Cover plate and display module

Abstract

The application discloses a cover plate and a display module. The cover plate comprises a window area and a frame area arranged at the periphery of the window area. The cover plate further comprises a cover plate body arranged in the window area and the frame area, an electrostatic protection element arranged on one side of the cover plate body and located in the frame area, and a light shielding layer arranged on the side of the electrostatic protection element away from the cover plate body. The orthographic projection of the light shielding layer on the cover plate body covers part of the orthographic projection of the electrostatic protection element on the cover plate body. Part of the electrostatic protection element is exposed from the light shielding layer to serve as an electrostatic discharge part of the electrostatic protection element. The cover plate of the application comprises the electrostatic protection element, and the electrostatic protection element is arranged in the frame area. Therefore, the anti-static capability of the display module can be improved while the display function is ensured. In addition, part of the electrostatic protection element is covered by the light shielding layer, so that the light shielding layer can protect the electrostatic protection element while shielding light.

Description

Technical Field

[0001] This application belongs to the field of display technology, specifically relating to a cover plate and a display module. Background Technology

[0002] In recent years, with the development and widespread adoption of display technology, display modules have been applied to various electronic devices, such as mobile phones, tablets, or other portable electronic devices.

[0003] However, the inventors of this application have found that the product quality of the current display module needs further improvement. Summary of the Invention

[0004] This application provides a cover plate and a display module that can improve the antistatic capability of the cover plate.

[0005] To solve the above-mentioned technical problems, one technical solution adopted in this application is: providing a cover plate, the cover plate including a viewing area and a border area disposed around the viewing area, and the cover plate further including:

[0006] The cover plate body is located in the viewing window area and the border area;

[0007] An electrostatic protection component is disposed on one side of the cover plate body and located in the frame area;

[0008] A light-shielding layer is disposed on the side of the electrostatic protective component facing away from the cover plate body, wherein the orthographic projection of the light-shielding layer on the cover plate body covers a portion of the orthographic projection of the electrostatic protective component on the cover plate body, while a portion of the electrostatic protective component is exposed from the light-shielding layer to serve as an electrostatic discharge portion of the electrostatic protective component.

[0009] According to one embodiment of this application, the surface of the cover plate body is provided with a groove located in the frame area, and the electrostatic protection component is disposed in the groove;

[0010] Preferably, the thickness of the electrostatic protective component is greater than or equal to the depth of the groove;

[0011] Preferably, the thickness of the cover plate body is in the range of 600-700 μm, and the depth of the groove does not exceed 30 μm.

[0012] According to one embodiment of this application, the electrostatic protective component and the light-shielding layer are both disposed around the display area;

[0013] Preferably, the material of the light-shielding layer includes ink.

[0014] According to one embodiment of this application, an anti-oxidation layer is formed on the surface of the electrostatic discharge part, and the material of the anti-oxidation layer includes a conductive material;

[0015] Preferably, the material of the anti-oxidation layer includes nickel-gold.

[0016] According to one embodiment of this application, the material of the electrostatic protection component includes at least one of indium tin oxide, titanium, aluminum, and copper;

[0017] Preferably, the material of the electrostatic discharge section includes indium tin oxide, or the electrostatic discharge section includes a titanium layer, an aluminum layer and a titanium layer stacked sequentially, or the material of the electrostatic discharge section includes copper foil.

[0018] According to one embodiment of this application, the border area includes a first sub-area and a second sub-area located on the upper and lower sides of the window area, and a third sub-area and a fourth sub-area located on the left and right sides of the window area, wherein the electrostatic discharge part is located in the fourth sub-area;

[0019] Preferably, the number of the electrostatic discharge section is multiple;

[0020] Preferably, there are two electrostatic discharge sections, which are spaced apart in the fourth sub-region.

[0021] To solve the above-mentioned technical problems, another technical solution adopted in this application is: to provide a display module, including a screen body and a cover plate as described in any of the above, wherein the cover plate is disposed on the light-emitting surface side of the screen body.

[0022] According to one embodiment of this application, the screen body includes a display portion, a bonding portion, and a bent portion connecting the display portion and the bonding portion, which are arranged opposite to and spaced apart from each other. The display module further includes a composite tape disposed between the display portion and the bonding portion. The composite tape includes a first adhesive layer and a first conductive layer stacked together, wherein the first conductive layer is grounded, and the static discharge portion is electrically connected to the first conductive layer.

[0023] According to one embodiment of this application, the orthographic projection of the first conductive layer on the first adhesive layer covers and extends beyond the first adhesive layer, so that the first conductive layer is directly electrically connected to the electrostatic discharge portion.

[0024] According to one embodiment of this application, the display module further includes:

[0025] A flexible circuit board, one end of which is bonded to the bonding portion and the other end of which extends to the side of the composite tape away from the display portion, wherein the flexible circuit board is provided with a first grounding point electrically connected to the first conductive layer in the composite tape;

[0026] An insulating tape is disposed on the side of the flexible circuit board away from the composite tape. The insulating tape includes a second conductive layer, which is electrically connected to the first grounding point on the flexible circuit board and the electrostatic discharge part.

[0027] The beneficial effects of this application are as follows: This application sets the cover plate to include an electrostatic protection component, and the electrostatic protection component is located in the frame area. Thus, while releasing the static electricity on the cover plate through the electrostatic protection component, it can also ensure the normal display of the display module. In this way, the anti-static capability of the display module can be improved while ensuring the display function. In addition, this application also sets a light-shielding layer to cover part of the electrostatic protection component, so that the light-shielding layer can also protect the electrostatic protection component while blocking light. Attached Figure Description

[0028] 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, wherein:

[0029] Figure 1 This is a schematic diagram of one embodiment of the display module shown in this application;

[0030] Figure 2 yes Figure 1 A bottom view of the structure of the middle cover plate;

[0031] Figure 3 This is one implementation method Figure 2 A schematic diagram of the cross-sectional structure along section line AA;

[0032] Figure 4 yes Figure 1 Schematic diagram of the fabrication process of the middle cover plate;

[0033] Figure 5 Another implementation method Figure 2 A schematic diagram of the cross-sectional structure along section line AA;

[0034] Figure 6 This application shows a schematic diagram of another embodiment of the display module.

[0035] Figure 7 yes Figure 6 A schematic diagram of the structure of composite tape. Detailed Implementation

[0036] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, it should be noted that, for ease of description, only the parts relevant to this application are shown in the accompanying drawings, not the entire structure. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.

[0037] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0038] 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0039] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0040] See Figure 1This application provides a display module 20 in one embodiment. The display module 20 includes a screen 21 and a cover plate 10. The cover plate 10 is disposed on one side of the light-emitting surface of the screen 21, and the cover plate 10 can provide a certain degree of protection for the screen 21. The screen 21 is used to display images, and it may specifically include a substrate, an array layer, and a light-emitting device layer stacked sequentially. The screen 21 may specifically be an OLED (Organic Light-Emitting Diode) screen, an LCD (Liquid Crystal Display) screen, or a Micro-LED screen, etc. This application does not limit the specific structure of the screen 21. The screen 21 includes a display area and a non-display area. The display area is used to display images and typically includes pixel driving circuits, light-emitting devices, etc. The non-display area does not display images and typically includes peripheral circuitry, etc.

[0041] See Figure 2 The cover plate 10 includes a viewing area AA and a border area NA disposed around the viewing area AA. The viewing area AA corresponds to the display area of ​​the screen 21, and the border area NA corresponds to the non-display area of ​​the screen 21.

[0042] Further, please refer to Figure 2 and Figure 3 The cover plate 10 also includes a cover plate body 11, an electrostatic discharge (ESD) protective element 12, and a light-shielding layer 13. The cover plate body 11 is located in the viewing area AA and the border area NA, serving as the main structure and providing primary support. The ESD protective element 12 is located on one side of the cover plate body 11 and in the border area NA, ensuring it does not affect the normal display function of the display module 20. The ESD protective element 12 is made of conductive material and is used to discharge static electricity from the cover plate body 11. The light-shielding layer 13 is located on the side of the ESD protective element 12 away from the cover plate body 11 and in the border area NA. The light-shielding layer 13 is used to shield the peripheral circuitry and other structures within the screen 21. The orthographic projection of the light-shielding layer 13 on the cover plate body 11 covers part of the orthographic projection of the electrostatic protection component 12 on the cover plate body 11. At the same time, part of the electrostatic protection component 12 is exposed from the light-shielding layer 13 to serve as the electrostatic discharge part 121 of the electrostatic protection component 12. That is, part of the electrostatic protection component 12 is blocked by the light-shielding layer 13, and part is not blocked by the light-shielding layer 13. The part of the electrostatic protection component 12 not blocked by the light-shielding layer 13 serves as the electrostatic discharge part 121 and is electrically connected to the grounding point in the display module 20. Thus, the static electricity on the electrostatic protection component 12 enters the grounding point through the electrostatic discharge part 121, thereby releasing the static electricity in the cover plate 10.

[0043] In existing technologies, when copper rod friction or electrostatic discharge (ESD) tests are performed on the display module 20, the static electricity is not discharged or eliminated in time. This often results in the display module 20 exhibiting bright green edges, gradually turning green on the front, ultimately causing defects such as ghosting, bright spots, and screen flickering, affecting product quality. However, in this application, an electrostatic protection component 12 is provided on one side of the cover plate body 11 within the frame area NA. Part of the electrostatic protection component 12 is exposed from the light-shielding layer 13 to serve as an electrostatic discharge section 121. This electrostatic discharge section 121 can be connected to the grounding point (GND), allowing static electricity in the cover plate 10 to quickly accumulate on the electrostatic protection component 12 and reach the grounding point via the electrostatic discharge section 121, ultimately being directly discharged through the grounding point. Therefore, the solution of this application effectively solves the static electricity problem of the display module 20, preventing abnormal phenomena such as green screen and screen distortion in the screen 21 of the display module 20.

[0044] Furthermore, this application also provides a light-shielding layer 13 covering part of the electrostatic protection component 12, so that the light-shielding layer 13 can protect the electrostatic protection component 12 while shielding light.

[0045] In one embodiment, see Figure 4 In the preparation process, an electrostatic protective element 12 is first formed on the cover plate body 11, and then a light-shielding layer 13 is formed on the side of the electrostatic protective element 12 away from the cover plate body 11. Finally, the light-shielding layer 13 is patterned to expose part of the electrostatic protective element 12 as an electrostatic release part 121.

[0046] See Figure 5 In one embodiment of this application, the surface of the cover plate body 11 is provided with a groove 111 located in the border area NA, and the electrostatic protection member 12 is disposed in the groove 111, which makes the surface of the cover plate 10 flatter. In this case, during the manufacturing process, a groove 111 is first formed by slotting the cover plate body 11, then the electrostatic protection member 12 is formed in the groove 111, then a light-shielding layer 13 is formed, and finally the light-shielding layer 13 is patterned to expose a portion of the electrostatic protection member 12 as an electrostatic discharge part 121.

[0047] It should be noted that in other embodiments, the surface of the cover plate body 11 may not have the groove 111, for example, see [reference needed]. Figure 3 The electrostatic protection component 12 is directly set on the surface of the cover plate body 11. This simplifies the manufacturing process and avoids damaging the strength of the cover plate body 11 during the grooving process.

[0048] In one embodiment, see Figure 5 The thickness of the electrostatic protective component 12 is greater than or equal to the depth of the groove 111. Figure 5(Illustrated schematically, the thickness of the electrostatic protection component 12 is equal to the depth of the groove 111, which facilitates the subsequent electrical connection of the electrostatic discharge part 121 on the electrostatic protection component 12 to the grounding point. Of course, in other embodiments, the thickness of the electrostatic protection component 12 may be less than the depth of the groove 111.)

[0049] In one embodiment, the thickness of the cover plate body 11 ranges from 600µm to 700µm, for example, 600µm, 650µm, 680µm, or 700µm. When the thickness of the cover plate body 11 is less than 600µm, the cover plate body 11 is thinner, and its strength will be correspondingly weakened. When the thickness of the cover plate body 11 is greater than 700µm, the thickness of the display module 20 will increase, which is not conducive to the development of thinner and lighter designs. Therefore, setting the thickness of the cover plate body 11 to a range of 600µm-700µm ensures both strength and helps to reduce the thickness of the display module 20.

[0050] In one embodiment, in order to avoid the groove 111 affecting the strength of the cover plate body 11, the depth of the groove 111 is set to not exceed 30 μm, that is, the depth of the groove 111 is less than or equal to 30 μm, for example, the depth of the groove 111 is 20 μm, 25 μm or 30 μm, etc.

[0051] It should be noted that this application does not impose specific limitations on the thickness of the cover plate body 11 or the depth of the groove 111; these can be set according to actual needs.

[0052] See Figure 4 In one embodiment, both the electrostatic protective component 12 and the light-shielding layer 13 are arranged around the viewing window area AA. At this time, the electrostatic protective component 12 and the light-shielding layer 13 are fully enclosed structures. The electrostatic protective component 12 can effectively release the static electricity at various positions in the cover plate 10 and improve the electrostatic protection capability of the cover plate 10.

[0053] It should be noted that in other embodiments, the electrostatic protective component 12 and the light-shielding layer 13 are also disposed at a local position in the frame area NA. In this case, the electrostatic protective component 12 and the light-shielding layer 13 form a semi-enclosed structure, such as any side edge of the frame area NA or any bottom edge of the frame area NA. There is no limitation here, and the specific location can be selected according to the needs. Alternatively, in other embodiments, the light-shielding layer 13 can be disposed around the window area AA, while the electrostatic protective component 12 is disposed only around a portion of the window area AA. That is, the light-shielding layer 13 has a fully enclosed structure, while the electrostatic protective component 12 has a semi-enclosed structure.

[0054] In one embodiment, considering that ink is a common light-shielding material with low cost and good light-shielding effect, the material for providing the light-shielding layer 13 includes ink.

[0055] In another embodiment of this application, an anti-oxidation layer (not shown) is formed on the surface of the electrostatic discharge section 121, wherein the material of the anti-oxidation layer includes a conductive material. Specifically, the conductive material anti-oxidation layer can prevent the electrostatic discharge section 121 from oxidizing, thus ensuring the electrostatic discharge capability.

[0056] In one embodiment, considering that nickel-gold has good oxidation resistance, corrosion resistance, and wear resistance, and that nickel-gold is also relatively inexpensive, nickel-gold is included as the material for the anti-oxidation layer. In this case, during the preparation process, an electroplating process can be used to form nickel-gold on the surface of the static discharge section 121 to obtain the anti-oxidation layer.

[0057] Alternatively, in some other embodiments, the anti-oxidation layer may also include zinc, chromium, titanium, tungsten carbide, etc., which will not be described in detail here.

[0058] In another embodiment of this application, the material of the electrostatic discharge protection component 12 includes at least one of indium tin oxide (ITO), titanium, aluminum, and copper. Indium tin oxide, titanium, aluminum, and copper often have high conductivity. Therefore, using any one of these materials or a combination of these materials as the material of the electrostatic discharge protection component 12 can effectively improve the electrostatic discharge performance of the electrostatic discharge protection component 12, thereby indirectly improving the yield of the display module 20.

[0059] For example, in one application scenario, the material of the electrostatic discharge protection component 12 includes indium tin oxide (ITO). Indium tin oxide not only has good conductivity, but also has high carrier mobility and low carrier concentration. Therefore, using indium tin oxide to prepare the electrostatic discharge protection component 12 can enable the electrostatic discharge protection component 12 to have better electrostatic discharge performance, thereby indirectly improving the yield of the display module 20.

[0060] In another application scenario, the material of the electrostatic protection component 12 includes a titanium layer, an aluminum layer, and another titanium layer stacked in sequence. This arrangement can reduce the transmission impedance of the electrostatic protection component 12 and ensure its electrostatic discharge capability.

[0061] In another application scenario, the material of the electrostatic protection component 12 includes copper foil. Copper foil itself has the advantages of good electromagnetic shielding and antistatic properties, and its price is low. Therefore, when the material of the electrostatic protection component 12 is copper foil, not only can the antistatic effect of the electrostatic protection component 12 be improved, but the production cost of the cover plate 10 can also be reduced, thereby reducing the production cost of the display module 20.

[0062] Please see Figure 2In another embodiment of this application, the border area NA includes a first sub-area 112 and a second sub-area 113 located on the upper and lower sides of the window area AA, and a third sub-area 114 and a fourth sub-area 115 located on the left and right sides of the window area AA. The electrostatic discharge unit 121 is located in the second sub-area 113. Specifically, the first sub-area 112 is the upper border area, the second sub-area 113 is the lower border area, the third sub-area 114 is the left border area, and the fourth sub-area 115 is the right border area. Typically, the lower border area is the widest; therefore, placing the electrostatic discharge unit 121 in the second sub-area 113 facilitates electrical connection between the electrostatic discharge unit 121 and the grounding point.

[0063] However, in other embodiments, the static discharge section 121 may also be located in other areas of the border area NA besides the second sub-region 113, such as in the first sub-region 112, the third sub-region 114, or the fourth sub-region 115.

[0064] In one embodiment, the number of electrostatic discharge sections 121 is multiple, which can increase the speed at which static electricity on the electrostatic protection component 12 is discharged to the grounding point, further improving the antistatic capability of the cover plate 10. (See also...) Figure 2 In one embodiment, there are two electrostatic discharge units 121, and the two electrostatic discharge units 121 are arranged at intervals in the second sub-region 113. In other embodiments, the number of electrostatic discharge units 121 may be three, four or even more, and there is no limitation here.

[0065] Please see Figure 6 In one embodiment, the screen 21 includes a display portion 211, a bonding portion 212 and a bending portion 213 that are arranged at relatively intervals between the display portion 211 and the bonding portion 212. The display module 20 also includes a composite tape 22, which is disposed between the display portion 211 and the bonding portion 212.

[0066] Specifically, the display section 211 is used to display the image, and the bonding section 212 is used to bond components such as the flexible circuit board 23 and the chip 25. Placing the bonding section 212 on the back of the display section 211 is beneficial for achieving a narrow bezel in the display module 20. The composite tape 22 is placed between the display section 211 and the bonding section 212 to protect the screen 21 and dissipate heat.

[0067] See Figure 7In one embodiment, the composite tape 22 includes a first adhesive layer 221 and a first conductive layer 222 stacked together. The first adhesive layer 221 is used to adhere the composite tape 22 to the screen 21, and the first conductive layer 222 serves to shield signals and transmit static electricity. The composite tape 22 also includes a first buffer layer 223 located between the first adhesive layer 221 and the first conductive layer 222, which serves a buffering function. In a specific example, the first adhesive layer 221 includes a mesh adhesive, the first conductive layer 222 includes copper foil, and the first buffer layer 223 includes foam.

[0068] In one embodiment, the first conductive layer 222 is grounded, and the electrostatic discharge part 121 is electrically connected to the first conductive layer 222, so that the static electricity on the electrostatic protection component 12 is discharged through the first conductive layer 222.

[0069] In one application scenario, the electrostatic discharge unit 121 is directly electrically connected to the first conductive layer 222. In order to achieve the direct electrical connection between the electrostatic discharge unit 121 and the first conductive layer 222, the orthographic projection of the first conductive layer 222 on the first adhesive layer 221 covers and extends beyond the first adhesive layer 221. That is, the first conductive layer 222 is extended so that the first conductive layer 222 is directly electrically connected to the electrostatic discharge unit 121.

[0070] Continue reading Figure 6 In another application scenario, the static discharge unit 121 is indirectly electrically connected to the first conductive layer 222 via insulating tape 24 and flexible circuit board 23.

[0071] Specifically, the insulating tape 24 is disposed on the side of the flexible circuit board 23 away from the composite tape 22. During high-frequency transmission, it serves to shield or isolate electromagnetic waves and radio waves from interference. The insulating tape 24 includes a second conductive layer (not shown). The second conductive layer is electrically connected to the first grounding point on the flexible circuit board 23. The first grounding point on the flexible circuit board 23 (not shown) is electrically connected to the first conductive layer 222 in the composite tape 22. Therefore, the static discharge part 121 is provided and electrically connected to the second conductive layer in the insulating tape 24. Thus, the static electricity on the static protection component 12 is first transferred to the second conductive layer in the insulating tape 24, then to the flexible circuit board 23, and finally to the first conductive layer 222 in the composite tape 22, where it is finally discharged.

[0072] Both of the above methods can discharge static electricity on the electrostatic protection component 12, which can effectively prevent abnormal phenomena such as green screen or distorted screen from appearing on the screen 21 and improve the display effect of the screen 21.

[0073] It should be noted that the terms "horizontal" and "vertical" do not imply that the components must be absolutely horizontal or vertical, but rather that they can be slightly tilted. Similarly, the terms "parallel" and "perpendicular" do not imply that the components are absolutely parallel or perpendicular, but rather that they can have a certain angular deviation. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted. In addition, the orientations or positional relationships indicated by terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise" are based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships that are commonly used when the product of this application is in use. They are only for the purpose of describing the embodiments of 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. Therefore, they should not be construed as limitations on this application.

[0074] It is understood that the term "multiple" in this document means at least two, such as two, three, etc., unless otherwise specified. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices. The term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects are in an "or" relationship.

[0075] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A display module, characterized in that, It includes a screen body and a cover plate, wherein the cover plate is disposed on one side of the light-emitting surface of the screen body; The cover plate includes a viewing window area and a border area disposed around the viewing window area. The cover plate also includes a cover plate body located in the viewing window area and the border area. An electrostatic protection component is disposed on one side of the cover plate body and located in the frame area; A light-shielding layer is disposed on the side of the electrostatic protective component facing away from the cover plate body and located in the frame area. The orthographic projection of the light-shielding layer on the cover plate body covers a portion of the orthographic projection of the electrostatic protective component on the cover plate body. At the same time, a portion of the electrostatic protective component is exposed from the light-shielding layer to serve as an electrostatic discharge part of the electrostatic protective component. The electrostatic discharge part is used for electrical connection with the grounding point in the display module. Both the electrostatic protective component and the light-shielding layer are disposed around the viewing window area, and both the electrostatic protective component and the light-shielding layer are fully enclosed structures. The surface of the cover plate body is provided with a groove located in the frame area, and the electrostatic protection component is disposed in the groove, which is a blind groove. The border area includes a first sub-area and a second sub-area located on the upper and lower sides of the window area, and a third sub-area and a fourth sub-area located on the left and right sides of the window area, wherein the electrostatic discharge part is located in the second sub-area; The screen includes a display section, a bonding section, and a bent section connecting the display section and the bonding section, which are arranged opposite to each other and spaced apart. The display module also includes a composite tape, which is disposed between the display section and the bonding section. The composite tape includes a first adhesive layer and a first conductive layer stacked together, wherein the first conductive layer is grounded and the electrostatic discharge section is electrically connected to the first conductive layer.

2. The display module according to claim 1, characterized in that, The thickness of the electrostatic protective component is greater than or equal to the depth of the groove.

3. The display module according to claim 2, characterized in that... The thickness of the cover plate body is in the range of 600-700um, and the depth of the groove does not exceed 30um.

4. The display module according to claim 1, characterized in that, The material of the light-shielding layer includes ink.

5. The display module according to claim 1, characterized in that, An anti-oxidation layer is formed on the surface of the electrostatic discharge part, and the material of the anti-oxidation layer includes a conductive material.

6. The display module according to claim 5, characterized in that, The material of the anti-oxidation layer includes nickel-gold.

7. The display module according to claim 1, characterized in that, The material of the electrostatic protection component includes at least one of indium tin oxide, titanium, aluminum, and copper.

8. The display module according to claim 7, characterized in that, The material of the electrostatic discharge section includes indium tin oxide, or the electrostatic discharge section includes a titanium layer, an aluminum layer and a titanium layer stacked in sequence, or the material of the electrostatic discharge section includes copper foil.

9. The display module according to claim 1, characterized in that, The number of electrostatic discharge sections is multiple.

10. The display module according to claim 1, characterized in that, The number of electrostatic discharge sections is two, and the two electrostatic discharge sections are arranged at intervals in the second sub-region.

11. The display module according to claim 1, characterized in that, The orthographic projection of the first conductive layer onto the first adhesive layer covers and extends beyond the first adhesive layer, so that the first conductive layer is directly electrically connected to the electrostatic discharge part.

12. The display module according to claim 1, characterized in that, The display module further includes: a flexible circuit board, one end of which is bonded to the bonding portion and the other end of which extends to the side of the composite tape away from the display portion, wherein the flexible circuit board is provided with a first grounding point electrically connected to the first conductive layer in the composite tape; An insulating tape is disposed on the side of the flexible circuit board away from the composite tape. The insulating tape includes a second conductive layer, which is electrically connected to the first grounding point on the flexible circuit board and the electrostatic discharge part.

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