Device for improving ESD (Electro-Static Discharge) capability of display module
By opening windows in a single-layer area of the FPC and attaching copper foil, the problem of ineffective ESD discharge was solved, enabling rapid ESD evacuation and enhancing the ESD capability of the display module.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-10
- Publication Date
- 2026-03-03
AI Technical Summary
In the ESD experiment, ESD could not be effectively evacuated from the FPC single-layer area, which affected the product's functionality and slowed down the ESD evacuation speed.
A window is made in the middle of the un-traceable area of the FPC single-layer region, and copper foil is attached to the IC insulating adhesive. The copper foil is extended outward and connected to the backlight iron frame. The lower surface of the copper foil is grounded, the upper surface is insulated, and one side is recessed by 0.3mm.
It improves the efficiency of ESD export, enhances ESD functionality, and increases the speed of ESD evacuation.
Smart Images
Figure CN223968028U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ESD technology for display modules, and in particular to a device for improving the ESD capability of display modules. Background Technology
[0002] During the ESD test, when ESD reached the single-layer area of the FPC, it could not be discharged, thus affecting the product's functionality; the copper foil was not extended outward and was not attached to the backlight frame, resulting in slow ESD dissipation. Utility Model Content
[0003] The purpose of this invention is to solve the technical problems existing in the prior art and to provide a device for improving the ESD capability of display modules.
[0004] To achieve the above objectives, the technical solution provided by this utility model is: a device for improving the ESD capability of a display module, characterized in that: it includes a backlight iron frame and an FPC of the display module, the unwired part in the middle of the single-layer area of the FPC is opened, and copper foil is attached to the single-layer area of the FPC by IC insulating adhesive, and the copper foil extends outward.
[0005] Preferably, the copper foil completely covers the IC insulating adhesive when it is applied, but the copper foil does not cover the polarizer.
[0006] Preferably, the copper foil thickness is 0.010 mm and the IC insulating adhesive thickness is 0.02 mm.
[0007] Preferably, after the outward-expanding copper foil is folded back, the copper foil is attached to the single-layer area of the FPC and connected to the backlight iron frame through holes.
[0008] Preferably, the lower surface of the copper foil and the exposed copper area of the FPC of the display module are grounded, and the upper surface of the copper foil is insulated, with the copper foil being recessed by 0.3mm on one side.
[0009] The beneficial effects of this utility model are:
[0010] When ESD occurs during an ESD experiment, this invention can promptly remove the ESD when it reaches the single-layer area of the FPC, and the copper foil expands outward and attaches to the backlight iron frame, thus enabling rapid ESD dissipation. Attached Figure Description
[0011] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.
[0012] Figure 1 This utility model is a schematic diagram of a window opening in a single-layer area of an FPC.
[0013] Figure 2 This is a schematic diagram of the copper foil expansion of this utility model. Detailed Implementation
[0014] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0015] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 utility model.
[0016] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.
[0017] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0018] Referring to the preferred embodiment of the present invention, a device for improving the ESD capability of a display module includes a backlight frame and an FPC of the display module. A window is made in the middle of the unwired area of the single-layer region of the FPC. Copper foil is attached to the single-layer region of the FPC by IC insulating adhesive, and the copper foil is extended outward. After the extended copper foil is folded back, it is attached to the single-layer region of the FPC and connected to the backlight frame through a hole.
[0019] Specifically, the copper foil completely covers the IC insulating adhesive when it is applied, but the copper foil does not cover the polarizer. The thickness of the copper foil is 0.010mm, and the thickness of the IC insulating adhesive is 0.02mm.
[0020] When ESD occurs during an ESD experiment, this invention can promptly remove the ESD when it reaches the single-layer area of the FPC, and the copper foil expands outward and attaches to the backlight iron frame, thus enabling rapid ESD dissipation.
[0021] The copper foil underside and the exposed copper area of the FPC in the display module are grounded, and the copper foil top surface is insulated. The copper foil is 0.3mm inward on one side, which can directly eliminate ESD and enhance ESD protection.
[0022] Without causing conflict, those skilled in the art can freely combine and use the above-mentioned additional technical features.
[0023] The above description is only a preferred embodiment of the present utility model. Any technical solution that achieves the purpose of the present utility model by essentially the same means shall fall within the protection scope of the present utility model.
Claims
1. A device for improving the ESD capability of a display module, characterized in that: The FPC includes a backlight iron frame and a display module, a window is opened in a part of a single layer area of the FPC which is not wired, a copper foil is attached on the single layer area of the FPC through IC insulating glue, and the copper foil is expanded outward.
2. The device for improving ESD capability of a display module according to claim 1, wherein: The copper foil completely covers the IC insulating glue when being attached, but the copper foil does not cover the polarizer.
3. The device for improving ESD capability of a display module according to claim 2, wherein: The thickness of the copper foil is 0.010 mm, and the thickness of the IC insulating glue is 0.02 mm.
4. The device for improving ESD capability of a display module according to claim 1, wherein: After being folded back, the expanded copper foil is attached on the single layer area of the FPC and connected with the backlight iron frame through the hole.
5. The device for improving ESD capability of a display module according to claim 1, wherein: The lower surface of the copper foil is grounded with a copper leakage area of the FPC of the display module, and the upper surface of the copper foil is insulated, and the copper foil is inwardly retracted by 0.3 mm on one side.