Display module and folding display device

Abstract

The utility model discloses a display module and a folding display device, and belongs to the technical field of display. The display module comprises a display panel and a protective cover plate. In the process that the display module and the frame body need to be assembled, the second plane part in the plane protection part can be assembled on the supporting face of the supporting table, so that the supporting table can support the second plane part in the plane protection part, and assembling between the display module and the shell is achieved. According to the shell, the plane protection part in the display module is assembled by arranging the supporting table, an independent screen pressing strip does not need to be arranged in the shell to limit the plane protection part, and therefore it can be guaranteed that the appearance of the display device obtained by assembling the display module and the shell is good. Besides, the protective cover plate is a protective cover plate with different thicknesses, so that the protective cover plate can be stably assembled on the supporting table in the shell on the premise of ensuring that the protective cover plate can be normally bent, and the reliability of the display device is relatively high.

Description

Technical Field

[0001] This application relates to the field of display technologies, and particularly to a display module and a foldable display device. Background Art

[0002] With the development of communication technologies, foldable display devices have gradually gained the favor of many users. They can not only bring a good visual impact to users, but also meet the users' demand for portability.

[0003] A foldable display device generally may include: a display module and a housing (usually also referred to as a middle frame). Among them, the display module may include: a display panel, and a protection cover plate bonded to the front side (i.e., the display surface of the display panel) of the display panel. The edge portion of the protection cover plate may be bonded to one side of the housing, and the display panel may be located within the area surrounded by the housing.

[0004] However, since the protection cover plate needs to be bendable to facilitate the folding or opening of the foldable display device, the thickness of the protection cover plate is usually set to be relatively thin. In this case, during the assembly process of the edge portion of the protection cover plate and one side of the housing, the edge portion of the protection cover plate is extremely likely to be damaged, resulting in poor reliability of the foldable display device. Summary of the Utility Model

[0005] Embodiments of this application provide a display module and a foldable display device. The problem of poor reliability of the foldable display device can be solved, and the technical solutions are as follows:

[0006] On the one hand, a display module is provided. The display module has: a display area, and a non-display area located outside the display area; the display module includes: a display panel and a protection cover plate;

[0007] The display panel includes: two planar display portions, and a bent display portion located between the two planar display portions;

[0008] The protection cover plate is located on the display side of the display panel. The protection cover plate includes: a planar protection portion for covering the planar display portion, and a bent protection portion for covering the bent display portion;

[0009] The planar protection portion includes: a first planar portion located within the display area, and a second planar portion located within the non-display area. The side of the second planar portion facing the display panel is used to connect to the carrier of the housing;

[0010] The bent protection portion includes: a first bent portion located within the display area, and a second bent portion located within the non-display area;

[0011] Wherein, the thickness of the second planar portion is greater than the thickness of the first bent portion.

[0012] Optionally, the thickness of the first planar portion is greater than the thickness of the first bent portion.

[0013] Optionally, the surface of the first planar portion facing away from the display panel is coplanar with the surface of the first bent portion facing away from the display panel.

[0014] Optionally, the side of the protective cover plate facing the display panel has a bearing groove, and the bearing groove is distributed on the side of the bent protective portion facing the display panel and between the two planar protective portions;

[0015] The display module further includes: a first organic filling portion and a first adhesive layer. The first organic filling portion is at least located in the bearing groove. The first adhesive layer is adhered to the side of the protective cover plate facing the display panel, and the first adhesive layer covers at least part of the first organic filling portion.

[0016] Optionally, the display module further includes: a support layer on the side of the first adhesive layer facing the display panel. A part of the support layer is located in the display area, and another part is located in the non-display area.

[0017] Optionally, the side of the first adhesive layer facing away from the protective cover plate is adhered to the display panel; the display module further includes: a support layer on the side of the protective cover plate facing the display panel. The support layer is annular, the support layer is distributed around the first adhesive layer, and the support layer is distributed in the non-display area outside the display area.

[0018] Optionally, the thickness of the second planar portion is greater than the thickness of the first planar portion.

[0019] Optionally, the display module further includes: a support layer on the side of the first adhesive layer facing the display panel. The support layer is at least distributed in the display area;

[0020] Wherein, the orthographic projection of the support layer on the protective cover plate is located within the area enclosed by the outer contour of the protective cover plate, and the outer contour of the support layer does not coincide with the outer contour of the protective cover plate.

[0021] Optionally, the display module further includes: a hydrophobic layer between the first adhesive layer and the support layer, and a second adhesive layer between the support layer and the display panel;

[0022] The side of the hydrophobic layer facing away from the support layer is adhered to the first adhesive layer, and both sides of the second adhesive layer are adhered to the display panel and the support layer respectively.

[0023] Optionally, the thickness of the second bending portion is greater than that of the first bending portion;

[0024] Wherein, the second bending portion has a plurality of through holes arranged in an array.

[0025] Optionally, the thickness of the second bending portion is equal to that of the second planar portion.

[0026] Optionally, the through holes are strip-shaped, and the extending direction of the through holes is parallel to the bending axis of the bending protection portion.

[0027] Optionally, the display module further includes: a second organic filling portion located in each of the through holes.

[0028] On the other hand, a folding display device is provided, which includes: a folding housing, and a display module connected to the folding housing, and the display module is any one of the above-mentioned display modules.

[0029] Optionally, the folding housing includes: two housings respectively and correspondingly connected to the two planar protection portions, and a rotating shaft component for connecting the two housings; the housing includes: a support platform, and the support platform has a support surface;

[0030] Wherein, the support surface of the support platform is used to support at least a part of the second planar portion.

[0031] The beneficial effects brought by the technical solutions provided in the embodiments of the present application at least include:

[0032] During the assembly process of the display module and the frame, the second planar portion in the planar protection portion can be assembled on the support surface of the support platform, so that the support platform can support the second planar portion in the planar protection portion to realize the assembly between the display module and the housing. Here, the housing assembles the planar protection portion in the display module by setting the support platform, and there is no need to set a separate pressing screen bar in the housing to limit the planar protection portion, so that there is no additional pressing screen bar structure at the edge of the front surface of the display module, and thus the appearance of the display device assembled by the display module and the housing can be ensured to be better. In addition, the protection cover plate in the display module provided in the embodiments of the present application is a protection cover plate with unequal thickness. On the premise of ensuring that the protection cover plate can be bent normally, it is ensured that the protection cover plate can be stably assembled on the support platform in the housing, so that the reliability of the display device assembled by the display module and the housing is relatively high. Description of the Drawings

[0033] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0034] Figure 1 is a schematic structural diagram of a display device;

[0035] Figure 2 is a top view of a display module provided by an embodiment of the present application;

[0036] Figure 3 is Figure 2 a schematic cross-sectional view of the display module shown at A-A';

[0037] Figure 4 is an effect diagram of assembling a display module provided by an embodiment of the present application with a housing;

[0038] Figure 5 is Figure 2 another schematic cross-sectional view of the display module shown at A-A';

[0039] Figure 6 is an effect diagram of assembling another display module provided by an embodiment of the present application with a housing;

[0040] Figure 7 is an effect diagram of assembling yet another display module provided by an embodiment of the present application with a housing;

[0041] Figure 8 is an effect diagram of assembling still another display module provided by an embodiment of the present application with a housing;

[0042] Figure 9 is a top view of a partial structure of a display module provided by an embodiment of the present application;

[0043] Figure 10 is Figure 9 a schematic cross-sectional view of the display module shown at C-C';

[0044] Figure 11 is Figure 2 another schematic cross-sectional view of the display module shown at A-A';

[0045] Figure 12 is a schematic cross-sectional structure diagram of a display device provided by an embodiment of the present application. Detailed implementation manners

[0046] To make the objectives, technical solutions, and advantages of this application more clear, the following will further describe the embodiments of this application in detail with reference to the accompanying drawings.

[0047] Please refer to Figure 1 , Figure 1 which is a schematic structural diagram of a display device. The display device 00 may include: a display panel 01, a protection cover plate 02, and a housing 03.

[0048] The display panel 01 in the display device 00 may be used to display images. Here, the display side of the display panel 01 is the side of the display panel 01 used to display images.

[0049] The protection cover plate 02 in the display device 00 may be located on the display side of the display panel 01. The protection cover plate 02 may include: a first protection layer 021, a second protection layer 022, and an adhesive layer 023.

[0050] The first protection layer 021 in the protection cover plate 02 may be connected to the display panel 01 on the display side of the display panel 01. In this way, the display side of the display panel 01 can be supported and protected through the first protection layer 021 in the protection cover plate 02. Here, the material of the first protection layer 021 may be ultra-thin glass.

[0051] The second protection layer 022 in the protection cover plate 02 may be located on the side of the first protection layer 021 facing away from the display panel 01. Among them, through the combined action of the first protection layer 021 and the second protection layer 022 arranged in layers, the display panel 01 can be protected more effectively.

[0052] The adhesive layer 023 in the protection cover plate 02 may be located between the first protection layer 021 and the second protection layer 022. That is, the adhesive layer 023 may be bonded to the first protection layer 021 and the second protection layer 022 respectively. In this way, the first protection layer 021 and the second protection layer 022 can be stably connected together through the adhesive layer 023.

[0053] When the display device 00 is a foldable display device, it is necessary to ensure that the overall thickness of the protection cover plate 02 is relatively thin to ensure the foldability of the protection cover plate 02 in the display device 00. To ensure a high stability in the assembly between the protection cover plate 02 and the housing 03, the housing 03 may have a screen pressing strip 031. The screen pressing strip 031 of the housing 03 may be distributed on the side of the protection cover plate 02 facing away from the display panel 01 to limit the protection cover plate 02, so that the protection cover plate 02 can be stably connected to the protection cover plate 02.

[0054] However, when the pressure screen bar 031 is distributed on the side of the protective cover plate 02 facing away from the display panel 01, the pressure screen bar 031 will occupy a certain width of the edge of the front of the display device, resulting in poor appearance of the display device.

[0055] Please refer to Figure 2 and Figure 3 , Figure 2 which is a top view of a display module provided by an embodiment of the present application. Figure 3 It is Figure 2 a cross-sectional schematic view of the shown display module taken along line A-A'. The display module 000 may include: a display panel 100 and a protective cover plate 200. Among them, the display module 000 may have: a display area 00a and a non-display area 00b located outside the display area 00a.

[0056] The display panel 100 in the display module 000 may include: two flat display portions 101 and a bent display portion 102 located between the two flat display portions 101. Here, the display panel 100 in the display module 000 may be used to display an image. Among them, the display surface of the display panel 100 is the side of the display panel 100 used to display the image.

[0057] It should be noted that the two flat display portions 101 in the display panel 100 may be connected by the bent display portion 102, and the bent display portion 102 in the display panel 100 may be folded so that the display surfaces of the two flat display portions 101 can be disposed opposite to each other, so that the display module 000 is in a folded state. The bent display portion 102 in the display panel 100 may be unfolded so that the display surfaces of the two flat display portions 101 can be coplanar, so that the display module 000 is in an unfolded state.

[0058] The protective cover plate 200 in the display panel 100 may be located on the display side of the display panel 100. Among them, the protective cover plate 200 may include: a flat protection portion 201 for covering the flat display portion 101 and a bent protection portion 202 for covering the bent display portion 102. It should be noted that the protective cover plate 200 in the present application may be an unequal-thickness ultra-thin glass (UltraFlexible Glass). Here, the unequal-thickness ultra-thin glass means: a flexible glass with a thickness less than 1 mm.

[0059] Here, the number of planar protection portions 201 in the protection cover plate 200 may be two, and the two planar protection portions 201 may be respectively used to cover the two planar display portions 101. In this way, the two planar display portions 101 in the display panel 100 can be respectively protected by the two planar protection portions 201 to ensure that the two planar display portions 101 in the display panel 100 are not easily damaged. The bending protection portion 202 located between the two planar protection portions 201 in the protection cover plate 200 may have bendability, so that the protection cover plate 200 can be a bendable protection cover plate to ensure that the protection cover plate 200 can be folded and unfolded. And the bending display portion 102 is protected by the bending protection portion 202 to ensure that the bending display portion 102 in the display panel 100 is not easily damaged.

[0060] In this application, the planar protection portion 201 in the protection cover plate 200 may include: a first planar portion 2011 located in the display area 00a, and a second planar portion 2012 located in the non-display area 00b. The bending protection portion 202 in the protection cover plate 200 may include: a first bending portion 2021 located in the display area 00a, and a second bending portion 2022 located in the non-display area 00b.

[0061] Among them, one side of the second planar portion 2012 in the planar protection portion 201 facing the display panel 100 may be used to connect with the bearing table of the housing. Exemplarily, please refer to Figure 4 , Figure 4 which is an assembly effect diagram of a display module provided in an embodiment of this application and a housing. The housing 002a may include: a support table 0021, and the support table 0021 may have a support surface. During the assembly process of the display module 000 and the frame body 002a, the second planar portion 2012 in the planar protection portion 201 can be assembled on the support surface of the support table 0021, so that the support table 0021 can support the second planar portion 2012 in the planar protection portion 201 to realize the assembly between the display module 000 and the housing 002a.

[0062] Here, the housing 002a is assembled with the planar protection portion 201 in the display module 000 by setting the support table 0021. There is no need to set a separate pressing screen bar in the housing 002a to limit the planar protection portion 201, so that there is no additional pressing screen bar structure at the edge of the front surface of the display module, and thus the appearance of the display device assembled by the display module 000 and the housing 002a can be ensured to be better.

[0063] It should be noted that Figure 4 the display module in Figure 2 may be a cross-sectional schematic diagram of the display module shown in

[0064] In the embodiment of the present application, the thickness of the second planar portion 2012 of the planar protection portion 201 located within the non-display area 00b may be greater than the thickness of the first bending portion 2021 of the bending protection portion 202 located within the display area 00a. In this case, since within the protective cover plate 200, the second planar portion 2012 of the planar protection portion 201 located within the non-display area 00b is subsequently assembled onto the support surface of the support platform 0021 in the housing 002a, therefore, in order to ensure that the second planar portion 2012 can be stably assembled onto the support surface of the support platform 0021, it is necessary to ensure that the thickness of the second planar portion 2012 is relatively thick. Also, since within the protective cover plate 200, the first bending portion 2021 of the bending protection portion 202 located within the display area 00a needs to have a certain degree of bendability, therefore, it is necessary to ensure that the thickness of the first bending portion 2021 is relatively small to ensure that the first bending portion 2021 can be bent normally.

[0065] For this reason, the protective cover plate 200 within the display module 000 provided in the embodiment of the present application is a protective cover plate with unequal thicknesses, to ensure that the protective cover plate 200 can be stably assembled onto the support platform in the housing while ensuring that the protective cover plate 200 can be bent normally.

[0066] In summary, the embodiment of the present application provides a display module, including: a display panel and a protective cover plate. During the assembly process of the display module and the frame body, the second planar portion in the planar protection portion can be assembled onto the support surface of the support platform, such that the support platform can support the second planar portion in the planar protection portion to achieve the assembly between the display module and the housing. Here, the housing assembles the planar protection portion in the display module by providing the support platform, and there is no need to provide a separate screen pressing strip in the housing to limit the planar protection portion, such that there is no additional screen pressing strip structure at the edge of the front surface of the display module, and thus the appearance of the display device assembled from the display module and the housing can be ensured to be relatively good. In addition, the protective cover plate within the display module provided in the embodiment of the present application is a protective cover plate with unequal thicknesses, to ensure that the protective cover plate can be stably assembled onto the support platform in the housing while ensuring that the protective cover plate can be bent normally, such that the reliability of the display device assembled from the display module and the housing is relatively high.

[0067] In the embodiment of the present application, as Figure 3As shown, within the protective cover plate 300, the thickness of the first planar portion 2011 of the planar protection portion 201 located within the display area 00a can be greater than the thickness of the first bending portion 2021 of the bending protection portion 202 located within the display area 00a. In this way, on the premise of ensuring that the first bending portion 2021 can be bent, it can be ensured that the strength of the planar protection portion 201 in the protective cover plate 200 is relatively high, so as to better protect the planar display portion 101 in the display panel 100.

[0068] Exemplarily, the thickness of the first planar portion 2011 of the planar protection portion 201 located within the display area 00a can be equal to the thickness of the second planar portion 2012 of the planar protection portion 201 located within the non-display area 00b. In this case, the thickness at each position of the planar protection portion 201 is equal, and the range of the thickness of the planar protection portion 201 can be 70 micrometers to 300 micrometers. For example, the thickness of the planar protection portion 201 can be 200 micrometers. It should be noted that in other possible implementation manners, the thickness of the second planar portion 2012 of the planar protection portion 201 located within the non-display area 00b can also be greater than the thickness of the first planar portion 2011 of the planar protection portion 201 located within the display area 00a. Specific descriptions are not provided here first and will be described in subsequent embodiments.

[0069] The range of the thickness of the first bending portion 2021 of the bending protection portion 202 located within the display area 00a can be 20 micrometers to 30 micrometers. For example, the thickness of the first bending portion 2021 can be 25 micrometers to ensure relatively high bendability of the first bending portion 2021. It should be noted that the thickness of the first bending portion 2021 of the bending protection portion 202 located within the display area 00a can be equal to the thickness of the second bending portion 2022 of the bending protection portion 202 located within the non-display area 00b, or can be less than the thickness of the second bending portion 2022 of the bending protection portion 202 located within the non-display area 00b. Specific descriptions are not provided here first and will be described in subsequent embodiments.

[0070] In this application, the side of the first planar portion 2011 of the planar protection portion 201 facing away from the display panel 100 can be coplanar with the side of the first bending portion 2021 of the bending protection portion 202 facing away from the display panel 100. That is, the side of the portion of the protective cover plate 200 located within the display area 00a facing away from the display panel 100 is coplanar. In this case, it can be ensured that when a user uses a display device equipped with such a protective cover plate 200, the user will not feel that the side of the protective cover plate 200 facing away from the display panel 100 is uneven, thereby improving the user's experience.

[0071] In the embodiments of this application, please refer to Figure 5 ,Figure 5 Yes Figure 2 Figure 2 is another cross-sectional schematic diagram of the shown display module at A-A'. On the side of the protective cover plate 200 facing the display panel 100 in the display module 000, there may be a bearing groove U, and the bearing groove U may be distributed on the side of the bending protection portion 202 in the protective cover plate 200 facing the display panel 100, and may be distributed between the two planar protection portions 201.

[0072] The display module 000 may further include: a first organic filling portion 300 and a first adhesive layer 400. Among them, the first organic filling portion 300 in the display module 000 is at least located in the bearing groove U in the protective cover plate 200. Here, the side of the bending protection portion 202 facing the display panel 100 can be filled through the first organic filling portion 300 to reduce the step difference between the planar protection portion 201 and the bending protection portion 202 in the protective cover plate 200, so as to ensure that the flatness of the side of the protective cover plate 200 facing the display panel 100 is better. Exemplarily, the material of the first organic filling portion 300 may be: a polymer material.

[0073] In a possible implementation manner, the first organic filling portion 300 may be entirely located in the bearing groove U and not outside the bearing groove U. In another possible implementation manner, the first organic filling portion 300 may not only be located in the bearing groove U, but also the first organic filling portion 300 includes a part located outside the bearing groove U, and the part located outside the bearing groove U may be distributed on the side of the protective cover plate 200 facing the display panel 100. It should be noted that Figure 5 The case where the first organic filling portion 300 is not only located in the bearing groove U but also on the side of the protective cover plate 200 facing the display panel 100 is used as an example for illustrative description.

[0074] The first adhesive layer 400 in the display module 000 may be bonded to the side of the protective cover plate 200 facing the display panel 100, and the first adhesive layer 400 in the display module 000 may cover at least part of the first organic filling portion 300. In this way, through the first adhesive layer 400, it can be ensured that the first organic filling portion 300 does not extend to areas other than the bearing groove U, so as to ensure that the first organic filling portion 300 does not interfere with other film layer structures in the display module 000.

[0075] It should be noted that, in the direction perpendicular to the bending axis of the bending protection part 202, the two opposite side surfaces of the bearing groove U can be inclined surfaces. In this way, it can be ensured that the thickness change between the first bending part 2021 in the bending protection part 202 and the first protection part 2011 in the plane protection part 201 is gradual, so as to ensure that there is no problem of excessive stress concentration due to sudden thickness change between the first bending part 2021 and the first protection part 2011, and enable the first bending part 2021 and the first protection part 2011 to be stably connected.

[0076] In the embodiment of the present application, there are various ways to assemble the second protection part 2012 in the display module 000 with the support platform in the frame. The embodiment of the present application will take the following three possible implementation manners as examples for illustration:

[0077] For the first possible implementation manner, please refer to Figure 6 , Figure 6 which is another assembly effect diagram of the display module and the housing provided by the embodiment of the present application. Among them, Figure 6 the display module in Figure 2 can be another cross-sectional schematic diagram of the display module shown in

[0078] at B-B'. The display module 000 may further include: a support layer 500 located on the side of the first adhesive layer 400 facing the display panel 100. Among them, a part of the support layer 500 may be located in the display area 00a, and another part of the support layer 500 may be located in the non-display area 00b.

[0079] Here, the distance between the outer contour of the support layer 500 and the outer contour of the protection cover plate 200 is small. For example, the distance range between the outer contour of the support layer 500 and the outer contour of the protection cover plate 200 can be from 0 to 0.15 millimeters. Here, when the distance between the outer contour of the support layer 500 and the outer contour of the protection cover plate 200 is 0, the outer contour of the support layer 500 is flush with the outer contour of the protection cover plate 200.

[0079] In this case, the part of the support layer 500 located in the non-display area 00b can also be assembled on the support surface of the support platform 0021 in the housing 002a, so that there is still the support layer 500 as a buffer between the first protection part 2011 in the protection cover plate 200 and the support surface of the support platform 0021, and further improve the stability of the protection cover plate 200 assembled on the support platform 0021 in the housing 002a.

[0080] Optionally, the material of the support layer 500 may include: polyethylene terephthalate materials.

[0081] In the embodiment of the present application, as Figure 6As shown, the display module 000 may further include: a hydrophobic layer 600 located between the first adhesive layer 400 and the support layer 500, and a second adhesive layer 700 located between the support layer 500 and the display panel 100.

[0082] Among them, one side of the hydrophobic layer 600 in the display module 000 facing away from the support layer 500 may be bonded to the first adhesive layer 400. Here, a part of the hydrophobic layer 600 in the display module 000 may be located within the display area 00a, and another part of the hydrophobic layer 600 may be located within the non-display area 00b. In this way, fingerprints or stains can be prevented from adhering to the surface of the support layer 500 through the hydrophobic layer 600 in the display module 000. In addition, when the protective cover plate 200 is damaged or the like, it can also ensure that the staff can easily peel the protective cover plate 200 and the first adhesive layer 400 from one side of the support layer 500, so that the staff can replace the damaged protective cover plate in time.

[0083] Here, both sides of the second adhesive layer 700 in the display module 000 may be bonded to the display panel 100 and the support layer 500 respectively. That is, the display panel 100 and the support layer 500 can be bonded together through the second adhesive layer 700 to make the connection between the display panel 100 and the support layer 500 more stable. Among them, at least part of the second adhesive layer 700 in the display module 000 is located within the display area 00a of the display module 000.

[0084] In this application, as Figure 6 shown, the display module 000 may further include: a light-absorbing ink layer 900. Among them, the light-absorbing ink layer 900 may be located on the side of the support layer 500 facing away from the protective cover plate 200, and the light-absorbing ink layer 900 may be distributed within the non-display area 00b. Here, the light-absorbing ink layer 900 may be a black ink layer, which can block the light emitted from the side of the display panel 100, and when the user views the edge of the front of the display module 000, only a black edge area will be seen, thus realizing the decorative effect on the front of the display module 000.

[0085] Exemplarily, the light-absorbing ink layer 900 may be annular. Here, the inner contour of the annular light-absorbing ink layer 900 may be flush with the outer contour of the display area 00a of the display module 000, and the outer contour of the annular light-absorbing ink layer 900 may be flush with the outer contour of the non-display area 00b of the display module 000. In this way, the non-display area 00b of the display module 000 can be blocked by the light-absorbing ink layer 900, so that the structures (such as wiring structures or circuit structures, etc.) arranged within the non-display area 00b cannot be seen from the front of the display module 000, further improving the aesthetics of the display module 000 when viewed from the front.

[0086] For the second possible implementation manner, please refer to Figure 7 , Figure 7 which is another effect diagram of the assembly of the display module and the housing provided by the embodiments of the present application. Among them, Figure 7 the display module in Figure 2 is another cross-sectional schematic diagram of the display module shown at B-B'. One side of the first adhesive layer 400 of the display module 000 facing away from the protection cover plate 200 can be adhered to the display panel 100. The display module 000 may further include: a support layer 500 located on the side of the protection cover plate 200 facing the display panel 100. Among them, the support layer 500 may be annular, the support layer 500 is distributed around the first adhesive layer 400, and the support layer 500 may be distributed in the non-display area 00b outside the display area 00a. That is, the support layer 500 may not be provided in the display area 00a of the display module 000.

[0087] Here, the support layer 500 may be assembled on the support surface of the support platform 0021 in the housing 002a, so that there may be a support layer 500 as a buffer between the first protection portion 2011 of the protection cover plate 200 and the support surface of the support platform 0021, thereby improving the stability of the protection cover plate 200 assembled on the support platform 0021 in the housing 002a. In addition, since the support layer 500 may not be provided in the display area 00a of the display module 000, therefore, on the premise of ensuring better stability of the protection cover plate 200 assembled on the support platform 0021 in the housing 002a, the film layer thickness of the display module 000 can be ensured to be thinner.

[0088] It should be noted that the distance between the outer contour of the annular support layer 500 and the outer contour of the protection cover plate 200 is small. For example, the distance range between the outer contour of the support layer 500 and the outer contour of the protection cover plate 200 may be from 0 to 0.15 millimeters. Here, when the distance between the outer contour of the annular support layer 500 and the outer contour of the protection cover plate 200 is 0, the outer contour of the annular support layer 500 is flush with the outer contour of the protection cover plate 200.

[0089] In the embodiments of the present application, as Figure 7 shown, the display module 000 may further include: an auxiliary adhesive layer 1600 located between the support layer 500 and the protection cover plate 200. Here, both sides of the auxiliary adhesive layer 1600 in the display module 000 may be adhered to the support layer 500 and the protection cover plate 200 respectively. That is, the support layer 500 and the protection cover plate 200 can be adhered together through the auxiliary adhesive layer 1600, so that the connection between the support layer 500 and the protection cover plate 200 is relatively stable.

[0090] In the present application, asFigure 7 As shown, the light-absorbing ink layer 900 in the display module 000 can be located on the side of the protective cover plate 200 facing the display panel 100, and the light-absorbing ink layer 900 can be distributed in the non-display area 00b. For the specific structure and function of the light-absorbing ink layer 900, please refer to the above content and will not be elaborated here.

[0091] For the third possible implementation manner, please refer to Figure 8 , Figure 8 FIG. is an effect diagram of assembling another display module and a housing provided by an embodiment of the present application. Among them, Figure 8 the display module in Figure 2 FIG. is another cross-sectional schematic diagram of the display module shown in FIG. at B-B'. In the protective cover plate 200 of the display module 000, the thickness of the second planar portion 2012 of the planar protection portion 201 located in the non-display area 00b can be greater than the thickness of the first planar portion 2011 of the planar protection portion 201 located in the display area 00a. In this case, since in the protective cover plate 200, the second planar portion 2012 of the planar protection portion 201 located in the non-display area 00b is subsequently assembled onto the support surface of the support platform 0021 in the housing 002a, therefore, when the thickness of the second planar portion 2012 of the planar protection portion 201 located in the non-display area 00b is relatively large, it can be ensured that the second planar portion 2012 can be stably assembled on the support surface of the support platform 0021.

[0092] For example, the thickness value range of the second planar portion 2012 of the planar protection portion 201 can be: 300 microns to 600 microns. For example, the thickness of the second planar portion 2012 of the planar protection portion 201 can be 500 microns. The thickness value range of the first planar portion 2011 of the planar protection portion 201 can be: 70 microns to 250 microns. For example, the thickness of the first planar portion 2011 of the planar protection portion 201 can be 200 microns.

[0093] It should be noted that, as Figure 8 shown, in the direction perpendicular to the bending axis of the bending protection portion 202, the surface of the second planar portion 2012 of the planar protection portion 201 facing the first planar portion 2011 can be an inclined surface. In this way, it can be ensured that the thickness change between the second planar portion 2012 and the first planar portion 2011 of the planar protection portion 201 is gradual, so as to ensure that there is no problem of excessive stress concentration due to sudden thickness change between the second planar portion 2012 and the first planar portion 2011, and the second planar portion 2012 and the first planar portion 2011 can be stably connected.

[0094] In the embodiment of the present application, as Figure 8As shown, the display module 000 may further include: a support layer 500 on the side of the first adhesive layer 400 facing the display panel 100. Here, the support layer 500 in the display module 000 may be at least distributed in the display area 00a. Among them, the orthographic projection of the support layer 500 in the display module 000 on the protective cover plate 200 may be located within the area enclosed by the outer contour of the protective cover plate 200, and the outer contour of the support layer 500 in the display module 000 may not coincide with the outer contour of the protective cover plate 200. Exemplarily, the distance between the outer contour of the support layer 500 and the outer contour of the protective cover plate 200 is relatively large, so that the second planar portion 2012 can be directly assembled on the support table 0021 of the housing 002a. That is, there is no support layer 500 between the support table 0021 of the housing 002a and the second planar portion 2012.

[0095] In the present application, as Figure 8 shown, the display module 000 may further include: a hydrophobic layer 600 between the first adhesive layer 400 and the support layer 500, and a second adhesive layer 700 between the support layer 500 and the display panel 100. Among them, at least part of the hydrophobic layer 600 and the second adhesive layer 700 in the display module 000 may be located in the display area 00a of the display module 000.

[0096] The light-absorbing ink layer 900 in the display module 000 may be located on the side of the second planar portion 2012 in the planar protection portion 201 facing the display panel 100. For the specific structure and function of the light-absorbing ink layer 900, please refer to the above content and will not be elaborated here.

[0097] It should be noted that the orthographic projection of the light-absorbing ink layer 900 on the protective cover plate 200 may cover the area where the second planar portion 2012 in the planar protection portion 201 is located. In this way, even if the side of the second planar portion 2012 located in the non-display area 00b facing away from the display panel 100 is not flush with the side of the first planar portion 2011 located in the display area 00a facing away from the display panel 100, the second planar portion 2012 located in the non-display area 00b can be blocked by the light-absorbing ink layer 900, so that users will not see the uneven surface on the front of the display module 000.

[0098] It should also be noted that, for the above-mentioned third possible implementation manner, the thickness of the second planar portion 2012 of the planar protection portion 201 located within the non-display area 00b may be greater than the thickness of the first planar portion 2011 of the planar protection portion 201 located within the display area 00a. For the above-mentioned first possible implementation manner and the second possible implementation manner, the thickness of the first planar portion 2011 of the planar protection portion 201 located within the display area 00a may be equal to the thickness of the second planar portion 2012 of the planar protection portion 201 located within the non-display area 00b. Of course, it is also possible to make the thickness of the second planar portion 2012 of the planar protection portion 201 located within the non-display area 00b greater than the thickness of the first planar portion 2011 of the planar protection portion 201 located within the display area 00a. The embodiments of the present application do not limit this.

[0099] Similarly, for the above-mentioned first possible implementation manner, the second possible implementation manner, and the third possible implementation manner, the thickness of the first bending portion 2021 of the bending protection portion 202 located within the display area 00a may be equal to the thickness of the second bending portion 2022 of the bending protection portion 202 located within the non-display area 00b. Of course, it is also possible to make the thickness of the second bending portion 2022 of the bending protection portion 202 located within the non-display area 00b greater than the thickness of the first bending portion 2021 of the bending protection portion 202 located within the display area 00a. The embodiments of the present application do not limit this.

[0100] In the embodiments of the present application, please refer to Figure 9 and Figure 10 , Figure 9 which is a top view of a partial structure of a display module provided by the embodiments of the present application, Figure 10 and Figure 9 is a schematic cross-sectional view of the display module shown at C-C'. When the thickness of the second bending portion 2022 of the bending protection portion 202 located within the non-display area 00b is greater than the thickness of the first bending portion 2021 of the bending protection portion 202 located within the display area 00a, the second bending portion 2022 of the bending protection portion 202 may have a plurality of through holes K arranged in an array.

[0101] In this way, even if the thickness of the second bending portion 2022 of the bending protection portion 202 is relatively thick, the protection cover plate 200 can still be bent normally through the through holes K. In this case, the thickness at the position where the through holes K are not provided in the second bending portion 2022 of the bending protection portion 202 is still relatively large, which can meet the requirement of enhancing the strength of the second bending portion 2022 of the bending protection portion 202. Thus, on the premise of ensuring that the protection cover plate 200 can be bent normally, the strength of the second bending portion 2022 of the bending protection portion 202 can be ensured to be relatively high.

[0102] In an embodiment of the present application, the thickness of the second bending portion 2022 in the bending protection portion 202 may be equal to the thickness of the second flat portion 2012 in the flat protection portion 201.

[0103] Exemplarily, when the thickness of the first flat portion 2011 in the flat protection portion 201 located within the display area 00a is equal to the thickness of the second flat portion 2012 in the flat protection portion 201 located within the non-display area 00b, the surface of the second bending portion 2022 in the bending protection portion 202 facing the display panel 100 is coplanar with the surface of the entire flat protection portion 201 facing the display panel 100, and the surface of the second bending portion 2022 in the bending protection portion 202 facing away from the display panel 100 is coplanar with the surface of the entire flat protection portion 201 facing away from the display panel 100. That is to say, the thickness of the second bending portion 2022 in the bending protection portion 202 is equal to the thickness of the flat protection portion 201. Also, since the range of the thickness of the flat protection portion 201 can be from 70 micrometers to 300 micrometers, therefore, the range of the thickness of the second bending portion 2022 in the bending protection portion 202 can also be from 70 micrometers to 300 micrometers.

[0104] When the thickness of the second flat portion 2012 in the flat protection portion 201 located within the non-display area 00b is greater than the thickness of the first flat portion 2011 in the flat protection portion 201 located within the display area 00a, the surface of the second bending portion 2022 in the bending protection portion 202 facing the display panel 100 is coplanar with the surface of the second flat portion 2012 in the flat protection portion 201 facing the display panel 100, and the surface of the second bending portion 2022 in the bending protection portion 202 facing away from the display panel 100 is coplanar with the surface of the second flat portion 2012 in the flat protection portion 201 facing away from the display panel 100. Also, since the value range of the thickness of the second flat portion 2012 in the flat protection portion 201 can be: from 300 micrometers to 600 micrometers, therefore, the range of the thickness of the second bending portion 2022 in the bending protection portion 202 can also be from 300 micrometers to 600 micrometers.

[0105] Optionally, as Figure 9 shown, the through-hole K in the second bending portion 2022 of the bending protection portion 202 may be strip-shaped, and the extending direction of the through-hole K may be parallel to the bending axis of the bending protection portion 202.

[0106] In the present application, as Figure 9 shown, the display module 000 may further include: a second organic filling portion 800 located within each through-hole K. Here, the through-hole K can be filled by the second organic filling portion 800. Exemplarily, the material of the second organic filling portion 800 may be: a polymer material.

[0107] It should be noted that since the refractive index of light of the second bending portion 2022 in the bending protection portion 202 is different from that of the second organic filling portion 800 for light, filling the second organic filling portion 800 in each through hole K of the second bending portion 2022 easily causes a phenomenon of poor light and shadow seen from the front of the display module 000.

[0108] Here, since each through hole K and the second organic filling portion 800 located in each through hole K can be located within the second bending portion 2022, and the second bending portion 202 can be located within the non-display area 00b. Therefore, the light-absorbing ink layer 900 distributed in the non-display area 00b can block each through hole K located in the second bending portion 2022 and the second organic filling portion 800 located in each through hole K, so that the structure provided in the second bending portion 2022 cannot be seen from the front of the display module 000, thereby avoiding the phenomenon of poor light and shadow seen from the front of the display module 000.

[0109] In the embodiment of the present application, please refer to Figure 10 and Figure 11 , Figure 11 is Figure 2 Another cross-sectional schematic diagram of the display module shown at A-A'. The display module 000 may further include: a first support layer 1000, a third adhesive layer 1100, a carbon fiber layer 1200, a support pad 1300, a second support layer 1400, and a protective glue 1500.

[0110] Here, the display panel 100 in the display module 000 may include: a first panel portion 101 and a second panel portion 102, and a panel bending portion 103 located between the first panel portion 101 and the second panel portion 102. The panel bending portion 103 in the display panel 100 is used to connect the first panel portion 101 and the second panel portion 102. That is, one side of the panel bending portion 103 can be connected to the first panel portion 101, and the other side can be connected to the second panel portion 102. Among them, the display area 00a of the display panel 100 can be located within the first panel portion 101, and a part of the non-display area 00b of the display panel 100 can be located within the panel bending portion 103 and the second panel portion 102.

[0111] The first support layer 1000 in the display module 000 can be bonded to the back surface of the first panel portion 101 (i.e., the surface opposite to the front surface of the first panel portion 101). Among them, the first support layer 1000 in the display module 000 can be used to support the first panel portion 101.

[0112] The third adhesive layer 1100 in the display module 000 may be located on the side of the first support layer 1000 away from the first panel portion 101, and one side of the third adhesive layer 1100 may be adhered to the side of the first support layer 1000 away from the first panel portion 101. Here, the side of the third adhesive layer 1100 away from the first support layer 1000 may be adhered to the side of the carbon fiber layer 1200 facing the first panel portion 101.

[0113] The side of the carbon fiber layer 1200 in the display module 000 away from the first panel portion 101 may be adhered to the support cushion block 1300. The carbon fiber layer 1200 may be used to support each position on the back surface of the display panel 100. Exemplarily, the material of the carbon fiber layer 1200 may include: carbon fiber material. Here, since the carbon fiber material has the advantages of high strength but light weight, when the material of the carbon fiber layer 1200 in the display module 000 is selected as the carbon fiber material, it can ensure that the carbon fiber layer 1200 has a good supporting effect on the display panel 100 while ensuring that the overall weight of the display module 000 is relatively low.

[0114] The other side of the support cushion block 1300 in the display module 000 may be adhered to the side of the second support layer 1400 facing the first panel portion 101. Among them, the other side of the second support layer 1400 may be adhered to the side of the second panel portion 102 facing the first panel portion 101. Here, the support cushion block 1300 can play a role in supporting and buffering the driving chip bound to the second panel portion 102, so as to ensure that after the driving chip is subjected to an external force, the buffer of the support cushion block 1300 can protect the driving chip from being damaged.

[0115] The protective glue 1500 in the display module 000 can strengthen the strength of the panel bending portion 103 in the display panel 100, so as to ensure that the panel bending portion 103 is not easily damaged.

[0116] In summary, the embodiment of the present application provides a display module, including a display panel and a protection cover plate. During the assembly process of the display module and the frame, the second flat portion in the flat protection portion can be assembled on the support surface of the support table, so that the support table can support the second flat portion in the flat protection portion to achieve the assembly between the display module and the housing. Here, the housing assembles the flat protection portion in the display module by setting the support table, and there is no need to set a separate pressing screen bar in the housing to limit the flat protection portion, so that there is no additional pressing screen bar structure at the edge of the front surface of the display module, and thus the appearance of the display device assembled by the display module and the housing can be ensured to be better. In addition, the protection cover plate in the display module provided by the embodiment of the present application is a protection cover plate with unequal thickness. On the premise of ensuring that the protection cover plate can be bent normally, it is ensured that the protection cover plate can be stably assembled on the support table in the housing, so that the reliability of the display device assembled by the display module and the housing is relatively high.

[0117] The embodiment of the present application further provides a foldable display device, which can be: a mobile phone, a tablet computer, a television, an advertising machine, a display screen, a digital photo frame, or any product or component with a display function. Please refer to Figure 12 , Figure 12 which is a schematic cross-sectional structure diagram of a display device provided by the embodiment of the present application. The display device 001 may include a folding housing 002 and a display module 000 connected to the folding housing 002, and the display module 000 is the display module in any of the above embodiments.

[0118] Exemplarily, the folding housing 002 in the display device 001 may include two housings 002a respectively connected to the two flat protection portions 201 and a rotating shaft component (not shown in the figure) for connecting the two housings 002a. Here, the housing 002a may include a support table 0021, and the support table 0021 may have a support surface. Among them, the support surface of the support table 0021 can be used to support at least part of the second flat portion 2012.

[0119] In the present application, as Figure 12 shown, the display device 001 may further include a buffer rubber layer 003 located between the support table 0021 in the housing 002a and the protection cover plate 200. Here, both sides of the buffer rubber layer 003 in the display device 001 can be bonded to the support table 0021 and the protection cover plate 200 respectively. That is, the buffer rubber layer 003 can play a good role in buffering and decompressing. In addition, the buffer rubber layer 003 can bond the support table 0021 and the protection cover plate 200 together to make the connection between the support table 0021 and the protection cover plate 200 more stable.

[0120] It should be noted that in the drawings, the dimensions of layers and regions may be exaggerated for clarity of illustration. Also, it is understood that when an element or layer is referred to as being "on" another element or layer, it can be directly on the other element, or there may be intervening layers. Additionally, it is understood that when an element or layer is referred to as being "under" another element or layer, it can be directly under the other element, or there may be more than one intervening layer or element. Further, it is also understood that when a layer or element is referred to as being "between" two layers or two elements, it can be the only layer between the two layers or two elements, or there may also be more than one intervening layer or element. Like reference numerals throughout the text denote like elements.

[0121] 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 "plurality" refers to two or more, unless otherwise specifically defined.

[0122] 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: The display module comprises: a display area (00a), and a non-display area (00b) located outside the display area (00a); The display module comprises: a display panel (100) and a protective cover plate (200); The display panel (100) comprises: two planar display parts (101), and a bent display part (102) located between the two planar display parts (101); The protective cover plate (200) is located on the display side of the display panel (100), and the protective cover plate (200) comprises: a plane protection portion (201) for covering the plane display portion (101), and a bending protection portion (202) for covering the bending display portion (102); The plane protection portion (201) comprises: a first plane portion (2011) located in the display area (00a), and a second plane portion (2012) located in the non-display area (00b), wherein the second plane portion (2012) faces a side of the display panel and is used for connecting with a bearing platform of the housing; The bending protection portion (202) comprises: a first bending portion (2021) located in the display area (00a), and a second bending portion (2022) located in the non-display area (00b); Wherein, the thickness of the second planar portion (2012) is greater than the thickness of the first bent portion (2021).

2. The display module according to claim 1, characterized in that: The thickness of the first planar portion (2011) is greater than the thickness of the first bent portion (2021).

3. The display module according to claim 2, characterized in that: A side of the first planar portion (2011) facing away from the display panel (100) is coplanar with a side of the first bent portion (2021) facing away from the display panel (100).

4. The display module according to claim 3, characterized in that: The protective cover plate (200) has a bearing groove (U) on one side facing the display panel (100), and the bearing groove (U) is distributed on one side of the bending protection portion (202) facing the display panel (100), and is distributed between the two plane protection portions (201); The display module further comprises: a first organic filling part (300) and a first adhesive layer (400), wherein the first organic filling part (300) is at least located in the bearing groove (U), and the first adhesive layer (400) is bonded to a side of the protective cover plate (200) facing the display panel (100), and the first adhesive layer (400) covers at least a portion of the first organic filling part (300).

5. The display module according to claim 4, characterized in that: The display module further comprises: a support layer (500) located on the side of the first adhesive layer (400) facing the display panel (100), a portion of the support layer (500) being located in the display area (00a) and another portion being located in the non-display area (00b).

6. The display module according to claim 4, characterized in that: The first adhesive layer (400) is bonded to the display panel (100) on a side facing away from the protective cover plate (200); The display module further comprises: a support layer (500) located on the side of the protective cover plate (200) facing the display panel (100), the support layer (500) being ring-shaped, the support layer (500) being distributed around the first adhesive layer (400), and the support layer (500) being distributed in the non-display area (00b) outside the display area (00a).

7. The display module according to claim 4, characterized in that: The thickness of the second planar portion (2012) is greater than the thickness of the first planar portion (2011).

8. The display module according to claim 7, characterized in that: The display module further comprises: a support layer (500) located on the side of the first adhesive layer (400) facing the display panel (100), wherein the support layer (500) is at least distributed in the display area (00a); The orthographic projection of the support layer (500) on the protective cover plate (200) is located within the area enclosed by the outer contour of the protective cover plate (200), and the outer contour of the support layer (500) does not overlap with the outer contour of the protective cover plate (200).

9. The display module according to claim 5 or 8, characterized in that: The display module further comprises: a hydrophobic layer (600) located between the first adhesive layer (400) and the support layer (500), and a second adhesive layer (700) located between the support layer (500) and the display panel (100); The side of the hydrophobic layer (600) facing away from the supporting layer (500) is bonded to the first adhesive layer (400), and the two sides of the second adhesive layer (700) are respectively bonded to the display panel (100) and the supporting layer (500).

10. The display module according to any one of claims 1 to 8, characterized in that: The thickness of the second bent portion (2022) is greater than the thickness of the first bent portion (2021); Wherein, the second bending portion (2022) has a plurality of through holes (K) arranged in an array.

11. The display module according to claim 10, characterized in that: The thickness of the second bent portion (2022) is equal to the thickness of the second planar portion (2012).

12. The display module according to claim 10, characterized in that: The through hole (K) is strip-shaped, and the extension direction of the through hole (K) is parallel to the bending axis of the bending protection portion (202).

13. The display module according to claim 10, characterized in that: The display module further comprises: a second organic filling part (800) located in each of the through holes (K).

14. A foldable 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 13.

15. The foldable display device according to claim 14, characterized in that: The folding housing comprises: two shells connected to the two plane protection parts (201) in a one-to-one correspondence, and a rotating shaft component for connecting the two shells; the shell comprises: a support platform, the support platform having a support surface; Wherein, the supporting surface of the supporting platform is used to support at least a part of the second planar portion (2012).

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