Display module and display apparatus

Abstract

Embodiments of the present application provide a display module and a display apparatus. In the display module, a first bonding layer comprises at least a first portion, the first portion is arranged at least corresponding to an edge portion, and the impedance of the first portion is greater than that of a second bonding layer, so that the first portion having higher impedance can block static electricity, and the second bonding layer having lower impedance can be made of a material having good thermal stability. Therefore, both the antistatic effect and bonding stability of the display module can be considered.

Description

Display modules and display devices Technical Field

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

[0002] OLED (Organic Light-Emitting Diode) displays are widely used due to their self-emissive nature and flexibility. To support the display screen, an OLED display uses a backplate. An adhesive is applied to the backplate to bond it to the display. However, during use, static electricity has been observed. This static electricity travels along the edges of the display and penetrates between the backplate and the display, causing static interference and resulting in poor display quality or even complete failure. To address this issue, existing OLED displays incorporate particles into the adhesive. However, these particles have poor thermal stability, which can lead to bonding failure between the backplate and the display during the manufacturing process.

[0003] Therefore, existing OLED display devices have a technical problem of being unable to simultaneously achieve antistatic effects and bonding stability. Invention Overview

[0004] This application provides a display module and a display device to solve the technical problem that existing OLED display devices cannot simultaneously achieve anti-static effect and bonding stability.

[0005] In a first aspect, embodiments of this application provide a display module, the display module comprising:

[0006] The display panel includes a flat portion, a curved portion, and a bonding portion, wherein the curved portion is disposed between the flat portion and the bonding portion, and the flat portion includes a middle portion and an edge portion surrounding the middle portion;

[0007] The backplate includes a first backplate and a second backplate. The first backplate is disposed on one side of the planar portion and contacts the planar portion. The second backplate is disposed on one side of the binding portion and contacts the binding portion. The first backplate and the second backplate are disposed opposite to each other.

[0008] An adhesive layer includes a first adhesive layer and a second adhesive layer, wherein the first adhesive layer is disposed between the planar portion and the first back plate, and the second adhesive layer is disposed between the bonding portion and the second back plate;

[0009] The first adhesive layer includes at least a first portion, which is disposed corresponding to at least the edge portion, and the impedance of the first portion is greater than the impedance of the second adhesive layer.

[0010] Secondly, embodiments of this application provide a display device, which includes a display module as described in any of the above embodiments. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 is a schematic diagram of a comparison display device provided in an embodiment of this application.

[0013] Figure 2 is a schematic diagram of the display module provided in an embodiment of this application.

[0014] Figure 3 is a first schematic diagram of the back plate and adhesive layer provided in an embodiment of this application.

[0015] Figure 4 is a second schematic diagram of the back plate and adhesive layer provided in the embodiments of this application.

[0016] Figure 5 is a third schematic diagram of the back plate and adhesive layer provided in the embodiments of this application.

[0017] Figure 6 is a plan view of the display panel provided in an embodiment of this application. Embodiments of the present invention

[0018] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0019] In the description of this application, it should be understood that the terms "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, and "at least one" can mean one, two, or more, unless otherwise explicitly specified. In the description of this application, "perpendicular" means completely perpendicular to 90° or almost completely perpendicular, for example, the range of included angles between 80° and 100° is considered perpendicular. Similarly, "parallel" means completely parallel or almost completely parallel, for example, the range of completely parallel angles between 10° is considered parallel.

[0020] To illustrate the principle behind the technical problem in the embodiments of this application, a contrast display device is provided. It should be understood that this contrast display device is not considered prior art. As shown in Figure 1, the contrast display device includes a composite film 111, a backsheet film 112, a display element 113, a polarizing film 114, an adhesive film 115, and a cover glass 116. The backsheet film 112 and the display element 113 are bonded together using an adhesive. As can be seen from Figure 1, during the use of the contrast display device, a charge 117 is generated on the cover glass 116. This charge 117 moves along the edge of the contrast display device to the space between the backsheet film 112 and the display element 113, and then penetrates into the display element 113 from between the backsheet film 112 and the display element 113, causing the display element 113 to be subjected to electrostatic interference, resulting in display abnormalities or even failure to display.

[0021] To address the aforementioned issues, some comparative display devices employ acrylic adhesive as the bonding agent for the backplane film 112 to bond the backplane film 112 and the display element 113. However, the surface resistivity of the acrylic adhesive layer can only reach 10 Ω. 14 Even with ohms, it still cannot meet the requirements for narrow bezels.

[0022] To address the aforementioned issues, some contrast display devices incorporate rubber particles within the acrylic adhesive, which can increase the resistance to 10 ohms. 15While the adhesive material meets the anti-static requirements for narrow-bezel displays, in actual use, it was found that the rubber particles have poor thermal stability. During the bonding process, temperatures can reach over 200 degrees Celsius. At these temperatures, the adhesive material with added rubber particles exhibits reduced support, leading to bonding cracks and other problems, resulting in bonding failure and inability to display properly. Therefore, existing OLED display devices suffer from a technical challenge in simultaneously achieving both anti-static performance and bonding stability.

[0023] This application provides a display module and a display device to address the aforementioned technical problems.

[0024] Figure 2 is a schematic diagram of the display module provided in an embodiment of this application. Figure 3 is a first schematic diagram of the back panel and adhesive layer provided in an embodiment of this application, where (a) is a first planar schematic diagram of the back panel and adhesive layer, and (b) is a cross-sectional schematic diagram along A1-A2 of (a) in Figure 3. Figure 4 is a second schematic diagram of the back panel and adhesive layer provided in an embodiment of this application, where (a) is a second planar schematic diagram of the back panel and adhesive layer, and (b) is a cross-sectional schematic diagram along A1-A2 of (a) in Figure 4. Figure 5 is a third schematic diagram of the back panel and adhesive layer provided in an embodiment of this application, where (a) is a third planar schematic diagram of the back panel and adhesive layer, and (b) is a cross-sectional schematic diagram along A1-A2 of (a) in Figure 5. Figure 6 is a planar schematic diagram of the display panel provided in an embodiment of this application.

[0025] As shown in Figures 2 to 6, this application embodiment provides a display module 2, which includes a display panel 21, a back plate 22, and an adhesive layer 32. The display panel 21 includes a planar portion 211, a curved portion 212, and a bonding portion 213. The curved portion 212 is disposed between the planar portion 211 and the bonding portion 213. The planar portion 211 includes a middle portion 211a and an edge portion 211b surrounding the middle portion 211a. The back plate 22 includes a first back plate 221 and a second back plate 222. The first back plate 221... A first back plate 21 is disposed on one side of the planar portion 211 and in contact with the planar portion 211; a second back plate 222 is disposed on one side of the binding portion 213 and in contact with the binding portion 213; the first back plate 221 and the second back plate 222 are disposed opposite to each other; the adhesive layer 32 includes a first adhesive layer 321 and a second adhesive layer 322, the first adhesive layer 321 is disposed between the first back plate 221 and the planar portion 211, and the second adhesive layer 322 is disposed between the second back plate 222 and the binding portion 213;

[0026] The first adhesive layer 321 includes at least a first portion 321a, which is disposed corresponding to at least the edge portion 211b, and the impedance of the first portion 321a is greater than the impedance of the second adhesive layer 322.

[0027] This application provides a display module in which a first adhesive layer includes at least a first portion, which is disposed at least corresponding to an edge portion. The impedance of the first portion is greater than that of the second adhesive layer, so that the first portion with greater impedance can block static electricity and prevent static electricity from affecting the display portion in the display panel. The second adhesive layer with lower impedance can be formed by using a material with better thermal stability, which improves the thermal stability of the second adhesive layer compared to the first portion, thereby improving the bonding stability of the display module and thus taking into account both the antistatic effect and bonding stability of the display module.

[0028] Specifically, compared to current display devices where the overall performance of the adhesive layer is the same (though there may be some differences due to process or other factors, the overall performance of the adhesive layer can still be considered the same), for example, the adhesive layer is formed using a material with low impedance but good thermal stability, resulting in the same impedance throughout the adhesive layer, or the adhesive layer is formed by adding rubber particles to increase impedance, but the thermal stability is poor, the embodiments of this application make the impedance of the first part greater than that of the second adhesive layer. Therefore, different materials can be used to form the first part and the second adhesive layer, for example, using the same substrate and forming the first part and the second adhesive layer by doping or not doping particles, so that the performance of the first part and the second adhesive layer are different. The impedance of the first part can be greater than that of the second adhesive layer, and the thermal stability of the second adhesive layer can be greater than that of the first part, thereby taking into account both the antistatic effect and bonding stability of the display module.

[0029] In some embodiments, at a preset temperature, the rate at which the storage modulus of the first portion 321a decreases is greater than the rate at which the storage modulus of the second adhesive layer 322 decreases. By making the rate at which the storage modulus of the second adhesive layer decreases at the preset temperature less than the rate at which the storage modulus of the first portion decreases, the thermal stability of the second adhesive layer can be improved, thereby improving the bonding stability of the display module.

[0030] Specifically, at a preset temperature, the rate of decrease in the storage modulus of the first part is greater than the rate of decrease in the storage modulus of the second adhesive layer, meaning that the thermal stability of the second adhesive layer is superior to that of the first part. The preset temperature can be determined based on the characteristics of different materials. For example, at 100 degrees Celsius and above, the rate of decrease in the storage modulus of the first part is greater than that of the second adhesive layer, so the preset temperature can be any temperature at or above 100 degrees Celsius.

[0031] Specifically, the preset temperature can be greater than or equal to 200 degrees Celsius.

[0032] Specifically, as shown in Figure 2, this embodiment of the application uses the example of the binding part of the display panel in the display module bending towards the back to reduce the bezel. However, this embodiment of the application is not limited to this. The binding part of the display panel in the display module may not be bent towards the back. In this case, there is no need to set a bending part. The first back plate and the second back plate can be connected together, and the binding part can be regarded as part of the edge part.

[0033] Specifically, as shown in Figure 2, in order to reduce the bezel of the display module, a portion of the display module is bent toward the back of the display module 2. In order to further improve the flexibility of the bend, the portion of the back plate corresponding to the bend of the display panel is removed to reduce the bending radius and further reduce the bezel. However, the embodiments of this application are not limited to this. The back plate can be set to correspond to the bend of the display panel.

[0034] In some embodiments, as shown in Figures 3 to 6, the edge portion 211b includes a first edge portion 301a, a second edge portion 301b, a third edge portion 301c, and a fourth edge portion 301d. The first portion 321a is correspondingly configured with at least one of the first edge portion 301a, the second edge portion 301b, the third edge portion 301c, and the fourth edge portion 301d. By making the first portion corresponding to the first, second, third, and fourth edge portions, the area of ​​the first portion corresponding to at least one of the first, second, third, and fourth edge portions can block electrostatic charges, preventing static electricity from entering the display panel and causing display defects, thereby improving the yield of the display module.

[0035] Specifically, the middle portion of the planar part can correspond to the normal display area of ​​the display panel, and the edge portion of the planar part can correspond to the non-display area surrounding the normal display area in the display panel, where circuits can be disposed. However, the embodiments of this application are not limited to this; the edge portion can correspond to a portion of the normal display area.

[0036] Specifically, the first part can be configured to correspond to one of the first edge part, the second edge part, the third edge part, and the fourth edge part. For example, the first part can be configured to correspond to the first edge part, or the first part can be configured to correspond to the second edge part, or the first part can be configured to correspond to the third edge part, or the first part can be configured to correspond to the fourth edge part. This allows the first part to block electrostatic charges that intrude from the setting area of ​​the first edge part, or to block electrostatic charges that intrude from the setting area of ​​the second edge part, or to block electrostatic charges that intrude from the setting area of ​​the third edge part, or to block electrostatic charges that intrude from the setting area of ​​the fourth edge part, thereby reducing the electrostatic charges entering the display panel, reducing the impact of static electricity on the display panel, and improving the yield of the display module.

[0037] Specifically, the first part can be configured to correspond with two of the first edge part, second edge part, third edge part, and fourth edge part. For example, the first part can correspond to the first edge part and the second edge part, or the first part can correspond to the first edge part and the third edge part, or the first part can correspond to the first edge part and the fourth edge part, or the first part can correspond to the second edge part and the third edge part, or the first part can correspond to the second edge part and the fourth edge part, or the first part can correspond to the third edge part and the fourth edge part. In this way, the first part can block the electrostatic charge intruding from the two edge parts, reduce the electrostatic charge entering the display panel, reduce the impact of electrostatic on the display panel, and improve the yield of the display module.

[0038] Specifically, the first part can be configured to correspond with three of the first, second, third, and fourth edge parts. For example, the first part can be configured to correspond with the first, second, and third edge parts, or the first part can be configured to correspond with the first, second, and fourth edge parts, or the first part can be configured to correspond with the first, third, and fourth edge parts, or the first part can be configured to correspond with the second, third, and fourth edge parts. In this way, the first part can block the electrostatic charge intruding from the three edge parts, reduce the electrostatic charge entering the display panel, reduce the impact of electrostatic on the display panel, and improve the yield of the display module.

[0039] Specifically, when the first part is set to correspond with multiple edge parts, the parts set to correspond with multiple edge parts can be connected to each other, or the parts set to correspond with multiple edge parts can be disconnected.

[0040] In some embodiments, as shown in Figures 4 and 6, the first portion 321a is correspondingly disposed with the first edge portion 301a, the second edge portion 301b, the third edge portion 301c, and the fourth edge portion 301d, and the portions of the first portion 321a corresponding to each of the edge portions 211b are connected. By making the first portion correspondingly disposed with the first edge portion, the second edge portion, the third edge portion, and the fourth edge portion, and connecting the first portion with the portions corresponding to each edge portion, the first portion can be disposed at least around the four sides of the display panel, blocking the path of electrostatic charge entering the interior of the display panel, preventing electrostatic discharge from affecting the normal display of the display panel, and improving the yield of the display module.

[0041] Specifically, as shown in Figure 4, the parts corresponding to the first edge part 301a, the parts corresponding to the second edge part 301b, the parts corresponding to the third edge part 301c, and the parts corresponding to the fourth edge part 301d are connected together to form a closed structure surrounding the display panel. This allows the first part to block the static charge from entering the display panel from the edge, preventing static electricity from affecting the normal display of the display panel and improving the yield of the display module.

[0042] In some embodiments, as shown in Figures 4 and 6, the first adhesive layer 321 further includes a second portion 321b, which is correspondingly disposed with the intermediate portion 211a. The impedance of the second portion 321b is less than that of the first portion 321a, and at a preset temperature, the rate of decrease in the storage modulus of the second portion 321b is less than that of the first portion 321a. By including a second portion in the first adhesive layer, and having the second portion correspondingly disposed with the intermediate portion, the second portion having less impedance than the first portion, and the storage modulus of the second portion decreasing at a preset temperature at a less than that of the first portion, the first portion can block electrostatic charges invading from the surrounding area, preventing electrostatic discharge from affecting the normal display of the display panel and improving the yield of the display module.

[0043] Specifically, the impedance of the second part can be the same as the impedance of the second adhesive layer, and at a preset temperature, the rate at which the storage modulus of the second part decreases can be the same as the rate at which the storage modulus of the second adhesive layer decreases.

[0044] Specifically, the material of the second part can be the same as the material of the second adhesive layer.

[0045] Specifically, as shown in Figure 4, Figure 4(a) is a second planar schematic diagram of the back plate and adhesive layer, and Figure 4(b) is a cross-sectional schematic diagram of Figure 4(a) along line A1-A2. As can be seen from Figure 4, when forming the adhesive layer on the back plate, the material for forming the second adhesive layer can be applied at the position corresponding to the middle part and the bonding part, and the material for forming the first part can be applied at the position corresponding to the edge part.

[0046] In some embodiments, as shown in Figures 3 and 6, the first portion 321a is also correspondingly disposed with the intermediate portion 211a. By making the first portion also corresponding with the intermediate portion, the impedance of the corresponding area of ​​the planar portion is larger, and electrostatic charges cannot enter the interior of the display panel, thereby further improving the anti-static effect of the display module and increasing the yield of the display module.

[0047] Specifically, the portion of the first part 321a corresponding to the middle part 211a and the portion of the first part 321a corresponding to the edge part 211b are in contact, so that the first part is set as a whole, without the need for etching or multiple processes, thus reducing the number of process steps.

[0048] Specifically, as shown in Figure 3, Figure 3(a) is a first planar schematic diagram of the back plate and the adhesive layer, and Figure 3(b) is a cross-sectional schematic diagram of Figure 3(a) along line A1-A2. As can be seen from Figure 3, when forming the adhesive layer on the back plate, the material for forming the second adhesive layer can be applied at the position corresponding to the bonding part, and the material for forming the first part can be applied at the position corresponding to the planar part.

[0049] In some embodiments, as shown in FIG5, the first portion 321a is correspondingly disposed with the first edge portion 301a, the second edge portion 301b, the third edge portion 301c, and the fourth edge portion 301d, and at least two of the portions of the first portion 321a corresponding to the first edge portion 301a, the portions of the first portion 321a corresponding to the second edge portion 301b, the portions of the first portion 321a corresponding to the third edge portion 301c, and the portions of the first portion 321a corresponding to the fourth edge portion 301d are spaced apart. By making the first portion corresponding to the first edge portion, the second edge portion, the third edge portion, and the fourth edge portion, the first portion can block electrostatic charges invading from the corresponding areas of the first edge portion, the second edge portion, the third edge portion, and the fourth edge portion, preventing electrostatic discharge from affecting the normal display of the display panel and improving the yield of the display module.

[0050] Specifically, as shown in Figure 5, Figure 5(a) is a third planar schematic diagram of the back plate and the adhesive layer, and Figure 5(b) is a cross-sectional schematic diagram of Figure 5(a) along line A1-A2. As can be seen from Figure 5, when forming the adhesive layer on the back plate, the material for forming the second adhesive layer can be applied at the position corresponding to a part of the bonding part and the edge part, and the material for forming the first part can be applied at the position corresponding to another part of the middle part and the edge part.

[0051] Specifically, as shown in Figure 5, the parts corresponding to the first edge, the second edge, the third edge, and the fourth edge are all disconnected. However, the embodiments of this application are not limited to this. For example, the parts corresponding to the first edge and the second edge can be connected.

[0052] In some embodiments, the first portion 321a includes a first substrate and insulating particles disposed within the first substrate, the second adhesive layer 322 includes a second substrate, the first substrate and the second substrate are made of the same material, the impedance of the insulating particles is greater than the impedance of the first substrate, and at a preset temperature, the rate of decrease of the storage modulus of the insulating particles is greater than the rate of decrease of the storage modulus of the first substrate. By making the first part include a first substrate and insulating particles, and the second adhesive layer include a second substrate, with the first substrate and the second substrate being made of the same material, and the impedance of the insulating particles being greater than that of the first substrate, and the rate at which the storage modulus of the insulating particles decreases being greater than that of the storage modulus of the first substrate at the preset temperature, the impedance of the first part can be increased by the insulating particles, while the second adhesive layer does not need to contain insulating particles, thus improving the thermal stability of the second part. Furthermore, by ensuring that the first part is at least corresponding to the edge portion, and the second adhesive layer is corresponding to the bonding portion, the first part with greater impedance blocks static electricity at the corresponding position of the edge portion, preventing static electricity from affecting the internal structure of the display panel. The second adhesive layer with less impedance is corresponding to the bonding portion, preventing the addition of insulating particles to the second adhesive layer from causing a decrease in stability, thereby improving the bonding stability of the display module and thus balancing the antistatic effect and bonding stability of the display module.

[0053] In some embodiments, the first substrate comprises acrylic material and the insulating particles comprise rubber. By including acrylic material in the first substrate and rubber in the insulating particles, the impedance of the first portion can be increased, enabling the first portion to block static electricity from penetrating into the interior of the display panel. Furthermore, since no rubber is added to the second adhesive layer, the thermal stability of the second adhesive layer can be improved, thereby achieving both the antistatic effect and bonding stability of the display module.

[0054] Specifically, the resistance of the first part is greater than or equal to 10. 15 ohm.

[0055] Specifically, the material of the second part can be a second substrate.

[0056] Specifically, the above embodiments use acrylic material as an example for illustrating the first substrate material. However, the embodiments of this application are not limited to this. The material of the first substrate can be other adhesive materials, but it is necessary to ensure that the resistance of the first part is greater than or equal to 10. 15 The second adhesive layer has good thermal stability.

[0057] In some embodiments, as shown in FIG2, the display module 2 further includes a cover plate 26 and an adhesive layer 25. The cover plate 26 is disposed on the side of the display panel 21 away from the back plate 22, and the adhesive layer 25 is disposed between the cover plate 26 and the display panel 21. The impedance of the first portion 411 is greater than the impedance of the adhesive layer 25. By making the impedance of the first portion greater than the impedance of the adhesive layer, the first portion can block static electricity from entering the display panel. Even if static charge enters the display panel from the adhesive layer side, the static electricity can be discharged because the side of the display panel near the adhesive layer is provided with metal, thus preventing static electricity from affecting the display panel and improving the yield of the display module.

[0058] Specifically, it is understandable that static electricity is generally generated on the upper surface of the cover plate 26 and then moves to various components. Since static electricity on the cover plate and adhesive layers will not affect the normal display, the static electricity can exist within the cover plate, adhesive layers, and other film layers. Furthermore, the side of the display panel near the cover plate will be provided with metal or other conductive materials to conduct static electricity. However, the side of the display panel near the back plate is the substrate, which cannot conduct static electricity. Therefore, it is necessary to prevent static electricity from entering from the side of the display panel near the back plate. Thus, the impedance of the first part can be made greater than the impedance of the adhesive layer between other film layers, so that the static electricity is released by other components or by the side of the display panel with conductive materials, preventing static electricity from damaging the display panel and improving the yield of the display module.

[0059] Specifically, as shown in Figure 2, the display module 2 also includes a polarizer 24, which is disposed between the display panel 21 and the adhesive layer 25. The polarizer 24 and the display panel 21 can be bonded together by another adhesive layer. In this case, the impedance of the first part can be greater than the impedance of the adhesive layer located between the polarizer and the display panel.

[0060] Specifically, as shown in Figure 2, the display module 2 also includes a composite layer 23, which includes a mesh adhesive layer 231, a foam layer 232, and a heat dissipation layer 233. However, the embodiments of this application are not limited to this, and the composite layer can be a composite layer with other structures. The composite layer 23 and the back plate 22 can be bonded together by another adhesive layer. In this case, the impedance of the first part can be made greater than the impedance of the adhesive layer located between the composite layer and the back plate.

[0061] Specifically, as shown in Figure 2, the display module 2 also includes double-sided tape 27 and flexible circuit board 28. One end of the flexible circuit board 28 is bound to the display panel 21, and the other end of the flexible circuit board 28 is connected to the composite layer 23 through double-sided tape 27.

[0062] Specifically, as shown in Figure 2, the display module 2 also includes a driver chip 29, which is attached to the display panel.

[0063] Specifically, as shown in Figure 2, the display module 2 also includes a UV curing adhesive 31, which is provided correspondingly to the bent portion 212. The UV curing adhesive 31 is provided on one side of the display panel 21. By providing the UV curing adhesive, the display panel can be protected.

[0064] Specifically, the back panel material includes polyethylene terephthalate.

[0065] Specifically, it is understandable that since there is no conductive material between the back panel and the display panel, static electricity entering from this point can damage the display panel and affect normal display. Other film layers do not bear the display function. There is conductive material on the side of the display panel near the polarizer that can release static electricity. Therefore, in addition to the need to set a high-impedance insulating material between the back panel and the display panel to block static electricity, the presence or release of static electricity in other areas will reduce the risk of static electricity intrusion between the back panel and the display panel. Therefore, the impedance of the adhesive layer can be made greater than the impedance of the adhesive layer in other locations, reducing the risk of static electricity damage to the display panel and improving the yield of the display module.

[0066] The above embodiments have provided a detailed description of the display module from the perspective of each film layer and the combination of each film layer. It is understood that when there is no conflict between the embodiments, the embodiments can be combined. For example, the edge portion includes a first edge portion, a second edge portion, a third edge portion, and a fourth edge portion. The first portion is correspondingly disposed with at least one of the first edge portion, the second edge portion, the third edge portion, and the fourth edge portion. The display module also includes a cover plate and an adhesive layer. The cover plate is disposed on the side of the display panel away from the back plate. The adhesive layer is disposed between the cover plate and the display panel. The impedance of the first portion is greater than the impedance of the adhesive layer.

[0067] Meanwhile, this application provides a display device, which includes a display module as described in any of the above embodiments.

[0068] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0069] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0070] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0071] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A display module, comprising: The display panel includes a flat portion, a curved portion, and a bonding portion, wherein the curved portion is disposed between the flat portion and the bonding portion, and the flat portion includes a middle portion and an edge portion surrounding the middle portion; The backplate includes a first backplate and a second backplate. The first backplate is disposed on one side of the planar portion and contacts the planar portion. The second backplate is disposed on one side of the binding portion and contacts the binding portion. The first backplate and the second backplate are disposed opposite to each other. An adhesive layer includes a first adhesive layer and a second adhesive layer, wherein the first adhesive layer is disposed between the planar portion and the first back plate, and the second adhesive layer is disposed between the bonding portion and the second back plate; The first adhesive layer includes at least a first portion, which is disposed corresponding to at least the edge portion, and the impedance of the first portion is greater than the impedance of the second adhesive layer.

2. The display module according to claim 1, wherein, The edge portion includes a first edge portion, a second edge portion, a third edge portion, and a fourth edge portion, wherein the first portion is configured to correspond to at least one of the first edge portion, the second edge portion, the third edge portion, and the fourth edge portion.

3. The display module according to claim 2, wherein, The first part is configured corresponding to the first edge part, the second edge part, the third edge part, and the fourth edge part, and the respective parts of the first part that are configured corresponding to each of the edge parts are connected.

4. The display module according to claim 3, wherein, The first adhesive layer further includes a second part, which is disposed corresponding to the middle part. The impedance of the second part is less than that of the first part, and at a preset temperature, the rate at which the storage modulus of the second part decreases is less than that of the storage modulus of the first part.

5. The display module according to claim 3, wherein, The first part is also configured to correspond to the middle part.

6. The display module according to any one of claims 1 to 5, wherein, At a preset temperature, the rate at which the storage modulus of the first portion decreases is greater than the rate at which the storage modulus of the second adhesive layer decreases.

7. The display module according to any one of claims 1 to 5, wherein, The first part includes a first substrate and insulating particles disposed within the first substrate. The second adhesive layer includes a second substrate. The first substrate and the second substrate are made of the same material. The impedance of the insulating particles is greater than that of the first substrate. At a preset temperature, the rate at which the storage modulus of the insulating particles decreases is greater than that of the storage modulus of the first substrate.

8. The display module according to claim 7, wherein, The first substrate comprises acrylic material, and the insulating particles comprise rubber.

9. The display module according to claim 1, wherein, The display module further includes a cover plate and an adhesive layer. The cover plate is disposed on the side of the display panel away from the back plate, and the adhesive layer is disposed between the cover plate and the display panel. The impedance of the first part is greater than the impedance of the adhesive layer.

10. The display module according to claim 1, wherein, The material of the back panel includes polyethylene terephthalate.

11. A display device comprising a display module, the display module comprising: The display panel includes a flat portion, a curved portion, and a bonding portion, wherein the curved portion is disposed between the flat portion and the bonding portion, and the flat portion includes a middle portion and an edge portion surrounding the middle portion; The backplate includes a first backplate and a second backplate. The first backplate is disposed on one side of the planar portion and contacts the planar portion. The second backplate is disposed on one side of the binding portion and contacts the binding portion. The first backplate and the second backplate are disposed opposite to each other. An adhesive layer includes a first adhesive layer and a second adhesive layer, wherein the first adhesive layer is disposed between the planar portion and the first back plate, and the second adhesive layer is disposed between the bonding portion and the second back plate; The first adhesive layer includes at least a first portion, which is disposed corresponding to at least the edge portion, and the impedance of the first portion is greater than the impedance of the second adhesive layer.

12. The display device according to claim 11, wherein, The edge portion includes a first edge portion, a second edge portion, a third edge portion, and a fourth edge portion, wherein the first portion is configured to correspond to at least one of the first edge portion, the second edge portion, the third edge portion, and the fourth edge portion.

13. The display device according to claim 12, wherein, The first part is configured corresponding to the first edge part, the second edge part, the third edge part, and the fourth edge part, and the respective parts of the first part that are configured corresponding to each of the edge parts are connected.

14. The display device according to claim 13, wherein, The first adhesive layer further includes a second part, which is disposed corresponding to the middle part. The impedance of the second part is less than that of the first part, and at a preset temperature, the rate at which the storage modulus of the second part decreases is less than that of the storage modulus of the first part.

15. The display device according to claim 13, wherein, The first part is also configured to correspond to the middle part.

16. The display device according to any one of claims 11 to 15, wherein, At a preset temperature, the rate at which the storage modulus of the first portion decreases is greater than the rate at which the storage modulus of the second adhesive layer decreases.

17. The display device according to any one of claims 11 to 15, wherein, The first part includes a first substrate and insulating particles disposed within the first substrate. The second adhesive layer includes a second substrate. The first substrate and the second substrate are made of the same material. The impedance of the insulating particles is greater than that of the first substrate. At a preset temperature, the rate at which the storage modulus of the insulating particles decreases is greater than that of the storage modulus of the first substrate.

18. The display device according to claim 17, wherein, The first substrate comprises acrylic material, and the insulating particles comprise rubber.

19. The display device according to claim 11, wherein, The display module further includes a cover plate and an adhesive layer. The cover plate is disposed on the side of the display panel away from the back plate, and the adhesive layer is disposed between the cover plate and the display panel. The impedance of the first part is greater than the impedance of the adhesive layer.

20. The display device according to claim 11, wherein, The material of the back panel includes polyethylene terephthalate.

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