Display module and display device

Abstract

Embodiments of the present application provide a display module and a display device, and relate to the technical field of display, and aim to solve the problem of reduced stability of a display assembly caused by the part of the display assembly beyond the buffer layer being suspended. The backlight module comprises a display panel, a back plate, a buffer layer and a support layer, the display panel comprises a main body part and a bending part; the back plate, the buffer layer and the support layer are located on one side of the main body part and are sequentially stacked, the back plate comprises a first side, the buffer layer comprises a second side, and the support layer comprises a third side, the third side, the second side and the first side are located on the same side of the display module; wherein, the second side is flush with the first side; or, the orthographic projection of the second side on the support layer is located between the orthographic projection of the first side on the support layer and the first edge of the support layer located on the third side.

Description

Technical Field

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

[0002] Foldable display modules typically include a display component and a support component. The display component includes a display panel and a back panel, while the support component includes a buffer layer and a support layer. The buffer layer is attached to the back panel to provide stable support for the display component.

[0003] In related technologies, the backplate often extends beyond the edge of the buffer layer, causing the portion of the display component that extends beyond the buffer layer to be suspended. During the assembly of the display module with the complete machine, the frame of the complete machine presses against the perimeter of the display module. At this time, the edge of the buffer layer becomes a fulcrum, causing the portion of the display component that extends beyond the buffer layer to sink, and the portion of the display component that does not extend beyond the buffer layer to be slightly lifted, thereby reducing the stability of the display component. Summary of the Invention

[0004] This application provides a display module and display device to at least solve the problem in the related art where the portion of the display component extending beyond the buffer layer is suspended, leading to a decrease in the stability of the display component.

[0005] On one hand, this application provides a display module including a display panel, a back panel, a buffer layer, and a support layer. The display panel includes a main body and a bent portion; the back panel is located on one side of the main body and includes a first side; the buffer layer is located on the side of the back panel away from the main body and includes a second side; the support layer is located on the side of the buffer layer away from the back panel and includes a third side, and the third side, the second side, and the first side are located on the same side of the display module; wherein the second side is flush with the first side; or, the orthographic projection of the second side onto the support layer is located between the orthographic projection of the first side onto the support layer and the first edge of the support layer located on the third side.

[0006] In some embodiments, the main body includes a fourth side facing away from the bent portion and two fifth sides disposed opposite to each other, the fifth sides being adjacent to the fourth side; wherein the second side is disposed on the same side as the fourth side or the fifth side.

[0007] In some embodiments, the main body includes a fourth side facing away from the bent portion and two fifth sides disposed opposite to each other, the fifth sides being adjacent to the fourth side; the second side includes a plurality of planar portions; wherein each planar portion is disposed on the same side as one of the fifth sides; or, some of the planar portions are disposed on the same side as the fifth side, and another portion of the planar portions are disposed on the same side as the fourth side.

[0008] In some embodiments, the second side includes three planar portions, one of which is disposed on the same side as the fourth side, and the other two planar portions are disposed on the same side as the corresponding fifth side.

[0009] In some embodiments, the buffer layer further includes multiple sets of alignment recesses, each set of alignment recesses including two alignment recesses disposed on the same side, and the two alignment recesses are respectively located at both ends of one of the planar portions.

[0010] In some embodiments, the first edge extends along a first direction, and along the first direction, the size of the alignment recess located on one side of the first edge is greater than or equal to 800 micrometers; and / or, along a second direction perpendicular to the direction of extension of the first edge, the size of the alignment recess located on one side of the first edge is greater than or equal to 50 micrometers and less than or equal to 200 micrometers.

[0011] In some embodiments, the second side also includes a plurality of curved surfaces, each of the flat portions being located between two of the curved surfaces.

[0012] In some embodiments, the buffer layer further includes multiple sets of alignment recesses, each set of alignment recesses including two alignment recesses disposed on the same side, and the sidewall of each alignment recess contacting a planar portion and a curved portion.

[0013] In some embodiments, the buffer layer further includes a sixth side surface located near the bend, and the support layer further includes a seventh side surface near the bend, wherein the sixth side surface and the seventh side surface are flush.

[0014] In some embodiments, the buffer layer further includes first marking grooves formed at both ends of the sixth side, and the support layer further includes second marking grooves formed at both ends of the seventh side, with each first marking groove exposing a corresponding second marking groove.

[0015] On the other hand, embodiments of this application also provide a display device, which includes a display module as described in any of the above embodiments.

[0016] In the display module provided in this application embodiment, since the second side is flush with the first side, or the orthographic projection of the second side onto the support layer is located between the orthographic projection of the first side onto the support layer and the first edge of the support layer on the third side, the buffer layer can effectively support the display component. This effectively avoids the buffer layer becoming a fulcrum at the edge of the second side, thus preventing the buffer layer from sinking in some areas and warping in others. Furthermore, it increases the thickness of the display module at the edges, thereby avoiding edge deformation and stress concentration issues, improving the impact resistance of the display module's edges, and enhancing the stability of the display module. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a display module provided in some embodiments of this application;

[0019] Figure 2 yes Figure 1 A sectional view along A-A';

[0020] Figure 3 yes Figure 1 A cross-sectional view along B-B';

[0021] Figure 4 yes Figure 1 Another sectional view along B-B';

[0022] Figure 5 This is a schematic diagram showing the relative positional relationship between the buffer layer and the support layer according to some embodiments of this application;

[0023] Figure 6 yes Figure 5 Enlarged schematic diagram of region E1 in the middle;

[0024] Figure 7 yes Figure 5 Enlarged schematic diagram of region E2 in the middle;

[0025] Figure 8 yes Figure 1 Another sectional view along A-A';

[0026] Figure 9 yes Figure 1 Another sectional view along B-B';

[0027] Figure 10 This is a schematic diagram of the structure of a display device provided in some embodiments of this application. Detailed Implementation

[0028] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings. The described technical solutions are for illustrative purposes only and should not be construed as limiting the scope of protection of this application.

[0029] In the description of this application, it should be understood that the terms "first," "second," and similar words do not indicate any order, quantity, or importance, but are merely used to distinguish different technical features. The terms "multiple" and similar words mean two or more, unless otherwise expressly defined.

[0030] "A and / or B" includes the following three combinations: A only, B only, and a combination of A and B.

[0031] The use of "applies to" or "configured to" in this application implies open and inclusive language, which does not exclude the applicability to or configuration to devices performing additional tasks or steps. Additionally, the use of "based on" implies openness and inclusivity, because processes, steps, calculations, or other actions "based on" one or more of the stated conditions or values ​​may in practice be based on additional conditions or values ​​beyond those stated.

[0032] In this application, the term "exemplary" is used to mean "serving as an example, illustration, or description." Any embodiment described as "exemplary" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to make and use this application.

[0033] The various embodiments of this application are similar, and features from different embodiments and / or different examples can be combined with each other.

[0034] Some embodiments of this application provide a display module, such as Figures 1 to 4 As shown, the display module 100 includes a display panel 10, a back plate 20, a buffer layer 30, and a support layer 40. The display panel 10 and the back plate 20 can form a display assembly, and the buffer layer 30 and the support layer 40 can form a support assembly. By attaching the buffer layer 30 to the back plate 20, the support assembly can support the display assembly.

[0035] The display panel 10 includes a main body 11 and a bent portion 12. A back plate 20, a buffer layer 30, and a support layer 40 are located on one side of the main body 11 and are arranged sequentially in a direction away from the main body 11. The back plate 20 includes a first side surface 21, the buffer layer 30 includes a second side surface 31, and the support layer 40 includes a third side surface 41. The first side surface 21, the second side surface 31, and the third side surface 41 are all located on the same side of the display module 100. The third side surface 41 is further away from the axis of the display module 100 than the first side surface 21 and the second side surface 31.

[0036] In this embodiment, as Figure 3 As shown, the second side 31 is flush with the first side 21; or, as... Figure 4 As shown, the orthographic projection of the second side 31 onto the support layer 40 lies between the orthographic projection of the first side 21 onto the support layer 40 and the first edge 411 of the support layer 40 located on the third side 41.

[0037] With the second side 31 of the buffer layer 30 flush with the first side 21 of the back panel 20, the buffer layer 30 can also provide effective support for the display assembly. Since the third side 41 is further away from the axis of the display module 100 than the second side 31, the support layer 40 extends beyond the second side 31 of the buffer layer 30, thereby exposing the edge of the support layer 40, so that the support assembly and the display assembly can be aligned by gripping the edge of the support layer 40 during the bonding process.

[0038] With the orthographic projection of the second side 31 onto the support layer 40 located between the orthographic projection of the first side 21 onto the support layer 40 and the first edge 411, the buffer layer 30 extends beyond the first side 21 of the back panel 20, and the support layer 40 extends beyond the second side 31 of the buffer layer 30. This ensures that the buffer layer 30 provides effective support for the display assembly while also exposing the edge of the support layer 40, facilitating edge alignment of the support assembly and the display assembly during the bonding process.

[0039] Therefore, the display module 100 provided in this application embodiment utilizes the buffer layer 30 to provide effective support for the display component. On the one hand, it can effectively prevent the edge of the buffer layer on the second side from becoming a fulcrum, thereby causing the buffer layer to sink in some positions and warp in others. On the other hand, it can also increase the thickness of the display module 100 at the edge, thereby avoiding the problems of edge deformation and stress concentration of the display component, thereby improving the impact resistance of the edge of the display module 100 and enhancing the stability of the display module 100.

[0040] It is worth noting that when the upper surface of the support layer 40 is used as the projection plane, the first edge 411 of the support layer 40 on the third side 41 can be the upper edge of the support layer 40 on the third side 41; while when the lower surface of the support layer 40 is used as the projection plane, the first edge 411 of the support layer 40 on the third side 41 can be the lower edge of the support layer 40 on the third side 41. Figure 3 and Figure 4 The upper edge of the support layer 40 located on the third side 41 is illustrated as an example.

[0041] In some examples, the second side 31 and the first side 21 may extend along the thickness direction of the display module 100. In this case, the orthographic projections of the second side 31 and the first side 21 onto the support layer 40 are linear. For example, both the orthographic projections of the second side 31 and the first side 21 onto the support layer 40 are line segments. In this case, both the second side 31 and the first side 21 are perpendicular to the upper surface of the support layer 40.

[0042] In other examples, the extending directions of the first side 21 and the second side 31 are at angles to the thickness direction of the display module 100, respectively. In this case, the orthographic projections of the first side 21 and the second side 31 onto the support layer 40 occupy a certain area. That is, the first side 21 and the second side 31 are at angles other than 90° to the upper surface of the support layer 40.

[0043] In some embodiments, such as Figure 2 and Figure 3 As shown, the main body 11 includes a fourth side surface 111 on the side opposite to the bent portion 12 and two fifth side surfaces 112 disposed opposite each other, the fifth side surfaces 112 and the fourth side surface 111 being adjacent to each other. For example, the fourth side surface 111 may be located at... Figure 1 The fifth side 112 is located on the upper side of the display module 100 shown. Figure 1 The left and right sides of the display module 100 shown.

[0044] The second side 31 is disposed on the same side as the fourth side 111 or the fifth side 112.

[0045] Since the second side 31 is flush with the first side 21, or the orthographic projection of the second side 31 on the support layer 40 is located between the orthographic projection of the first side 21 on the support layer 40 and the first edge 411, the buffer layer 30 can effectively support the display component on the fourth side 111 or the fifth side 112, thereby improving the stability of the display module 100.

[0046] In some embodiments, such as Figure 5 As shown, Figure 5 A diagram showing the relative positions of the buffer layer 30 and the support layer 40 is provided, wherein the buffer layer 30 is located above the support layer 40. In the case where the main body 11 includes a fourth side surface 111 and a fifth side surface 112, the second side surface 31 includes a plurality of planar portions 311.

[0047] In some examples, each planar portion 311 is disposed on the same side as a fifth side surface 112. That is, the second side surface 31 includes two planar portions 311, each planar portion 311 being located on the same side of the display module 100 as a fifth side surface 112.

[0048] This configuration allows the buffer layer 30 to provide effective support for the left and right sides of the display components, thereby improving the stability of the display module 100.

[0049] In other examples, some planar portions 311 are disposed on the same side as the fifth side 112, while other planar portions 311 are disposed on the same side as the fourth side 111. For example, the second side 31 includes two planar portions 311, one of which is located on the same side of the display module 100 as the fifth side 112, and the other is located on the same side of the display module 100 as the fourth side 111. As another example, the second side 31 includes three planar portions 311, one of which is disposed on the same side as the fourth side 111, and the other two are disposed on the same side as their respective fifth side 112.

[0050] When the second side 31 includes three planar portions 311, the buffer layer 30 can provide effective support for the upper side and the left and right sides of the display component, thereby further improving the stability of the display module 100.

[0051] In some embodiments, such as Figure 5 and Figure 6 As shown, each planar portion 311 has a spacing L between it and its corresponding third side surface 41. The spacing L is determined by the manufacturing tolerances of the support layer 40 and the buffer layer 30, as well as their bonding tolerances. For example, the spacing L can be 150 micrometers.

[0052] It is worth noting that although there is a distance L between the planar portion 311 and its corresponding third side surface 41, it is still necessary to ensure that the planar portion 311 is flush with its corresponding first side surface 21, or that the orthographic projection of the planar portion 311 on the support layer 40 is located between the orthographic projection of the first side surface 21 on the support layer 40 and the first edge 411 of the support layer 40 located on the corresponding third side surface 41.

[0053] In some embodiments, please continue reading Figure 5The buffer layer 30 also includes multiple sets of alignment recesses 310. Each set of alignment recesses 310 includes two alignment recesses 310 disposed on the same side, and the two alignment recesses 310 are respectively located on both sides of one of the planar portions 311. For example, the buffer layer 30 includes three sets of alignment recesses 310, one set of alignment recesses 310 is disposed on the same side as the fourth side surface 111, and the other two sets of alignment recesses 310 are disposed on the same side as the corresponding fifth side surface 112.

[0054] By using two alignment recesses 310 located on the same side, the support layer 40 can be gripped at the edge and a straight line can be fitted, thereby determining the center point of the support layer 40 on the side of the line. By determining the center points of the support layer 40 on three sides, it is beneficial to improve the alignment accuracy of the display component and the support component during the alignment process, thereby improving the bonding accuracy of the display component and the support component.

[0055] In some embodiments, such as Figure 6 As shown, the first edge 411 extends along the first direction X, and along the first direction X, the first dimension D1 (i.e. the length of the alignment recess 310) of the alignment recess 310 located on one side of the first edge 411 is greater than or equal to 800 micrometers.

[0056] By setting the length of the alignment recess 310 to a range of 800 micrometers or more, the edge gripping requirements of the support layer 40 can be effectively met, thereby avoiding the problem of inaccurate or failed edge gripping of the support layer 40.

[0057] In some examples, the length of the alignment recess 310 can be less than or equal to 5000 micrometers. This setting can effectively meet the edge gripping requirements of the support layer 40, and also avoid the problem of reduced support of the support component due to the excessively large opening range of the alignment recess 310.

[0058] As an example, the length of the repositioning depression 310 can be greater than or equal to 2000 micrometers and less than or equal to 4000 micrometers. For example, the length of the repositioning depression 310 is 2000 micrometers, 2500 micrometers, 3000 micrometers, 3500 micrometers, or 4000 micrometers.

[0059] In some embodiments, please continue reading Figure 6 Along the second direction Y, which is perpendicular to the extension direction of the first edge 411, the second dimension D2 (i.e. the width of the alignment recess 310) of the alignment recess 310 located on one side of the first edge 411 is greater than or equal to 50 micrometers and less than or equal to 200 micrometers.

[0060] This design effectively meets the edge-gripping requirements of the support layer 40, while also avoiding the problem of reduced support capacity of the support components due to an excessively large opening range of the alignment recess 310.

[0061] As an example, the width of the alignment recess 310 is equal to 50 micrometers.

[0062] It is worth noting that when the buffer layer 30 includes three sets of alignment recesses 310, the first edge 411 corresponding to the alignment recesses 310 is also different due to the different sides on which the alignment recesses 310 are located.

[0063] In some embodiments, such as Figures 5 to 7 As shown, the second side surface 31 also includes a plurality of curved surfaces 312, with each flat surface 311 located between two curved surfaces 312. Each curved surface 312 may be located at a corner of the display module 100.

[0064] By setting the curved surface 312, good support can be provided for the corner positions of the display components, thereby improving the structural stability of the display module 100.

[0065] As an example, the curvature of the curved surface 312 can be the same as the curvature of the back plate 20 at the corresponding position, thereby improving the support performance of the support component for the display component at the corner position.

[0066] In some examples, the sidewall of each alignment recess 310 contacts a flat portion 311 and an arcuate portion 312. In this case, each arcuate portion 312 contacts the sidewall of the corresponding alignment recess 310. For example, on the side corresponding to the fourth side surface 111 or the fifth side surface 112, the arcuate portion 312, the alignment recess 310, the flat portion 311, the alignment recess 310, and the arcuate portion 312 are arranged in sequence.

[0067] This design avoids the alignment recess 310 being located on the curved surface 312, which could easily lead to a reduction in the edge gripping accuracy of the support layer 40.

[0068] In other examples, at least a portion of the curved portion 312 may be spaced apart from the sidewall of the corresponding aligning recess 310. For example, this spacing may be 500 micrometers. In this case, the planar portion 311 may be spaced into multiple portions by the aligning recesses 310, one portion being located between two aligning recesses 310 disposed on the same side, and another portion being located between an aligning recess 310 and an adjacent, spaced-apart curved portion 312.

[0069] This design avoids the alignment recess 310 being located on the curved surface 312, which could easily lead to a reduction in the edge gripping accuracy of the support layer 40.

[0070] As an example, on one side of the display module 100 (e.g., on the upper side of the display module 100), two curved surfaces 312 may be spaced apart from the sidewalls of corresponding alignment recesses 310. In this case, the flat surface 311 can be divided into three parts by the alignment recesses 310, one part being located between two alignment recesses 310 disposed on the same side, and the other two parts being located between an alignment recess 310 and the adjacent, spaced-apart curved surface 312, respectively.

[0071] In some embodiments, such as Figure 2 and Figure 5 As shown, the buffer layer 30 also includes a sixth side surface 32 located near the bending portion 12, and the support layer 40 also includes a seventh side surface 42 located near the bending portion 12, the seventh side surface 42 being flush with the sixth side surface 32.

[0072] Because the bending portion 12 needs to be bent so that its bonding end is transferred to the back side of the display panel 10, by aligning the seventh side surface 42 with the sixth side surface 32, the support component can provide stable support to the display component on the side near the bending portion 12. This avoids the problem of deformation of the bending portion 12 due to insufficient support from the support component during the bending process, thereby ensuring the stability of the display component.

[0073] In some examples, the sixth side 32 and the seventh side 42 are both planes.

[0074] In some embodiments, such as Figure 5 and Figure 7 As shown, the buffer layer 30 also includes a first marking groove 320 formed at both ends of the sixth side 32, and the support layer 40 also includes a second marking groove 420 formed at both ends of the seventh side 42, with each first marking groove 320 exposing a corresponding second marking groove 420.

[0075] With this configuration, the first marking groove 320 on the buffer layer 30 exposes the second marking groove 420 on the support layer 40. During the bending process of the bending section 12, the alignment marks on the display panel 10 can be grasped through the first marking groove 320 and the second marking groove 420, thereby ensuring the smooth progress of the bending process.

[0076] As an example, along the width direction of the first marking groove 320 (e.g.) Figure 5 As shown in the second direction Y), there is a first distance between the first marking groove 320 and the second marking groove 420; along the length direction of the first marking groove 320 (e.g., in the second direction Y), Figure 5 As shown in the first direction X), there is a second distance between the first marking groove 320 and the second marking groove 420, and both the first distance and the second distance can be 150 micrometers.

[0077] In some examples, the sidewall of the first marking groove 320 may contact the adjacent curved surface 312. When the sidewall of the alignment recess 310 contacts the adjacent curved surface 312, the position of the alignment recess 310 and the position of the first marking groove 320 can be aligned, thereby facilitating the fabrication of the buffer layer 30.

[0078] In other examples, there is a gap between the sidewall of the first marking groove 320 and the adjacent curved surface 312, and this gap is the same as the gap between the sidewall of the curved surface 312 and the alignment recess 310. This also allows the position of the alignment recess 310 to be aligned with the position of the first marking groove 320, thereby facilitating the fabrication of the buffer layer 30.

[0079] In some embodiments, please continue reading Figure 5 and Figure 7 The buffer layer 30 also includes two alignment grooves 330 formed on the sixth side surface 32, which are located between the two first marking grooves 320. In this case, the alignment grooves 330 can be used in conjunction with the alignment recesses 310 to achieve the gripping of the support layer 40.

[0080] The third dimension D3 of the alignment groove 330 along the first direction X (i.e., the length of the alignment groove 330) is greater than or equal to 800 micrometers; the fourth dimension D4 of the alignment groove 330 along the second direction Y (i.e., the width of the alignment groove 330) is greater than or equal to 50 micrometers and less than or equal to 200 micrometers. It is worth noting that the dimensions of the alignment groove 330 can be set with reference to the dimensions of the alignment recess 310, and this embodiment does not impose any limitations on this.

[0081] In some examples, each alignment groove 330 is connected to the adjacent first marking groove 320. This improves the overall stability of the buffer layer 30 structure.

[0082] In some embodiments, such as Figure 8 As shown, a protective adhesive layer 71 is provided on the display panel 10, and the protective adhesive layer 71 at least covers the part of the bending portion 12 that is bent. The protective adhesive layer 71 can buffer stress during the bending process of the bending portion 12, reducing problems such as material fatigue caused by stress concentration. The protective adhesive layer 71 can be made of photosensitive adhesive.

[0083] After bending, the extended portion of the bent portion 12 is fixed to a support plate 91, and a spacer pad 92 can be provided between the support plate 91 and the support layer 40. The material of the support plate 91 can be the same as that of the back plate 20. This allows for stable support of the extended portion of the bent portion 12 after bending using the support plate 91 and the spacer pad 92. As an example, the material of the back plate 20 may include polyethylene terephthalate, etc.

[0084] In some examples, the extended portion of the bent portion 12 is also provided with a bonding end, which can be connected to the flexible circuit board 81, and the other end of the flexible circuit board 81 is connected to the printed circuit board 82. This allows the printed circuit board 82 to transmit signals to the display panel 10 through the flexible circuit board 81. The printed circuit board 82 can be fixed to the surface of the support layer 40 away from the buffer layer 30 by adhesive.

[0085] In some examples, the buffer layer 30 includes two adhesive layers and a polyimide layer disposed between the two adhesive layers. The main body 11 and the support layer 40 are both bonded to the polyimide layer via adhesive layers on corresponding sides. The polyimide layer can be made of black polyimide material, which can achieve a light-shielding effect, thereby improving the display performance of the display module 100.

[0086] In some examples, the material of the support layer 40 includes stainless steel, titanium alloy, and carbon fiber.

[0087] In some embodiments, such as Figure 8 and Figure 9 As shown, the display module 100 also includes a polarizer 50 and a cover plate assembly 60. The polarizer 50 is disposed on the display side of the main body 11, and the cover plate assembly 60 is disposed on the side of the polarizer 50 facing away from the main body 11. In the direction away from the main body 11, the cover plate assembly 60 includes a first optical adhesive layer 61, an ultra-thin glass 62, a second optical adhesive layer, and a cover plate protective film 63, which are stacked together. The ultra-thin glass 62 and the polarizer 50 are bonded together by the first optical adhesive layer 61, and the ultra-thin glass 62 and the cover plate protective film 63 are bonded together by the second optical adhesive layer. The material of the cover plate protective film 63 includes, but is not limited to, polyethylene terephthalate and transparent polyimide.

[0088] In some examples, the cover plate assembly 60 also includes a third optical adhesive layer 64 disposed on the side of the cover plate protective film 63 opposite to the main body portion 11, and a replaceable protective film 65. The cover plate protective film 63 and the replaceable protective film 65 are bonded together by the third optical adhesive layer.

[0089] Based on the same inventive concept, some embodiments of this application also provide a display device, such as... Figure 10 As shown, the display device 1000 includes a display module 100 as described in any of the above embodiments.

[0090] It should be noted that the display device has the same or similar beneficial effects as the display module. For the derivation of the beneficial effects, please refer to the aforementioned embodiment of the display module, which will not be repeated here.

[0091] In some examples, the display device 1000 also includes a mounting bracket 200 on which the display module 100 is fixed for easy access and use by the user.

[0092] As an example, the display device is a foldable display device, such as a foldable phone or a foldable laptop.

[0093] It is worth noting that, in the description of this article, "A and B are set on the same side" means that A and B are located on the same side of the display module.

[0094] The embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A display module, characterized in that, include: The display panel includes a main body and a bent portion; A back panel is located on one side of the main body, and the back panel includes a first side surface. A buffer layer, located on the side of the back plate opposite to the main body, the buffer layer including a second side surface; and A support layer is located on the side of the buffer layer away from the back plate. The support layer includes a third side surface. The third side surface, the second side surface, and the first side surface are located on the same side of the display module. The second side is flush with the first side; Alternatively, the orthographic projection of the second side onto the support layer lies between the orthographic projection of the first side onto the support layer and the first edge of the support layer located on the third side.

2. The display module according to claim 1, characterized in that, The main body includes a fourth side facing away from the bent portion and two fifth sides disposed opposite to each other, the fifth sides being adjacent to the fourth side; The second side is disposed on the same side as the fourth side or the fifth side.

3. The display module according to claim 1, characterized in that, The main body includes a fourth side facing away from the bent portion and two fifth sides disposed opposite to each other, the fifth sides being adjacent to the fourth side; The second side includes a plurality of planar portions; In this configuration, each planar portion is disposed on the same side as one of the fifth side surfaces; or, some of the planar portions are disposed on the same side as the fifth side surface, while another portion of the planar portions are disposed on the same side as the fourth side surface.

4. The display module according to claim 3, characterized in that, The second side includes three planar portions, one of which is disposed on the same side as the fourth side, and the other two planar portions are disposed on the same side as the corresponding fifth side.

5. The display module according to claim 4, characterized in that, The buffer layer also includes multiple sets of alignment recesses, each set of alignment recesses including two alignment recesses arranged on the same side, and the two alignment recesses are respectively located at both ends of one of the planar portions.

6. The display module according to claim 5, characterized in that, The first edge extends along a first direction, and along the first direction, the size of the aligning recess located on one side of the first edge is greater than or equal to 800 micrometers; and / or, Along a second direction perpendicular to the direction of extension of the first edge, the size of the alignment recess located on one side of the first edge is greater than or equal to 50 micrometers and less than or equal to 200 micrometers.

7. The display module according to claim 3, characterized in that, The second side also includes a plurality of curved surfaces, each of the flat portions being located between two of the curved surfaces.

8. The display module according to claim 7, characterized in that, The buffer layer also includes multiple sets of alignment recesses, each set of alignment recesses including two alignment recesses arranged on the same side, and the sidewall of each alignment recess is in contact with a planar portion and a curved portion.

9. The display module according to any one of claims 1-8, characterized in that, The buffer layer also includes a sixth side surface located near the bend, and the support layer also includes a seventh side surface located near the bend, with the sixth side surface and the seventh side surface being flush.

10. The display module according to claim 9, characterized in that, The buffer layer further includes first marking grooves formed at both ends of the sixth side, and the support layer further includes second marking grooves formed at both ends of the seventh side, with each first marking groove exposing a corresponding second marking groove.

11. A display device, characterized in that, Includes the display module as described in any one of claims 1-10.

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