to the second resin layer.

5. The display module of claim 1, wherein, When the extension is located between the first ink layer and the second ink layer, or when the extension is located between the first ink layer and the transparent cover plate, the extension and the first resin layer cover a second portion of the first ink layer, the second portion being the portion of the first ink layer close to the first resin layer.

6. The display module of claim 1, wherein, When the extension is provided between the first layer of ink and the second layer of ink, between the first layer of ink and the transparent cover plate, and between the second layer of ink and the optical adhesive layer, the extension and the second resin layer cover a first portion of the second layer of ink, and the extension and the first resin layer cover a second portion of the first layer of ink, wherein the first portion is the portion of the second layer of ink close to the second resin layer, and the second portion is the portion of the first layer of ink close to the first resin layer.

7. The display module of claim 3, wherein, The first ink layer and the first resin layer are located on the same plane; The second ink layer and the second resin layer are located on the same plane.

8. The display module of claim 7, wherein, The ends of the first ink layer away from the first resin layer and the ends of the second ink layer away from the second resin layer are flush in a direction perpendicular to the plane of the transparent cover plate; The sum of the area of ​​the orthographic projection of the first layer of ink on the transparent cover and the area of ​​the orthographic projection of the first resin layer on the transparent cover is the first area; The sum of the area of ​​the orthographic projection of the second layer of ink on the transparent cover and the area of ​​the orthographic projection of the second resin layer on the transparent cover is the second area, wherein the first area is equal to the second area.

9. The display module of claim 7, wherein, The dimension of the first ink layer in the first direction is equal to the dimension of the first resin layer in the first direction; The dimension of the second ink layer in the first direction is equal to the dimension of the second resin layer in the first direction; Wherein, the first direction is the direction perpendicular to the plane where the transparent cover plate is located.

10. The display module of claim 7, wherein, The dimensions of the first layer of ink in the first direction and the dimensions of the second layer of ink in the first direction are greater than or equal to 4 micrometers; wherein, the first direction is the direction perpendicular to the plane of the transparent cover plate.

11. The display module of claim 1, wherein, In the non-display area located in the middle of the display area, the polarizer, the ink layer, and the optical adhesive layer are all provided with through holes; The orthographic projections of the through holes in the polarizer, the through holes in the ink layer, and the through holes in the optical adhesive layer onto the transparent cover plate at least partially overlap. The area of ​​the ink layer and the transparent resin layer projected onto the transparent cover is greater than the area of ​​the optical adhesive layer projected onto the transparent cover in the non-display area.

12. A display device comprising: The display module includes any one of claims 1 to 11.

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