Display module capable of preventing antenna interference and electronic equipment
By setting a notch in the ground wire section of the FPC module, the ground wire is divided into two parts, which solves the radiation interference problem caused by the ring ground wire in the display module, achieves better EMI protection, and improves the performance of the display module and electronic equipment.
Patent Information
- Application Number
- CN202520324892.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-02-26
AI Technical Summary
The existing FPC routing design of display modules is prone to forming a loop ground antenna, which leads to radiated interference and fails to meet the requirements for high anti-interference.
A notch is set in the ground wire section of the module FPC to divide the ground wire into two parts, which are electrically connected to the bonding trace through vias to avoid the formation of antenna radiation interference by the loop ground wire.
It effectively prevents EMI interference and improves the quality of display modules and electronic devices.
Smart Images

Figure CN223796785U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of display module technology, and in particular to a display module and electronic device that is resistant to antenna interference. Background Technology
[0002] In the display module industry, display units (such as LCD units and OLED units) are bonded to the module FPC, and then electrically connected to the main board of the entire device via the module FPC's connectors. The wiring design of the module FPC typically involves pulling the glass gold finger bonding end of the display unit through a bend to connect the traces of each identical network. Since the network positions are not adjacent, vias are needed to run to the bottom layer before connection, and then a ground wire is used to wrap around the connection to prevent signal interference from the glass end. However, this ground wire creates a ring-shaped ground, which is equivalent to an antenna and can cause radiated interference. Therefore, this structure cannot meet the requirements of some projects with high antenna anti-interference requirements.
[0003] Therefore, existing technologies have shortcomings and need to be improved. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a display module and electronic device that is protected against antenna interference.
[0005] The technical solution of this utility model is as follows: This utility model provides a display module for preventing antenna interference, including: a module FPC, a bonding end formed on the module FPC, a bonding trace formed on the upper layer of the bonding end, a ground wire portion formed on the module FPC near the bonding end, a notch formed in the middle of the ground wire portion, and the ground wire portions at both ends of the notch being electrically connected to the corresponding bonding traces through vias.
[0006] Furthermore, the display module also includes a liquid crystal module, and the bonding end of the module FPC is disposed in a single layer area of the liquid crystal glass of the liquid crystal module by bonding.
[0007] Furthermore, the display module also includes a backlight module, which is stacked on the lower layer of the liquid crystal module, and the backlight FPC of the backlight module is soldered to the backlight soldering area of the module FPC.
[0008] Alternatively, the display module may also include an OLED display module, wherein the bonding end of the module FPC is bonded to the OLED display module.
[0009] This utility model also provides an electronic device, including the above-mentioned anti-antenna interference display module, wherein the module FPC of the display module is electrically connected to the motherboard of the electronic device.
[0010] The beneficial effects of this utility model by adopting the above solution are as follows: by setting a notch in the ground wire part to divide the ground wire part into two parts, it can effectively avoid the formation of antenna radiation interference energy by the ring ground wire, which helps to prevent the display module from generating EMI interference problems and improves the quality of the display module and electronic equipment. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the wiring of a module FPC according to an embodiment of the present invention. Detailed Implementation
[0012] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
[0013] Please see Figure 1 In this embodiment, the present invention provides a display module for preventing antenna interference, comprising: a module FPC 1, wherein a bonding end 2 is formed on the module FPC 1, a bonding trace 3 is formed on the upper layer of the bonding end 2, and a ground wire portion 4 is formed on the module FPC 1 near the bonding end 2. A notch 5 is formed in the middle of the ground wire portion 4, and the ground wire portions 4 at both ends of the notch 5 are electrically connected to the corresponding bonding trace 3 through vias. This solution avoids the electromagnetic interference problem caused by the ring ground wire by dividing the ground wire portion 4 by setting a notch 5 in the middle of the ground wire portion 4.
[0014] Furthermore, the display module also includes a liquid crystal module and a backlight module. The bonding end 2 of the module FPC 1 is disposed in a single-layer area of the liquid crystal glass of the liquid crystal module by bonding. The backlight module is stacked on the lower layer of the liquid crystal module, and the backlight FPC of the backlight module is soldered to the backlight soldering area of the module FPC 1. At this time, the display module is a liquid crystal display module.
[0015] Alternatively, in other embodiments of this solution, the display module may also include an OLED display module, with the bonding end of the module FPC bonded to the OLED display module, in which case the display module is an OLED display module.
[0016] This solution also provides an electronic device including the aforementioned antenna interference-resistant display module, wherein the module FPC of the display module is electrically connected to the motherboard of the electronic device. The electronic device of this solution, employing the aforementioned display module, can achieve better EMI interference protection, avoid interference to the glass-end signal of the display module caused by the ring ground wire, and thus help improve display performance.
[0017] In summary, the beneficial effects of this solution are as follows: by setting a notch in the ground wire section to divide the ground wire section into two parts, it can effectively avoid the formation of antenna radiation interference energy by the loop ground wire, which helps to prevent EMI interference problems in the display module and improves the quality of the display module and electronic equipment.
[0018] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A display module with anti-antenna interference capability, characterized in that, include: The module FPC has a bonding terminal formed on it, a bonding trace formed on the upper layer of the bonding terminal, a ground wire portion formed near the bonding terminal, a notch formed in the middle of the ground wire portion, and the ground wire portions at both ends of the notch are electrically connected to the corresponding bonding traces through vias.
2. The display module for preventing antenna interference according to claim 1, characterized in that, It also includes a liquid crystal module, wherein the bonding end of the module FPC is set in a single layer area of the liquid crystal glass of the liquid crystal module by bonding.
3. The display module for preventing antenna interference according to claim 2, characterized in that, It also includes a backlight module, which is stacked on the lower layer of the liquid crystal module, and the backlight FPC of the backlight module is soldered to the backlight soldering area of the module FPC.
4. The display module for preventing antenna interference according to claim 1, characterized in that, It also includes an OLED display module, wherein the bonding end of the module FPC is bonded to the OLED display module.
5. An electronic device, characterized in that, The display module includes the antenna interference protection as described in any one of claims 1 to 4, wherein the module FPC of the display module is electrically connected to the motherboard of the electronic device.