Display module and display device

Abstract

The invention discloses a display module and a display device. The display module comprises a display assembly and a cover plate located on the light emitting side of the display assembly. The display assembly comprises a display panel and an optical adhesive layer which are stacked in the thickness direction of the display assembly, and the optical adhesive layer is located between the display panel and the cover plate; in the first direction, at least part of the edge of the optical adhesive layer exceeds at least part of the edge of the display panel, and the first direction is parallel to the extending direction of the plane where the cover plate is located; the display module further comprises a shading part, the shading part is located on at least part of the edge of the surface of the side, facing the display panel, of the cover plate, and the shading part covers at least part of the edge of the display panel and at least part of the edge of the optical adhesive layer in the direction perpendicular to the display panel. Through the scheme, the overlapping area of the shading part and the edge of the optical adhesive layer can be increased, so that the edge deformation area of the optical adhesive layer is well shielded by utilizing the shading part, edge marks of the display module are avoided, and the appearance attractiveness of the display module is improved.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of display technology, and in particular to a display module and a display device. Background Art

[0002] With the development of display technology, the application of display devices has become more and more common, and has gradually become an indispensable part of people's daily work and life. Correspondingly, people have also put forward higher requirements on the display area and frame size of display devices. Extremely narrow frame and high screen-to-body ratio have become the mainstream design of display devices. However, as the frame of display devices narrows, some edge problems gradually emerge. Summary of the invention

[0003] The present invention provides a display module and a display device, which can avoid appearance problems at the edge of the display module while ensuring a narrow frame, thereby improving the appearance of the display module.

[0004] In a first aspect, an embodiment of the present invention provides a display module, comprising a display component and a cover plate located on a light emitting side of the display component;

[0005] The display assembly comprises a display panel and an optical adhesive layer stacked along a thickness direction of the display assembly, wherein the optical adhesive layer is located between the display panel and the cover plate; along a first direction, at least a portion of an edge of the optical adhesive layer exceeds at least a portion of an edge of the display panel, and the first direction is parallel to an extension direction of a plane where the cover plate is located;

[0006] The display module also includes a shading portion, which is located at least partially on the edge of the cover plate surface facing the display panel, and covers at least partially on the edge of the display panel and at least partially on the edge of the optical adhesive layer in a direction perpendicular to the display panel.

[0007] In a second aspect, an embodiment of the present invention provides a display device, comprising the display module described in the first aspect of the present invention.

[0008] In an embodiment of the present invention, the display module includes a display component and a cover plate located on the light-emitting side of the display component; the display component includes a display panel and an optical adhesive layer stacked along the thickness direction of the display component, and the optical adhesive layer is located between the display panel and the cover plate; along a first direction, at least part of the edge of the optical adhesive layer exceeds at least part of the edge of the display panel, and the first direction is parallel to the extension direction of the plane where the cover plate is located; the display module also includes a shading portion, the shading portion is located at least part of the edge of the surface of the cover plate facing the display panel, and the shading portion covers at least part of the edge of the display panel and at least part of the edge of the optical adhesive layer in a direction perpendicular to the display panel. Through the above scheme, the overlapping area between the shading portion and the edge of the optical adhesive layer can be increased, so that the shading portion can be used to better shield the edge deformation area of ​​the optical adhesive layer, avoid the appearance of the edge mark of the display module, and improve the appearance of the display module. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 A schematic diagram of edge deformation of an optical adhesive layer provided by an embodiment of the present invention;

[0010] Figure 2 A schematic diagram of the structure of a display module in a related technology provided by an embodiment of the present invention;

[0011] Figure 3 A schematic diagram of the structure of a display module provided by an embodiment of the present invention;

[0012] Figure 4 A schematic diagram of the structure of another display module provided by an embodiment of the present invention;

[0013] Figure 5 A schematic diagram of the structure of another display module provided by an embodiment of the present invention;

[0014] Figure 6 A schematic diagram of the structure of another display module provided by an embodiment of the present invention;

[0015] Figure 7 A schematic diagram of the structure of another display module provided by an embodiment of the present invention;

[0016] Figure 8 A schematic diagram of the structure of another display module provided by an embodiment of the present invention;

[0017] Fig. 9 A schematic diagram of the structure of another display module provided by an embodiment of the present invention;

[0018] Fig.10 A schematic diagram of the structure of another display module provided by an embodiment of the present invention;

[0019] Fig.11 A schematic diagram of the structure of another display module provided by an embodiment of the present invention;

[0020] Fig.12 A schematic structural diagram of a display device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0022] It should be noted that the words “having”, “including”, “comprising”, etc. described in this application are all open-ended meanings, that is, when describing that a module “has”, “including”, or “comprising” a first element, a second element, and / or a third element, it means that the module includes other elements in addition to the first element, the second element, and / or the third element. In addition, ordinal numbers such as “first”, “second”, and “third” in this application are not intended to limit a specific order, but are only used to distinguish various parts.

[0023] The display module mainly includes display components, cover plates, and middle frames. The display components include stacked display panels and optical adhesive layers. The optical adhesive layer will be cut before bonding with the display panel. Figure 1 A schematic diagram of edge deformation of an optical adhesive layer provided in an embodiment of the present invention. The inventors have found that when the optical adhesive layer 11 is cut by a mold, the optical adhesive layer 11 at the cut edge is easily squeezed and deformed. Figure 2 A schematic diagram of a display module in a related art provided by an embodiment of the present invention can be referred to Figure 2 In the related art, the edges of the optical adhesive layer 11 and the display panel 10 are flush. Since the display module frame is narrow, the overlapping area between the shading portion 3 at the edge of the display module and the display assembly 1 becomes narrower. When the display assembly 1 is attached to the cover plate 2, bubbles are easily generated in the edge deformation area a of the optical adhesive layer 11. However, the shading portion 3 is not enough to cover the bubbles at the edge of the optical adhesive layer 11, resulting in marks on the edge of the display module, which causes appearance problems of the display module.

[0024] Based on the above-mentioned problems of the related art, the present invention proposes a display module, including a display component and a cover plate located on the light-emitting side of the display component;

[0025] The display assembly includes a display panel and an optical adhesive layer stacked along a thickness direction of the display assembly, wherein the optical adhesive layer is located between the display panel and the cover plate; along a first direction, at least a portion of an edge of the optical adhesive layer exceeds at least a portion of an edge of the display panel, and the first direction is parallel to an extension direction of a plane where the cover plate is located;

[0026] The display module also includes a shading portion, which is located at least partially on the edge of the cover plate surface facing the display panel. The shading portion covers at least partially on the edge of the display panel and at least partially on the edge of the optical adhesive layer in a direction perpendicular to the display panel.

[0027] Through the above technical solution, the overlapping area between the shading part and the edge of the optical adhesive layer can be increased, so that the shading part can be used to better shield the edge deformation area of ​​the optical adhesive layer, avoid the appearance of edge marks of the display module, and improve the appearance of the display module.

[0028] The above is the core idea of ​​the present invention. The technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Figure 3 A schematic diagram of a display module provided by an embodiment of the present invention can be referred to Figure 3 In an embodiment of the present invention, the display module includes a display component 1 and a cover plate 2 located on the light emitting side of the display component 1; the display component 1 includes a display panel 10 and an optical adhesive layer 11 stacked along the thickness direction of the display component 1, and the optical adhesive layer 11 is located between the display panel 10 and the cover plate 2; along a first direction X, at least part of the edge of the optical adhesive layer 11 exceeds at least part of the edge of the display panel 10, and the first direction X is parallel to the extension direction of the plane where the cover plate 2 is located; the display module also includes a shading portion 3, the shading portion 3 is located at least part of the edge of the surface of the cover plate 2 facing the display panel 10, and the shading portion 3 covers at least part of the edge of the display panel 10 and at least part of the edge of the optical adhesive layer 11 in a direction perpendicular to the display panel 10.

[0030] like Figure 3 As shown, the display assembly 1 includes a display panel 10 and an optical adhesive layer 11, which are used to realize the display function of the display device. The display panel 10 can be an organic light emitting diode display panel, etc., which is not limited in the present invention. Taking an organic light emitting diode display panel as an example, the display panel 10 may include an array substrate, a light emitting layer, and an encapsulation layer, etc., which are stacked in sequence. The specific structure of the display panel 10 can be designed by those skilled in the art according to actual needs, and the embodiments of the present invention do not elaborate on or limit this.

[0031] The display panel 10 may include a light emitting surface and a backlight surface which are arranged relatively along the thickness direction of the display panel 10. The light emitting surface is used to display the picture, and the side where the light emitting surface is located is the light emitting side of the display component 1. The optical adhesive layer 11 and the cover plate 2 are both arranged on the light emitting side of the display panel 10. The optical adhesive layer 11 can be used as a bonding structure between the display component 1 and the cover plate 2, and at least a part of the display component 1 is bonded and fixed to the cover plate 2. Among them, the optical adhesive layer 11 can be a double-sided adhesive layer, but is not limited thereto. The cover plate 2 is a transparent cover plate, and the specific material can be selected according to the needs.

[0032] The display module further includes a shading portion 3 , which is located on a surface of the cover plate 2 facing the display assembly 1 and is disposed on at least a portion of an edge of the cover plate 2 .

[0033] Among them, along the thickness direction Z of the display component (i.e., the direction perpendicular to the plane where the display panel 10 is located), the light shielding portion 3 is located between at least part of the edge area of ​​the optical adhesive layer 11 and the cover plate 2. Along the thickness direction Z of the display component, the edge area covered by the light shielding portion 3 is the frame area NA of the display module, and the middle area surrounded by the light shielding portion 3 is the display area AA of the display module. The first direction X may refer to a direction parallel to the plane where the cover plate 2 (display component 1) is located and perpendicularly points from the display area AA to the frame area NA (or the frame area NA perpendicularly points to the display area AA). Figure 3 The entire display area AA is not shown.

[0034] It is worth mentioning that, in order to avoid the problems in the related art described above, the embodiment of the present invention proposes that at least part of the edge of the optical adhesive layer 11 in the first direction X can be arranged to exceed the edge of the display panel 10 on the same side along the direction. In addition, in the direction perpendicular to the plane where the display panel 10 is located (that is, the thickness direction Z of the display component), the light shielding portion 3 covers at least part of the edge of the display panel 10 and the optical adhesive layer 11. In other words, the orthographic projection of the light shielding portion 3 on the plane where the display panel 10 is located covers the orthographic projection of at least part of the edge of the display panel 10 and the optical adhesive layer 11 on the plane where the display panel 10 is located.

[0035] In this arrangement, in the direction perpendicular to the plane where the display panel 10 is located, the size of the overlapping area between the light shielding portion 3 and the optical adhesive layer 11 (ie Figure 3 When the display module 1 is attached to the cover plate 2, even if there is an edge deformation area of ​​the optical adhesive layer 11, the light shielding portion 3 can well shield the edge deformation area of ​​the optical adhesive layer 11, thereby avoiding the appearance of edge marks of the display module and improving the appearance of the display module.

[0036] like Figure 3As shown, the frame area NA may include a first frame area NA1, and the area where the edge of the optical adhesive layer 11 exceeds the edge of the display panel 10 may be defined as being located in the first frame area NA1, and the first frame area NA1 may refer to a partial or full frame area of ​​the display module. In the embodiment of the present invention, by increasing the extension length of the edge of the optical adhesive layer 11 in the first frame area NA1, the area of ​​the overlapping region between the shading portion 3 and the optical adhesive layer 11 can be increased without increasing the size of the shading portion 3 (the length along the first direction X), thereby ensuring that the frame of the display module is narrow.

[0037] In an embodiment of the present invention, the display module includes a display component and a cover plate located on the light-emitting side of the display component; the display component includes a display panel and an optical adhesive layer stacked along the thickness direction of the display component, and the optical adhesive layer is located between the display panel and the cover plate; along a first direction, at least part of the edge of the optical adhesive layer exceeds at least part of the edge of the display panel, and the first direction is parallel to the extension direction of the plane where the cover plate is located; the display module also includes a shading portion, the shading portion is located at least part of the edge of the surface of the cover plate facing the display panel, and the shading portion covers at least part of the edge of the display panel and at least part of the edge of the optical adhesive layer in a direction perpendicular to the display panel. Through the above scheme, the overlapping area between the shading portion and the edge of the optical adhesive layer can be increased, so that the shading portion can be used to better shield the edge deformation area of ​​the optical adhesive layer, avoid the appearance of the edge mark of the display module, and improve the appearance of the display module.

[0038] Optional, Figure 4 A structural schematic diagram of another display module provided for an embodiment of the present invention may refer to Figure 4. In some embodiments, at least a portion of the edge of the optical adhesive layer 11 includes a deformation region a, and the orthographic projection of the deformation region a on the plane where the cover plate 2 is located is located within the coverage range of the orthographic projection of the shading portion 3 on the plane where the cover plate 2 is located.

[0039] like Figure 4 As shown, the side of the light shielding portion 3 away from the edge of the cover plate 2 can be extended to exceed the deformation area a of the optical adhesive layer 11. Before preparing the light shielding portion 3, the size of the deformation area a after the optical adhesive layer 11 is cut (the length along the first direction X) can be determined first. When preparing the light shielding portion 3, the size of the overlapping area between the light shielding portion 3 and the optical adhesive layer 11 is controlled to be greater than or equal to the size of the deformation area a. Therefore, after the cover plate 2 is attached to the display module 1, the light shielding portion 3 completely covers the deformation area a of the optical adhesive layer 11, avoiding the appearance of the edge mark of the display module.

[0040] Optional, you can continue to refer to Figure 3 In a possible embodiment, the display assembly 1 further includes a polarizer 12, which is located between the display panel 10 and the optical adhesive layer 11; along the first direction X, at least a portion of the edge of the polarizer 12 exceeds at least a portion of the edge of the display panel 10.

[0041] like Figure 3 As shown, the polarizer 12 and the optical adhesive layer 11 are located on the same side of the display panel 10, and the polarizer 12 is located between the display surface and the optical adhesive layer 11. The two side surfaces of the polarizer 12 along the thickness direction Z are respectively attached to the display panel 10 and the optical adhesive layer 11. The polarizer 12 can adjust the polarization state of the light emitted by the display panel 10, thereby effectively reducing the reflection of the external ambient light, improving the contrast, ensuring the display effect, and protecting the display panel 10.

[0042] refer to Figure 3 In this embodiment, at least a portion of the edge of the polarizer 12 in the first direction X may be arranged to extend beyond the edge of the display panel 10 on the same side along the direction. In a direction perpendicular to the plane where the display panel 10 is located, the light shielding portion 3 may also cover at least a portion of the edge of the polarizer 12 .

[0043] The edge of the polarizer 12 extending beyond the display panel 10 and the edge of the optical adhesive layer 11 extending beyond the display panel 10 may be on the same side edge, that is, the edge of the polarizer 12 and the edge of the optical adhesive layer 11 in the first frame area NA1 may both extend beyond the edge of the display panel 10 .

[0044] The advantage of such a configuration is that by increasing the extended length of at least part of the edge of the polarizer 12, the length of the overlapping area between the polarizer 12 and the shading portion 3 along the first direction X can be increased, thereby increasing the distance from the edge of the polarizer 12 to the display area AA, which can effectively prevent the edge failure area of ​​the polarizer 12 from entering the display area AA, thereby improving the reliability of the display module.

[0045] Optional, you can continue to refer to Figure 3 In a possible embodiment, along the first direction X, at least part of the edge of the cover plate 2 exceeds at least part of the edge of the optical adhesive layer 11 and the polarizer 12; the shading portion 3 extends from the edge of the cover plate 2 along the first direction X to a side away from the edge of the cover plate 2.

[0046] like Figure 3 As shown, the orthographic projection area of ​​the cover plate 2 on the plane where the display assembly 1 is located can be larger than the orthographic projection graphic area of ​​the display assembly 1 on the plane, so that the cover plate 2 covers the display assembly 1. Along the first direction X, the edge of the cover plate 2 can exceed the edge of the display assembly 1 on the same side. The shading portion 3 can extend from the edge of the cover plate 2 along the first direction X to the side away from the edge of the cover plate 2 and be fixed to the optical adhesive layer 11, thereby ensuring the shading effect of the shading portion 3.

[0047] For example, please refer to Figure 3 In some embodiments, at least a portion of the edge of the optical adhesive layer 11 is flush with at least a portion of the edge of the polarizer 12 .

[0048] As an alternative, Figure 3 As shown, it can be arranged that along the first direction X, at least part of the edge of the optical adhesive layer 11 and the edge of the polarizer 12 on the same side of the direction are flush. In this way, the contact area between the optical adhesive layer 11 and the polarizer 12 is large, and the bonding firmness can be ensured. It should be noted that the edge flushing mentioned here refers to the flushing within the allowable range of process error, and the minor error can be ignored.

[0049] For example, Figure 5 A schematic diagram of another display module provided in an embodiment of the present invention can be referred to Figure 5 In some other embodiments, along the first direction X, at least a portion of the edge of the optical adhesive layer 11 exceeds at least a portion of the edge of the polarizer 12 .

[0050] As another alternative, Figure 5 As shown, it can be arranged that along the first direction X, at least part of the edge of the optical adhesive layer 11 exceeds the edge of the polarizer 12 on the same side in the direction, that is, in the first frame area NA1, the edge of the optical adhesive layer 11 can exceed the edge of the polarizer 12. In this arrangement, the size of the overlapping area of ​​at least part of the optical adhesive layer 11 and the light shielding portion 3 in the direction perpendicular to the plane of the display panel 10 is greater than the size of the overlapping area of ​​at least part of the polarizer 12 and the light shielding portion 3 in the direction. In this way, along the first direction X, the distance between the edge of the polarizer 12 and the edge of the cover plate 2 is greater than the distance between the edge of the optical adhesive layer 11 and the edge of the cover plate 2, which is conducive to preventing the edge of the polarizer 12 from being affected by external water vapor impurities and the like. Failure.

[0051] For example, Figure 6 A schematic diagram of the structure of another display module provided in an embodiment of the present invention can be referred to Figure 6 In some further embodiments, along the first direction X, at least a portion of the edge of the polarizer 12 exceeds at least a portion of the edge of the optical adhesive layer 11 .

[0052] As another alternative, Figure 6 As shown, along the first direction X, at least part of the edge of the polarizer 12 may exceed the edge of the optical adhesive layer 11 on the same side in the direction, that is, in the first frame area NA1, the edge of the polarizer 12 may exceed the edge of the optical adhesive layer 11. In this arrangement, the distance from the edge of the polarizer 12 to the display area AA may be further increased to prevent the edge failure area of ​​the polarizer 12 from entering the display area AA.

[0053] For example, Figure 7 A schematic diagram of the structure of another display module provided by an embodiment of the present invention, referring to Figure 7In some other embodiments, the display assembly 1 further includes a polarizer 12, which is located between the display panel 10 and the optical adhesive layer 11; along the first direction X, at least a portion of the edge of the polarizer 12 is flush with at least a portion of the edge of the display panel 10.

[0054] Figure 7 In the illustrated embodiment, the position of the polarizer 12 in the thickness direction Z of the display assembly is the same as that in the above embodiment, and will not be described in detail here. Different from the above embodiment, in this embodiment, along the first direction X, at least part of the edge of the polarizer 12 can be flush with the edge of the display panel 10 on the same side in this direction, that is, at the first frame area NA1, the edge of the polarizer 12 is flush with the edge of the display panel 10, and the edge of the optical adhesive layer 11 exceeds the edge of the polarizer 12 and the display panel 10. In this way, the distance between the edge of the polarizer 12 and the edge of the cover plate 2 in the first direction X is greater, which can further improve the problem of edge failure of the polarizer 12.

[0055] Optional, Figure 8 A schematic diagram of the structure of another display module provided by an embodiment of the present invention, referring to Figure 8 In a possible embodiment, along the first direction X, there is a first spacing d1 between the edges on the same side of the display panel 10 and the optical adhesive layer 11, there is a second spacing d2 between the edges on the same side of the display panel 10 and the polarizer 12, there is a third spacing d3 between the edges on the same side of the optical adhesive layer 11 and the cover plate 2, and there is a fourth spacing d4 between the edges on the same side of the polarizer 12 and the cover plate 2; wherein, d1>d3, d2>d4.

[0056] like Figure 8 As shown, in the first frame area NA1 of the display module, the edges on the same side of the display panel 10 and the optical adhesive layer 11 have a first spacing d1 in the first direction X, and the first spacing d1 can be understood as the length of the edge of the optical adhesive layer 11 exceeding the edge of the display panel 10 in the first direction X; the edges on the same side of the display panel 10 and the polarizer 12 have a second spacing d2 in the first direction X, and the second spacing d2 can be understood as the length of the edge of the polarizer 12 exceeding the edge of the display panel 10 in the first direction X; the edges on the same side of the optical adhesive layer 11 and the cover plate 2 have a third spacing d3 in the first direction X, and the third spacing d3 can be understood as the length of the edge of the cover plate 2 exceeding the edge of the optical adhesive layer 11 in the first direction X; the edges on the same side of the polarizer 12 and the cover plate 2 have a fourth spacing d4 in the first direction X, and the fourth spacing d4 can be understood as the length of the edge of the cover plate 2 exceeding the edge of the polarizer 12 in the first direction X.

[0057] This embodiment defines that: the first spacing d1 is greater than the third spacing d3, and the second spacing d2 is greater than the fourth spacing d4, which can be understood as: the length of the edge of the optical adhesive layer 11 exceeding the edge of the display panel 10 is greater than the length of the edge of the cover plate 2 exceeding the edge of the optical adhesive layer 11, or it can be interpreted as that the distance between the edge of the display panel 10 and the edge of the optical adhesive layer 11 is greater than the distance between the edge of the optical adhesive layer 11 and the edge of the cover plate 2; the length of the edge of the polarizer 12 exceeding the edge of the display panel 10 is greater than the length of the edge of the cover plate 2 exceeding the edge of the polarizer 12, or it can be interpreted as that the distance between the edge of the display panel 10 and the edge of the polarizer 12 is greater than the distance between the edge of the polarizer 12 and the edge of the cover plate 2.

[0058] In this configuration, the overlapping areas of the optical adhesive layer 11 and the polarizer 12 with the light shielding portion 3 are ensured to be relatively wide, thereby improving the shielding effect of the light shielding portion 3 on the edge deformation area and improving the aesthetics.

[0059] The specific values ​​of the first spacing d1, the second spacing d2, the third spacing d3 and the fourth spacing d4 are not limited.

[0060] Exemplarily, in some embodiments, it can be set that: 0.2 mm ≤ d1 ≤ 0.35 mm, 0.2 mm ≤ d2 ≤ 0.35 mm, 0.15 mm ≤ d3 ≤ 0.3 mm, and 0.15 mm ≤ d4 ≤ 0.3 mm.

[0061] Experiments show that by setting the length of the optical adhesive layer 11 and the polarizer 12 beyond the display panel 10 (the dimension along the first direction) to be between 0.2-0.35 mm, the light shielding portion 3 can completely shield the edge deformation area of ​​the optical adhesive layer 11. By setting the spacing between the optical adhesive layer 11 and the polarizer 12 and the edge of the cover plate 2 to be between 0.15-0.3 mm, the possibility of edge failure of the display component 1 can be effectively reduced.

[0062] like Figure 8 As shown, along the first direction X, the spacing between the edges of the display panel 10 and the cover plate 2 on the same side is the sum of the first spacing d1 and the third spacing d3. The spacing between the edges of the display panel 10 and the cover plate 2 on the same side can be set in the range of 0.35-0.75 mm. In some embodiments, the spacing between the edges of the display panel 10 and the cover plate 2 on the same side can be set in the range of 0.4-0.5 mm to ensure that the distance between the display panel 10 and the edge of the display module is sufficient, which can prevent water vapor impurities from entering the display component 1 and prevent external forces from being transmitted to the display component 1 during collision and causing damage to the display component 1.

[0063] Optional, you can continue to refer to Figure 8In a possible embodiment, along the first direction X, there is a first spacing d1 between the same side edges of the display panel 10 and the optical adhesive layer 11; the orthographic projection of the optical adhesive layer 11 on the plane where the cover plate 2 is located and the orthographic projection of the light shielding portion 3 on the plane where the cover plate 2 is located have a first overlapping length d5 ​​along the first direction X; wherein d5>d1.

[0064] like Figure 8 As shown, the optical adhesive layer 11 and the light shielding portion 3 include a projected overlapping portion in the thickness direction Z of the display assembly, and the first overlapping length d5 ​​is the size of the projected overlapping portion in the first direction X. In this embodiment, the first overlapping length d5 ​​can be defined to be greater than the first spacing d1. In other words, along the first direction X, the length of the projected overlapping portion of the optical adhesive layer 11 and the light shielding portion 3 is greater than the length of the edge of the optical adhesive layer 11 beyond the edge of the display panel 10. This ensures that the light shielding portion 3 covers the edges of the display panel 10 and the optical adhesive layer 11 in a direction perpendicular to the plane where the display panel 10 is located.

[0065] Optional, you can continue to refer to Figure 8 In a possible embodiment, along the first direction X, at least part of the edge of the cover plate 2 exceeds at least part of the edge of the optical adhesive layer 11, and a third distance d3 is present between the edges on the same side of the optical adhesive layer 11 and the cover plate 2; the orthographic projection of the optical adhesive layer 11 on the plane where the cover plate 2 is located and the orthographic projection of the light shielding portion 3 on the plane where the cover plate 2 is located have a first overlapping length d5 ​​along the first direction X; wherein d5>d3.

[0066] like Figure 8 As shown, in this embodiment, the first overlapping length d5 ​​can be limited to be greater than the third spacing d3. In other words, along the first direction X, the length of the overlapping portion of the optical adhesive layer 11 and the shading portion 3 is greater than the length of the edge of the cover plate 2 beyond the edge of the optical adhesive layer 11.

[0067] It can be understood that the edge of the cover plate 2 exceeds the edge of the optical adhesive layer 11, and the shading portion 3 extends inward from the edge of the cover plate 2. In the portion of the cover plate 2 that exceeds the optical adhesive layer 11, the surface of the cover plate 2 facing the display component 1 is also covered by the shading portion 3. The portion where the shading portion 3 overlaps with the projection of the optical adhesive layer 11 along the thickness direction Z of the display component can be defined as the first shading portion 31, and the portion that does not overlap with the optical adhesive layer 11 can be defined as the second shading portion 32. In the first direction X, the second shading portion 32 is located outside the first shading portion 31. By setting the length of the overlapping portion of the projection of the optical adhesive layer 11 and the shading portion 3 to be greater than the length of the edge of the cover plate 2 that exceeds the edge of the optical adhesive layer 11, the length of the first shading portion 31 along the first direction X can be greater than the length of the second shading portion 32 along the first direction X, and the shading portion 3 can also ensure that the shading effect of the deformation area of ​​the edge of the optical adhesive layer 11 is better.

[0068] The embodiment of the present invention also does not limit the specific value of the first overlapping length d5. For example, in some embodiments, it can be set as follows: 1.3d3≤d5≤3d3.

[0069] Taking the third spacing d3 in the range of 0.15-0.3mm as an example, the first overlapping length d5 ​​can be set in the range of 0.2-0.9mm, which can ensure that the length of the first shading portion 31 is sufficient to block the deformation area at the edge of the optical adhesive layer 11, while avoiding the shading portion 3 being too long along the first direction X to increase the frame width.

[0070] Furthermore, in some embodiments, d5 ≥ 0.4 mm can be set, and the total length of the light shielding portion 3 in the first direction X can be 0.55-0.7 mm. Compared with the related art, the length d6 of the light shielding portion 3 along the first direction is 0.6-0.8 mm ( Figure 2 As shown), in this embodiment, the size of the shading portion 3 is further reduced, and the size of the frame can be further reduced.

[0071] You can continue to refer to Figure 3 In a possible embodiment, the display module further includes a protective adhesive 4 , and the protective adhesive 4 covers at least a portion of the side wall of the display component 1 .

[0072] The side wall of the display assembly 1 may include the side of the display panel 10, the side of the optical adhesive layer 11 and the side of the polarizer 12, but is not limited thereto. Figure 3 As shown, in this embodiment, a protective glue 4 may be provided on at least a portion of the side wall surface of the display component 1 , and the protective glue 4 may protect the side wall of the display component 1 and block the invasion of water vapor, impurities, etc.

[0073] Further, you can continue to refer to Figure 3 The shading portion 3 includes a first shading portion 31 and a second shading portion 32, and the second shading portion 32 surrounds the first shading portion 31; the orthographic projection of the first shading portion 31 on the plane where the cover plate 2 is located overlaps with the orthographic projection of the optical adhesive layer 11 on the plane where the cover plate 2 is located, and the protective adhesive 4 also covers at least a portion of the surface of the second shading portion 32 facing away from the cover plate 2.

[0074] The positional relationship between the first light shielding section 31 and the second light shielding section 32 can be referred to the above embodiment, and will not be described in detail here. Figure 3 As shown, the protective glue 4 also covers at least a portion of the surface of the second light shielding portion 32 away from the cover plate 2. In this way, the protective glue 4 can also play a role in fixing the display component 1 and the cover plate 2, thereby improving the overall fixing strength of the display module.

[0075] Fig. 9 A schematic diagram of another display module provided in an embodiment of the present invention can be referred to Fig. 9The display module also includes a middle frame 5, which includes a bottom plate 51 and a side plate 52. The bottom plate 51 is located on the side of the display component 1 away from the cover plate 2, and the side plate 52 surrounds the side wall of the display component 1 and the side wall of the cover plate 2. There is a first gap between the display component 1, the cover plate 2 and the middle frame 5, and the protective glue 4 is at least partially located in the first gap b.

[0076] The middle frame 5 can be regarded as the outer shell of the display module. The middle frame 5 includes a bottom plate 51 and a side plate 52 connected to each other. The bottom plate 51 is located on the backlight side of the display panel 10, and the side plate 52 surrounds the side wall of the display component 1 and the side wall of the cover plate 2. The display component 1 can be fixed in the accommodation space formed by the middle frame 5 and the cover plate 2, and the cover plate 2 and the middle frame 5 protect the display component 1. The embodiment of the present invention does not limit the specific shape of the bottom plate 51 and the side plate 52. Fig. 9 These are examples only.

[0077] like Fig. 9 As shown, there is a first gap b between the side wall of the display component 1, the cover plate 2 and the side plate 52 of the middle frame 5, and the protective glue 4 layer is located in the first gap b. In the orientation shown in the figure, the side surface of the protective glue 4 can contact at least part of the side wall of the display component 1; the top of the protective glue 4 can contact the second shading portion 32; the bottom of the protective glue 4 can contact the bottom plate 51 of the middle frame 5.

[0078] There is a gap between the optical adhesive layer 11 and the polarizer 12 and the side plate 52, which can also avoid the problem of abnormal warping of the polarizer 12 when the protective adhesive 4 is formed in the first gap b. In addition, the edge of the cover plate 2 can be in contact with the side plate 52 or there is a gap, which is not elaborated or limited in the embodiment of the present invention. The figure takes the existence of a gap between the two as an example, which is not limited to this.

[0079] Optional, you can continue to refer to Fig. 9 The protective glue 4 includes a first colloid portion 41 and a second colloid portion 42 which are integrally arranged. The first colloid portion 41 covers the side wall of the optical glue layer 11, and the second colloid portion 42 covers the side wall of the display panel 10. Along the first direction X, the thickness of the first colloid portion 41 is less than the thickness of the second colloid portion 42.

[0080] Since the edge of the optical adhesive layer 11 exceeds the edge of the display panel 10 on the same side in the first frame area NA1 of the display module, the distance between the edge of the optical adhesive layer 11 and the edge of the cover plate 2 is smaller than the distance between the edge of the display panel 10 and the edge of the cover plate 2. Accordingly, the thickness (length along the first direction X) of the partial protective adhesive 4 (first adhesive portion 41) between the optical adhesive layer 11 and the side plate 52 is smaller than the thickness (length along the first direction X) of the partial protective adhesive 4 (second adhesive portion 42) between the display panel 10 and the side plate 52.

[0081] In addition, one point needs to be explained: Fig. 9 In the illustrated embodiment, the side of the protective glue 4 facing away from the display assembly 1 is in direct contact with the side plate 52, thereby improving the fixing strength between the middle frame 5, the display assembly 1 and the cover plate 2. In an embodiment not shown in the present invention, the side of the protective glue 4 facing away from the display assembly 1 may be at a distance from the side plate 52 and not in direct contact. The advantage of such a setting is that when the display module is hit, it can prevent the external force from being directly transmitted to the display assembly 1 through the protective glue 4, thereby preventing the internal components and wiring of the display assembly 1 from being deformed by external forces.

[0082] Fig.10 A schematic diagram of the structure of another display module provided by an embodiment of the present invention, Fig.10 The figure shows a top view of the display module. Fig. 9 and Fig.10 In a possible embodiment, the protective glue 4 may surround the display assembly 1 .

[0083] like Fig. 9 and Fig.10 As shown, the protective glue 4 can be located in a circle of gap between the display component 1 and the side panel 52, and the protective glue 4 is arranged around the side wall of the display component 1, and the protective glue 4 covers the entire side wall of the display component 1, thereby sealing the side of the display component 1 and providing better protection for the display component 1.

[0084] Among them, the embodiment of the present invention does not limit the material and preparation process of the protective glue 4. Exemplarily, the protective glue 4 can be prepared by dispensing, printing or low-pressure injection molding (LIPO) process. For the dispensing process, a glue drop valve can be used to dispense glue into the first gap b to form the protective glue 4 and control the shape of the protective glue 4; for the printing process, a micro nozzle can be used to print the glue into the first gap b to form the protective glue 4 and control the shape of the protective glue 4; for the LIPO process, the LIPO equipment can be used to accurately inject the glue into the first gap b and perform a curing process to form the protective glue 4 and control the shape of the protective glue 4.

[0085] Fig.11 A schematic diagram of a structure of another display module provided in an embodiment of the present invention can be combined with reference to Figure 3 , Fig.10 and Fig.11 The display panel 10 includes a bent edge 101 and a non-bent edge 102, and the bent edge 101 and the non-bent edge 102 are located on different sides of the display panel 10; the optical adhesive layer 11 includes a first edge 111 and a second edge 112, the first edge 111 and the bent edge 101 are on the same side, and the second edge 112 and the non-bent edge 102 are on the same side; along the first direction X, the second edge 112 of the optical adhesive layer 11 exceeds the non-bent edge 102 of the display panel 10, and the bent edge 101 of the display panel 10 exceeds the first edge 111 of the optical adhesive layer 11.

[0086] The frame area NA where the non-bending edge 102 is located may be the first frame area NA1 mentioned above, and the frame area NA where the bending edge 101 is located may be the second frame area NA2. Figure 3 is a schematic diagram of the cross-sectional structure of the display module in the first frame area NA1, Fig.11 Schematic diagram of the cross-sectional structure of the display module in the second frame area NA2. Figure 3 , Fig.10 and Fig.11 , the bent edge 101 refers to the portion of the display panel 10 that is bent from the light-emitting surface to the backlight surface. The portion of the display panel 10 that is bent to the backlight surface can be subsequently used to bind to components such as a driver chip (not shown in the figure) and a flexible circuit board (not shown in the figure). Therefore, a flexible substrate can be used as a base substrate of the display panel 10 to improve the bending performance of the display panel 10. At the second border area NA2, the display panel 10 bent to the backlight surface can be fixed to a supporting structure (such as the protective film BP shown in the figure) and fixed to the middle frame bottom plate through an adhesive layer 20. Exemplarily, the protective glue 4 may also be located in the gap on the side of the adhesive layer 20 facing the middle frame side plate.

[0087] The non-bending edge 102 refers to an edge of the display panel 10 that does not need to be bent. Generally, the bending edge 101 and the non-bending edge 102 are different edges of the display panel 10. For example Fig.10 As shown, the bent edge 101 may refer to the lower edge of the display panel 10, and the second border area NA2 is the lower border of the display module; the non-bent edge 102 may refer to the upper edge and left and right edges of the display panel 10, and the first border area NA1 is the upper border and left and right borders of the display module, but is not limited to this.

[0088] refer to Figure 3 and Fig.11 The optical adhesive layer 11 includes a first edge 111 and a second edge 112, and the first edge 111 and the second edge 112 are different edges of the optical adhesive layer 11. The first edge 111 of the optical adhesive layer 11 and the bent edge 101 of the display panel 10 are the same side edges, and the second edge 112 of the optical adhesive layer 11 and the non-bent edge 102 of the display panel 10 are the same side edges.

[0089] In this embodiment, the second edge 112 of the optical adhesive layer 11 may be arranged to extend beyond the non-bending edge 102 of the display panel 10, that is, the area where the edge of the optical adhesive layer 11 extends beyond the edge of the display panel 10 is the location of the non-bending area of ​​the display panel 10, that is, the first frame area NA1. The edge of the optical adhesive layer 11 in the first frame area NA2 may not extend beyond the edge of the display panel 10, that is, the first edge 111 of the optical adhesive layer 11 is located within the bending edge 101 of the display panel 10.

[0090] Since the bending edge 101 of the display panel 10 needs to bend toward the backlight surface, if the edge of the optical adhesive layer 11 is set to exceed the bending edge 101 of the display panel 10, it may affect the bending of the display panel 10. Therefore, in this embodiment, the edge (first edge 111) of the optical adhesive layer 11 on the same side as the bending edge 101 of the display panel 10 does not exceed the bending edge 101 of the display panel 10, so as to ensure that the display panel 10 is bent normally, and at the same time, the edge (second edge 112) of the optical adhesive layer 11 on the same side as the non-bending edge 102 of the display panel 10 is set to extend outward, so as to increase the shielding area of ​​the optical adhesive layer 11 by the light shielding portion 3 at the non-bending edge 102.

[0091] You can continue to refer to Figure 3 and Fig.11 The display component 1 also includes a polarizer 12, which is located between the display panel 10 and the optical adhesive layer 11; the polarizer 12 includes a third edge 121 and a fourth edge 122, the third edge 121 and the bent edge 101 are located on the same side, and the fourth edge 122 and the non-bent edge 102 are on the same side; in the first direction X, the fourth edge 122 of the polarizer 12 exceeds the non-bent edge 102 of the display panel 10, and the bent edge 101 of the display panel 10 exceeds the third edge 121 of the polarizer 12.

[0092] like Figure 3 and Fig.11 As shown, the third edge 121 and the fourth edge 122 are different edges of the polarizer 12. The third edge 121 of the polarizer 12 and the bent edge 101 of the display panel 10 are on the same side, and the fourth edge 122 of the polarizer 12 and the non-bent edge 102 of the display panel 10 are on the same side.

[0093] In this embodiment, the fourth edge 122 of the polarizer 12 may be set to exceed the non-bending edge 102 of the display panel 10, that is, the area where the edge of the polarizer 12 exceeds the edge of the display panel 10 is the location of the non-bending area of ​​the display panel 10, that is, the first frame area NA1. The edge of the polarizer 12 in the first frame area NA2 may not exceed the edge of the display panel 10, that is, the third edge 121 of the polarizer 12 is located within the bending edge 101 of the display panel 10. In this way, it is also possible to avoid the edge of the polarizer 12 extending too long to affect the normal bending of the display panel 10, which is conducive to ensuring the bending effect of the display panel 10.

[0094] Of course, in other embodiments, all edges of the optical adhesive layer 11 and / or the polarizer 12 may be arranged to extend beyond the edge of the display panel 10, that is, the first edge 111 (the second edge 112) of the optical adhesive layer 11 extends beyond the bent edge 101 (the non-bent edge 102) of the display panel 10, and / or the third edge 121 (the fourth edge 122) of the polarizer 12 extends beyond the bent edge 101 (the non-bent edge 102) of the display panel 10. This increases the shielding area of ​​the light shielding portion 3 at any edge of the display assembly 1 to the edge of the optical adhesive layer 11.

[0095] The display module in the embodiment of the present invention may also include any film layer structure known to those skilled in the art. For example, a support structure may be provided on the side of the display panel 10 away from the optical adhesive layer 11. The support structure includes but is not limited to a protective film BP and a foam layer SCF. The embodiment of the present invention does not elaborate on this and does not limit this.

[0096] Based on the same inventive concept, an embodiment of the present invention further provides a display device. Fig.12 FIG. 1 is a schematic diagram of a display device provided by an embodiment of the present invention. Fig.12 As shown, the display device includes the display module 100 provided by any embodiment of the present invention. Therefore, the display device provided by the embodiment of the present invention has the corresponding beneficial effects of the display module provided by the embodiment of the present invention, which will not be repeated here. Exemplarily, the display device can be an electronic device such as a mobile phone, a computer, a smart wearable device (for example, a smart watch), and a car display device, which is not limited by the embodiment of the present invention.

[0097] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments herein, and that various obvious changes, readjustments, combinations and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A display module, characterized in that: It includes a display assembly and a cover plate located on the light emitting side of the display assembly; The display assembly comprises a display panel and an optical adhesive layer stacked along a thickness direction of the display assembly, wherein the optical adhesive layer is located between the display panel and the cover plate; along a first direction, at least a portion of an edge of the optical adhesive layer exceeds at least a portion of an edge of the display panel, and the first direction is parallel to an extension direction of a plane where the cover plate is located; The display module also includes a shading portion, which is located at least partially on the edge of the cover plate surface facing the display panel, and covers at least partially on the edge of the display panel and at least partially on the edge of the optical adhesive layer in a direction perpendicular to the display panel.

2. The display module according to claim 1, characterized in that: The display assembly further includes a polarizer, and the polarizer is located between the display panel and the optical adhesive layer; Along the first direction, at least a portion of an edge of the polarizer exceeds at least a portion of an edge of the display panel.

3. The display module according to claim 2, characterized in that: At least a portion of the edge of the optical adhesive layer is flush with at least a portion of the edge of the polarizer.

4. The display module according to claim 2, characterized in that: Along the first direction, at least a portion of the edge of the optical adhesive layer exceeds at least a portion of the edge of the polarizer.

5. The display module according to claim 2, characterized in that: Along the first direction, at least a portion of the edge of the polarizer exceeds at least a portion of the edge of the optical adhesive layer.

6. The display module according to claim 2, characterized in that: Along the first direction, at least part of the edge of the cover plate exceeds at least part of the edge of the optical adhesive layer and the polarizer; the shading portion extends from the edge of the cover plate along the first direction to a side away from the edge of the cover plate.

7. The display module according to claim 6, characterized in that: Along the first direction, there is a first distance d1 between the edges on the same side of the display panel and the optical adhesive layer, there is a second distance d2 between the edges on the same side of the display panel and the polarizer, there is a third distance d3 between the edges on the same side of the optical adhesive layer and the cover plate, and there is a fourth distance d4 between the edges on the same side of the polarizer and the cover plate; Among them, d1>d3, d2>d4.

8. The display module according to claim 1, characterized in that: The display assembly further includes a polarizer, and the polarizer is located between the display panel and the optical adhesive layer; Along the first direction, at least a portion of the edge of the polarizer is flush with at least a portion of the edge of the display panel.

9. The display module according to claim 1, characterized in that: Along the first direction, there is a first distance d1 between the edges of the display panel and the optical adhesive layer on the same side; the orthographic projection of the optical adhesive layer on the plane where the cover plate is located and the orthographic projection of the light shielding portion on the plane where the cover plate is located have a first overlapping length d5 ​​along the first direction; Among them, d5>d1.

10. The display module according to claim 1, characterized in that: Along the first direction, at least part of the edge of the cover plate exceeds at least part of the edge of the optical adhesive layer, and a third distance d3 is formed between the edges on the same side of the optical adhesive layer and the cover plate; an orthographic projection of the optical adhesive layer on the plane where the cover plate is located and an orthographic projection of the light shielding portion on the plane where the cover plate is located have a first overlapping length d5 ​​along the first direction; Among them, d5>d3.

11. The display module according to claim 10, characterized in that: 1.3d3≤d5≤3d3.

12. The display module according to claim 1, characterized in that: The display module further includes a protective adhesive, and the protective adhesive covers at least a portion of the side wall of the display component.

13. The display module according to claim 12, characterized in that: The light shielding portion includes a first light shielding sub-section and a second light shielding sub-section, wherein the second light shielding sub-section surrounds the first light shielding sub-section; The orthographic projection of the first light-shielding portion on the plane where the cover plate is located overlaps with the orthographic projection of the optical adhesive layer on the plane where the cover plate is located, and the protective adhesive also covers at least a portion of the surface of the second light-shielding portion on a side away from the cover plate.

14. The display module according to claim 12, characterized in that: The protective glue includes a first colloid portion and a second colloid portion that are integrally arranged, the first colloid portion covers the side wall of the optical glue layer, and the second colloid portion covers the side wall of the display panel; along the first direction, the thickness of the first colloid portion is less than the thickness of the second colloid portion.

15. The display module according to claim 12, characterized in that: The display module further includes a middle frame, the middle frame including a bottom plate and a side plate, the bottom plate is located on a side of the display assembly away from the cover plate, and the side plate surrounds the side wall of the display assembly and the side wall of the cover plate; A first gap is defined between the display assembly, the cover plate, and the middle frame, and the protective glue is at least partially located in the first gap.

16. The display module according to claim 12, characterized in that: The protective glue surrounds the display component.

17. The display module according to claim 1, characterized in that: The display panel includes a bent edge and a non-bent edge, and the bent edge and the non-bent edge are located on different sides of the display panel; the optical adhesive layer includes a first edge and a second edge, the first edge is on the same side as the bent edge, and the second edge is on the same side as the non-bent edge; Along the first direction, the second edge of the optical adhesive layer exceeds the non-bending edge of the display panel, and the bending edge of the display panel exceeds the first edge of the optical adhesive layer.

18. The display module according to claim 17, characterized in that: The display assembly further includes a polarizer, and the polarizer is located between the display panel and the optical adhesive layer; the polarizer includes a third edge and a fourth edge, the third edge and the bent edge are located on the same side, and the fourth edge and the non-bent edge are on the same side; In the first direction, the fourth edge of the polarizer exceeds the non-bent edge of the display panel, and the bent edge of the display panel exceeds the third edge of the polarizer.

19. The display module according to claim 1, characterized in that: At least part of the edge of the optical adhesive layer includes a deformation area, and the orthographic projection of the deformation area on the plane where the cover plate is located is located within the coverage range of the orthographic projection of the light shielding portion on the plane where the cover plate is located.

20. A display device, characterized in that: A display module comprising any one of claims 1-19.

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