A connecting piece of FPC and glass LCD
By designing the FPC as an L-shaped structure and using conductive adhesive for pressing and conductive metal pins for connection, the tearing problem when connecting the FPC to the glass electrode was solved, achieving stable electrical and physical connections and improving the overall structural stability and durability of the LCD module.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIYA LANGFANG ELECTRONICS CO LTD
- Filing Date
- 2025-08-01
- Publication Date
- 2026-07-14
AI Technical Summary
In the prior art, when the FPC is connected to the glass electrode, the root of the FPC is easily torn during the bending process, which affects the normal use of the liquid crystal display module.
The FPC is designed with an L-shaped structure, with the electrode crimping area and bending area spatially separated. When bending, the tensile force is only applied to the bending area. Conductive adhesive is used for crimping and metal pins for conductive connection to ensure electrical connection stability.
This effectively avoids tearing at the connection between the FPC and the glass electrode, improving the stability and durability of the connection and meeting the long-term use requirements of the LCD module.
Smart Images
Figure CN224502492U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of liquid crystal display technology, specifically to a connector between an FPC and a glass LCD. Background Technology
[0002] In the field of liquid crystal displays, it is common to encounter situations where FPCs and glass electrodes are connected. After the two are connected, they form a liquid crystal display module. Under normal circumstances, the FPC electrodes extend directly outward. When the FPC is connected to the motherboard, it is often necessary to bend the FPC to the back of the display screen.
[0003] When the glass has multiple functions and electrodes need to be placed on both sides of the single glass panel, meaning the FPC and glass need to be connected on both sides, the existing technology usually uses the method of directly extending the FPC outward. However, in this case, when the FPC is bent for use, the root of the FPC on one side will be stretched, which can easily cause tearing at the point where the FPC and glass electrodes are pressed together, affecting the normal use of the liquid crystal display module. Therefore, this device provides a connector between the FPC and the glass LCD. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a connector between an FPC and a glass LCD, thereby solving the aforementioned technical problems.
[0005] The present invention adopts the following technical solution: it includes a glass body and a first FPC and a second FPC respectively pressed onto both sides of the glass body. The second FPC is an L-shaped structure and the L-shaped structure includes a first extension section and a second extension section that are perpendicular to each other. The end of the first extension section away from the second extension section forms an electrode pressing area connected to the corresponding side electrode of the glass body. The second extension section forms a bending area for bending operation. The electrode pressing area and the bending area are spatially separated. The first FPC is a straight extension structure, with one end forming a first pressing part connected to the corresponding side electrode of the glass body, and the other end extending straight away from the glass body to form a first extension part.
[0006] Furthermore, the electrode pressing area is fixed to the side electrode of the glass body by conductive adhesive, and the length of the electrode pressing area is adapted to the length of the corresponding side electrode of the glass body.
[0007] Furthermore, the length of the bending region is not less than the arc length corresponding to the preset bending radius, and the width of the bending region is consistent with the main body width of the second FPC.
[0008] Furthermore, the connection between the first extension segment and the second extension segment of the L-shaped structure adopts a circular arc transition, and the radius of the circular arc transition is not less than 0.5mm.
[0009] Furthermore, the glass body is LCD glass, and the electrode pressing area is electrically connected to the electrode on the side of the LCD glass through metal pins.
[0010] Furthermore, the first pressing portion of the first FPC and the electrode pressing area of the second FPC are located on opposite sides of the glass body, and the two do not overlap in the thickness direction of the glass body.
[0011] The above-mentioned technical solutions adopted in the embodiments of this utility model can achieve the following beneficial effects:
[0012] This invention designs the FPC on the easily torn side as an L-shaped structure, which completely separates the electrode crimping area from the bending area in space. The tensile force generated during bending only acts on the bending area and is not transmitted to the electrode crimping point between the FPC and the glass body, thus fundamentally avoiding the tearing problem caused by pulling at the crimping point.
[0013] By eliminating the risk of tearing, the structural design, including conductive adhesive bonding and conductive metal pins, ensures stable electrical and physical connections between the FPC and the glass electrode. At the same time, the positional layout of the FPCs on both sides [without overlapping in the thickness direction] avoids mutual interference, further improving the stability and durability of the overall connection structure and meeting the long-term use requirements of the LCD module. Attached Figure Description
[0014] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:
[0015] Figure 1 This is a schematic diagram of the single-sided pressing structure of the glass body in this utility model;
[0016] Figure 2 This is a schematic diagram of the two-sided pressing structure of the glass body in this utility model;
[0017] Figure 3 This is a three-dimensional structural diagram of the present invention;
[0018] Figure 4 This is a schematic diagram of an existing structure that is prone to tearing.
[0019] Figure 5 This is a schematic diagram of the existing system before the improvement.
[0020] Figure Labels
[0021] Glass body 1, first FPC 2, second FPC 3. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0023] The technical solutions provided by the various embodiments of this utility model are described in detail below with reference to the accompanying drawings.
[0024] This utility model embodiment provides a connector between an FPC and a glass LCD, applied to an FPC in a liquid crystal display module where both sides of the glass body 1 need to be pressed together. It includes a glass body 1 and a first FPC 2 and a second FPC 3 respectively pressed onto both sides of the glass body 1. The second FPC 3 has an L-shaped structure, and the L-shaped structure includes a first extension section and a second extension section that are perpendicular to each other. The end of the first extension section away from the second extension section forms an electrode pressing area connected to the corresponding side electrode of the glass body 1. The second extension section forms a bending area for bending operations. The electrode pressing area and the bending area are spatially separated. The first FPC 2 has a straight extension structure, with one end forming a first pressing part connected to the corresponding side electrode of the glass body 1, and the other end extending straight away from the glass body 1 to form a first extension part.
[0025] This device designs the FPC on the easily torn side as an L-shaped structure, which completely separates the electrode crimping area from the bending area in space. The tensile force generated during the bending operation only acts on the bending area and will not be transmitted to the electrode crimping point between the FPC and the glass body 1, thus fundamentally avoiding the tearing problem caused by pulling at the crimping part.
[0026] By eliminating the risk of tearing, the structural design, including conductive adhesive bonding and conductive metal pins, ensures stable electrical and physical connections between the FPC and the glass electrode. At the same time, the positional layout of the FPCs on both sides [without overlapping in the thickness direction] avoids mutual interference, further improving the stability and durability of the overall connection structure and meeting the long-term use requirements of the LCD module.
[0027] In a further preferred embodiment of this utility model, the electrode pressing area is fixed to the side electrode of the glass body 1 by conductive adhesive, and the length of the electrode pressing area is adapted to the length of the corresponding side electrode of the glass body 1. The length of the bending area is not less than the arc length corresponding to the preset bending radius, and the width of the bending area is consistent with the main body width of the second FPC3. The connection between the first extension segment and the second extension segment of the L-shaped structure adopts an arc transition, and the radius of the arc transition is not less than 0.5mm. The glass body 1 is LCD glass. The electrode pressing area is electrically connected to the electrode on the side of the LCD glass through metal pins. The first pressing part of the first FPC2 and the electrode pressing area of the second FPC3 are located on opposite sides of the glass body 1, and the two do not overlap in the thickness direction of the glass body 1.
[0028] Operating details of this device:
[0029] The pressing areas of the first FPC2 and the second FPC3 do not overlap in the thickness direction of the glass body 1, so as to avoid mutual interference;
[0030] The bending area length of the second FPC3 is set to be no less than the arc length corresponding to the preset bending radius. For example, when the bending radius is 1mm, the bending area length is no less than 3.14mm, and the width is consistent with the FPC body, so as to ensure that the stress is concentrated in the bending area during the bending operation.
[0031] The electrode crimping area is electrically connected to the glass electrode through metal pins to ensure stable conductivity.
[0032] Usage process:
[0033] When the FPC needs to be bent to the back of the display screen, the bending area of the second FPC3 is separated from the electrode crimping area by the L-shaped structure, and the tensile force generated by bending will not be transmitted to the crimping point.
[0034] When the first FPC2 is bent, the tension generated between it and the glass body 1 will only bring the two closer together, and will not cause tearing or other problems.
[0035] Summary of Results:
[0036] The above implementation methods achieve the following effects:
[0037] Tear-resistant effect: The L-shaped structure of the second FPC3 completely separates the bending area from the electrode crimping area. When bending, the crimping area is not under tension, which completely solves the problem of easy tearing of unilateral FPC in the prior art.
[0038] Connection stability: The conductive adhesive is pressed together with the metal pins to ensure that the electrical and physical connections between the FPC and the glass electrode are stable and reliable, with no risk of poor contact.
[0039] Structural rationality: The positions of the first FPC2 and the second FPC3 are designed to avoid mutual interference, and the rounded transition of the L-shaped corner reduces stress concentration and improves the overall structural durability.
[0040] Adaptability: By adjusting the length of the bending area and the transition radius, it can adapt to different bending requirements and is suitable for various LCD module assembly scenarios.
[0041] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.
Claims
1. A connector between an FPC and a glass LCD, characterized in that: The device includes a glass body (1) and a first FPC (2) and a second FPC (3) respectively pressed onto both sides of the glass body (1). The second FPC (3) is an L-shaped structure and includes a first extension section and a second extension section that are perpendicular to each other. The end of the first extension section away from the second extension section forms an electrode pressing area connected to the corresponding side electrode of the glass body (1). The second extension section forms a bending area for bending operations. The electrode pressing area and the bending area are spatially separated. The first FPC (2) is a straight extension structure. One end of it forms a first pressing part connected to the corresponding side electrode of the glass body (1), and the other end extends straight away from the glass body (1) to form a first extension part.
2. The connector between an FPC and a glass LCD as described in claim 1, characterized in that: The electrode pressing area is fixed to the side electrode of the glass body (1) by conductive adhesive, and the length of the electrode pressing area is adapted to the length of the corresponding side electrode of the glass body (1).
3. The connector between an FPC and a glass LCD as described in claim 1, characterized in that: The length of the bending region is not less than the arc length corresponding to the preset bending radius, and the width of the bending region is consistent with the main body width of the second FPC (3).
4. The connector between an FPC and a glass LCD as described in claim 1, characterized in that: The connection between the first extension and the second extension of the L-shaped structure of the second FPC (3) is made by a circular arc transition, and the radius of the circular arc transition is not less than 0.5 mm.
5. The connector between an FPC and a glass LCD as described in claim 1, characterized in that: The glass body (1) is LCD glass, and the electrode pressing area is electrically connected to the electrode on the side of the LCD glass through metal pins.
6. The connector between an FPC and a glass LCD as described in claim 1, characterized in that: The first crimping portion of the first FPC (2) and the electrode crimping area of the second FPC (3) are located on opposite sides of the glass body (1), and the two do not overlap in the thickness direction of the glass body (1).