Display module and display equipment

Abstract

The utility model discloses a display module and display equipment, and belongs to the technical field of display. The display module comprises a display panel, a first cover plate, a second cover plate and a filling part. The display panel can be folded or unfolded through the bending area of the display panel, and the outer side face of the second cover plate located on the side, away from the display panel, of the first cover plate protrudes out of the outer side face of the first cover plate. The filling part is located on the outer side face of the first cover plate and distributed between the second cover plate and the display panel, and the filling part is at least distributed in the bending area of the display panel. Therefore, in the bending area of the display panel, the filling part can fill the offset between the outer side face of the first cover plate and the outer side face of the second cover plate, so that the part, located in the bending area, of the outer side face of the first cover plate can be covered by the filling part. In this way, the possibility that bubbles are generated on the outer side face of the first cover plate in the process that the display panel is bent through the bending area is avoided, and the reliability of the display module is guaranteed.

Description

Technical Field

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

[0002] The display module in the display device may include: a display panel, a first cover plate, and a second cover plate. The display panel may be used to display images, the first cover plate and the second cover plate may be stacked on the display side of the display panel, and the first cover plate and the second cover plate may both be used to protect the display panel. The display panel and the first cover plate, as well as the first cover plate and the second cover plate, may be connected together by optical adhesive.

[0003] At present, in order to achieve a narrow frame of the display module, after the display panel, the first cover plate and the second cover plate are connected together, the edge of the display module needs to be cut to remove the edge portion of the display module. The first cover plate is easy to break, and in order to protect the first cover plate, the first cover plate can be retracted relative to the second cover plate to prevent the first cover plate from being cut.

[0004] However, currently, after the first cover plate is retracted relative to the second cover plate, bubbles are more likely to be generated between the edge of the first cover plate and the optical adhesive, resulting in a reduced life of the display module. Utility Model Content

[0005] The embodiment of the present application provides a display module and a display device, which can solve the problem that bubbles are easily generated on the outer side of the first cover plate in the display module of the prior art. The technical solution is as follows:

[0006] In one aspect, a display module is provided, comprising: a display panel, a first cover plate, a second cover plate and a filling portion;

[0007] The display panel has a bending area;

[0008] The first cover plate is located on the display side of the display panel;

[0009] The second cover plate is located on a side of the first cover plate away from the display panel, and an outer side surface of the second cover plate protrudes from an outer side surface of the first cover plate;

[0010] The filling portion is located on the outer side of the first cover plate and is distributed between the second cover plate and the display panel;

[0011] Wherein, the filling portion is distributed at least in the bending area.

[0012] Optionally, the filling portion includes: a main body portion and an overflow portion connected to each other; the main body portion is located on an outer side of the first cover plate, and the overflow portion is at least located on a side of the main body portion facing away from the second cover plate.

[0013] Optionally, the maximum distance between the side of the overflow portion facing away from the second cover plate and the side of the first cover plate facing away from the second cover plate is less than or equal to the thickness of the first cover plate.

[0014] Optionally, the maximum distance between the side of the overflow portion facing away from the second cover plate and the side of the first cover plate facing away from the second cover plate is less than or equal to 30 microns, and the thickness of the first cover plate ranges from 20 microns to 50 microns.

[0015] Optionally, the overflow portion includes: a first sub-overflow portion and a second sub-overflow portion; the first sub-overflow portion is located on the side of the body portion facing away from the second cover plate, and the second sub-overflow portion is located on the side of the first cover plate facing away from the second cover plate.

[0016] Optionally, the distance between the side of the second sub-overflow portion facing away from the second cover plate and the side of the first cover plate facing away from the second cover plate gradually decreases to zero along the direction from the first sub-overflow portion towards the second sub-overflow portion.

[0017] Optionally, the included angle between the side of the second sub-overflow portion facing away from the second cover plate and the side of the first cover plate facing away from the second cover plate ranges from 0° to 90°.

[0018] Optionally, in the direction parallel to the bending axis of the bending region, the ratio of the maximum width of the second sub-overflow portion to the maximum width of the body portion is less than or equal to 1.5.

[0019] Optionally, in the direction parallel to the bending axis of the bending region, the maximum width of the second sub-overflow portion is less than or equal to 0.45 mm, and the maximum width of the body portion ranges from 0.3 mm to 1.5 mm.

[0020] Optionally, there are grooves on the outer side surface of the first cover plate, and the grooves are at least located within the bending region;

[0021] Wherein, at least a part of the filling portion is located within the grooves.

[0022] Optionally, in the direction parallel to the extension direction of the bending axis of the bending region, the maximum width of the body portion of the filling portion is greater than or equal to the maximum width of the grooves.

[0023] Optionally, in the direction parallel to the bending axis of the bending region, the maximum width of the grooves ranges from 0.3 mm to 0.8 mm.

[0024] Optionally, in the direction parallel to the display side of the display panel and perpendicular to the bending axis of the bending region, the length of the grooves is greater than or equal to the width of the bending region;

[0025] And on the display side parallel to the display panel and in the direction perpendicular to the bending axis of the bending area, the length of the filling part is less than the length of the groove and greater than or equal to the width of the bending area; or, the length of the filling part is greater than or equal to the length of the groove.

[0026] Optionally, on the display side parallel to the display panel and in the direction perpendicular to the bending axis of the bending area, the difference between the length of the groove and the width of the bending area is less than or equal to 10 millimeters.

[0027] Optionally, the display panel includes: two bending areas, one of the two bending areas is an inner bending area and the other is an outer bending area; the groove located on the outer side surface of the first cover plate and at least distributed in the inner bending area is the first groove, and the groove located on the outer side surface of the first cover plate and at least distributed in the outer bending area is the second groove;

[0028] Wherein, on the display side parallel to the display panel and in the direction perpendicular to the bending axis of the bending area, the width of the inner bending area is less than the width of the outer bending area, and the length of the first groove is less than the length of the second groove.

[0029] Optionally, on the display side parallel to the display panel and in the direction perpendicular to the bending axis of the bending area, the length of the first groove ranges from 10 millimeters to 15 millimeters, and the length of the second groove ranges from 12 millimeters to 18 millimeters.

[0030] Optionally, the orthographic projection of the first cover plate on the second cover plate is located within the area surrounded by the outer side surface of the second cover plate, and the distance between the outer side surface of the first cover plate and the outer side surface of the second cover plate ranges from 0.1 millimeter to 0.3 millimeter.

[0031] Optionally, the display module further includes: a first colloid layer and a second colloid layer, the first colloid layer is located between the first cover plate and the second cover plate, and the second colloid layer is located between the first cover plate and the display panel;

[0032] Wherein, all of the filling part is located between the first colloid layer and the second colloid layer;

[0033] Or, a part of the filling part is located between the first colloid layer and the second colloid layer, and the other part is located between the second cover plate and the display panel;

[0034] Or, the filling part is at least located between the second cover plate and the second colloid layer.

[0035] Optionally, the filling part is made of at least one of a transparent material, a reflective material, and an absorptive material.

[0036] On the other hand, a display device is also provided, including: a folding housing, and a display module connected to the folding housing, where the display module is any one of the above display modules.

[0037] The beneficial effects brought by the technical solution provided by the embodiments of the present application at least include:

[0038] The display panel in the display module can be folded or unfolded through the bending area of the display panel. The first cover plate and the second cover plate can be folded along with the folding of the display panel, and the outer side surface of the second cover plate located on the side of the first cover plate facing away from the display panel protrudes from the outer side surface of the first cover plate. The filling part can be located on the outer side surface of the first cover plate and can be distributed between the second cover plate and the display panel. Among them, the filling part in the display module can be at least distributed in the bending area of the display panel. In this way, in the bending area of the display panel, the filling part can fill the step difference between the outer side surface of the first cover plate and the outer side surface of the second cover plate, so as to ensure that the part of the outer side surface of the first cover plate located in the bending area can be covered by the filling part. In this way, during the bending process of the display panel through the bending area, no void will be generated between the part of the outer side surface of the first cover plate located in the bending area and the second cover plate, thereby avoiding the possibility of generating bubbles on the outer side surface of the first cover plate and ensuring the reliability of the display module. Description of the Drawings

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0040] Figure 1 is a top view of a display module provided by an embodiment of the present application;

[0041] Figure 2 is Figure 1 a cross-sectional view of the shown display module taken along line A-A';

[0042] Figure 3 is a top view of a display module provided by another embodiment of the present application;

[0043] Figure 4 is a top view of another display module provided by an embodiment of the present application;

[0044] Figure 5 is Figure 4 a cross-sectional view of the shown display module taken along line B-B';

[0045] Figure 6 It is a top view of another display module provided by an embodiment of the present application;

[0046] Figure 7 is Figure 6 a cross-sectional view of the display module shown at C-C';

[0047] Figure 8 It is a top view of yet another display module provided by an embodiment of the present application;

[0048] Figure 9 It is a top view of another display module provided by another embodiment of the present application;

[0049] Figure 10 It is a top view of a display module provided by another embodiment of the present application;

[0050] Figure 11 It is a top view of yet another display module provided by another embodiment of the present application;

[0051] Figure 12 It is a top view of yet another display panel provided by another embodiment of the present application;

[0052] Figure 13 It is a top view of another display module provided by another embodiment of the present application;

[0053] Figure 14 It is a top view of yet another display module provided by another embodiment of the present application;

[0054] Figure 15 It is a top view of yet another display module provided by another embodiment of the present application;

[0055] Figure 16 It is a cross-sectional view of the film layer of a display module provided by an embodiment of the present application;

[0056] Figure 17 It is a cross-sectional view of the film layer of another display module provided by an embodiment of the present application;

[0057] Figure 18 It is a cross-sectional view of the film layer of yet another display module provided by an embodiment of the present application;

[0058] Figure 19 It is a cross-sectional view of the film layer of yet another display module provided by an embodiment of the present application;

[0059] Figure 20 It is a cross-sectional view of the film layer of a display module provided by another embodiment of the present application;

[0060] Figure 21It is a cross-sectional view of the film layer of another display module provided by another embodiment of the present application;

[0061] Figure 22 It is a cross-sectional view of the film layer of yet another display module provided by another embodiment of the present application;

[0062] Figure 23 It is a cross-sectional view of the film layer of still another display module provided by another embodiment of the present application;

[0063] Figure 24 It is a cross-sectional view of the film layer of a display module provided by yet another embodiment of the present application;

[0064] Figure 25 It is a cross-sectional view of the film layer of another display module provided by yet another embodiment of the present application. Detailed implementation manners

[0065] To make the objectives, technical solutions, and advantages of the present application clearer, the following will further describe the embodiments of the present application in detail with reference to the accompanying drawings.

[0066] The embodiments of the present application provide a display module. Please refer to Figure 1 and Figure 2 , Figure 1 is a top view of a display module provided by an embodiment of the present application, Figure 2 is Figure 1 The cross-sectional view of the display module shown at A-A'. The display module 000 may include: a display panel 100, a first cover plate 200, a second cover plate 300, and a filling portion 400.

[0067] The display panel 100 in the display module 000 has a bending area P. The display panel 100 can be folded or unfolded through the bending area P. That is to say, the display panel 100 can be a foldable display panel, and thus the display module 000 having the display panel 100 can be a foldable display module.

[0068] The first cover plate 200 in the display module 000 can be located on the display side of the display panel 100. Here, the display side of the display panel 100 in the display module 000 can be used to display a picture, and the first cover plate 200 can protect the display side of the display panel 100. By way of example, the first cover plate 100 in the display module 000 can be an ultra-thin flexible glass cover plate (English name: Ultra-Thin Glass, abbreviated as: UTG). In this way, the first cover plate 100 not only has high hardness to protect the display panel 100, but also can have good flexibility to fold along with the folding of the display panel 100.

[0069] The second cover plate 300 in the display module 000 can be located on the side of the first cover plate 200 away from the display panel 100, and the outer side surface of the second cover plate 300 can protrude from the outer side surface of the first cover plate 200. That is, the orthographic projection of the first cover plate 200 in the display module 000 on the second cover plate 300 can be located within the area enclosed by the outer side surface of the second cover plate 300. Here, the second cover plate 300 in the display module 000 can be made of polyethylene terephthalate (English name: Polyethylene terephthalate, abbreviated as PET) or polyimide (Polyimide, abbreviated as CPI). The second cover plate 300 can protect the first cover plate 200 and the display panel 100, and the second cover plate 300 can be folded along with the folding of the display panel 100.

[0070] Here, in the direction perpendicular to the display side of the display panel 100, the first cover plate 200 can have two opposite upper and lower surfaces, and the outer side surface of the first cover plate 200 is the side surface located between these two surfaces of the first cover plate 200. Similarly, the second cover plate 300 can have two opposite upper and lower surfaces, and the outer side surface of the second cover plate 300 is the side surface located between these two surfaces of the second cover plate 300.

[0071] It should be noted that during the manufacturing process of the display module 000, the outer side surface of the second cover plate 300 in the display module 000 can always protrude from the outer side surface of the first cover plate 200. In this way, during the process of cutting the edge of the display module 000, the edge of the first cover plate 200 will not be cut, so as to ensure that the first cover plate 200 will not generate cracks.

[0072] The filling part 400 in the display module 000 can be located on the outer side surface of the first cover plate 200 and can be distributed between the second cover plate 300 and the display panel 100. Among them, the filling part 400 in the display module 000 can be at least distributed in the bending area P of the display panel 100. In this way, in the bending area P of the display panel 100, the filling part 400 can fill the step difference between the outer side surface of the first cover plate 200 and the outer side surface of the second cover plate 300, so as to ensure that the part of the outer side surface of the first cover plate 200 located in the bending area P can be covered by the filling part 400. For this reason, during the process of bending the display panel 100 through the bending area P, no void will be generated between the part of the outer side surface of the first cover plate 200 located in the bending area P and the second cover plate 300, thereby avoiding the possibility of generating bubbles on the outer side surface of the first cover plate 200 and ensuring the reliability of the display module 000.

[0073] It should be noted that the distribution of the filling part 400 on the outer side surface of the first cover plate 200 in the display module 000 can have the following two situations:

[0074] like Figure 3 As shown, Figure 3 This is a top view of a display module provided by another embodiment of the present application. In the first case, the filling portion 400 in the display module 000 can be located on the entire outer side of the first cover plate 200, that is, the filling portion 400 can cover the entire outer side surface of the first cover plate 200 to fill the gap between the entire outer side surface of the first cover plate 200 and the entire outer side surface of the second cover plate 300.

[0075] In the second case, if Figure 1 As shown, since the portion of the outer side surface of the first cover plate 200 located in the bending zone P is the main location for generating bubbles, for this reason, the filling portion 400 in the display module 000 can be located only on the portion of the outer side surface of the first cover plate 200 located around the bending zone P, so as to fill the gap between the outer side surface of the first cover plate 200 located in the bending zone P and the outer side surface of the second cover plate 300 located in the bending zone P, thereby ensuring that only the portion of the outer side surface of the first cover plate 200 located in the bending zone P can be covered by the filling portion 400.

[0076] In summary, the embodiment of the present application provides a display module, including: a display panel, a first cover plate, a second cover plate and a filling portion. The display panel can be folded or unfolded through the bending area of ​​the display panel, the first cover plate and the second cover plate can be folded as the display panel is folded, and the outer side surface of the second cover plate located on the side of the first cover plate away from the display panel protrudes from the outer side surface of the first cover plate. The filling portion can be located on the outer side surface of the first cover plate and can be distributed between the second cover plate and the display panel. Among them, the filling portion in the display module can be distributed at least in the bending area of ​​the display panel. In this way, in the bending area of ​​the display panel, the filling portion can fill the gap between the outer side surface of the first cover plate and the outer side surface of the second cover plate to ensure that the portion of the outer side surface of the first cover plate located in the bending area can be covered by the filling portion. In this way, in the process of bending the display panel through the bending area, the portion of the outer side surface of the first cover plate located in the bending area will not generate a cavity between the second cover plate, thereby avoiding the possibility of bubbles at the outer side surface of the first cover plate, and ensuring the reliability of the display module.

[0077] Optional, such as Figure 4 and Figure 5 As shown, Figure 4 is a top view of another display module provided in an embodiment of the present application, Figure 5 yes Figure 4Cross-sectional view of the shown display module at B-B'. The filling part 400 in the display module 000 may include: a connected main body part 401 and an overflow part 402. The main body part 401 in the filling part 400 may be located on the outer side surface of the first cover plate 200, and the overflow part 402 in the filling part 400 may be at least located on the side of the main body part 401 facing away from the second cover plate 300.

[0078] Exemplarily, the side of the main body part 401 in the filling part 400 facing away from the second cover plate 300 may be flush with the side of the first cover plate 200 facing away from the second cover plate 300. That is, the main body part 401 may completely cover the outer side surface of the first cover plate 200. And the overflow part 402 at least located on the side of the main body part 401 facing away from the second cover plate 300 may further cover the outer side surface of the first cover plate 200 to ensure that the step difference between the outer side surface of the first cover plate 200 and the outer side surface of the second cover plate 300 can be completely filled by the filling part 400.

[0079] Optionally, as Figure 5 shown, the maximum distance D2 between the side of the overflow part 402 in the filling part 400 facing away from the second cover plate 300 and the side of the first cover plate 200 facing away from the second cover plate 300 may be less than or equal to the thickness D1 of the first cover plate 200.

[0080] Optionally, as Figure 5 shown, the maximum distance D2 between the side of the overflow part 402 in the filling part 400 facing away from the second cover plate 300 and the side of the first cover plate 200 facing away from the second cover plate 300 may be less than or equal to 30 micrometers, and the range of the thickness D1 of the first cover plate 200 may be from 20 micrometers to 50 micrometers. Exemplarily, the thickness D1 of the first cover plate 200 may be 30 micrometers.

[0081] It should be noted that during the manufacturing process of the display module 000, the size of the overflow part 402 in the filling part 400 may vary due to different manufacturing processes, so that the maximum distance D2 between the side of the overflow part 402 facing away from the second cover plate 300 and the side of the first cover plate 200 facing away from the second cover plate 300 is less than or equal to 10 micrometers.

[0082] In a possible case, the maximum distance D2 between the side of the overflow part 402 facing away from the second cover plate 300 and the side of the first cover plate 200 facing away from the second cover plate 300 is zero. That is, the filling part 400 may only include the main body part 401 located on the outer side surface of the first cover plate 200, and the main body part 401 in the filling part 400 may cover the outer side surface of the first cover plate 200.

[0083] In another possible case, the maximum distance D2 between the side of the overflow portion 402 facing away from the second cover plate 300 and the side of the first cover plate 200 facing away from the second cover plate 300 can be greater than 0 and less than or equal to 10 micrometers. In this way, the overflow portion 402 in the filling portion 400 can further cover the outer side surface of the first cover plate 200, so as to ensure that the step difference between the outer side surface of the first cover plate 200 and the outer side surface of the second cover plate 300 can be completely filled by the filling portion 400.

[0084] Optionally, please refer to Figure 6 and Figure 7 , Figure 6 is a top view of another display module provided by an embodiment of the present application. Figure 7 is Figure 6 a cross-sectional view of the display module shown at C-C'. The overflow portion 402 in the filling portion 400 can include: a first sub-overflow portion 4021 and a second sub-overflow portion 4022. The first sub-overflow portion 4021 in the overflow portion 402 can be located on the side of the body portion 401 facing away from the second cover plate 300, and the second sub-overflow portion 4022 in the overflow portion 402 can be located on the side of the first cover plate 200 facing away from the second cover plate 300. In this way, the body portion 401, the first sub-overflow portion 4021, and the second sub-overflow portion 4022 in the filling portion 400 can wrap the outer side surface of the first cover plate 200, which further ensures that the step difference between the outer side surface of the first cover plate 200 and the outer side surface of the second cover plate 300 can be completely filled by the filling portion 400.

[0085] Optionally, as Figure 7 shown, the distance between the side of the second sub-overflow portion 4022 in the overflow portion 402 facing away from the second cover plate 300 and the side of the first cover plate 200 facing away from the second cover plate 300 can gradually decrease to zero along the direction of the first sub-overflow portion 4021 towards the second sub-overflow portion 4022.

[0086] Optionally, as Figure 7 shown, the range of the angle A between the side of the second sub-overflow portion 4022 in the overflow portion 402 facing away from the second cover plate 300 and the side of the first cover plate 200 facing away from the second cover plate 300 can be from 0° to 90°. Preferably, the range of the angle A between the side of the second sub-overflow portion 4022 in the overflow portion 402 facing away from the second cover plate 300 and the side of the first cover plate 200 facing away from the second cover plate 300 can be from 0° to 45°. Exemplarily, the angle A between the side of the second sub-overflow portion 4022 in the overflow portion 402 facing away from the second cover plate 300 and the side of the first cover plate 200 facing away from the second cover plate 300 can be 15°, 20°, 25°, 30°, or 45°, etc.

[0087] Optionally, as Figure 6 and Figure 7As shown, in the direction parallel to the bending axis of the bending region P, the ratio of the maximum width H2 of the second sub-overflow portion 4022 in the overflow portion 402 to the maximum width H1 of the main body portion 401 is less than or equal to 1.5.

[0088] Optionally, as Figure 5 and Figure 6 shown, in the direction parallel to the bending axis of the bending region P, the maximum width H2 of the second sub-overflow portion 4022 in the overflow portion 402 is less than or equal to 0.45 mm, and the range of the maximum width H1 of the main body portion 401 is from 0.3 mm to 1.5 mm.

[0089] It should be noted that, similarly, during the manufacturing process of the display module 000, the size of the overflow portion 402 in the filling portion 400 may vary due to different manufacturing processes. When the maximum distance D2 between the side of the overflow portion 402 facing away from the second cover plate 300 and the side of the first cover plate 200 facing away from the second cover plate 300 is greater than 0 and less than or equal to 10 μm, and the width H2 of the second overflow portion 4022 in the overflow portion 402 is equal to 0, the overflow portion 402 may only include the first overflow portion 4021 located on the side of the main body portion 401 facing away from the second cover plate 300, and the first overflow portion 4021 may further cover the outer side surface of the first cover plate 200. When the maximum distance D2 between the side of the overflow portion 402 facing away from the second cover plate 300 and the side of the first cover plate 200 facing away from the second cover plate 300 is greater than 0 and less than or equal to 10 μm, and the width H2 of the second overflow portion 4022 in the overflow portion 402 is greater than 0 and less than 0.45 mm, the overflow portion 402 may further include the second overflow portion 4022 located on the side of the first cover plate 200 facing away from the second cover plate 300. In this way, the main body portion 401, the first sub-overflow portion 4021, and the second sub-overflow portion 4022 in the filling portion 400 can wrap the outer side surface of the first cover plate 200, which further ensures that the step difference between the outer side surface of the first cover plate 200 and the outer side surface of the second cover plate 300 can be completely filled by the filling portion 400.

[0090] Optionally, please refer to Figure 8 , Figure 8It is a top view of another display module provided by an embodiment of the present application. A groove K may be provided on the outer side surface of the first cover plate 200 in the display module 000, and the groove K of the first cover plate 200 is at least located within the bending area P. Among them, at least a part of the filling portion 400 is located within the groove K of the first cover plate 200. That is to say, the part of the filling portion 400 located within the groove K of the first cover plate 200 may cover the contour of the groove K. In this way, the filling portion 400 may cover the part of the outer side surface of the first cover plate 200 located within the bending area P. Here, in the direction perpendicular to the display side of the display panel 100, the groove K on the outer side surface of the first cover plate 200 may completely penetrate through the upper and lower surfaces of the first cover plate 200.

[0091] It should be noted that in the present application, there are two cases where the outer side surface of the first cover plate 200 may have a groove K on the outer side surface of the first cover plate 200, or the outer side surface of the first cover plate 200 does not have a groove K.

[0092] As Figure 9 shown, Figure 9 It is a top view of another display module provided by another embodiment of the present application. In the case where the outer side surface of the first cover plate 200 does not have a groove K, the filling portion 400 may be directly located on the part of the outer side surface of the first cover plate 200 located within the bending area P.

[0093] As Figure 8 shown, in the case where the outer side surface of the first cover plate 200 has a groove K, at least a part of the groove K may be directly located within the bending area P, and at least a part of the filling portion 400 may be located within the groove K. In this way, compared with the case where the outer side surface of the first cover plate 200 does not have a groove K, in the case where the outer side surface of the first cover plate 200 has a groove K, at least a part of the filling portion 400 may be located within the groove K. Thus, during the manufacturing process of the filling portion 400, it is only necessary to fill the filling portion 400 within the groove K, which facilitates the manufacturing of the filling portion 400. The following embodiments will be described by taking the case where the outer side surface of the first cover plate 200 has a groove K as an example for illustration.

[0094] Optionally, as Figure 6 and Figure 8 shown, in the extending direction parallel to the bending axis of the bending area P, the maximum width H1 of the main body portion 401 in the filling portion 400 may be greater than or equal to the maximum width H3 of the groove K of the first cover plate 200. In this way, in the extending direction parallel to the bending axis of the bending area P, the groove K of the first cover plate 200 may be filled with the main body portion 401, and the main body portion 401 has at least a part located outside the groove K of the first cover plate 200. In this way, it is ensured that the part of the outer side surface of the first cover plate 200 located within the bending area P can be covered by the main body portion 401.

[0095] Optionally, as Figure 6 and Figure 8 shown, in the direction parallel to the bending axis of the bending region P, the range of the maximum width H3 of the groove K of the first cover plate 200 is from 0.3 mm to 0.8 mm. Here, in the direction parallel to the bending axis of the bending region P, the range of the maximum width H1 of the main body portion 401 in the filling portion 400 is from 0.3 mm to 1.5 mm. In this way, it is ensured that in the extending direction of the bending axis parallel to the bending region P, the maximum width H1 of the main body portion 401 in the filling portion 400 can be greater than or equal to the maximum width H3 of the groove K of the first cover plate 200.

[0096] Optionally, as Figure 8 and Figure 10 shown, Figure 10 is a top view of a display module provided by another embodiment of the present application. In the direction parallel to the display side of the display panel 100 and perpendicular to the bending axis of the bending region P, the length L1 of the groove K of the first cover plate 200 can be greater than or equal to the width L2 of the bending region P.

[0097] Here, in the direction parallel to the display side of the display panel 100 and perpendicular to the bending axis of the bending region P, the length L3 of the filling portion 400 can have the following two situations: as Figure 8 shown, in the first situation of the filling portion 400, the length L3 of the filling portion 400 can be less than the length L1 of the groove K and greater than or equal to the length L2 of the bending region P. As Figure 10 shown, in the second situation of the filling portion 400, the length L3 of the filling portion 400 can be greater than or equal to the length L1 of the groove K.

[0098] In this way, in the direction parallel to the display side of the display panel 100 and perpendicular to the bending axis of the bending region P, whether in the first situation of the filling portion 400 or in the second situation of the filling portion, the length L3 of the filling portion 400 can be greater than or equal to the length L2 of the bending region P. In this way, it is ensured that the filling portion 400 located in the groove K can completely cover the part of the outer side surface of the first cover plate 200 located in the bending region P.

[0099] Optionally, in the direction parallel to the display side of the display panel 100 and perpendicular to the bending axis of the bending region P, the difference between the length L1 of the groove K of the first cover plate 200 and the width L2 of the bending region P can be less than or equal to 10 mm. By way of example, in the direction parallel to the display side of the display panel 100 and perpendicular to the bending axis of the bending region P, the distances between the two ends of the groove K and the two ends of the corresponding bending region P can be 5 mm respectively.

[0100] It should be noted that the display panel 100 in the display module may include at least one bending area P. In the above embodiments, the display panel 100 including one bending area P is taken as an example for illustrative purposes. One bending area P of the display panel 100 may be an inner bending area or an outer bending area, and the embodiments of the present application do not limit this. The following embodiments will take the display panel 100 including two bending areas P as an example for illustrative purposes. Please refer to Figure 11 , Figure 11 which is a top view of another display module provided by another embodiment of the present application. One of the two bending areas P of the display panel 100 may be an inner bending area P1, and the other may be an outer bending area P2.

[0101] Here, it should be noted that the inner bending area P1 of the display panel 100 is the bending area P where the display panel 100 makes the display side of the display panel 100 move relatively to fold or unfold through the inner bending area P1. The outer bending area P2 of the display panel 100 is the bending area P where the display panel 100 makes the back side of the display panel 100 move relatively to fold or unfold through the outer bending area P2. Here, the back side of the display panel 100 is the side opposite to the display side of the display panel 100. Therefore, the inner bending radius of the display panel 100 may be smaller than the outer bending radius of the display panel 100. Here, the range of the inner bending radius of the display panel 100 may be from 1 millimeter to 3 millimeters, and the range of the outer bending radius of the display panel 100 may be from 2 millimeters to 5 millimeters. For example, the inner bending radius of the display panel 100 may be 1.5 millimeters, and the outer bending radius of the display panel 100 may be 3 millimeters. Therefore, in the direction parallel to the display side of the display panel 100 and perpendicular to the bending axis of the bending area P, the width L21 of the inner bending area P1 of the display panel 100 may be smaller than the width L22 of the outer bending area P2 of the display panel 100.

[0102] In the present application, when the display panel 100 includes an inner bending area P1 and an outer bending area P2, the display panel 100 may be in a fully unfolded state, that is, both the inner bending area P1 and the outer bending area P2 of the display panel 100 are unfolded. Or, the display panel 100 may be in a semi-unfolded and semi-folded state, that is, one of the inner bending area P1 and the outer bending area P2 of the display panel 100 is folded and the other is unfolded. Or, the display panel 100 may be in a fully folded state, that is, both the inner bending area P1 and the outer bending area P2 of the display panel 100 are folded.

[0103] Optionally, the groove K located on the outer side of the first cover plate 200 and at least distributed within the inner bending region P1 may be the first groove K1, and the groove K located on the outer side of the first cover plate 200 and at least distributed within the outer bending region P2 may be the second groove K2. In the direction parallel to the display side of the display panel 100 and perpendicular to the bending axis of the bending region P, since the width L21 of the inner bending region P1 is less than the width L22 of the outer bending region P2, therefore, the length L11 of the first groove K1 at least distributed within the inner bending region P1 is less than the length L12 of the second groove K2 at least distributed within the outer bending region P2.

[0104] Here, the lengths L of the grooves K distributed in different bending regions P are different. As can be seen from the above, in the direction parallel to the display side of the display panel 100 and perpendicular to the bending axis of the bending region P, the difference between the length L1 of the groove K of the first cover plate 200 and the width L2 of the bending region P may be less than or equal to 10 millimeters. For this reason, the length L1 of the groove K distributed in different bending regions P can be determined according to the width L2 of the corresponding bending region P.

[0105] Optionally, in the direction parallel to the display side of the display panel 100 and perpendicular to the bending axis of the bending region P, the range of the length L11 of the first groove K1 at least distributed within the inner bending region P1 is from 10 millimeters to 15 millimeters, and the range of the length L12 of the second groove K2 at least distributed within the outer bending region P2 is from 12 millimeters to 18 millimeters. By way of example, the length L11 of the first groove K1 at least distributed within the inner bending region P1 may be 11.6 millimeters, and the length L12 of the second groove K2 at least distributed within the outer bending region P2 may be 14.6 millimeters.

[0106] It should be noted that, in the direction parallel to the display side of the display panel 100 and perpendicular to the bending axis of the bending region P, the length L3 of the filling portion 400 at least distributed within the groove K can be determined according to the length L1 of the corresponding groove K and the width L2 of the bending region P. And the filling portion 400 has the above two distribution situations within the groove K, that is, in the direction parallel to the display side of the display panel 100 and perpendicular to the bending axis of the bending region P, the length L3 of the filling portion 400 is less than the length L1 of the groove K and greater than or equal to the length L2 of the bending region P, or the length L3 of the filling portion 400 is greater than or equal to the length L1 of the groove K.

[0107] For this reason, in the direction parallel to the display side of the display panel 100 and perpendicular to the bending axis of the bending region P, the filling portion 400 at least distributed within the first groove K1 has the following two distribution situations: As Figure 11As shown, the length L3 of the filling portion 400 distributed at least in the first groove K1 may be less than the length L11 of the first groove K1 and greater than or equal to the width L21 of the inner bending region P1. Or, as Figure 12 shown, Figure 12 is a top view of another display panel provided by another embodiment of the present application. The length L3 of the filling portion 400 distributed at least in the first groove K1 may be greater than or equal to the length L11 of the first groove K1. Similarly, the filling portion 400 distributed at least in the second groove K2 has the following two distribution cases: As Figure 11 shown, the length L3 of the filling portion 400 distributed at least in the second groove K2 may be less than the length L12 of the second groove K2 and greater than or equal to the width L2 of the outer bending region P2. Or, as Figure 12 shown, the length L3 of the filling portion 400 distributed at least in the second groove K2 may be greater than or equal to the length L12 of the second groove K2.

[0108] It should be noted that regarding the two distribution cases of the filling portion 400 in the groove K, in the direction parallel to the display side of the display panel 100 and perpendicular to the bending axis of the bending region P, when the length L3 of the filling portion 400 is less than the length L1 of the groove K and greater than or equal to the length L2 of the bending region P, the difference between the length L3 of the filling portion 400 and the length L1 of the groove K may be less than or equal to 5 millimeters. For example, the distances between the two ends of the filling portion 400 and the two ends of the corresponding groove K may be 2.5 millimeters respectively. When the length L3 of the filling portion 400 is greater than or equal to the length L1 of the groove K, the difference between the length L3 of the filling portion 400 and the length L1 of the groove K may be less than or equal to 10 millimeters. For example, the distances between the two ends of the filling portion 400 and the two ends of the groove K may be 5 millimeters respectively.

[0109] Therefore, based on the two distribution cases of the filling portion 400 in the first groove K1 and the two distribution cases of the filling portion 400 in the second groove K2, in the direction parallel to the display side of the display panel 100 and perpendicular to the bending axis of the bending region P, the length L3 of the filling portion 400 may have two different length ranges of 13 millimeters to 18 millimeters and 17 millimeters to 22 millimeters.

[0110] In this way, in the direction parallel to the display side of the display panel 100 and perpendicular to the bending axis of the bending region P, based on the two distribution cases of the filling portion 400 in the first groove K1 and the two distribution cases of the filling portion 400 in the second groove K2, the distribution of the filling portion 400 in the groove K of the first cover plate 200 has the following four cases:

[0111] In the first case, as Figure 11As shown, the length L3 of the filling part 400 distributed at least in the first groove K1 is less than the length L11 of the first groove K1 and greater than or equal to the width L21 of the inner bending area P1. Here, the range of the length L3 of the filling part 400 can be from 13 mm to 18 mm. The length L3 of the filling part 400 distributed at least in the second groove K2 is less than the length L12 of the second groove K2 and greater than or equal to the width L22 of the outer bending area P2. Here, the range of the length L3 of the filling part 400 can be from 13 mm to 18 mm.

[0112] In the second case, as Figure 12 shown, the length L3 of the filling part 400 distributed at least in the first groove K1 is greater than or equal to the length L11 of the first groove K1. Here, the range of the length L3 of the filling part 400 can be from 17 mm to 22 mm. The length L3 of the filling part 400 distributed at least in the second groove K2 is greater than or equal to the length L12 of the second groove K2. Here, the range of the length L3 of the filling part 400 can be from 17 mm to 22 mm.

[0113] In the third case, as Figure 13 shown, Figure 13 is a top view of another display module provided by another embodiment of the present application. The length L3 of the filling part 400 distributed at least in the first groove K1 is less than the length L11 of the first groove K1 and greater than or equal to the width L21 of the inner bending area P1. Here, the range of the length L3 of the filling part 400 can be from 13 mm to 18 mm. The length L3 of the filling part 400 distributed at least in the second groove K2 is greater than or equal to the length L12 of the second groove K2. Here, the range of the length L3 of the filling part 400 can be from 17 mm to 22 mm.

[0114] In the fourth case, as Figure 14 shown, Figure 14 is a top view of yet another display module provided by another embodiment of the present application. The length L3 of the filling part 400 distributed at least in the first groove K1 is greater than or equal to the length L11 of the first groove K1. Here, the range of the length L3 of the filling part 400 can be from 17 mm to 22 mm. The length L3 of the filling part 400 distributed at least in the second groove K2 is less than the length L12 of the second groove K2 and greater than or equal to the width L22 of the outer bending area P2. Here, the range of the length L3 of the filling part 400 can be from 13 mm to 18 mm.

[0115] It should be noted that when the display panel in the display module 000 includes only one bending area P, in the direction parallel to the display side of the display panel 100 and perpendicular to the bending axis of the bending area P, the length L1 of the groove K distributed at least in the bending area P can be determined according to the width L2 of the bending area P. And the length L3 of the filling part 400 can be determined according to the length L1 of the groove K and two different cases of the distribution of the filling part 400 in the groove K. That is, as Figure 8 shown, the length L3 of the filling part 400 can be less than the length L1 of the groove K and greater than or equal to the length L2 of the bending area P, or as Figure 10 shown, the length L3 of the filling part 400 can be greater than or equal to the length L1 of the groove K.

[0116] In this application, as Figure 15 shown, Figure 15 is a top view of another display module provided by another embodiment of this application. The orthographic projection of the first cover plate 200 in the display module 000 on the second cover plate 300 can be located within the area enclosed by the outer side surfaces of the second cover plate 300, and the distance H4 between the outer side surface of the first cover plate 200 and the outer side surface of the second cover plate 300 ranges from 0.1 mm to 0.3 mm.

[0117] It should be noted that, as Figure 15 shown, in the direction parallel to the bending area P, the width B1 of the first cover plate 200 can range from 145 mm to 155 mm. For example, the width B1 of the first cover plate 200 can be 151 mm, then the width B2 of the second cover plate 300 can range from 145.1 mm to 155.3 mm. For example, the width B2 of the second cover plate 300 can be 151.3 mm. In the direction parallel to the display side of the display panel 100 and perpendicular to the bending axis of the bending area P, the length C1 of the first cover plate 200 can range from 205 mm to 220 mm. For example, the length C1 of the first cover plate 200 can be 216 mm, then the length C2 of the second cover plate 300 can range from 205.1 mm to 220.3 mm. For example, the length C2 of the second cover plate 300 can be 216.3 mm.

[0118] It should also be noted that during the manufacturing process of the display module 000, when the edge of the display module 000 is not cut, in the direction parallel to the bending area P, the width B2 of the second cover plate 300 can be 160 mm. In the direction parallel to the display side of the display panel 100 and perpendicular to the bending axis of the bending area P, the length C2 of the second cover plate 300 can be 219 mm.

[0119] In this application, please refer to Figure 16 , Figure 16It is a cross-sectional view of a film layer of a display module provided by an embodiment of the present application. The display module 000 may further include: a first colloid layer 500 and a second colloid layer 600. The first colloid layer 500 in the display module 000 may be located between the first cover plate 200 and the second cover plate 300, that is, the first colloid layer 500 may be used to connect the first cover plate 200 and the second cover plate 300. The second colloid layer 600 in the display module 000 may be located between the first cover plate 200 and the display panel 100, that is, the second colloid layer 600 may be used to connect the first cover plate 200 and the display panel 100.

[0120] It should be noted that the orthographic projection of the first cover plate 200 in the display module 000 on the first colloid layer 500 may be located within the area enclosed by the outer side surface of the first colloid layer 500, and the orthographic projection of the first cover plate 200 on the second colloid layer 600 may be located within the area enclosed by the outer side surface of the second colloid layer 600. And the orthographic projections of the first colloid layer 500 and the second colloid layer 600 on the second cover plate 300 may be located within the area enclosed by the outer side surface of the second cover plate 300. That is, the outer side surface of the first cover plate 200 may be located between the outer side surface of the second cover plate 300 and the outer side surface of the first colloid layer 500, and may be located between the outer side surface of the second cover plate 300 and the outer side surface of the second colloid layer 600.

[0121] It should also be noted that the overflow part 402 in the filling part 400 is at least distributed between the first cover plate 200 and the second colloid layer 600, and the second colloid layer 600 may cover the overflow part 402 in the filling part 400 to ensure the flatness of the connection between the first cover plate 200 and the display panel 100.

[0122] It should also be noted that according to the different distances between the outer side surface of the first colloid layer 500 and the outer side surface of the second cover plate 300, the filling part 400 in the display module 000 may have the following three different film layer structures:

[0123] In the first case, as Figure 17 shown, Figure 17 It is a cross-sectional view of a film layer of another display module provided by an embodiment of the present application. The outer side surface of the first colloid layer 500 may coincide with the outer side surface of the second colloid layer 600. The filling part 400 in the display module 000 may be entirely located between the first colloid layer 500 and the second colloid layer 600, and a part of the outer side surface of the filling part 400 may coincide with the outer side surface of the first colloid layer 500.

[0124] In the second case, as Figure 18 shown, Figure 18It is a cross-sectional view of the film layer of another display module provided by an embodiment of the present application. The outer side surface of the first colloid layer 500 can coincide with the outer side surface of the second colloid layer 600. A part of the filling portion 400 can be located between the first colloid layer 500 and the second colloid layer 600, and another part can be located between the second cover plate 300 and the display panel 100. That is to say, the part of the filling portion 400 located between the second cover plate 300 and the display panel 100 can at least cover the outer side surfaces of the first colloid layer 500 and the second colloid layer 600. In this way, the filling portion 400 can cover the outer side surfaces of the first colloid layer 500, the first cover plate 200, and the second colloid layer 600.

[0125] In the third case, as Figure 19 shown, Figure 19 It is a cross-sectional view of the film layer of yet another display module provided by an embodiment of the present application. The orthographic projection of the first colloid layer 500 on the second colloid layer 600 can be located within the area enclosed by the outer side surface of the second colloid layer 600, and the outer side surface of the first colloid layer 500 can coincide with the outer side surface of the first cover plate 200. The filling portion 400 is at least located between the second cover plate 300 and the second colloid layer 600. That is to say, at least part of the filling portion 400 can simultaneously cover the outer side surfaces of the first cover plate 200 and the first colloid layer 500.

[0126] Optionally, the filling portion 400 in the display module 000 can be made of at least one of a transparent material, a reflective material, and an absorptive material.

[0127] It should be noted that the first colloid layer 500 and the second colloid layer 600 in the display module 000 need to be made of a transparent material. For example, the first colloid layer 500 and the second colloid layer 600 can be made of an optical adhesive (English name: Optically Clear Adhesive, abbreviated as OCA), or the filling portion 400 can be made of an optical water glue (English name: Optical Clear Resin, abbreviated as OCR). Therefore, the filling portion 400 in the display module 000 can be made of a transparent material, such as OCR or OCA. That is to say, the filling portion 400 and the first colloid layer 500 can be made of the same transparent material.

[0128] It should also be noted that, as Figure 19As shown, when the filling portion 400 in the display module 000 is made of a light-absorbing material, such as ink, a part of the filling portion 400 can be located between the first colloid layer 500 and the second cover plate 300, so that the outer side surface of the first cover plate 200 can be located within the area surrounded by the outer side surface of the filling portion 400. In this way, the outer side surface of the first cover plate 200 can be blocked by the filling portion 400 made of a light-absorbing material, so as to ensure that the user cannot observe the outer side surface of the first cover plate 200 through the second cover plate 300.

[0129] Alternatively, as Figure 16 shown, when the filling portion 400 in the display module 000 is made of a transparent material, the display module 000 may further include: a light-absorbing layer 700. The light-absorbing layer 700 in the display module 000 can be located between the second cover plate 300 and the first colloid layer 500, and the outer side surface of the first cover plate 200 can be located within the area surrounded by the outer side surface of the light-absorbing layer 700. In this way, the outer side surface of the first cover plate 200 can be blocked by the light-absorbing layer 700, so as to ensure that the user cannot observe the outer side surface of the first cover plate 200 through the second cover plate 300.

[0130] It should also be noted that the part of the filling portion 400 located between the second cover plate 300 and the first colloid layer 500 can be covered by the first colloid layer 500, or the light-absorbing layer 700 in the display module 000 can be covered by the first colloid layer 500, so as to ensure the flatness of the connection between the second cover plate 300 and the first cover plate 200.

[0131] In the present application, during the manufacturing process of the display module 000, the first cover plate 200 and the second cover plate 300 in the display module 000 can be first bonded together through the first colloid layer 500. And during the connection process of the first cover plate 200 and the second cover plate 300, the light-absorbing layer 700 can be first manufactured on the side of the second cover plate 300 facing the first cover plate 200, and then the first colloid layer 500 can be manufactured on the side of the light-absorbing layer 700 facing away from the second cover plate 300, and the first colloid layer 500 can cover the light-absorbing layer 700. Finally, the first cover plate 200 can be bonded to the second cover plate 300 through the first colloid layer 500.

[0132] As Figure 20 shown, Figure 20It is a cross-sectional view of a film layer of a display module provided by another embodiment of the present application. After the first cover plate 200 and the second cover plate 300 are bonded by the first colloid layer 500, in order to ensure the first cover plate 200 and the second cover plate 300, a first protective layer 801 can be attached to the side of the second cover plate 300 facing away from the first cover plate 200, and a second protective layer 802 can be attached to the side of the first cover plate 200 facing away from the second cover plate 300. In this way, during the transportation of subsequent processes, the first protective layer 801 can protect the second cover plate 300, and the second protective layer 802 can protect the first cover plate 200.

[0133] Next, as Figure 21 shown, Figure 21 It is a cross-sectional view of a film layer of another display module provided by another embodiment of the present application. Before the manufacturing of the filling part 400, the second protective layer 802 needs to be replaced with a third protective layer 803. The third protective layer 803 has an opening V, and the outer side surface of the first cover plate 200 can be located within the area surrounded by the opening V of the third protective layer 803. And in order to prevent foreign objects from the outside from contaminating the first cover plate 200 through the opening V, a fourth protective layer 804 needs to be attached to the side of the third protective layer 803 facing away from the first cover plate 200.

[0134] As Figure 22 and Figure 23 shown, Figure 22 It is a cross-sectional view of a film layer of yet another display module provided by another embodiment of the present application, Figure 23 It is a cross-sectional view of still another display module provided by another embodiment of the present application. During the manufacturing process of the filling part 400, the fourth protective layer 804 can be removed to expose the opening V of the third protective layer 803. Next, the filling part 400 can be connected to the outer side surface of the first cover plate 200 through the opening V of the third protective layer 803, so that the outer side surface of the first cover plate 200 can be covered by the filling part 400.

[0135] It should be noted that during the manufacturing process of the filling part 400, since the overflow part 402 in the filling part 400 can include a second overflow part 4022, therefore, the orthographic projection of the outer side surface of the first cover plate 200 on the opening V of the third protective layer 803 needs to be located within the area surrounded by the contour of the opening V, and the range of the distance H5 between the outer side surface of the first cover plate 200 and the contour of the opening V can be between 0.1 millimeter and 10 millimeters.

[0136] Finally, as Figure 24 shown, Figure 24It is a cross-sectional view of the film layer of a display module provided by another embodiment of the present application. After the filling portion 400 is manufactured, in order to prevent foreign objects from the outside from contaminating the filling portion 400 through the opening V of the third protective layer 803, a fifth protective layer 805 needs to be attached to the side of the third protective layer 803 facing away from the first cover plate 200.

[0137] After the first cover plate 200 and the second cover plate 300 are bonded together by the first adhesive layer 500, and the filling portion 400 is connected to the outer side surface of the first cover plate 200, the first cover plate 200 and the display panel 100 can be bonded together by the second adhesive layer 600, and the second adhesive layer 600 can cover the overflow portion 402 in the filling portion 400 to ensure the flatness of the connection between the first cover plate 200 and the display panel 100. In this way, the manufacturing of the display module 000 can be realized.

[0138] In the present application, please refer to Figure 25 , Figure 25 It is a cross-sectional view of the film layer of another display module provided by another embodiment of the present application. The display module 000 may further include: a support layer 900. The support layer 900 in the display module 000 may be located on the side of the display panel 100 facing away from the first cover plate 200, and the support layer 900 in the display module 000 may be used to support the display module 000. The support layer 900 in the display module 000 also needs to be bent along with the bending of the display panel 100.

[0139] It should be noted that the flexibility of the support layer 900 in the display module 000 is generally poor. In order to ensure that the support layer 900 can be bent along with the bending of the display panel 100, a hollow area needs to be provided in the bending area of the support layer 900 to increase the flexibility of the bending area of the support layer 900 and ensure that the support layer 900 can be bent through the bending area. When the display panel 100 includes an inner bending area P1 and an outer bending area P2, the support layer 900 also needs to include an inner bending area and an outer bending area. And the width range of the inner bending area of the support layer 900 can be 20 to 30 millimeters, and the width range of the outer bending area of the support layer 900 can be 10 to 15 millimeters. For example, the width of the inner bending area of the support layer 900 can be 25 millimeters, and the width of the outer bending area of the support layer 900 can be 13.5 millimeters.

[0140] In summary, the embodiment of the present application provides a display module, including: a display panel, a first cover plate, a second cover plate and a filling portion. The display panel can be folded or unfolded through the bending area of ​​the display panel, the first cover plate and the second cover plate can be folded as the display panel is folded, and the outer side surface of the second cover plate located on the side of the first cover plate away from the display panel protrudes from the outer side surface of the first cover plate. The filling portion can be located on the outer side surface of the first cover plate and can be distributed between the second cover plate and the display panel. Among them, the filling portion in the display module can be distributed at least in the bending area of ​​the display panel. In this way, in the bending area of ​​the display panel, the filling portion can fill the gap between the outer side surface of the first cover plate and the outer side surface of the second cover plate to ensure that the portion of the outer side surface of the first cover plate located in the bending area can be covered by the filling portion. In this way, in the process of folding the display panel through the bending area, the portion of the outer side surface of the first cover plate located in the bending area will not generate a cavity between the second cover plate, thereby avoiding the possibility of bubbles at the outer side surface of the first cover plate, and ensuring the reliability of the display module.

[0141] The embodiment of the present application also provides a display device, which may include: a folding housing, and a display module connected to the folding housing, and the display module in the display device may be any of the display modules described above. Through the connection between the folding housing and the display module in the display device, the user can drive the folding or unfolding of the folding housing to drive the display module to fold or unfold, thereby realizing the folding or unfolding of the display device. In this way, the user can meet the different needs of the user through the folding or unfolding of the display device. For example, when the user needs to carry the display device with him, he can fold it to reduce its volume, thereby improving portability; when the user is using the display device, he can unfold it to provide a larger display area and operation area, thereby improving the convenience of use. For example, the display device can be a mobile phone, a tablet computer, a laptop computer, an e-book, etc.

[0142] It should be noted that in the accompanying drawings, the sizes of layers and regions may be exaggerated for clarity of illustration. It is also understood that when an element or layer is referred to as being "on" another element or layer, it may be directly on the other element, or there may be an intermediate layer. In addition, it is understood that when an element or layer is referred to as being "under" another element or layer, it may be directly under the other element, or there may be more than one intermediate layer or element. In addition, it is also understood that when a layer or element is referred to as being "between" two layers or two elements, it may be the only layer between the two layers or two elements, or there may also be more than one intermediate layer or element. Similar reference numerals throughout the text indicate similar elements.

[0143] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "plural" refers to two or more, unless otherwise clearly defined.

[0144] The above are only optional embodiments of this application and are not intended to limit this application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of this application shall be included within the protection scope of this application.

Claims

1. A display module, characterized in that: include: A display panel (100), a first cover plate (200), a second cover plate (300) and a filling portion (400); The display panel (100) has a bending area (P); The first cover plate (200) is located on the display side of the display panel (100); The second cover plate (300) is located on a side of the first cover plate (200) away from the display panel (100), and an outer side surface of the second cover plate (300) protrudes from an outer side surface of the first cover plate (200); The filling portion (400) is located on the outer side of the first cover plate (200) and is distributed between the second cover plate (300) and the display panel (100); Wherein, the filling portion (400) is distributed at least in the bending zone (P).

2. The display module according to claim 1, characterized in that: The filling portion (400) comprises: a main body portion (401) and an overflow portion (402) connected to each other; the main body portion (401) is located on the outer side of the first cover plate (200), and the overflow portion (402) is at least located on a side of the main body portion (401) facing away from the second cover plate (300).

3. The display module according to claim 2, characterized in that: A maximum distance (D2) between a side of the overflow portion (402) facing away from the second cover plate (300) and a side of the first cover plate (200) facing away from the second cover plate (300) is less than or equal to a thickness (D1) of the first cover plate (200).

4. The display module according to claim 2, characterized in that: A maximum distance (D2) between a side of the overflow portion (402) facing away from the second cover plate (300) and a side of the first cover plate (200) facing away from the second cover plate (300) is less than or equal to 30 microns, and a thickness (D1) of the first cover plate (200) ranges from 20 microns to 50 microns.

5. The display module according to any one of claims 2 to 4, characterized in that: The overflow portion (402) comprises: a first sub-overflow portion (4021) and a second sub-overflow portion (4022); the first sub-overflow portion (4021) is located on a side of the main body (401) away from the second cover plate (300), and the second sub-overflow portion (4022) is located on a side of the first cover plate (200) away from the second cover plate (300).

6. The display module according to claim 5, characterized in that: The distance between the side of the second sub-overflow portion (4022) facing away from the second cover plate (300) and the side of the first cover plate (200) facing away from the second cover plate (300) gradually decreases to zero along the direction from the first sub-overflow portion (4021) toward the second sub-overflow portion (4022).

7. The display module according to claim 5, characterized in that: The angle between the side of the second sub-overflow portion (4022) facing away from the second cover plate (300) and the side of the first cover plate (200) facing away from the second cover plate (300) ranges from 0° to 90°.

8. The display module according to claim 5, characterized in that: In a direction parallel to the bending axis of the bending zone (P), a ratio of a maximum width (H2) of the second sub-overflow portion (4022) to a maximum width (H1) of the main body portion (401) is less than or equal to 1.

5.

9. The display module according to claim 5, characterized in that: In the direction parallel to the bending axis of the bending zone (P), the maximum width (H2) of the second sub-overflow portion (4022) is less than or equal to 0.45 mm, and the maximum width (H1) of the main body portion (401) ranges from 0.3 mm to 1.5 mm.

10. The display module according to any one of claims 1-4 and 6-9, characterized in that: The first cover plate (200) has a groove (K) on its outer side, and the groove (K) is at least located in the bending area (P); Wherein, at least a portion of the filling portion (400) is located in the groove (K).

11. The display module according to claim 10, characterized in that: In a direction parallel to the bending axis of the bending zone (P), the maximum width (H1) of the main body portion (401) in the filling portion (400) is greater than or equal to the maximum width (H3) of the groove (K).

12. The display module according to claim 11, characterized in that: In a direction parallel to the bending axis of the bending zone (P), the maximum width (H3) of the groove (K) ranges from 0.3 mm to 0.8 mm.

13. The display module according to claim 10, characterized in that: In a direction parallel to the display side of the display panel (100) and perpendicular to the bending axis of the bending zone (P), the length (L1) of the groove (K) is greater than or equal to the width (L2) of the bending zone (P); Furthermore, in a direction parallel to the display side of the display panel (100) and perpendicular to the bending axis of the bending zone (P), the length (L3) of the filling portion (400) is less than the length (L1) of the groove (K) and greater than or equal to the width (L2) of the bending zone (P); or, the length (L3) of the filling portion (400) is greater than or equal to the length (L1) of the groove (K).

14. The display module according to claim 13, characterized in that: In a direction parallel to the display side of the display panel (100) and perpendicular to the bending axis of the bending zone (P), the difference between the length (L1) of the groove (K) and the width (L2) of the bending zone (P) is less than or equal to 10 mm.

15. The display module according to any one of claims 11 to 14, characterized in that: The display panel (100) comprises: two bending areas (P), one of the two bending areas (P) is an inner bending area (P1), and the other is an outer bending area (P2); a groove (K) located on the outer side of the first cover plate (200) and at least distributed in the inner bending area (P1) is a first groove (K1), and a groove (K) located on the outer side of the first cover plate (200) and at least distributed in the outer bending area (P2) is a second groove (K2); In which, in a direction parallel to the display side of the display panel (100) and perpendicular to the bending axis of the bending zone (P), the width (L21) of the inner bending zone (P1) is smaller than the width (L22) of the outer bending zone (P2), and the length (L11) of the first groove (K1) is smaller than the length (L12) of the second groove (K2).

16. The display module according to claim 15, characterized in that: In a direction parallel to the display side of the display panel (100) and perpendicular to the bending axis of the bending zone (P), the length (L11) of the first groove (K1) ranges from 10 mm to 15 mm, and the length (L12) of the second groove (K2) ranges from 12 mm to 18 mm.

17. The display module according to any one of claims 1-4, 6-9, 11-14, and 16, characterized in that: The orthographic projection of the first cover plate (200) on the second cover plate (300) is located within the area enclosed by the outer side surface of the second cover plate (300), and the distance (H4) between the outer side surface of the first cover plate (200) and the outer side surface of the second cover plate (300) is in the range of 0.1 mm to 0.3 mm.

18. The display module according to any one of claims 1-4, 6-9, 11-14, and 16, characterized in that: The display module further comprises: a first colloid layer (500) and a second colloid layer (600), wherein the first colloid layer (500) is located between the first cover plate (200) and the second cover plate (300), and the second colloid layer (600) is located between the first cover plate (200) and the display panel (100); Wherein, the entirety of the filling portion (400) is located between the first colloid layer (500) and the second colloid layer (600); Alternatively, a portion of the filling portion (400) is located between the first colloid layer (500) and the second colloid layer (600), and another portion is located between the second cover plate (300) and the display panel (100); Alternatively, the filling portion (400) is located at least between the second cover plate (300) and the second colloid layer (600).

19. The display module according to claim 18, characterized in that: The filling portion (400) is made of at least one of a transparent material, a reflective material and a light absorbing material.

20. A display device, characterized in that: include: A foldable housing, and a display module connected to the foldable housing, wherein the display module is the display module according to any one of claims 1 to 19.

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