Liquid crystal display module capable of preventing ESD static electricity and signal interference and electronic equipment
By using silver paste conductive patterns and conductive fabric layers in the liquid crystal display module, combined with the insulating layer and grounding terminal, the problem of electrostatic magnetic field interference around the ITO single-layer area is solved, and ESD static and signal interference is prevented, and the stability and reliability of the equipment are improved.
Patent Information
- Application Number
- CN202421531121.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-01
- Publication Date
- 2025-05-09
- Estimated Expiration
- 2034-07-01
AI Technical Summary
In the LCD display module, the electrostatic magnetic field around the single-layer area of the ITO will cause interference to the signal source of the entire machine, affecting normal communication and use.
The conductive pattern of silver paste is used for electrostatic release, and the conductive fabric layer is covered on the surface of the ITO single-layer area, the FPC binding area, the IC binding area and the FPC element area. The first insulating layer is arranged between the conductive fabric layer and these areas, and the conductive fabric layer is connected to the ground end of the FPC leakage copper area to shield the electromagnetic field interference.
The conductive pattern of silver paste is used to prevent ESD static electricity, avoid breakdown of the circuit, and at the same time, the conductive cloth layer is used to shield the electromagnetic field interference, improving the stability and reliability of the equipment.
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Figure CN222850843U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the field of display technology, and in particular relates to a liquid crystal display module and electronic equipment that are resistant to ESD static electricity and signal interference. Background Art
[0002] In liquid crystal display modules, the ITO single-layer area can usually achieve electrostatic discharge ESD by applying silver paste (so as to form a silver paste conductive pattern) to avoid circuit breakdown. However, the electrostatic magnetic field around the ITO single-layer area will still interfere with the signal source of the entire device, affecting normal communication use. Utility Model Content
[0003] The present application provides a liquid crystal display module and electronic equipment that are resistant to ESD static electricity and signal interference, and are used to solve the above technical problems.
[0004] In order to achieve the above application purpose, the technical solution adopted in this application is as follows:
[0005] The embodiment of the present application provides a liquid crystal display module that is resistant to ESD static electricity and signal interference, including:
[0006] Silver paste conductive pattern, used to discharge static electricity in the ITO single layer area;
[0007] The conductive fabric layer covers the surface of the ITO single layer area, the FPC binding area, the IC binding area, and the FPC component area. The conductive fabric layer does not cover the silver paste conductive pattern.
[0008] The first insulating layer is arranged between the surfaces of the FPC binding area, the IC binding area and the FPC component area and the conductive fabric layer;
[0009] The conductive fabric layer is also connected to the grounding terminal of the FPC copper leakage area.
[0010] In some embodiments, the liquid crystal display module for preventing ESD static electricity and signal interference further includes:
[0011] The graphene layer is arranged on the front side of the conductive fabric layer, and the coverage position of the graphene layer corresponds to the positions of the ITO single layer area, the FPC binding area, and the IC binding area.
[0012] In some embodiments, the liquid crystal display module for preventing ESD static electricity and signal interference further includes:
[0013] The second insulating layer is arranged on the front side of the graphene layer.
[0014] In some embodiments, the conductive fabric layer is connected to the ground terminal of the FPC copper leakage area through a conductive adhesive.
[0015] In some embodiments, the first insulating layer is an insulating tape.
[0016] An embodiment of the present application further provides an electronic device, comprising a liquid crystal display module for preventing ESD static electricity and signal interference provided by any of the above embodiments.
[0017] Compared with the prior art, the beneficial effects of the embodiments of the present application are:
[0018] The embodiments of the present application provide a liquid crystal display module and electronic device that can prevent ESD static electricity and signal interference. The silver paste conductive pattern can be used to prevent ESD static electricity to avoid line breakdown, and the conductive cloth layer can be used to shield the line signal interference caused by the static magnetic field around the ITO single layer area. This can improve the stability of testing and user performance, effectively improve the stability of extreme condition tests such as the reliability of the whole machine and module, win client recognition and accelerate production progress. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0020] Figure 1 A schematic diagram of the structure of a liquid crystal display module provided in an embodiment of the present application is shown;
[0021] Figure 2 Shows Figure 1 A magnified image of point A;
[0022] Figure 3 Shows Figure 1 A magnified view of point B;
[0023] Figure 4 A schematic diagram of the structure of a liquid crystal display module for preventing ESD static electricity and signal interference provided in an embodiment of the present application is shown;
[0024] Figure 5 A front schematic diagram of a composite material layer provided in an embodiment of the present application is shown;
[0025] Figure 6 A schematic diagram of the back side of the composite material layer provided in an embodiment of the present application is shown;
[0026] Figure 7 Shows Figure 5 CC section view;
[0027] Figure 8 Another cross-sectional view of a composite material layer is shown.
[0028] Illustration Description:
[0029] 10. ITO single-layer area; 11. FPC binding area; 12. IC binding area; 13. FPC component area; GND, FPC copper leakage area grounding terminal; 21. Silver paste conductive pattern; 30. Composite material layer; 31. Conductive cloth layer; 32. First insulating layer; 33. Graphene layer; 34. Second insulating layer. DETAILED DESCRIPTION
[0030] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.
[0031] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0033] In order to illustrate the technical solution described in this application, a specific embodiment is provided below for illustration.
[0034] See also Figures 1 to 8 As shown, the embodiment of the present application provides a liquid crystal display module that is resistant to ESD static electricity and signal interference, which is used to achieve ESD static electricity protection, avoid crosstalk of electrostatic magnetic fields, and avoid excessive IC temperature rise by adding a composite material layer 30.
[0035] Specifically, the liquid crystal display module for preventing ESD static electricity and signal interference includes an ITO single layer area 10, an FPC binding area 11, an IC binding area 12, and an FPC component area 13. As an example, the IC binding area 12 can be regarded as overlapping with the IC component area.
[0036] In the embodiment of the present application, the liquid crystal display module for preventing ESD static electricity and signal interference also includes:
[0037] The silver paste conductive pattern 21 is used to discharge static electricity from the ITO single layer area 10 to achieve ESD protection and avoid line breakdown.
[0038] The conductive cloth layer 31 covers the surface of the ITO single layer area 10, the FPC binding area 11, the IC binding area 12, and the FPC component area 13, and the conductive cloth layer 31 does not cover the silver paste conductive pattern 21. For example, there is a gap between the conductive cloth layer 31 and the silver paste conductive pattern 21. The conductive cloth layer 31 can shield the crosstalk of the electrostatic magnetic field.
[0039] The first insulating layer 32 is disposed between the surfaces of the FPC binding area 11, the IC binding area 12, and the FPC component area 13 and the conductive fabric layer 31. In other words, the conductive fabric layer 31 is isolated from the surfaces of the FPC binding area 11, the IC binding area 12, and the FPC component area 13 by the first insulating layer 32. For example, the first insulating layer 32 is an insulating tape.
[0040] The conductive fabric layer 31 is also connected to the ground terminal GND of the FPC copper leakage area, so that the excess static electricity around and on the surface can be released through the ground terminal GND of the FPC copper leakage area. As an example, the conductive fabric layer 31 is connected to the ground terminal GND of the FPC copper leakage area through a conductive adhesive.
[0041] The above-mentioned liquid crystal display module with ESD protection and signal interference protection can achieve ESD protection through the silver paste conductive pattern 21 to avoid line breakdown, and can also shield the line signal interference caused by the electrostatic magnetic field around the ITO single layer area 10 through the conductive cloth layer 31.
[0042] In some embodiments of the present application, the conductive fabric layer 31 cannot extend beyond the edge of the panel, cannot extend beyond the lower edge of the TFT, and the distance of the conductive fabric layer 31 extending beyond the TFT is less than 0.8 mm.
[0043] In some embodiments of the present application, the liquid crystal display module for preventing ESD static electricity and signal interference further includes:
[0044] The graphene layer 33 is arranged on the front side of the conductive fabric layer 31, and the coverage position of the graphene layer 33 corresponds to the positions of the ITO single layer area 10, the FPC binding area 11, and the IC binding area 12. The graphene layer 33 can improve the heat dissipation performance and prevent the IC temperature from rising too high. As an example, the graphene layer 33 is provided with an edge glue, which is used to wrap the edge of the graphene heat dissipation substrate to ensure the flatness and cleanliness of the edge and enhance the structural stability of the substrate.
[0045] In some embodiments of the present application, the liquid crystal display module for preventing ESD static electricity and signal interference further includes: a second insulating layer 34 disposed on the front side of the graphene layer 33 .
[0046] In some embodiments of the present application, an electronic device is further provided, comprising a liquid crystal display module for preventing ESD static electricity and signal interference provided by any of the above embodiments.
[0047] In summary, the embodiments of the present application provide a liquid crystal display module and electronic device that is resistant to ESD static electricity and signal interference, which can solve the problems of signal interference, ESD circuit breakdown, and excessive IC temperature rise through the composite material layer 30 .
[0048] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.
Claims
1. A liquid crystal display module for preventing ESD static electricity and signal interference, comprising: Silver paste conductive pattern, used to discharge static electricity in the ITO single layer area; A conductive cloth layer covers the surface of the ITO single layer area, the FPC binding area, the IC binding area, and the FPC component area, and the conductive cloth layer does not cover the silver paste conductive pattern; A first insulating layer is provided between the surfaces of the FPC binding area, the IC binding area and the FPC component area and the conductive cloth layer; Wherein, the conductive cloth layer is also connected to the grounding terminal of the FPC copper leakage area.
2. The liquid crystal display module for preventing ESD static electricity and signal interference according to claim 1, characterized in that: The liquid crystal display module for preventing ESD static electricity and signal interference also includes: The graphene layer is arranged on the front side of the conductive cloth layer, and the covering position of the graphene layer corresponds to the positions of the ITO single layer area, the FPC binding area, and the IC binding area.
3. The liquid crystal display module for preventing ESD static electricity and signal interference according to claim 2, characterized in that: The liquid crystal display module for preventing ESD static electricity and signal interference also includes: The second insulating layer is arranged on the front side of the graphene layer.
4. The liquid crystal display module for preventing ESD static electricity and signal interference according to any one of claims 1 to 3, characterized in that: The conductive cloth layer is connected to the grounding end of the FPC copper leakage area through a conductive adhesive.
5. The liquid crystal display module for preventing ESD static electricity and signal interference according to any one of claims 1 to 3, characterized in that: The first insulating layer is an insulating tape.
6. An electronic device, characterized in that: A liquid crystal display module for preventing ESD static electricity and signal interference comprising the liquid crystal display module according to any one of claims 1 to 5.