Display module, method for manufacturing display module, and display device

Abstract

The present invention discloses a display module, a method for manufacturing a display module, and a display device. The display module includes: a display panel; a panel back film assembly, the panel back film assembly being located on the back of the display panel, the panel back film assembly being provided with at least one first through hole penetrating the panel back film assembly; a metal layer, the metal layer being located on the surface of the panel back film assembly away from the display panel, the metal layer being grounded; and a conductive filler, the conductive filler being filled in the first through hole and being arranged in contact with the metal layer. Thus, the static electricity generated by the display panel can be channeled through the conductive filler. When static electricity is generated during use of the display module, the static electricity can be rapidly dissipated along the path of the conductive filler, thereby effectively avoiding the adverse effects of static electricity on the display effect and ensuring that the display effect of the display module will not be abnormal due to static electricity.

Description

Technical Field

[0001] The present invention belongs to the field of display technology, and in particular relates to a display module, a method for manufacturing a display module, and a display device. Background Art

[0002] During use, display modules generate static electricity due to various factors. This static electricity can damage the display panel, causing display artifacts. Existing technologies typically design static electricity dissipation circuits around the edges of display modules. However, this approach is complex and involves numerous static-inducing factors, resulting in poor static dissipation effectiveness. It's difficult to completely eliminate the adverse effects of static electricity on the display, and it also presents significant manufacturing challenges.

[0003] Therefore, it is necessary to improve the display module. Summary of the Invention

[0004] The present invention provides a display module, a method for manufacturing the display module, and a display device, aiming to solve the problem of static electricity conduction in the display module.

[0005] In order to improve the above technical problems, the present invention provides a display module, which includes: a display panel; a panel back film assembly, the panel back film assembly is located on the back of the display panel, and the panel back film assembly is provided with at least one first through hole penetrating the panel back film assembly; a metal layer, the metal layer is located on the surface of the panel back film assembly away from the display panel, and the metal layer is grounded; a conductive filler, the conductive filler is filled in the first through hole and is arranged in contact with the metal layer. Thus, the static electricity generated by the display panel can be channeled through the conductive filler. When static electricity is generated during the use of the display module, the static electricity can be quickly dissipated along the path of the conductive filler, thereby effectively eliminating the adverse effects of static electricity on the display effect, effectively avoiding damage to the display panel caused by static electricity, and ensuring that the display effect of the display module will not be abnormal due to static electricity.

[0006] It should be noted that grounding the metal layer means that the metal layer conducts static electricity through a grounding portion on the flexible circuit board fixed on the surface of the metal layer.

[0007] According to an embodiment of the present invention, in the direction away from the metal layer, the panel back film assembly includes a heat dissipation layer and a protective layer stacked in sequence, the protective layer is provided with at least one second through hole penetrating the protective layer, and the second through hole is connected to the first through hole, and the conductive filler fills the second through hole. The protective layer is located on the side close to the display panel, and the protective layer can protect the back of the display panel to prevent the back of the display panel from being scratched by external force and causing poor display. Therefore, the protective layer is provided with a first through hole and a second through hole, and the size of the through hole on the protective layer is larger than the size of the through hole on the heat dissipation layer, which can increase the contact area between the conductive filler filled in the through hole and the display panel, which is more conducive to the conduction of static electricity generated by the display panel, further accelerates the dissipation speed of static electricity, and more effectively reduces the adverse effects caused by static electricity.

[0008] According to an embodiment of the present invention, the second through holes are the same in number as the first through holes and are arranged in a one-to-one correspondence, thereby more effectively reducing adverse effects caused by static electricity.

[0009] According to an embodiment of the present invention, the second through hole is located on a side of the first through hole close to the outer edge of the panel back film assembly and extends to the outer edge of the panel back film assembly. Since static electricity in the display panel is transmitted from the middle to the edge, the second through hole of the present invention can extend to the outer edge of the panel back film assembly, so that the conductive filler filled in the second through hole can contact the outer edge of the panel back film assembly, which is more conducive to the conduction of static electricity at the outer edge of the display panel. Static electricity can be dissipated more quickly through the conductive filler path, further reducing the adverse effects caused by static electricity.

[0010] According to an embodiment of the present invention, at least one of the second through holes has a first branch and a second branch, and the first branch and the second branch are intersecting and connected. Thus, by providing the first branch and the second branch, the contact area between the conductive filler filling the first branch and the second branch and the display panel is further increased, which is more conducive to the conduction of static electricity generated by the display panel, further accelerating the dissipation of static electricity, and further reducing the adverse effects caused by static electricity.

[0011] According to an embodiment of the present invention, the first branch and the second branch are intersecting and connected by at least one of the following methods: the first branch and the second branch are both in contact with and connected to the first through hole; the first branch is in contact with and connected to the second branch, and the first branch or the second branch is in contact with and connected to the first through hole. The intersecting and connected configuration of the first branch and the second branch can be achieved by any of the above methods, or both of the above methods can be simultaneously implemented in the display module. In other words, regardless of the method by which the first branch and the second branch are connected, as long as the first branch and the second branch can intersect and be connected at the same time, it is sufficient.

[0012] According to an embodiment of the present invention, the heat dissipation layer includes multiple stacked sub-layers, wherein adjacent sub-layers have different thermal conductivities. This can accelerate the dissipation of heat in the display module and effectively avoid the adverse effects caused by excessive heat.

[0013] According to an embodiment of the present invention, the panel back film assembly is provided with a plurality of first through holes, dispersed around the periphery of the panel back film assembly. Conductive fillers are filled in the first through holes, that is, one end of the conductive filler contacts the periphery of the panel back film assembly. As a result, static electricity generated around the display panel can be rapidly transmitted and dissipated through the conductive filler in direct contact with the panel back film assembly, further accelerating the dissipation of static electricity, more effectively avoiding the adverse effects of static electricity, and further ensuring the display quality of the display module.

[0014] The present invention also provides a method for manufacturing a display module, comprising: providing a grounded metal layer; forming a panel backing film assembly on one surface of the metal layer, and forming at least one first through-hole in the panel backing film assembly that penetrates the panel backing film assembly; filling the first through-hole with a conductive filler, the conductive filler being disposed in contact with the metal layer; and laminating the panel backing film assembly filled with the conductive filler to the back surface of a display panel. This allows static electricity generated by the display panel to be quickly dissipated by the conductive filler, effectively avoiding the adverse effects of static electricity.

[0015] According to an embodiment of the present invention, the step of forming the panel back film assembly in a direction away from the metal layer includes sequentially forming a stacked heat dissipation layer and a protective layer, and forming at least one second through-hole in the protective layer, the second through-hole being connected to the first through-hole, and the conductive filler filling the second through-hole. Thus, the provision of the first and second through-holes in the protective layer increases the contact area between the conductive filler filling the through-hole and the display panel, accelerating the dissipation of static electricity and further reducing the adverse effects caused by static electricity.

[0016] In some embodiments of the present invention, the method for manufacturing a display module has all the features and advantages of the display module described above, which will not be described in detail here.

[0017] The present invention further provides a display device. According to an embodiment of the present invention, the display device includes the display module described above. As a result, static electricity generated by the display panel has minimal negative impact on the display device, effectively ensuring the display quality and service life of the display device. Those skilled in the art will appreciate that the display device possesses all the features and advantages of the display module described above, and further details will not be provided here. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of a display module in one embodiment of the present invention;

[0019] Figure 2 is a top view of a panel back film assembly in one embodiment of the present invention;

[0020] Figure 3 is a structural schematic diagram of a display module in another embodiment of the present invention;

[0021] Figure 4 is a top view of a panel back film assembly in another embodiment of the present invention;

[0022] Figure 5 is a top view of a panel back film assembly in another embodiment of the present invention;

[0023] Figure 6 is a top view of a panel back film assembly in another embodiment of the present invention;

[0024] Figure 7 is a structural schematic diagram of a display module in another embodiment of the present invention;

[0025] Figure 8 is a structural schematic diagram of a display module in another embodiment of the present invention;

[0026] Figure 9This is a flow chart of a method for manufacturing a display module in another embodiment of the present invention.

[0027] Description of Reference Numerals

[0028] 100-display panel, 200-panel back film assembly, 210-heat dissipation layer, 211-first sub-heat dissipation layer, 212-second sub-heat dissipation layer, 220-protective layer, 300-metal layer, 400-conductive filler, a-first through hole, b-second through hole, b1-first branch, b2-second branch, 500-polarizer, 600-glue layer, 700-cover plate. DETAILED DESCRIPTION

[0029] The embodiments of the present application are described in detail below. The embodiments described below are exemplary and are only used to explain the present application, and should not be construed as limiting the present application. Where specific techniques or conditions are not specified in the embodiments, they are performed according to the techniques or conditions described in the literature in this area or according to the product specifications. Reagents used that do not specify the manufacturer are conventional products that can be obtained commercially.

[0030] Currently, static electricity drainage circuits are usually set on the outer edges of display modules to drain static electricity. However, due to the many static electricity inducing factors in display modules, it is difficult to completely eliminate the adverse effects of static electricity on display effects, and the process difficulty is increased.

[0031] In order to improve the above technical problems, the present invention provides a display module, referring to Figure 1 and Figure 2 ( Figure 1 It is along Figure 2 (a cross-sectional view taken along the AA' direction of the display panel 100), the display module includes a display panel 100, a panel back film assembly 200, a metal layer 300 and a conductive filler 400, wherein the panel back film assembly 200 is located on the back of the display panel 100, and the panel back film assembly 200 is provided with at least one first through hole a that penetrates the panel back film assembly 200, the metal layer 300 is located on the surface of the panel back film assembly 200 away from the display panel 100, and the metal layer 300 is grounded; the conductive filler 400 is filled in the first through hole a and is arranged in contact with the metal layer 300. As a result, the static electricity generated by the display panel 100 can be transmitted to the metal layer 300 through the conductive filler 400, and then the static electricity can be dissipated through the grounded metal layer 300. When static electricity is generated by the display panel 100 during use, the static electricity can be quickly dissipated along the path of the conductive filler 400, thereby effectively avoiding damage to the display panel 100 caused by static electricity, and ensuring that the display effect of the display module will not be abnormal due to static electricity.

[0032] Specifically, grounding the metal layer means that the metal layer conducts static electricity through a grounding portion on the flexible circuit board fixed on the surface of the metal layer.

[0033] It should be noted that the back side of the display panel 100 refers to the side opposite to the front side of the display panel 100, and the front side of the display panel 100 refers to the side where the user can observe the content displayed on the display panel 100. In other words, the back side of the display panel 100 refers to the side away from the front side, and various components can be set on the back side of the display panel 100.

[0034] According to embodiments of the present invention, the metal material forming metal layer 300 has the advantage of rapid heat dissipation, allowing heat in the display module to be quickly dissipated, thereby avoiding the adverse effects caused by excessive heat. Furthermore, the material forming metal layer 300 includes, but is not limited to, copper, and the conductive filler 400 may be a conductive adhesive, including, but not limited to, silver adhesive.

[0035] In some embodiments of the present invention, reference Figure 3 and Figure 4 ( Figure 3 It is along Figure 4 (a cross-sectional view in the BB' direction) In the direction away from the metal layer 300, the panel back film assembly 200 includes a heat dissipation layer 210 and a protective layer 220 stacked in sequence, and the protective layer 220 is provided with at least one second through hole b that penetrates the protective layer 220, and the second through hole b is connected to the first through hole a, and the conductive filler 400 fills the second through hole b. Among them, the heat dissipation layer 210 is arranged on the side close to the metal layer 300, and the protective layer 220 is arranged on the side close to the display panel 100. The protective layer 220 can protect the back of the display panel 100, prevent external forces from scratching the back of the display panel 100, and avoid the appearance of marks and other poor display in the display area of ​​the display module. Therefore, by providing the first through hole a and the second through hole b, and filling these through holes with the conductive filler 400, the contact area between the conductive filler 400 and the display panel 100 can be further increased, so that the static electricity in the display panel 100 can be transmitted and dissipated more quickly.

[0036] The number of the second through holes b is at least one, that is, it can be 1, 2, 3, 4, or more. The number of the first through holes a can be the same as or different from the number of the second through holes b. In addition, if necessary, the second through holes b can only penetrate the protective layer 220 and not extend to the heat dissipation layer 210. Alternatively, the second through holes b can penetrate the protective layer 220 and extend to a portion of the heat dissipation layer 210, that is, they do not penetrate the heat dissipation layer 210.

[0037] In some embodiments of the present invention, the number of the second through holes b and the number of the first through holes a are the same and are arranged in a one-to-one correspondence. It should be noted that the number of the second through holes b and the number of the first through holes a can be multiple, specifically, they can be positive integers greater than or equal to 2. The one-to-one correspondence means that one second through hole b is connected to one first through hole a, such as Figure 4As shown, the contact area between the conductive filler 400 and the display panel 100 can be further increased, so that the static electricity generated by the display panel 100 can be dissipated more quickly.

[0038] Preferably, the first through hole a and the second through hole b are provided in the frame area of ​​the display module, which can eliminate static electricity and prevent poor appearance such as marks on the display area of ​​the display module.

[0039] According to an embodiment of the present invention, Figure 4 As shown, the second through hole b is located on the side of the first through hole a close to the outer edge of the panel back film assembly 200 and extends to the outer edge of the panel back film assembly 200. Since static electricity in the display panel 100 is transmitted from the middle to the edge, the second through hole b extends to the outer edge of the panel back film assembly 200. In this way, the conductive filler 400 fills the first through hole a and the second through hole b, so as shown in FIG. Figure 3 As shown, the conductive filler 400 extends from the first through hole a to the second through hole b, that is, the conductive filler 400 extends to the outer edge of the panel back film assembly 200, which can quickly guide and dissipate the static electricity generated by the display panel 100, further avoiding the damage to the display panel 100 caused by static electricity, and further ensuring that the display effect of the display module will not be abnormal due to static electricity.

[0040] It should be noted that the outer edge of the panel back film assembly refers to the side of the panel back film assembly, that is, the edgemost position away from the center of the panel back film assembly.

[0041] According to some embodiments of the present invention, reference Figure 5 and Figure 6 At least one second through hole b has a first branch b1 and a second branch b2, and the first branch b1 and the second branch b2 are intersecting and connected. It should be noted that in the embodiment of the present invention, all second through holes b may have a first branch b1 and a second branch b2, or a portion of the plurality of second through holes b may have a first branch b1 and a second branch b2, such as Figure 5 and Figure 6 As shown, only a portion of the second through holes b have two branches, namely, a first branch b1 and a second branch b2, while the other portion of the second through holes b has only one branch. Those skilled in the art can adjust the number of second through holes b with first branches b1 and second branches b2 according to usage requirements.

[0042] It should be noted that the intersection of the first branch b1 and the second branch b2 means that the first branch b1 and the second branch b2 have an intersection. The present invention does not limit the angle of intersection, and those skilled in the art can choose according to usage requirements. For example, the angle of intersection can be greater than 90 degrees, equal to 90 degrees, or less than 90 degrees, etc.

[0043] When the second through hole b has a first branch b1 and a second branch b2, at least one of the first branch b1 and the second branch b2 is connected to the outer edge of the panel back film assembly 200, for example, one of the first branch b1 and the second branch b2 can be connected to the outer edge of the panel back film assembly 200, or both of the first branch b1 and the second branch b2 can be connected to the outer edge of the panel back film assembly 200 (such as Figure 5 and Figure 6 shown).

[0044] According to an embodiment of the present invention, the first branch b1 and the second branch b2 are intersected and connected by at least one of the following methods: Figure 5 , the first branch b1 and the second branch b2 are both in contact with the first through hole a to achieve a communication setting, that is, the first branch b1 and the second branch b2 are both in contact with the first through hole a, and the first branch b1 and the second branch b2 are communicated through the first through hole a, rather than the first branch b1 and the second branch b2 being in direct contact and communication; Figure 6 , the first branch b1 is in contact with the second branch b2 and is in communication with the first through hole a. Figure 6 (Take the first branch b1 and the first through hole a as an example, that is, the first branch b1 and the second branch b2 are in direct contact and connected at a position other than the first through hole a, and one of the first branch b1 and the second branch b2 is in contact and connected with the first through hole a. The manner in which the first branch and the second branch are crossed and connected can be achieved by any of the above-mentioned methods, or both of the above-mentioned methods can be simultaneously provided in the display module. Regardless of which of the above-mentioned methods the first branch b1 and the second branch b2 are connected, as long as the intersection of the first branch b1 and the second branch b2 can be achieved and the connection can be achieved at the same time. In this way, the static electricity generated by the display panel 100 can be more effectively channeled and dissipated, further avoiding damage to the display panel 100 caused by static electricity.

[0045] According to an embodiment of the present invention, heat dissipation layer 210 includes a plurality of stacked sub-heat dissipation layers, wherein adjacent sub-heat dissipation layers have different thermal conductivities. The present invention does not limit the number of sub-heat dissipation layers, and those skilled in the art may select the number of sub-heat dissipation layers based on usage requirements. For example, the number of sub-heat dissipation layers may be two, three, four, or more.

[0046] The heat dissipation layer 200 has a heat dissipation function. When the heat dissipation layer 210 includes multiple stacked sub-heat dissipation layers, the present invention does not limit the variation trend of the thermal conductivity of the multiple sub-heat dissipation layers. For example, in the direction away from the metal layer 300, the variation trend of the thermal conductivity of the multiple sub-heat dissipation layers can be gradually increasing, gradually decreasing, first gradually increasing and then gradually decreasing, or first gradually decreasing and then gradually increasing. Alternatively, two different sub-heat dissipation layers can be alternately stacked (for example, copper foil and aluminum foil are alternately stacked). Those skilled in the art can select the appropriate material for the sub-heat dissipation layer based on the application requirements.

[0047] According to an embodiment of the present invention, materials of the plurality of heat dissipation sub-layers are independently selected from foam, graphite, copper foil, and aluminum foil.

[0048] According to some embodiments of the present invention, the number of sub-heat dissipation layers may be 2, referring to Figure 7 In the direction away from the metal layer 300, the heat dissipation layer 210 includes a first sub-heat dissipation layer 211 and a second sub-heat dissipation layer 212 stacked together. This allows the display module to achieve rapid heat dissipation and avoid adverse effects caused by excessive heat.

[0049] According to some embodiments of the present invention, the material of the protective layer 220 is an insulating material. The present invention does not limit the specific type of the insulating material, and those skilled in the art can select it according to usage requirements.

[0050] The inventors found that the existing static electricity drainage circuit is set on the outside of the display module, and the outside of the display module also needs to be provided with a signal receiving structure. The existing static electricity drainage circuit cannot completely surround the display module. The static electricity on the display panel 100 near the side of the signal receiving structure cannot be effectively transmitted and dissipated, resulting in poor static electricity drainage effect of the existing display module. In order to solve this technical problem, in an embodiment of the present invention, as shown in FIG. Figures 4 to 6 A plurality of first through holes a are provided in the panel back film assembly 200, and the plurality of first through holes a are dispersed around the panel back film assembly 200. Thus, the static electricity around the display panel 100 can be quickly transmitted to the metal layer 300 through the conductive filler 400 filled in the first through holes a, and dissipated through the grounded metal layer 300. The static electricity can be quickly transmitted and dissipated, further effectively improving the static electricity conduction effect of the display module, and further improving the defect of the poor static electricity conduction effect of the existing display module.

[0051] The panel back film assembly 200 includes a first region and a second region surrounding the first region. The orthographic projection of the first region on the metal layer 300 overlaps with the orthographic projection of the display area of ​​the display panel 100 on the metal layer 300, and the orthographic projection of the second region on the metal layer 300 overlaps with the orthographic projection of the peripheral area of ​​the display panel 100 on the metal layer 300. The present invention does not limit the positions of the first through hole a and the second through hole b. For example, the first through hole a and the second through hole b can both be located in the second region, or a portion of the first through hole a and the second through hole b can be located in the first region and another portion of the first through hole a and the second through hole b can be located in the second region, or the first through hole a can be located in the first region and the second through hole b can be located in the second region.

[0052] According to some embodiments of the present invention, reference Figure 8 The display module further includes a polarizer 500, an adhesive layer 600, and a cover plate 700. The polarizer 500 is located on the side of the display panel 100 away from the panel back film assembly 200, the adhesive layer 600 is located on the side of the polarizer 500 away from the display panel 100, and the cover plate 700 is located on the side of the adhesive layer 600 away from the polarizer 500. This allows the display module to have a better display effect.

[0053] In some embodiments of the present invention, the material forming the adhesive layer 600 may be optical adhesive, ie, OCA. The material forming the cover plate 700 may be glass.

[0054] According to an embodiment of the present invention, the display module is an OLED display module, and the display panel 100 includes an OLED functional layer, that is, an anode, a light-emitting layer, and a cathode that are stacked.

[0055] The present invention also provides a method for manufacturing a display module, referring to Figure 9 , the method comprising:

[0056] S100, providing a metal layer 300, where the metal layer 300 is grounded;

[0057] Metal layer 300 is grounded, allowing static electricity transferred to metal layer 300 to dissipate through it. The metal material of metal layer 300 also has the advantage of rapid heat dissipation, allowing heat in the display module to be quickly dissipated, avoiding the adverse effects of excessive heat. In some embodiments of the present invention, the material forming metal layer 300 includes copper or aluminum.

[0058] S200, forming a panel back film assembly 200 on one surface of the metal layer 300, and forming at least one first through hole a penetrating the panel back film assembly 200 in the panel back film assembly 200;

[0059] In the direction away from the metal layer 300, the step of forming the panel back film assembly 200 includes the steps of sequentially forming a stacked heat dissipation layer 210 and a protective layer 220, and forming at least one second through hole b in the protective layer 220 that passes through the protective layer 220, and the second through hole b is connected to the first through hole a, and the conductive filler 400 fills the second through hole b.

[0060] The present invention does not limit the method of forming the first through hole a and the second through hole b, and those skilled in the art can select according to needs. For example, the first through hole a and the second through hole b can be formed by an etching process.

[0061] S300, filling the first through hole a with a conductive filler 400, and the conductive filler 400 is disposed in contact with the metal layer 300;

[0062] According to an embodiment of the present invention, the raw material of the conductive filler 400 can be in a fluid, colloid-like form at room temperature, allowing it to extend into the gaps between the first through-hole a and / or the second through-hole b. After the raw material of the conductive filler 400 is filled, light curing or thermal curing is performed to form a dense and conductive conductive filler 400. In some embodiments of the present invention, the conductive filler 400 is a conductive adhesive.

[0063] S400 , attaching the panel back film assembly 200 filled with the conductive filler 400 to the back surface of the display panel 100 .

[0064] The back side of the display panel 100 refers to the side away from the front side. One end of the conductive filler 400 is connected to the display panel 100, and the other end of the conductive filler 400 is connected to the metal layer 300. The metal layer 300 is grounded. Therefore, the conductive filler 400 can quickly conduct the static electricity generated by the display panel 100 to the metal layer 300. The static electricity can be quickly dissipated through the grounded metal layer 300, thereby eliminating the adverse effects of static electricity on the display effect, avoiding damage to the display panel 100 caused by static electricity, and ensuring that the display effect of the display module will not be abnormal due to static electricity.

[0065] In some embodiments of the present invention, the method for manufacturing a display module has all the features and advantages of the display module described above, which will not be described in detail here.

[0066] The present invention further provides a display device. According to an embodiment of the present invention, the display device includes the display module described above. As a result, static electricity generated by the display panel 100 has minimal negative impact on the display device, effectively ensuring the display quality and service life of the display device. Those skilled in the art will appreciate that the display device possesses all the features and advantages of the display module described above, and further details will not be provided here.

[0067] According to the embodiments of the present invention, there are no special requirements for the specific type of the display device, and those skilled in the art can flexibly select the type based on actual needs. In some embodiments, the specific types of the display device include, but are not limited to, mobile phones, computers, televisions, game consoles, display screens, and other electronic devices with display functions.

[0068] Unless otherwise contradictory, those skilled in the art may combine and combine the different examples and features of the different examples described in this specification. Furthermore, it should be noted that the terms "first" and "second" in this specification are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly specifying the number of the technical features indicated.

[0069] The embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific details of the above embodiments. Within the technical concept of the present invention, various simple variations of the technical solution of the present invention can be made, and these simple variations all fall within the scope of protection of the present invention. It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction.

[0070] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0071] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A display module, characterized in that: The display module includes: Display panel; A panel back film assembly, the panel back film assembly being located on the back of the display panel, and the panel back film assembly being provided with at least one first through hole penetrating the panel back film assembly; a metal layer, the metal layer being located on a surface of the panel back film assembly away from the display panel and being grounded; a conductive filling member, the conductive filling member being filled in the first through hole and being arranged in contact with the metal layer; In the direction away from the metal layer, the panel back film assembly includes a heat dissipation layer and a protective layer stacked in sequence, the protective layer is provided with at least one second through hole passing through the protective layer, and the second through hole is connected to the first through hole, and the conductive filler fills the second through hole.

2. The display module according to claim 1, wherein: The second through holes are the same in number as the first through holes and are arranged in a one-to-one correspondence.

3. The display module according to claim 2, wherein: The second through hole is located on a side of the first through hole close to the outer edge of the panel back film assembly and extends to the outer edge of the panel back film assembly.

4. The display module according to claim 3, wherein: At least one of the second through holes has a first branch and a second branch, and the first branch and the second branch intersect and are connected.

5. The display module according to claim 4, wherein: The first branch and the second branch are intersected and connected by at least one of the following methods: The first branch and the second branch are both in contact with and communicate with the first through hole; The first branch is in contact with and communicates with the second branch, and the first branch or the second branch is in contact with and communicates with the first through hole.

6. The display module according to any one of claims 1 to 2, characterized in that: The heat dissipation layer includes a plurality of stacked sub-heat dissipation layers, and adjacent sub-heat dissipation layers in the plurality of sub-heat dissipation layers have different thermal conductivities.

7. The display module according to any one of claims 1 to 2, characterized in that: The panel back film assembly is provided with a plurality of the first through holes, and the plurality of the first through holes are dispersedly arranged around the panel back film assembly.

8. A method for manufacturing the display module according to any one of claims 1 to 7, characterized in that: The method comprises: providing a metal layer, wherein the metal layer is grounded; forming a panel back film assembly on one surface of the metal layer, and forming at least one first through hole penetrating the panel back film assembly in the panel back film assembly; Filling the first through hole with a conductive filler, wherein the conductive filler is in contact with the metal layer; The panel back film assembly filled with the conductive filler is attached to the back of the display panel.

9. The method according to claim 8, characterized in that In the direction away from the metal layer, the step of forming the panel back film assembly includes the steps of sequentially forming a stacked heat dissipation layer and a protective layer, and forming at least one second through hole in the protective layer that passes through the protective layer, and the second through hole is connected to the first through hole, and the conductive filler fills the second through hole.

10. A display device, characterized in that: A display module comprising any one of claims 1-7.

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