Display module and display device

Abstract

The application discloses a display module and a display device. The display module comprises a display panel and a cover plate. The display panel comprises a display part, a bending part and a binding part. The binding part is located at the back side of the display part. The bending part connects the display part and the binding part. The cover plate comprises a flat plate part and a curved part arranged around the side of the flat plate part. The flat plate part is located at the light-emitting side of the display part. The curved part extends towards the back side of the display part. The curved part comprises a first curved edge arranged opposite to the bending part and a first corner connected with the first curved edge. The first corner has an overlapping area corresponding to the position of the bending part. The inner side of the first corner is provided with a compensation part. The compensation part forms a compensation surface at the position corresponding to the overlapping area. At least at the position close to the first curved edge, the bending curvature radius of the compensation surface is the same as the bending curvature radius of the inner wall of the first curved edge. In this way, the assembly yield and product quality of the display module are improved.

Description

Technical Field

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

[0002] In recent years, quad-curved displays have become increasingly popular due to their unique design, excellent screen-to-body ratio, comfortable grip, and immersive viewing experience. Quad-curved displays typically utilize flexible display modules. During the assembly of these modules, in one scenario, the bending area of ​​the flexible screen may be compressed or stretched at the Gaussian angle of the glass cover, leading to screen cracking or reduced bonding stability. This not only affects the module assembly yield but also increases reliability risks, causes vertical bright lines, and displays abnormally. Summary of the Invention

[0003] This application provides a display module and display device that can prevent the display panel from cracking during the assembly of the display module, while improving the bonding stability of the display panel, thereby improving the assembly yield and product quality of the display module.

[0004] In a first aspect, embodiments of this application provide a display module, including:

[0005] A display panel includes a display section, a bending section, and a mounting section, wherein the mounting section is located on the back side of the display section, and the bending section connects the display section and the mounting section; and...

[0006] The cover plate includes a flat plate portion and a curved portion surrounding the periphery of the flat plate portion. The flat plate portion is located on the light-emitting side of the display portion, and the curved portion extends toward the back side of the display portion. The curved portion includes a first curved edge disposed opposite to the bent portion and a first corner connecting the first curved edge.

[0007] The first corner has an overlapping area corresponding to the position of the bend. A compensation part is provided on the inner side of the first corner. The compensation part forms a compensation surface at the position corresponding to the overlapping area. At least at the position close to the first curved edge, the bending radius of the compensation surface is the same as the bending radius of the inner wall of the first curved edge.

[0008] In one embodiment, on the side closer to the first curved edge, the compensation surface is flush with and intersects with the inner wall of the first curved edge;

[0009] On the side away from the first curved edge, along the thickness direction of the first curved edge, a step difference is formed between the compensation surface and the inner wall of the first curved edge, the step difference being set to ΔH, wherein ΔH is greater than or equal to 0 and less than 50 μm.

[0010] In one embodiment, the bending radius of the compensation surface is the same as the bending radius of the inner wall of the first curved edge, and the compensation surface is flush with the inner wall of the first curved edge.

[0011] In one embodiment, the radius of curvature of the inner wall of the first corner is greater than the radius of curvature of the inner wall of the first curved edge;

[0012] At the location corresponding to the overlapping area, an arc-shaped clearance groove is provided on the inner wall of the first corner. The radius of curvature of the inner wall of the arc-shaped clearance groove is the same as the radius of curvature of the inner wall of the first curved edge, and the inner wall of the arc-shaped clearance groove is flush with the inner wall of the first curved edge.

[0013] The compensation part includes the arc-shaped clearance groove, and the compensation surface includes the inner wall of the arc-shaped clearance groove.

[0014] In one embodiment, the thickness of the first curved edge is set to T;

[0015] In the thickness direction of the first curved edge, the maximum depth of the arc-shaped clearance groove is set to T. max , among which, T max Less than 1 / 3*T.

[0016] In one embodiment, the inner wall of the first corner is provided with an arc-shaped transition surface at the junction with the inner wall of the arc-shaped clearance groove.

[0017] In one embodiment, the width of the overlapping area is set to W1 in the extending direction of the first curved edge;

[0018] The fitting tolerance between the bent portion and the arc-shaped clearance groove is set to X;

[0019] In the extension direction of the first curved edge, the width of the arc-shaped clearance groove is set to W2, and W2 is greater than the sum of W1 and X.

[0020] In one embodiment, the radius of curvature of the inner wall of the first corner is smaller than the radius of curvature of the inner wall of the first curved edge.

[0021] The inner wall of the first corner is provided with a filling layer, the radius of curvature of the inner surface of the filling layer is the same as the radius of curvature of the inner wall of the first curved edge, and the inner surface of the filling layer is flush with the inner wall of the first curved edge.

[0022] The compensation part includes the filling layer, and the compensation surface includes the inner surface of the filling layer located in the overlapping area.

[0023] In one embodiment, the curved portion further includes a second curved edge and a second corner connecting the second curved edge, wherein the second curved edge is disposed opposite to the first curved edge in a second direction;

[0024] Wherein, the radius of curvature of the inner wall of the second corner is greater than or less than the radius of curvature of the compensation surface.

[0025] Secondly, embodiments of this application also provide a display device, including the display module described above.

[0026] Beneficial effects: In the display module provided by this application, the cover plate has a first curved edge disposed opposite to the bent portion of the display panel and a first corner connected to the first curved edge; the first corner has an overlapping area corresponding to the bent portion, and a compensation portion is disposed on the inner side of the first corner, and the compensation portion forms a compensation surface at the position corresponding to the overlapping area. In the actual assembly process, the display panel is first bonded and then bent. That is, the display part is first bonded to the cover plate, and then the bending part is bent. By setting the compensation surface, at least near the first curved edge, the bending radius of the compensation surface is the same as the bending radius of the inner wall of the first curved edge. Therefore, during the bending process, the starting point of the bending part at the first curved edge and the first corner is almost on the same plane, so that the force on the bending part at the first curved edge and the first corner is almost the same, thereby avoiding the display panel from cracking due to the bending part being bent at the first corner. This can ensure the assembly yield of the display module, avoid problems such as increased reliability risks, vertical bright lines, and abnormal image display during assembly, and improve the quality of the display module. Attached Figure Description

[0027] The technical solution and other beneficial effects of this application will become apparent from the following detailed description of specific embodiments in conjunction with the accompanying drawings.

[0028] Figure 1 This is a schematic diagram of the structure of the display module provided in the embodiments of this application;

[0029] Figure 2 for Figure 1 An enlarged schematic diagram of part A in the image;

[0030] Figure 3 This is a schematic diagram of the structure of the cover plate provided in an embodiment of this application;

[0031] Figure 4 for Figure 3 A sectional view along BB in the middle;

[0032] Figure 5 for Figure 3A sectional view along CC in the middle;

[0033] Figure 6 This is a first schematic diagram of the compensation surface provided in an embodiment of this application;

[0034] Figure 7 A second schematic diagram of the compensation surface provided in the embodiments of this application;

[0035] Figure 8 A third schematic diagram of the compensation surface provided in the embodiments of this application;

[0036] Figure 9 This is a cross-sectional view of the film layer of the display module provided in an embodiment of this application. Detailed Implementation

[0037] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0038] In the description of this application, it should be understood that the terms "above," "below," "front," "back," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and should not be construed as limiting this application. Furthermore, unless otherwise expressly specified and limited, "above" or "below" the second feature of the first feature merely indicates that the first feature is at a higher or lower level than the second feature, and does not indicate a direct connection relationship.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only, and features defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0040] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "connection" and "linking" should be interpreted broadly without specifically limiting the connection method. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0041] The following disclosure provides many different embodiments for implementing different structures of this application. To simplify the disclosure of this application, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, various specific examples of processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0042] This application provides a display module and a display device. This application does not limit the specific form of the display device, which can be an OLED display device. The display device provided in this disclosure can be applied to electronic devices, such as mobile phones, tablets, televisions, monitors, laptops, digital photo frames, navigators, in-vehicle displays, and any product or component with display functionality, such as wearable devices, smartwatches, smart bracelets, smart glasses, smart headphones, smart clothing, and head-mounted displays.

[0043] In a first aspect, embodiments of this application provide a display module 100. Please refer to... Figure 1 and Figure 2 The display module 100 includes a display panel 1 and a cover plate 2; the display panel 1 includes a display part 11, a bending part 12, and a binding part 13, the binding part 13 being located on the back side of the display part 11, and the bending part 12 connecting the display part 11 and the binding part 13; the cover plate 2 includes a flat plate part 21 and a curved part 22 surrounding the flat plate part 21, the flat plate part 21 being located on the light-emitting side of the display part 11, and the curved part 22 extending toward the back side of the display part 11, the curved part 22 including a part that is connected to the back side of the display part 11. The bending portion 12 has a first curved edge 221 opposite to it, and a first corner 222 connecting the first curved edge 221; wherein, the first corner 222 has an overlapping area 222a corresponding to the position of the bending portion 12, and a compensation portion 3 is provided on the inner side of the first corner 222. The compensation portion 3 forms a compensation surface 3a at the position corresponding to the overlapping area 222a. At least at the position close to the first curved edge 221, the bending radius of the compensation surface 3a is the same as the bending radius of the inner wall of the first curved edge 221.

[0044] In the actual product, the cover plate 2 can be a glass cover plate with uniform thickness. The cover plate 2 includes a flat plate portion 21 and a curved portion 22 surrounding the flat plate portion 21. The flat plate portion 21 is located on the light-emitting side of the display portion 11, and the curved portion 22 is located on the periphery of the display portion 11 and extends towards the back side of the display portion 11. The curved portion 22 includes two long curved edges 223 opposite to each other in a first direction F1, two short curved edges 224 opposite to each other in a second direction F2, and a plurality of arc-shaped corners 225 connecting adjacent long curved edges 223 and short curved edges 224. The flat plate portion 21 is flat, with the two long curved edges 223 corresponding to the two long sides of the flat plate portion 21, and the two short curved edges 224 corresponding to the two short sides of the flat plate portion 21. Typically, the bending radius of the long curved edges 223 and the bending radius of the short curved edges 224 are the same. In order to achieve a smooth transition between the long curved edge 223 and the short curved edge 224, two bends in mutually perpendicular directions will appear at the arc corner 225 at the same time. Therefore, the bending radius of the arc corner 225 will change compared to the long curved edge 223 and the short curved edge 224.

[0045] In this application, please refer to Figure 9 The display module 100 further includes a polarizing film layer 4 and an optical adhesive layer 5. The polarizing film layer 4 is disposed on the light-emitting side of the display unit 11. The cover plate 2 is disposed on the side of the polarizing film layer 4 away from the display unit 11. The optical adhesive layer 5 is disposed between the cover plate 2 and the polarizing film layer 4, so that the cover plate 2 is adhered to the polarizing film layer 4.

[0046] Please see Figure 1 and Figure 3 In this embodiment, one of the two short curved edges 224 is set as the first curved edge 221 and the other is set as the second curved edge 226. The two arc-shaped corners 225 connected to the corresponding first curved edge 221 are set as the first corner 222, and the two arc-shaped corners 225 connected to the corresponding second curved edge 226 are set as the second corner 227.

[0047] During the assembly of the display module 100, the display panel 1 is first fitted with the display part 11, and then the bent part 12 is bent. When the radius of curvature of the curved corner 225 is greater than the radius of curvature of the long curved side 223 or the short curved side 224, that is, the inner wall of the curved corner 225 protrudes compared to the long curved side 223 or the short curved side 224, when the bent part 12 is bent, the bent part 12 at the curved corner 225 not only has to bear its own bending force, but also has to bear the extrusion force from the inner wall of the curved corner 225 in multiple directions, which can easily cause... The screen of the display panel 1 cracks. When the bending radius of the arc corner 225 is smaller than that of the long curved edge 223 or the short curved edge 224, that is, the inner wall of the arc corner 225 is concave compared to the long curved edge 223 or the short curved edge 224, the starting point of the bending part 12 at the arc corner 225 and the short curved edge 224 is not on the same plane. This results in different tensile forces on the bending part 12 at the arc corner 225 and the short curved edge 224, thereby reducing the stability of the display part 11.

[0048] In the display module 100 provided in this application, the cover plate 2 has a first curved edge 221 disposed opposite to the bent portion 12 of the display panel 1, and a first corner 222 connected to the first curved edge 221; the first corner 222 has an overlapping area 222a corresponding to the bent portion 12, and a compensation portion 3 is provided on the inner side of the first corner 222, and the compensation portion 3 forms a compensation surface 3a at the position corresponding to the overlapping area 222a. In the actual assembly process, the display module 100 is first bonded and then bent. That is, the display part 11 is first bonded to the cover plate 2, and then the bending part 12 is bent. By setting the compensation surface 3a, at least near the first curved edge 221, the bending radius of the compensation surface 3a is the same as the bending radius of the inner wall of the first curved edge 221. Therefore, during the bending process, the starting point of the bending part 12 at the first curved edge 221 and the compensation surface 3a is almost on the same plane, so that the force on the bending part 12 at the first curved edge 221 and the compensation surface 3a is almost the same, thereby avoiding the display panel 1 from cracking due to the bending part 12 being bent at the first corner 222. This can ensure the assembly yield of the display module 100, avoid problems such as increased reliability risks, vertical bright lines, and abnormal screen display during assembly, and improve the quality of the display module 100.

[0049] It is understood that the compensation part 3 is provided to form the compensation surface 3a on the inner wall 2221 of the first corner 222. As long as the starting point of the bending part 12 at the compensation surface 3a and the first curved edge 221 is approximately on the same plane, this application does not impose specific restrictions on the size of the compensation part 3.

[0050] Please see Figure 3 and Figure 4 In one embodiment of this application, on the side near the first curved edge 221, the compensation surface 3a is flush with and intersects the inner wall of the first curved edge 221; on the side away from the first curved edge 221, along the thickness direction of the first curved edge 221, a step difference is formed between the compensation surface 3a and the inner wall of the first curved edge 221, the step difference being set as ΔH, wherein ΔH is greater than or equal to 0 and less than 50μm. In order to ensure a smooth transition between the inner wall 2221 of the first corner 222 and the inner wall of the first curved edge 221, in this embodiment, on the side closer to the first curved edge 221, the compensation surface 3a is flush with and intersects with the inner wall of the first curved edge 221; and on the side away from the first curved edge 221, along the thickness direction of the first curved edge 221, a step difference is formed between the compensation surface 3a and the inner wall of the first curved edge 221. As long as the step difference ΔH is set to be greater than or equal to 0 and less than 50μm, it can be ensured that the starting point of the bending portion 12 at the compensation surface 3a and the first curved edge 221 is almost on the same plane.

[0051] Specifically, the bending radius of the compensation surface 3a is the same as the bending radius of the inner wall of the first curved edge 221, and the compensation surface 3a is flush with the inner wall of the first curved edge 221. At this time, the step difference between the compensation surface 3a and the first curved edge 221 is 0. Therefore, during the bending process, the starting points of the bending portion 12 at the first curved edge 221 and the compensation surface 3a are on the same plane, thus ensuring that the bending portion 12 experiences the same force at both the first curved edge 221 and the compensation surface 3a, further preventing the display panel 1 from cracking due to the bending portion 12 bending sharply at the first corner 222.

[0052] This application does not impose specific limitations on the structure of the compensation unit 3.

[0053] Please see Figure 6In some embodiments of this application, at the position corresponding to the overlapping area 222a, the inner wall 2221 of the first corner 222 is provided with an arc-shaped relief groove 31. The radius of curvature of the inner wall of the arc-shaped relief groove 31 is the same as the radius of curvature of the inner wall of the first curved edge 221, and the inner wall of the arc-shaped relief groove 31 is flush with the inner wall of the first curved edge 221. The compensation part 3 includes the arc-shaped relief groove 31, and the compensation surface 3a includes the inner wall of the arc-shaped relief groove 31.

[0054] It is known that when the bending radius of the inner wall of the first corner 222 is greater than the bending radius of the first curved edge 221, the bent part 12 of the display panel 1 not only has to bear its own bending force at the first corner 222, but also has to bear the multi-directional extrusion force from the inner wall of the first corner 222, which can easily cause the screen of the display panel 1 to crack. By providing the arc-shaped clearance groove 31 on the inner wall 2221 of the first corner 222, after the bending portion 12 is bent, since the bending radius of the inner wall of the arc-shaped clearance groove 31 is the same as the bending radius of the inner wall of the first curved edge 221, and the inner wall of the arc-shaped clearance groove 31 is flush with the inner wall of the first curved edge 221, the starting point of the bending portion 12 at the inner wall of the first curved edge 221 and the arc-shaped clearance groove 31 is on the same plane, and the force on the bending portion 12 at the inner wall of the first curved edge 221 and the arc-shaped clearance groove 31 is exactly the same.

[0055] It is known that the thickness of the cover plate 2 is 0.6mm. Therefore, in order to avoid the arc-shaped clearance groove 31 affecting the strength of the cover plate 2, the thickness of the first curved edge 221 is set to T, and the maximum depth of the arc-shaped clearance groove 31 in the thickness direction of the first curved edge 221 is set to T. max , among which, T max Less than 1 / 3*T.

[0056] Furthermore, combined Figure 6 and Figure 2 In the extending direction of the first curved edge 221, the width of the overlapping area 222a is set to W1; the fitting tolerance between the bent portion 12 and the arc-shaped clearance groove 31 is set to X; in the extending direction of the first curved edge 221, the width of the arc-shaped clearance groove 31 is set to W2, and W2 is greater than the sum of W1 and X. Thus, the arc-shaped clearance groove 31 is ensured to have sufficient width in the extending direction of the first curved edge 221 to avoid the bent portion 12.

[0057] This application does not impose specific limitations on the width W1 of the overlapping area 222a, and the specific value can be determined according to the actual product. This application also does not impose specific limitations on the fitting tolerance between the bent portion 12 and the arc-shaped clearance groove 31, and the specific value can be determined according to the actual product. In one embodiment, the maximum width W1 of the overlapping area 222a is 2mm, and the fitting tolerance X between the bent portion 12 and the arc-shaped clearance groove 31 is greater than or equal to 0.2mm.

[0058] Please see Figure 7 Based on the aforementioned "the inner wall of the arc-shaped clearance groove 31 is flush with the inner wall of the first curved edge 221", on the side away from the first curved edge 221, although there is no step difference between the inner wall of the arc-shaped clearance groove 31 and the inner wall of the first curved edge 221, there is a large step difference between the inner wall of the arc-shaped clearance groove 31 and the inner wall 2221 of the first corner 222. In order to ensure a smooth transition between the inner wall of the arc-shaped clearance groove 31 and the inner wall 2221 of the first corner 222, in this embodiment, an arc-shaped transition surface 32 is provided at the junction of the inner wall 2221 of the first corner 222 and the inner wall of the arc-shaped clearance groove 31. The arc-shaped transition surface 32 connects the compensation surface 3a and the inner wall 2221 of the first corner 222, making the inner wall 2221 of the first corner 222 smoother.

[0059] As stated above, please refer to Figure 5 Taking the case where the radius of curvature of the first corner 222 is greater than that of the first curved edge 221 as an example, the curved portion further includes a second curved edge 226 and a second corner 227 connecting the second curved edge 226; the other of the two short curved edges 224 is set as the second curved edge 226, and the two arc-shaped corners 225 connected to the second curved edge 226 are set as the second corner 227; the second curved edge is arranged opposite to the first curved edge 221 in the second direction F2; wherein, the radius of curvature of the inner wall of the second corner 227 is greater than or less than the radius of curvature of the compensation surface 3a. That is to say, after the inner wall 2221 of the first corner 222 is grooved, at least at the position of the overlapping area 222a, the radius of curvature of the inner wall 2221 of the first corner 222 is not the same as the radius of curvature of the inner wall of the second corner 227.

[0060] Please see Figure 8In another embodiment of this application, the inner wall 2221 of the first corner 222 is provided with a filling layer 33. At the position corresponding to the overlapping area 222a, the bending radius of the inner surface of the filling layer 33 is the same as the bending radius of the inner wall of the first curved edge 221, and the inner surface of the filling layer 33 is flush with the inner wall of the first curved edge 221. The compensation part 3 includes the filling layer 33, and the compensation surface 3a includes the inner surface of the filling layer 33.

[0061] When the bending radius of the arc-shaped corner 225 is smaller than that of the long curved edge 223 or the short curved edge 224, that is, the inner wall of the arc-shaped corner 225 is concave compared to the long curved edge 223 or the short curved edge 224, the starting points of the bending portion 12 at the arc-shaped corner 225 and the short curved edge 224 are not on the same plane. This results in different tensile forces on the bending portion 12 at the arc-shaped corner 225 and the short curved edge 224, thereby reducing the stability of the display portion 11. By filling the inner side of the first corner 222 with the filling layer 33, the bending radius of the inner surface of the filling layer 33 is the same as the bending radius of the inner wall of the first curved edge 221. When the bent part 12 is bent, the bending part 12 experiences the same tension at the first curved edge 221 and the compensation surface 3a, thereby making the bending part 12 uniformly stressed and improving the stability of the display part 11.

[0062] In this embodiment, the filling layer 33 is made of optically transparent adhesive or silicone gel. However, the material of the filling layer 33 is not limited to these, and no specific limitation is made here.

[0063] This application does not impose specific limitations on the formation method of the filling layer 33. In some embodiments, the inner wall 2221 of the first corner 222 of the cover plate 2 is first filled with adhesive to compensate for the bending radius of the inner wall 2221 of the first corner 222, and then the display panel is attached. In another embodiment, the display panel 1 and the cover plate are attached first, and then the bending portion 12 is bent. When it is found that the distance between the inner wall 2221 of the first corner 222 and the bending portion 12 at the position corresponding to the overlapping area 222a is large, the inner wall 2221 of the first corner 222 can be filled by locally injecting adhesive into the overlapping area 222a, thereby compensating for the bending radius of the inner wall 2221 of the first corner 222.

[0064] Secondly, embodiments of this application also provide a display device. The display device includes a display module 100. It should be noted that the display module 100 is configured as described above, that is, the display module 100 includes all the technical features of the display module 100 described above, and the display device includes all the embodiments of the display module 100 described above, thus possessing all the technical effects of the above embodiments, which will not be elaborated here.

[0065] The above provides a detailed description of a display module and display device provided in the embodiments of this application. 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 technical solutions and core ideas of this application. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A display module, characterized in that, include: A display panel includes a display part, a bending part, and a binding part. The binding part is located on the back side of the display part, and the bending part connects the display part and the binding part. as well as, The cover plate includes a flat plate portion and a curved portion surrounding the periphery of the flat plate portion. The flat plate portion is located on the light-emitting side of the display portion, and the curved portion extends toward the back side of the display portion. The curved portion includes a first curved edge disposed opposite to the bent portion and a first corner connecting the first curved edge. The first corner has an overlapping area corresponding to the position of the bend. A compensation part is provided on the inner side of the first corner. The compensation part forms a compensation surface at the position corresponding to the overlapping area. At least at the position near the first curved edge, the bending radius of the compensation surface is the same as the bending radius of the inner wall of the first curved edge. On the side near the first curved edge, the compensation surface is flush with and intersects the inner wall of the first curved edge. On the side away from the first curved edge, along the thickness direction of the first curved edge, a step is formed between the compensation surface and the inner wall of the first curved edge, the step being set as follows: H, where H is greater than or equal to 0 and less than 50 μm.

2. The display module as described in claim 1, characterized in that, The radius of curvature of the compensation surface is the same as the radius of curvature of the inner wall of the first curved edge, and the compensation surface is flush with the inner wall of the first curved edge.

3. The display module as described in claim 1, characterized in that, The radius of curvature of the inner wall of the first corner is greater than the radius of curvature of the inner wall of the first curved edge; At the location corresponding to the overlapping area, an arc-shaped clearance groove is provided on the inner wall of the first corner. The radius of curvature of the inner wall of the arc-shaped clearance groove is the same as the radius of curvature of the inner wall of the first curved edge, and the inner wall of the arc-shaped clearance groove is flush with the inner wall of the first curved edge. The compensation part includes the arc-shaped clearance groove, and the compensation surface includes the inner wall of the arc-shaped clearance groove.

4. The display module as described in claim 3, characterized in that, The thickness of the first curved edge is set to T; In the thickness direction of the first curved edge, the maximum depth of the arc-shaped clearance groove is set to T. max , among which, T max Less than 1 / 3*T.

5. The display module as described in claim 3, characterized in that, The inner wall of the first corner has an arc-shaped transition surface at the junction with the inner wall of the arc-shaped clearance groove.

6. The display module as described in claim 3, characterized in that, In the extension direction of the first curved edge, the width of the overlapping area is set to W1; The fitting tolerance between the bent portion and the arc-shaped clearance groove is set to X; In the extension direction of the first curved edge, the width of the arc-shaped clearance groove is set to W2, and W2 is greater than the sum of W1 and X.

7. The display module as described in claim 1, characterized in that, The radius of curvature of the inner wall of the first corner is smaller than the radius of curvature of the inner wall of the first curved edge; The inner wall of the first corner is provided with a filling layer, the radius of curvature of the inner surface of the filling layer is the same as the radius of curvature of the inner wall of the first curved edge, and the inner surface of the filling layer is flush with the inner wall of the first curved edge. The compensation part includes the filling layer, and the compensation surface includes the inner surface of the filling layer located in the overlapping area.

8. The display module as described in claim 1, characterized in that, The curved portion further includes a second curved edge and a second corner connecting the second curved edge, wherein the second curved edge is disposed opposite to the first curved edge in a second direction; Wherein, the radius of curvature of the inner wall of the second corner is greater than or less than the radius of curvature of the compensation surface.

9. A display device, characterized in that, Includes the display module as described in any one of claims 1-8.

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