Display module, preparation method thereof and display device

Abstract

The invention provides a display module and a preparation method thereof and a display device, the display module comprises a display substrate and a shading structure, and the display substrate is divided into a display area, a hole area and a transition area located between the display area and the hole area. The shading structure is arranged on the display substrate and located in the transition area, the shading structure defines a first via hole, the first via hole is located in the hole area, and the orthographic projection of the first via hole on the display substrate coincides with the hole area. According to the display module, the first via hole is defined by the shading structure, and cover plate ink does not need to be designed, so that the adverse effect of tolerance of the cover plate ink on a narrow frame of a hole frame is avoided.

Description

Technical Field

[0001] The present disclosure relates to the field of display technology, and in particular, to a display module and a preparation method thereof, and a display device. Background Art

[0002] In order to achieve a narrow bezel design, the various film layers and components of the display module need to fit closely together. However, the existence of manufacturing tolerances requires a certain amount of space to be reserved during the design and production process to accommodate these tolerances, which results in an increase in the bezel width and affects the appearance and screen-to-body ratio of the display module. For example, the quality of the hole bezel of the display module depends to a large extent on the accuracy of the module bonding. Because during the bonding process, the various components need to be precisely aligned, especially around the hole area, it must be ensured that the cover ink does not block the display area. However, due to the influence of the tolerance of the cover ink, a certain amount of space needs to be reserved, which is not conducive to achieving a narrow hole bezel. Summary of the invention

[0003] The present disclosure provides a display module, a preparation method thereof and a display device, wherein a first via hole is defined by a light-shielding layer, which not only eliminates the ink layer, thereby improving the problem that the ink tolerance is not conducive to achieving a narrow frame, but also can adjust the size of the transition zone by controlling the size of the light-shielding layer corresponding to the transition zone, which is conducive to achieving a narrow frame of the hole frame.

[0004] In a first aspect, the present disclosure provides a display module, which includes a display substrate and a shading structure, wherein the display substrate has a display area, a hole area, and a transition area between the display area and the hole area. The shading structure is disposed on the display substrate and is located in the transition area, and the shading structure defines a first via hole, the first via hole is located in the hole area, and the orthographic projection of the first via hole on the display substrate coincides with the hole area.

[0005] In the above scheme, the shading structure can replace the cover ink and improve the light leakage problem of the hole frame in the display module. Therefore, there is no need to set the cover ink, thereby avoiding the deviation of the cover ink having an adverse effect on the realization of a narrow frame of the hole frame, and also avoiding the problem of leakage or blocking of the display area due to the fitting deviation of the cover ink layer.

[0006] In a specific implementation of the first aspect of the present disclosure, the display module further comprises an optical adhesive layer, which is disposed on the display substrate and located on a side of the light shielding structure away from the first via hole.

[0007] In the above solution, the light shielding structure can also block the path for ions in the optical adhesive layer to invade the display function layer of the display module, thereby improving the reliability of the display module.

[0008] Optionally, the orthographic projection of the optical adhesive layer on the display substrate covers the display area and a portion of the transition area.

[0009] In a specific embodiment of the first aspect of the present disclosure, the display module further comprises a polarizer, which is located between the optical adhesive layer and the display substrate and defines a second via hole, wherein the orthographic projection of the second via hole on the display substrate coincides with the orthographic projection of the first via hole on the display substrate.

[0010] In a specific implementation of the first aspect of the present disclosure, the display module further comprises a polarizer, which is disposed on the display substrate and located on a side of the light shielding structure away from the first via hole.

[0011] In the above solution, the shading structure can also block the path for ions in the polarizer to invade the display function layer of the display module, thereby improving the reliability of the display module.

[0012] Optionally, the orthographic projection of the polarizer on the display substrate covers the display area and a portion of the transition area.

[0013] In a specific embodiment of the first aspect of the present disclosure, the display module also includes an optical adhesive layer, which is located on the side of the polarizer away from the display substrate. The optical adhesive layer defines a third via hole, and the orthographic projection of the third via hole on the display substrate coincides with the orthographic projection of the first via hole on the display substrate.

[0014] In a specific embodiment of the first aspect of the present disclosure, the display module further comprises a polarizer and an optical adhesive layer. The polarizer is disposed on the display substrate and is located on a side of the light shielding structure away from the first via hole. The optical adhesive layer is located on a side of the polarizer away from the display substrate and on a side of the light shielding structure away from the first via hole.

[0015] In the above scheme, the shading structure is conducive to narrowing the hole frame, avoiding light leakage in the hole frame area due to fitting deviation or the cover plate ink blocking the display area, and can also block the path for ions in the polarizer and optical adhesive layer to invade the display function layer of the display module, thereby improving the reliability of the display module.

[0016] Optionally, the polarizer covers the display area and a portion of the transition area, and / or the optical adhesive layer covers the display area and a portion of the transition area.

[0017] Optionally, the orthographic projection of the polarizer on the display substrate coincides with the orthographic projection of the optical adhesive layer on the display substrate.

[0018] In a specific embodiment of the first aspect of the present disclosure, the light shielding structure includes a black organic material. Thus, compared with traditional ink materials, the light shielding structure is made of black organic material, which can enhance the integrated black effect of the display module and improve the user experience.

[0019] In a specific embodiment of the first aspect of the present disclosure, the display substrate further includes a frame area surrounding the display area. The display substrate further includes a cover plate and an ink layer. The cover plate is located on the side of the light shielding structure away from the display substrate, and the cover plate covers the display area, the frame area, the hole area and the transition area of ​​the display substrate. The ink layer is arranged between the cover plate and the light shielding structure, and the orthographic projection of the ink layer on the display substrate is located in the frame area, and not in the transition area.

[0020] A second aspect of the present disclosure provides a method for preparing a display module, the method comprising providing a display substrate, the display substrate having a display area, a hole area, and a transition area between the display area and the hole area; forming a shading structure on one side of the display substrate, the shading structure covering the hole area and at least part of the transition area; performing a hole digging process on the hole area of ​​the display substrate, and simultaneously removing the portion of the shading structure overlapping with the hole area, so as to form a first via hole in the shading structure, the first via hole overlapping with the hole area.

[0021] In the above scheme, the display module obtained by the preparation method can avoid the tolerance of the cover plate ink and the fitting tolerance problem, and can avoid the problem of light leakage or obstruction of the display area in the hole frame area after the hole frame is narrowed.

[0022] A third aspect of the present disclosure provides a display device, which includes the display module in the first aspect or the display module obtained by the preparation method of the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic plan view of a display module provided by an embodiment of the present disclosure.

[0024] Figure 2 An embodiment of the present disclosure provides Figure 1 A schematic cross-sectional view of the M1N1 direction of a display module.

[0025] Figure 3 An embodiment of the present disclosure provides Figure 1 A schematic cross-sectional view of the M1N1 direction of a display module.

[0026] Figure 4 An embodiment of the present disclosure provides Figure 1 An enlarged view of point A in a cross-sectional schematic diagram showing the module in the M1N1 direction.

[0027] Figure 5 An embodiment of the present disclosure provides Figure 1 Another cross-sectional schematic diagram of the display module in the M1N1 direction is an enlarged view of point A.

[0028] Figure 6 An embodiment of the present disclosure provides Figure 1Another schematic cross-sectional view of the M1N1 direction of the display module.

[0029] Figure 7 An embodiment of the present disclosure provides Figure 1 Another enlarged view of point B in the cross-sectional schematic diagram of the M1N1 direction of the display module.

[0030] Figure 8 An embodiment of the present disclosure provides Figure 1 Another schematic cross-sectional view of the M1N1 direction of the display module.

[0031] Fig. 9 An embodiment of the present disclosure provides Figure 1 Another schematic cross-sectional view of the M1N1 direction of the display module.

[0032] Fig.10 An embodiment of the present disclosure provides Figure 1 Another schematic cross-sectional view of the M1N1 direction of the display module.

[0033] Fig.11 An embodiment of the present disclosure provides Figure 1 A schematic cross-sectional view of the M2N2 direction of a display module.

[0034] Fig.12 An embodiment of the present disclosure provides Figure 1 A schematic diagram of a process for preparing a display module.

[0035] Fig.13 An embodiment of the present disclosure provides Figure 1 A schematic diagram of another method for preparing a display module.

[0036] Reference numerals:

[0037] 100-display substrate; 110-display area; 120-hole area; 130-transition area; 140-frame area; V1-first via hole; V2-second via hole; V3-third via hole; 200-light-shielding structure; 210-first light-shielding structure; 220-second light-shielding structure; 300-optical adhesive layer; 400-polarizer; 500-cover plate; 600-ink layer. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0039] If the cover ink exceeds the design range during the lamination process and spreads to the display area, it will block the light emission of the pixels and cause defects in the displayed content. For example, around the front camera of the mobile phone screen, if the cover ink covers some pixels, then when the picture is displayed, these covered pixels will not work properly, and black spots or dark areas may appear, affecting the visual experience. In order to reduce the risk of the ink layer blocking the display area, a certain amount of space will be reserved on the basis of the size of the transition zone between the original display area and the hole area to reduce the impact of the tolerance of the cover ink size on the display effect, that is, to reduce the risk of the cover ink exceeding the design range. However, this is not conducive to achieving a narrow hole frame.

[0040] In view of this, the embodiments of the present disclosure provide a display module, a preparation method and a display device, wherein the display module includes a display substrate and a light-shielding structure. The display substrate has a display area, a hole area and a transition area between the display area and the hole area. The light-shielding structure is disposed on the display substrate and is located in the transition area. The light-shielding structure defines a first via hole, and the first via hole is located in the hole area and coincides with the hole area. In this way, the light-shielding structure defines the first via hole, which can avoid the problem of light leakage or blocking the display area due to the offset of the cover ink. In addition, because the cover ink is not required, when considering the size of the transition area, i.e., the hole frame, there is no need to reserve the space required for the tolerance of the cover ink size, which is conducive to achieving a narrow frame of the hole frame.

[0041] Hereinafter, a display module, a manufacturing method and a display device according to at least one embodiment of the present disclosure will be described in conjunction with the accompanying drawings.

[0042] For example, Figure 1 and Figure 2 As shown, the display module includes a display substrate 100 and a shading structure 200. The display substrate 100 has a display area 110, a hole area 120 and a transition area 130. The position of the hole area 120 can form a via hole corresponding to the position of the hole area 120, and a camera or sensor and other equipment can be installed. The shading structure 200 is arranged on the display substrate 100, and the orthographic projection of the shading structure 200 on the display substrate 100 falls on the transition area 130 of the display substrate 100. The shading structure 200 defines a first via hole V1, and the orthographic projection of the first via hole V1 on the display substrate 100 coincides with the hole area 120 of the display substrate 100.

[0043] It should be noted that the structure of the display module disclosed in the present invention is not limited to the above examples. For example, the first via hole V1 can be arranged as follows: Figure 1As shown, it is centered on the display module, and can also be set in the upper left corner or the upper right corner. The size and shape of the first via hole V1 are not limited to those shown in the figure, and can be designed according to actual needs. For example, the display substrate 100 may include a substrate and a display function layer. When the hole digging process is performed on the corresponding area of ​​the hole area 120, the substrate can be dug through, or the display function layer can be dug through, and then a transparent substrate is used. The substrate can be a hard substrate, such as a glass substrate, or a flexible substrate, and its material can be polyimide, polystyrene, polyethylene terephthalate, polyparaxylene, polyether sulfone or polyethylene naphthalate. The substrate is mainly used to support the device arranged thereon, and can be multi-layer. All of the above can be designed according to actual needs, and will not be repeated here.

[0044] In a display module provided by an embodiment of the present disclosure, the display module further includes an optical adhesive layer 300. The optical adhesive layer 300 is disposed on the display substrate 100 and is located on a side of the light shielding structure 200 away from the first via hole V1. In this way, the light shielding structure 200 can also block the path of ions in the optical adhesive layer 300 from invading the display function layer of the display module, thereby improving the reliability of the display module.

[0045] Based on the above embodiments, in the display module provided by at least one embodiment of the present disclosure, the orthographic projection of the optical adhesive layer 300 on the display substrate 100 covers the display area 110 and a portion of the transition area 130 .

[0046] For example, Figure 3 As shown, the display module includes a display substrate 100 and a light shielding structure 200 and an optical adhesive layer 300 disposed on the display substrate 100. The orthographic projection of the light shielding structure 200 on the display substrate 100 falls on the transition area 130 of the display substrate 100, and the orthographic projection of the first via hole V1 defined by the light shielding structure 200 on the display substrate 100 coincides with the hole area 120 of the display substrate 100. The orthographic projection of the optical adhesive layer 300 on the display substrate 100 is away from the hole area 120 relative to the orthographic projection of the light shielding structure 200 on the display substrate 100. For example, the orthographic projection of the optical adhesive layer 300 on the display substrate 100 falls on the covered display area 110 and part of the transition area 130. The optical adhesive layer 300 is used to firmly bond some film layers such as the cover plate 500 to the body of the display substrate 100 to ensure close bonding between them and maintain the structural integrity of the display module. By adjusting the size of the optical adhesive layer 300 corresponding to the transition area 130 of the display substrate 100 and the size of the light shielding structure 200 corresponding to the transition area 130 , a narrow hole frame of the first via hole V1 can be achieved.

[0047] In addition to the light shielding layer and the optical adhesive layer 300 , the display module may also include other structures.

[0048] For example, in a display module provided in one embodiment of the present disclosure, the display module also includes a polarizer 400, wherein the polarizer 400 is located between the optical adhesive layer 300 and the display substrate 100 and defines a second via hole V2, and the orthographic projection of the second via hole V2 on the display substrate 100 coincides with the orthographic projection of the first via hole V1 on the display substrate 100.

[0049] For example, Figure 4 As shown, the display module includes a display substrate 100, a polarizer 400, an optical adhesive layer 300 and a light shielding structure 200. The polarizer 400 is disposed on the display substrate 100 and covers the display area 110 and the transition area 130 of the display substrate 100. The optical adhesive layer 300 is disposed on the side of the polarizer 400 away from the display substrate 100 and covers the display area 110 and part of the transition area 130 of the display substrate 100. The light shielding structure 200 and the optical adhesive layer 300 are disposed on the side of the polarizer 400 away from the display substrate 100, and the light shielding structure 200 covers the transition area 130 of the display substrate 100 and is closer to the hole area 120 of the display substrate 100 than the optical adhesive layer 300. The light shielding structure 200 defines a first via hole V1, and the orthographic projection of the first via hole V1 on the display substrate 100 coincides with the hole area 120 on the display substrate 100. The polarizer 400 defines a second via hole V2 , which is connected to the first via hole V1 , and an orthographic projection of the second via hole V2 on the display substrate 100 coincides with the hole area 120 .

[0050] Different from the designs of the light shielding structure 200 and the optical adhesive layer 300 in the above embodiments, the display module may also include other designs.

[0051] For example, in a display module provided in another embodiment of the present disclosure, the display module further includes a polarizer 400. The polarizer 400 is disposed on the display substrate 100 and is located on a side of the light shielding structure 200 away from the first via hole V1. In this way, the light shielding structure 200 can replace the ink of the cover plate 500 without affecting the realization of a narrow hole frame, and can also block the ions in the edge of the polarizer 400 from entering the display function layer of the display substrate 100, avoiding problems that affect the display effect, thereby improving the reliability of the display module.

[0052] In the display module provided by at least one embodiment of the present disclosure, the orthographic projection of the polarizer 400 on the display substrate 100 covers the display area 110 and a portion of the transition area 130 .

[0053] For example, Figure 5As shown, the display module includes a display substrate 100, a light shielding structure 200 and a polarizer 400. The light shielding structure 200 and the polarizer 400 are both arranged on the display substrate 100. The orthographic projection of the light shielding structure 200 on the display substrate 100 falls on the transition zone 130 of the display substrate 100. The light shielding structure 200 defines a first via hole V1, and the orthographic projection of the first via hole V1 on the display substrate 100 coincides with the hole zone 120. The polarizer 400 is arranged on a side of the light shielding structure 200 away from the hole zone 120, and the orthographic projection of the polarizer 400 on the display substrate 100 covers the display zone 110 and part of the transition zone 130 of the display substrate 100. By controlling the size of the portion of the polarizer 400 corresponding to the transition zone 130 and the size of the light shielding structure 200, the size of the hole frame can be controlled, which is conducive to achieving a narrow hole frame.

[0054] In addition to the display substrate 100 , the light shielding structure 200 and the polarizer 400 in the above embodiment, the display module also includes other structures.

[0055] For example, in the display module provided by at least one embodiment of the present disclosure, the display module further includes an optical adhesive layer 300. The optical adhesive layer 300 is located on the side of the polarizer 400 away from the display substrate 100, and the optical adhesive layer 300 defines a third via hole V3, and the orthographic projection of the third via hole V3 on the display substrate 100 coincides with the orthographic projection of the first via hole V1 on the display substrate 100.

[0056] For example, Figure 6 As shown, the display module includes a display substrate 100, a light shielding structure 200, a polarizer 400 and an optical adhesive layer 300. The light shielding structure 200 defines a first via hole V1 and is in the same layer as the polarizer 400. Both are arranged on the display substrate 100, and the polarizer 400 is arranged on the side of the light shielding structure 200 away from the first via hole V1. The optical adhesive layer 300 is arranged on the side of the polarizer 400 and the light shielding structure 200 away from the display substrate 100, and the orthographic projection of the optical adhesive layer 300 on the display substrate 100 covers the display area 110 and the transition area 130. The optical adhesive layer 300 is provided with a third via hole V3, which is away from the display substrate 100 relative to the first via hole V1 and is connected to the first via hole V1, and the orthographic projections of the third via hole V3 and the first via hole V1 on the display substrate 100 coincide.

[0057] Different from the structures of the light shielding structure 200 and the optical adhesive layer 300 or the polarizer 400 in the display module in the above embodiments, the display module also includes other structures.

[0058] For example, in a display module provided in another embodiment of the present disclosure, the display module further includes a polarizer 400 and an optical adhesive layer 300. The polarizer 400 is disposed on the display substrate 100 and is located on the side of the light shielding structure 200 away from the first via hole V1. The optical adhesive layer 300 is located on the side of the polarizer 400 away from the display substrate 100 and on the side of the light shielding structure 200 away from the first via hole V1. The light shielding structure 200 includes a first light shielding structure 210 and a second light shielding structure 220, the first light shielding structure 210 is located on one side of the polarizer 400, and the second light shielding structure 220 is located on one side of the optical adhesive layer 300. In this way, the light shielding structure 200 corresponding to the polarizer 400 and the optical adhesive layer 300 is not only conducive to realizing a narrow frame of the hole frame, but also blocks the path of ions in the polarizer 400 and the optical adhesive layer 300 invading the display function layer of the display substrate 100, thereby improving the reliability of the display module.

[0059] For example, Figure 7 As shown, the display module includes a display substrate 100, a light shielding structure 200, a polarizer 400 and an optical adhesive layer 300. The polarizer 400 is arranged on the display substrate 100, and the optical adhesive layer 300 is arranged on the side of the polarizer 400 away from the display substrate 100. The light shielding structure 200 defines a first via hole V1, and the optical adhesive layer 300 and the polarizer 400 are away from the first via hole V1 relative to the light shielding structure 200. Specifically, the light shielding structure 200 includes a first light shielding structure 210 corresponding to the polarizer 400 and a second light shielding structure 220 corresponding to the optical adhesive layer 300, and the orthographic projections of the first light shielding structure 210 and the second light shielding structure 220 on the display substrate 100 fall on the transition zone 130 of the display substrate 100, and the orthographic projections of the two coincide.

[0060] In the display module provided in at least one embodiment of the present disclosure, the first light shielding structure 210 and the second light shielding structure 220 are integrally formed.

[0061] For example, Figure 8 As shown, the shading structure 200 corresponding to the optical adhesive layer 300 and the polarizer 400 is an integrated structure, that is, the first shading structure 210 and the second shading structure 220 are an integrally formed structure, which not only simplifies the production process of the display module, but also improves the structural stability of the display module because the integrally formed first shading structure 210 and the second shading structure 220 are tightly fitted together.

[0062] In the flexible display module provided by at least one embodiment of the present disclosure, the polarizer 400 covers the display area 110 and a portion of the transition area 130 , and / or the optical adhesive layer 300 covers the display area 110 and a portion of the transition area 130 .

[0063] For example, Fig. 9As shown, the display module includes a display substrate 100, a polarizer 400, an optical adhesive layer 300 and a light shielding structure 200. The light shielding structure 200 defines a first via hole V1. The polarizer 400 and the optical adhesive layer 300 are respectively located on the side of the light shielding structure 200 away from the first via hole V1, and the light shielding structure 200, the optical adhesive layer 300 and the polarizer 400 are correspondingly arranged. The orthographic projections of the polarizer 400 and the optical adhesive layer 300 on the display substrate 100 respectively cover the display area 110 and part of the transition area 130 of the display module, and the orthographic projection of the polarizer 400 on the display substrate 100 covers the orthographic projection of the optical adhesive layer 300 on the display substrate 100.

[0064] For example, Fig.10 As shown, different from the display module in the above example, in this display module, the orthographic projections of the polarizer 400 and the optical adhesive layer 300 on the display substrate 100 respectively cover the display area 110 and part of the transition area 130 of the display module, and the orthographic projection of the optical adhesive layer 300 on the display substrate 100 covers the orthographic projection of the polarizer 400 on the display substrate 100. For other structures of the display module, refer to the above example and will not be described in detail here.

[0065] In the flexible display module provided by at least one embodiment of the present disclosure, the orthographic projection of the polarizer 400 on the display substrate 100 coincides with the orthographic projection of the optical adhesive layer 300 on the display substrate 100 .

[0066] For example, Figure 7 and Figure 8 As shown, in the display module, the orthographic projections of the polarizer 400 and the optical adhesive layer 300 on the display substrate 100 respectively cover the display area 110 and part of the transition area 130 of the display module, and the orthographic projection of the optical adhesive layer 300 on the display substrate 100 coincides with the orthographic projection of the polarizer 400 on the display substrate 100. For other structures of the display module, reference can be made to the above examples and will not be repeated here.

[0067] In a display module provided in an embodiment of the present disclosure, the shading structure 200 includes a black organic material. The black organic material includes but is not limited to a black organic glue. The shading structure 200 composed of the black organic material has a stronger light absorption ability than the ink of the cover plate 500, can effectively absorb light, reduce reflection and scattering, so that the color of the display module screen can be darker and closer to completely black when the screen is off, thereby reducing the color difference between the visible area and the non-visible area, and achieving a better integrated black visual effect.

[0068] In a display module provided in an embodiment of the present disclosure, Fig.11As shown, the display substrate 100 further includes a frame area 140 surrounding the display area 110. The display substrate 100 further includes a cover plate 500 and an ink layer 600. The cover plate 500 is located on the side of the light shielding structure 200 away from the display substrate 100, and the cover plate 500 covers the display area 110, the frame area 140, the hole area 120 and the transition area 130 of the display substrate 100. The ink layer 600 is disposed between the cover plate 500 and the light shielding structure 200, and the orthographic projection of the ink layer 600 on the display substrate 100 falls on the frame area 140.

[0069] The present disclosure also provides a method for preparing a display module. Fig.12 and Fig.13 As shown, the preparation method includes providing a display substrate 100, the display substrate 100 having a display area 110, a hole area 120 and a transition area 130 located between the display area 110 and the hole area 120; forming a shading structure 200 on one side of the display substrate 100, the shading structure 200 covering the hole area 120 and at least a portion of the transition area 130; performing a hole digging process on the hole area 120 of the display substrate 100, and simultaneously removing the portion of the shading structure 200 overlapping with the hole area 120, so as to form a first via hole V1 in the shading structure 200, and the first via hole V1 overlaps with the hole area 120.

[0070] For example, Fig.12 As shown, the method for preparing the display module comprises the following steps:

[0071] Step S100: the display substrate has a display area, a hole area, and a transition area between the display area and the hole area.

[0072] Step S200: forming a light shielding structure on one side of the display substrate, wherein the light shielding structure covers the hole area and at least a portion of the transition area.

[0073] Step S300: performing a hole-digging process on the hole area of ​​the display substrate, and simultaneously removing the portion of the light-shielding structure overlapping with the hole area, so as to form a first via hole in the light-shielding structure, wherein the first via hole overlaps with the hole area.

[0074] The embodiment of the present disclosure further provides a display device, which includes the display module in the above embodiment.

[0075] In an embodiment of the present disclosure, the display device may be an organic light emitting diode display device, a liquid crystal display device, an electronic paper display device, or the like.

[0076] For example, the display device in the embodiments of the present disclosure may be any product or component with a display function, such as a television, a digital camera, a mobile phone, a watch, a tablet computer, a laptop computer, a navigator, or the like.

[0077] It should be noted that the embodiments of the present disclosure do not describe all structures of the above-mentioned display module. To realize the necessary functions of the display module, those skilled in the art may set other structures according to specific application scenarios.

[0078] The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure. Any modifications, equivalent substitutions, etc. made within the spirit and principles of the present disclosure should be included in the protection scope of the present disclosure.

Claims

1. A display module, characterized in that: include: A display substrate having a display area, a hole area, and a transition area between the display area and the hole area; as well as The shading structure is arranged on the display substrate and located in the transition area. The shading structure defines a first via hole, the first via hole is located in the hole area, and the orthographic projection of the first via hole on the display substrate coincides with the hole area.

2. The display module according to claim 1, characterized in that: It also includes an optical adhesive layer, wherein the optical adhesive layer is disposed on the display substrate and is located on a side of the light shielding structure away from the first via hole; Preferably, the orthographic projection of the optical adhesive layer on the display substrate covers the display area and a portion of the transition area.

3. The display module according to claim 2, characterized in that: A polarizer is also included, wherein the polarizer is located between the optical adhesive layer and the display substrate and defines a second via hole, and the orthographic projection of the second via hole on the display substrate coincides with the orthographic projection of the first via hole on the display substrate.

4. The display module according to claim 1, characterized in that: It also includes a polarizer, which is disposed on the display substrate and located on a side of the light shielding structure away from the first via hole; Preferably, the orthographic projection of the polarizer on the display substrate covers the display area and a portion of the transition area.

5. The display module according to claim 4, characterized in that: It also includes an optical adhesive layer, which is located on a side of the polarizer away from the display substrate. The optical adhesive layer defines a third via hole, and the orthographic projection of the third via hole on the display substrate coincides with the orthographic projection of the first via hole on the display substrate.

6. The display module according to claim 1, characterized in that: Also includes: a polarizer, disposed on the display substrate and located on a side of the light shielding structure away from the first via hole; as well as an optical adhesive layer, located on a side of the polarizer away from the display substrate and on a side of the light shielding structure away from the first via hole; Preferably, the polarizer covers the display area and a portion of the transition area, and / or the optical adhesive layer covers the display area and a portion of the transition area; Preferably, the orthographic projection of the polarizer on the display substrate coincides with the orthographic projection of the optical adhesive layer on the display substrate.

7. The display module according to any one of claims 1 to 6, characterized in that: The light shielding structure includes a black organic material.

8. The display module according to claim 7, characterized in that: The display substrate further includes a frame area surrounding the display area, and the display substrate further includes: a cover plate, located at a side of the shading structure away from the display substrate, the cover plate covering the display area, the frame area, the hole area and the transition area of ​​the display substrate; The ink layer is arranged between the cover plate and the light shielding structure, and the orthographic projection of the ink layer on the display substrate is located in the frame area and not in the transition area.

9. A method for preparing a display module, characterized in that: include: Providing a display substrate, the display substrate having a display area, a hole area, and a transition area between the display area and the hole area; forming a light shielding structure on one side of the display substrate, wherein the light shielding structure covers the hole area and at least a portion of the transition area; A hole digging process is performed on the hole area of ​​the display substrate, and a portion of the light shielding structure overlapping with the hole area is removed simultaneously, so as to form a first via hole in the light shielding structure, wherein the first via hole overlaps with the hole area.

10. A display device, characterized in that: A display module comprising any one of claims 1 to 8 or a display module obtained by the preparation method according to claim 9.

Images