Display panel, display module and display device

Abstract

The invention discloses a cover plate, a display module and a display device.A display panel comprises a substrate, a covering layer and a first bonding layer, the covering layer is located on one side of the substrate, the first bonding layer is located between the substrate and the covering layer, and the first bonding layer covers the surface of the side, close to the covering layer, of the substrate and at least one side wall face perpendicular to the plane where the substrate is located; the orthographic projection of the covering layer on the substrate is located in the orthographic projection range of the first bonding layer on the substrate, the first bonding layer in the embodiment can protect the substrate when the module is cut, the substrate is prevented from generating fragments when the module is cut, the offset between the covering layer and the substrate can be filled up, and the service life of the substrate is prolonged. The adhesive layers on the two sides of the substrate are prevented from being adhered in the module cutting process, so that bubbles are prevented from being generated on the edges of the two sides of the substrate, and the situation that the cover plate falls off in a large area due to bubble extension in the bending process is avoided.

Description

Technical Field

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

[0002] At present, for display modules such as folding display modules, in addition to using clear polyimide (CPI) as a cover plate, ultra-thin glass (UTG) is increasingly being used as a cover plate.

[0003] The performance of the ultra-thin glass cover plate is superior to that of the transparent polyimide cover plate in many aspects. However, the inventors have found that the cover plate of the folding display module using the ultra-thin glass cover plate is prone to peeling off in a large area during the bending process. Summary of the invention

[0004] In view of this, an object of the present disclosure is to provide a display panel, a display module and a display device to alleviate the deficiencies in the related art.

[0005] Based on the above objectives, the present disclosure discloses a cover plate, which includes:

[0006] substrate;

[0007] a covering layer, located on one side of the substrate;

[0008] A first adhesive layer is located between the substrate and the covering layer, the first adhesive layer covers a side surface of the substrate close to the covering layer and at least one side wall surface perpendicular to the plane where the substrate is located, and the orthographic projection of the covering layer on the substrate is located within the orthographic projection range of the first adhesive layer on the substrate.

[0009] In one embodiment, the first adhesive layer includes a main body portion and an extension portion located on the periphery of the main body portion, wherein the extension portion is located on a surface of the main body close to the substrate and extends in a direction away from the covering layer;

[0010] Preferably, the orthographic projection of the substrate on the covering layer is located within the orthographic projection range of the main body on the covering layer;

[0011] Preferably, in a direction parallel to the plane where the base is located, the edge of the main body is protruding relative to the edge of the base;

[0012] Preferably, the orthographic projection of the main body on the substrate coincides with the orthographic projection of the covering layer on the substrate;

[0013] Preferably, in a direction parallel to the plane where the base is located, a side surface of the extension portion facing away from the main body portion is flush with a side surface of the base facing away from the main body portion.

[0014] In one embodiment, the thickness of the substrate in a direction perpendicular to the surface of the substrate is between 10 and 50 microns;

[0015] Preferably, in a direction perpendicular to the surface of the substrate, the thickness of the extension portion is between 5 and 100 microns;

[0016] Preferably, in a direction perpendicular to the surface where the substrate is located, the thickness of the extension portion is the same as the thickness of the substrate;

[0017] Preferably, in a direction perpendicular to the surface where the base is located, the thickness of the main body portion is smaller than the thickness of the extension portion.

[0018] In one embodiment, in a direction parallel to the plane where the substrate is located, the distance between the extensions located on opposite sides of the cover layer is equal to the length of the substrate;

[0019] Preferably, in a direction parallel to the plane where the base is located, the extension portion is provided on the circumferential side of the base.

[0020] In one embodiment, in a direction parallel to the plane where the substrate is located, the lengths of the extension portions located on opposite sides of the covering layer are the same;

[0021] In a direction parallel to the plane where the base is located, the length of each of the extension portions is the same;

[0022] Preferably, in a direction parallel to the plane where the substrate is located, the length of the extension portion is between 50 and 200 microns.

[0023] In one embodiment, the material of the cover layer includes polyethylene terephthalate;

[0024] Preferably, the material of the first adhesive layer includes transparent optical glue;

[0025] Preferably, the material of the substrate includes ultra-thin glass.

[0026] In one embodiment, the orthographic projection of the substrate on the cover layer is located within the range of the cover layer;

[0027] Preferably, in a direction parallel to the plane where the substrate is located, the edge of the covering layer is arranged to protrude relative to the edge of the substrate;

[0028] Preferably, in a direction perpendicular to the plane where the substrate is located, the side wall surface of the first adhesive layer is coplanar with the side wall surface of the covering layer.

[0029] Based on the same inventive concept, the present disclosure also provides a display module, which includes:

[0030] As the cover plate described above,

[0031] The display panel is located on a side of the substrate away from the cover layer.

[0032] In one embodiment, it further comprises:

[0033] a second adhesive layer, located between the display panel and the substrate, and the second adhesive layer is bonded to the first adhesive layer;

[0034] Preferably, the display panel comprises at least one folded edge;

[0035] Preferably, the first adhesive layer covers a surface of one side of the substrate close to the covering layer and two side walls of the substrate in a direction perpendicular to the foldable edge of the display panel.

[0036] Based on the same inventive concept, the present disclosure provides a display device, which includes the display module as described above.

[0037] Compared with the prior art, the present invention provides a cover plate, in which the first adhesive layer wraps at least one side wall surface perpendicular to the plane where the substrate is located and the surface of the substrate close to the covering layer, which can protect the substrate when the module is cut and avoid the substrate from being broken when the module is cut. At the same time, the orthographic projection of the covering layer on the substrate is located within the orthographic projection range of the first adhesive layer on the substrate, so that the first adhesive layer can fill the gap between the covering layer and the substrate, avoiding the adhesion of the adhesive layers on both sides of the substrate during the module cutting process, thereby avoiding the generation of bubbles at the edges of both sides of the substrate, and further avoiding the extension of bubbles during the bending process to cause large-scale peeling of the cover plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the present disclosure or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0039] Figure 1 The cross section of the cover plate in the prior art is shown in FIG. Figure 1 ;

[0040] Figure 2 The cross section of the cover plate in the prior art is shown in FIG. Figure 2 ;

[0041] Figure 3 for Figure 2 A top view of the middle cover;

[0042] Figure 4 A schematic cross-sectional view of a cover plate provided in an embodiment of the present application;

[0043] Figure 5 A top view of a cover plate provided in an embodiment of the present application with a covering layer removed;

[0044] Figure 6 A schematic cross-sectional view of a display module provided in an embodiment of the present application. DETAILED DESCRIPTION

[0045] In order to make the objectives, technical solutions and advantages of the present disclosure more clearly understood, the present disclosure is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0046] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. The "first", "second" and similar words used in the embodiments of the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0047] In the related art, the cover plate includes a UTG three-in-one cover plate, that is, the cover plate includes a substrate 110, a cover layer 120, and an optical adhesive 130 located between the substrate 110 and the cover layer 120, and the optical adhesive 130 is used to bond the substrate 110 and the cover layer 120, wherein the material of the substrate 110 includes ultra-thin glass (Ultra Thin Glass, UTG). Since UTG is brittle and easily damaged, the ultra-thin glass needs to be retracted in the actual production of the cover plate 110 (such as Figure 1As shown in the figure, to avoid fragments during the cutting process, but the step difference caused by the inward shrinkage design of the ultra-thin glass is easy to generate bubbles at the edge of the UTG during the bonding process, thereby causing the extension of bubbles in the final module product during bending, and even a large area of ​​the cover plate 110 peeling off. In the prior art, liquid optical glue 140 (Optical Clear Resin, OCR) is spot-coated on the inward shrinkage area of ​​the ultra-thin glass (as shown in the figure). Figure 2 and Figure 3 As shown), however, due to the good fluidity of the liquid optical adhesive, it is easy to overflow, the dispensing accuracy is difficult to control, the yield is low, and there will be a certain molding shrinkage rate during the curing process, which may cause yellowing and warping, bringing new risks to bending.

[0048] Based on the above reasons, the present application provides a cover plate 100, a display module and a display device, wherein the display panel 40 includes a substrate 10, a covering layer 20 and a first adhesive layer 30, the covering layer 20 is located on one side of the substrate 10, the first adhesive layer 30 is located between the substrate 10 and the covering layer 20, the first adhesive layer 30 is located between the substrate 10 and the covering layer 20, the first adhesive layer 30 covers a side surface 11 of the substrate 10 close to the covering layer 20 and at least one side wall surface 12 perpendicular to the plane where the substrate 10 is located, and the orthographic projection of the covering layer 20 on the substrate 10 is located within the orthographic projection range of the first adhesive layer 30 on the substrate 10. In the present embodiment, the first adhesive layer 30 wraps at least one side wall surface 12 perpendicular to the plane of the substrate 10 and the surface of the substrate 10 close to the cover layer 20, which can protect the substrate 10 during module cutting and prevent the substrate 10 from being broken into pieces during module cutting. At the same time, since the orthographic projection of the cover layer 20 on the substrate 10 is located within the orthographic projection range of the first adhesive layer 30 on the substrate 10, the first adhesive layer fills the gap between the cover layer 20 and the substrate 10, preventing the adhesive layers on both sides of the substrate 10 from sticking together during the module cutting process, thereby preventing bubbles from being generated at the edges of both sides of the substrate 10, and further preventing the bubbles from extending during the bending process to cause a large area of ​​the cover plate 100 to fall off (peeling).

[0049] Next, combine Figure 4-Figure 5 A cover plate 100 provided in an embodiment of the present application is described. The cover plate 100 may specifically be a flexible cover plate 100 , which covers the light emitting side of the flexible display panel 40 to protect the flexible display panel 40 .

[0050] It should be noted that the flexible display panel 40 in the present application is a foldable flexible display panel 40, and the foldable flexible display panel 40 includes at least one folding edge; the foldable flexible display panel 40 can be repeatedly folded along one or more folding edges.

[0051] In one embodiment, the cover plate 100 includes a substrate 10, and the material of the substrate 10 includes ultra-thin glass (UTG). In this embodiment, the substrate 10 uses ultra-thin glass with the rigidity characteristics of glass materials, while also taking into account a certain degree of bendability. UTG has high transparency and hardness, good surface flatness and touch, and reduces the folding marks of the folding screen. It is the main cover plate 100 material for the foldable flexible display panel 40. Therefore, using ultra-thin glass as the basic component of the foldable cover plate 100 can be ultra-thin while having good bendability and sufficient hardness, and has good application value.

[0052] In one embodiment, the cover plate 100 further includes a covering layer 20, which is located on one side of the substrate 10, wherein the orthographic projection of the cover plate 100 on the covering layer 20 is located within the range of the covering layer 20; it can also be understood that in a direction parallel to the plane of the substrate (X direction), the edge of the covering layer 20 is protruding relative to the edge of the substrate 10, that is, a step difference is formed between the covering layer 20 and the substrate 10. If the first adhesive layer mentioned below does not fill the step difference, during the module cutting process, due to the good resilience of the first adhesive layer, bubbles will be formed at the step difference, which may deteriorate during the bending and use of the folding module, causing large-area peeling of the cover plate 100.

[0053] Exemplarily, the material of the covering layer 20 can be a CPI (Clear Polyimide) layer, or a PET (Polyethylene Terephthalate) layer, or any other reasonable material layer. Specifically, the material of the covering layer 20 in the present embodiment includes polyethylene terephthalate (PET); the covering layer 20 is specifically a high-wear-resistant and high-hardness CPI layer that can withstand more than 6,000 scratches, so as to further improve the wear resistance and crease improvement of the cover plate 100, and is compositely designed with the packaging layer and the adhesive layer to reduce the film thickness of the cover plate 100, reduce creases, improve bending performance, and at the same time improve its scratch resistance.

[0054] In one embodiment, the cover plate 100 further includes a first adhesive layer 30 , which is located between the substrate 10 and the cover layer 20 and plays a bonding role. The cover layer 20 can be bonded to the substrate 10 through the first adhesive layer 30 . Furthermore, the first adhesive layer 30 covers a side surface 11 of the substrate 10 close to the cover layer 20 and at least one side wall surface 12 perpendicular to the plane where the substrate 10 is located. In the present embodiment, at least one side wall surface 12 wrapped by the first adhesive layer 30 and the surface of the substrate 10 close to the cover layer 20 can protect the substrate 10 during module cutting to prevent the substrate 10 from being broken during module cutting. Furthermore, the orthographic projection of the cover layer 20 on the substrate 10 is located within the orthographic projection range of the first adhesive layer 30 on the substrate 10. Furthermore, in the direction perpendicular to the plane where the substrate 10 is located (Z direction), the side wall surface 311 of the first adhesive layer 30 is coplanar with the side wall surface 21 of the cover layer 20, that is, the first adhesive layer fills the gap between the cover layer 20 and the substrate 10, thereby preventing the adhesive layers on both sides of the substrate 10 from sticking together during the module cutting process, thereby preventing bubbles from being generated at the edges of both sides of the substrate 10, and further preventing the cover plate 100 from peeling off due to the extension of bubbles during the bending process.

[0055] Further, the first adhesive layer 30 includes a main body portion 31 and an extension portion 32 located on the periphery of the main body portion 31, the orthographic projection of the main body portion 31 on the substrate 10 coincides with the orthographic projection of the cover layer 20 on the base 10, the extension portion 32 is located on a side surface 11 of the main body portion 31 close to the base 10 and extends in a direction away from the cover layer 20, and the extension portion 32 is attached to a side wall surface 12 of at least one base 10 perpendicular to the plane where the base 10 is located. In this embodiment, the first adhesive layer 30 wraps the side wall surface of the base 10 and the surface of the base 10 close to the cover layer 20, and the first adhesive layer 30 The glass cover plate 100 has a retracted structure, which can prevent the substrate 10 from being broken during the cutting process. At the same time, the first adhesive layer 30 can completely cover the side surface 11 of the substrate 10 close to the covering layer 20, which is beneficial to wrapping the side surface 11 of the substrate 10 close to the covering layer 20. Furthermore, in the direction parallel to the plane where the substrate is located (X direction), the first side surface 11 of the extension portion 32 facing away from the main body portion 31 is flush with the side surface 11 of the substrate 10 facing away from the main body portion 31. On the one hand, the extension portion 32 can completely include the side wall surface of the substrate 10 to effectively protect the side wall surface of the substrate 10. On the other hand, because the first side surface 11 of the extension portion 32 facing away from the main body portion 31 is flush with the side surface 11 of the substrate 10 facing away from the main body portion 31, the side surface 11 of the entire cover plate 100 close to the display panel 40 is flat, reducing the end difference, which is beneficial to the subsequent effective bonding of the cover plate 100 and the display panel 40, and avoiding the generation of bubbles during the bonding process. In one embodiment, in a direction parallel to the plane where the substrate 10 is located (X direction), the distance between the extension portions located on opposite sides of the covering layer 30 is equal to the length of the substrate 10, that is, the inner wall surface of the extension portion 32 is in contact with the side wall surface of the substrate. Furthermore, in a direction parallel to the plane where the substrate 10 is located (X direction), the circumferential side of the substrate 10 is provided with the extension portion 32, that is, the circumferential side of the substrate 10 is provided with the extension portion 32, that is, the circumferential side of the substrate 10 is provided with the extension portion 32.

[0056] In one embodiment, in a direction perpendicular to the surface of the substrate 10 (Z direction), the thickness of the substrate is between 10 and 50 micrometers (μm), (e.g., the height h of the substrate 10 is 10 μm, 15 μm, 20 μm, 25 μm, 30 μm, 35 μm, 40 μm, 45 μm, 50 μm), and further, in a direction perpendicular to the surface of the substrate 10 (Z direction), the height b of the extension portion 32 is between 5 and 100 micrometers (μm) (e.g., the height b of the extension portion 32 is 5 μm, 10 μm, 15 μm, 20 μm, 25 μm, 30 μm, 35 μm, 40 μm, 45 μm, 50 μm, 55 μm, 60 μm, 65 μm, 70 μm, 75 μm, 80 μm, 85 μm, 90 μm, 95 μm, 100 μm). As a preferred embodiment, in the direction perpendicular to the surface of the substrate 10 (Z direction), the height of the extension portion 32 is the same as the height of the substrate 10, that is, since the height of the extension portion 32 is the same as the height of the substrate 10, the height of the extension portion 32 changes according to the height of the substrate 10. Further, in the direction perpendicular to the surface of the substrate (Z direction), the thickness of the main body 31 is less than the thickness of the extension portion 32.

[0057] In one embodiment, in a direction parallel to the plane of the substrate 10 (X direction), the lengths of the extension portions 32 located on opposite sides of the covering layer 30 are the same. Exemplarily, in a direction parallel to the plane of the substrate 10 (X direction), the length d of the extension portion 32 is between 50 and 200 micrometers (μm) (e.g., the length d of the extension portion 32 is 50 μm, 60 μm, 70 μm, 80 μm, 90 μm, 100 μm, 110 μm, 120 μm, 130 μm, 140 μm, 150 μm, 160 μm, 170 μm, 180 μm, 190 μm, or 200 μm).

[0058] For example, the material of the first adhesive layer 30 can be transparent optical adhesive OCA (optical clear adhesive), solid transparent optical adhesive SCA (solid optically clear adhesive), pressure sensitive adhesive PSA (pressure sensitive adhesive) or optical clear resin OCR (optical clear resin). According to this embodiment, bonding the cover layer and the substrate through the adhesive layer is beneficial to improving the overall structural integrity of the cover plate 100 and avoiding defects such as splitting and misalignment. According to one embodiment of the present invention, the material of the first adhesive layer 30 includes transparent optical adhesive OCA (optical clear adhesive). OCA adhesive has high clarity, high light transmittance (total light transmittance>99%), high adhesion, high weather resistance, water resistance, high temperature resistance, UV resistance and other properties, has a controlled thickness, can provide uniform spacing, and will not cause yellowing (yellowing), peeling and deterioration problems after long-term use.

[0059] refer to Figure 6 Based on the same inventive concept, the second aspect of the present disclosure provides a display module, which includes a flexible display module, and the display module includes a cover plate 100 and a display panel 40 provided in the above embodiment, wherein the display panel 40 is located on the side of the substrate 10 away from the first adhesive layer 30, wherein the display panel 40 and the cover plate 100 are bonded and adhered by a second adhesive layer 50. This is the outermost protective structure of the flexible display module. A flexible display module may refer to a structure that can be directly connected to other components of an electronic device (such as a motherboard) without the addition of other electronic components. In the flexible display module, a polarizer, a touch panel, a flexible screen, a support film, etc. may also be generally provided below the cover plate 100.

[0060] In the present embodiment, the first adhesive layer 30 in the cover plate 100 fills the step difference between the substrate 10 and the covering layer 20, so that when the display module is cut (laser cutting), it is avoided that the first adhesive layer 30 and the second adhesive layer 20 are adhered to each other in the shrinkage area of ​​the substrate 10, and bubbles are generated in the edge area of ​​the substrate 10, which affects the bending of the display module.

[0061] In one embodiment, the flexible display panel 40 in the present application is a foldable flexible display panel 40, and the foldable flexible display panel 40 includes at least one folding edge; the foldable flexible display panel 40 can be repeatedly folded along one or more folding edges m, wherein the first adhesive layer covers a side surface of the substrate 10 close to the covering layer and two side walls 12 of the substrate in a direction perpendicular to the foldable edge of the display panel.

[0062] Based on the same inventive concept, the third aspect of the present disclosure provides a display device, which includes the above-mentioned display module provided by the embodiment of the present disclosure. Since the principle of solving the problem by the display device is similar to the principle of solving the problem by the above-mentioned display panel 40, the implementation of the display device provided by the embodiment of the present disclosure can refer to the implementation of the above-mentioned display module provided by the embodiment of the present disclosure, and the repeated parts will not be repeated.

[0063] The display device provided in the embodiment of the present invention can be applied to a mobile phone, or any electronic product with a display function, including but not limited to the following categories: televisions, laptops, desktop displays, tablet computers, digital cameras, smart bracelets, smart glasses, car displays, medical equipment, industrial control equipment, touch interactive terminals, etc. The embodiment of the present invention does not make any special limitations on this.

[0064] It should be noted that the above describes some embodiments of the present disclosure. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the above embodiments and still achieve the desired results. In addition, the processes depicted in the accompanying drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0065] The embodiments of the present disclosure are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present disclosure should be included in the scope of protection of the present disclosure.

Claims

1. A cover plate, characterized in that: include: substrate; a covering layer, located on one side of the substrate; A first adhesive layer is located between the substrate and the covering layer, the first adhesive layer covers a side surface of the substrate close to the covering layer and at least one side wall surface perpendicular to the plane where the substrate is located, and the orthographic projection of the covering layer on the substrate is located within the orthographic projection range of the first adhesive layer on the substrate.

2. The cover plate according to claim 1, characterized in that: The first adhesive layer includes a main body and an extension portion located on the periphery of the main body, wherein the extension portion is located on a surface of the main body close to the substrate and extends in a direction away from the covering layer; Preferably, the orthographic projection of the substrate on the covering layer is located within the orthographic projection range of the main body on the covering layer; Preferably, in a direction parallel to the plane where the base is located, the edge of the main body is protruding relative to the edge of the base; Preferably, the orthographic projection of the main body on the substrate coincides with the orthographic projection of the covering layer on the substrate; Preferably, in a direction parallel to the plane where the base is located, a side surface of the extension portion facing away from the main body portion is flush with a side surface of the base facing away from the main body portion.

3. The cover plate according to claim 2, characterized in that: In a direction perpendicular to the surface of the substrate, the thickness of the substrate is between 10 and 50 microns; Preferably, in a direction perpendicular to the surface of the substrate, the thickness of the extension portion is between 5 and 100 microns; Preferably, in a direction perpendicular to the surface where the substrate is located, the thickness of the extension portion is the same as the thickness of the substrate; Preferably, in a direction perpendicular to the surface where the base is located, the thickness of the main body portion is smaller than the thickness of the extension portion.

4. The cover plate according to claim 2, characterized in that: In a direction parallel to the plane where the substrate is located, the distance between the extensions located on opposite sides of the covering layer is equal to the length of the substrate; Preferably, in a direction parallel to the plane where the base is located, the extension portion is provided on the circumferential side of the base.

5. The cover plate according to claim 2, characterized in that: In a direction parallel to the plane where the substrate is located, the lengths of the extension portions located on opposite sides of the covering layer are the same; In a direction parallel to the plane where the base is located, the length of each of the extension portions is the same; Preferably, in a direction parallel to the plane where the substrate is located, the length of the extension portion is between 50 and 200 microns.

6. The cover plate according to claim 1, characterized in that: The material of the covering layer includes polyethylene terephthalate; Preferably, the material of the first adhesive layer includes transparent optical glue; Preferably, the material of the substrate includes ultra-thin glass.

7. The cover plate according to claim 1, characterized in that: The orthographic projection of the substrate on the covering layer is located within the range of the covering layer; Preferably, in a direction parallel to the plane where the substrate is located, the edge of the covering layer is arranged to protrude relative to the edge of the substrate; Preferably, in a direction perpendicular to the plane where the substrate is located, the side wall surface of the first adhesive layer is coplanar with the side wall surface of the covering layer.

8. A display module, characterized in that: include: The cover plate according to any one of claims 1 to 7; The display panel is located on a side of the substrate away from the cover layer.

9. The display module according to claim 8, wherein: Also includes: a second adhesive layer, located between the display panel and the substrate, and the second adhesive layer is bonded to the first adhesive layer; Preferably, the display panel comprises at least one folded edge; Preferably, the first adhesive layer covers a surface of one side of the substrate close to the covering layer and two side walls of the substrate in a direction perpendicular to the foldable edge of the display panel.

10. A display device, characterized in that: Comprising the display module as claimed in claim 8 or 9.

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