Display module capable of reducing bending size of FPC (Flexible Printed Circuit)

By forming a chamfer or rounded corner structure at the corners of the bending area of ​​the LCD display module FPC and setting a line of glue, the problem of large size and overflow of glue after bending of the module FPC is solved, and a narrower lower frame and a higher screen-to-body ratio are achieved.

CN222762356UActive Publication Date: 2025-04-15SHENZHEN TXD TECH CO LTD
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Patent Information

Application Number
CN202420659846.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-01
Publication Date
2025-04-15
Estimated Expiration
2034-04-01

AI Technical Summary

Technical Problem

The existing LCD display module FPC has a large protrusion after bending, which affects the width of the lower frame after the whole machine is installed, and the glue is prone to overflow, causing glue overflow problems.

Method used

A chamfer or rounded corner structure is formed at the corners of the liquid crystal glass and the module FPC bend area, and a line of glue is set in this area to control the penetration path of the glue.

Benefits of technology

Through chamfered or rounded corner structure, the protruding size of the module FPC after bent is reduced to about 0.25mm-0.5mm, improving the lower frame width of the display screen, avoiding glue overflow problems, and improving the screen-to-body ratio and aesthetics.

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Abstract

The utility model discloses a display module capable of reducing the bending size of a flexible printed circuit (FPC), which comprises liquid crystal glass and a module FPC, one end of the module FPC is bound and connected below the liquid crystal glass, and a chamfer structure or a fillet structure is formed at the corner where the liquid crystal glass is contacted with the bending area of the module FPC. The beneficial effects of the utility model lie in that after the liquid crystal glass is provided with the chamfer structure or the fillet structure, glue can permeate along the chamfer surface of the liquid crystal glass when the line glue is dispensed, so that the situation that the glue overflows to the outer side of the module FPC is not easy to occur, the width of the formed line glue is easy to control, and the production efficiency is improved. According to the technical scheme of the invention, the projection size of the module FPC after bending can be smaller and is about 0.25 mm-0. 5mm, so that the lower frame of the display screen of the subsequent electronic equipment is narrower, and the screen-to-body ratio and the aesthetic feeling are improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of display modules, and in particular to a display module capable of reducing the bending size of an FPC. Background Art

[0002] Please refer to Figure 1 The liquid crystal display screen generally includes components such as liquid crystal glass 10, driver IC, module FPC 20 and backlight assembly. Under the conventional design, one end of the module FPC 20 is connected and bound to the bottom of the liquid crystal glass 10, and then a line of glue 30 made of silicone glue or UV glue is set at the connection between the liquid crystal glass 10 and the module FPC 20 to achieve waterproof sealing and other functions. This structural design has the following problems: 1. Due to the existence of the line of glue 30, the module FPC 20 is bent and protruded to a large size after subsequent bending, which affects the width of the lower frame after the subsequent whole machine is installed; 2. When applying the line of glue 20, the glue easily penetrates to the outside of the module FPC 2, causing the problem of glue overflow.

[0003] Therefore, the prior art has defects and needs to be improved. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a display module with a reduced bending size of an FPC.

[0005] The technical solution of the utility model is as follows: The utility model provides a display module that reduces the bending size of an FPC, comprising: a liquid crystal glass and a module FPC, one end of the module FPC being bound and connected underneath the liquid crystal glass, and a chamfered structure or a rounded structure being formed at the corners where the liquid crystal glass contacts the bending area of ​​the module FPC.

[0006] Optionally, a chamfered structure is formed at the corner where the liquid crystal glass contacts the bending area of ​​the module FPC.

[0007] Optionally, the chamfered structure is a 45-degree chamfer, and the length of the straight side of the chamfer is 0.1 mm-0.15 mm.

[0008] Optionally, a rounded structure is formed at the corners where the liquid crystal glass contacts the bending area of ​​the module FPC.

[0009] Optionally, the radius of the rounded structure is 0.1 mm-0.15 mm.

[0010] Furthermore, a line of glue is provided at the contact point between the liquid crystal glass and the bending area of ​​the module FPC.

[0011] Furthermore, the solution also includes a backlight module and a driver IC, wherein the driver IC is bound and arranged on the liquid crystal glass, and the backlight module is stacked and arranged on the lower layer of the liquid crystal glass.

[0012] By adopting the above scheme, the beneficial effect of the utility model is that after the chamfered structure or the rounded structure is set on the liquid crystal glass, when a line of glue is applied, the glue will penetrate along the chamfered surface of the liquid crystal glass, so it is not easy for the glue to overflow to the outside of the module FPC, and it is easy to control the width of the first line of glue after molding, so that the protruding size after the module FPC is bent can be made smaller, about 0.25mm-0.5mm, so that the lower frame of the display screen of the subsequent electronic device is narrower, and the screen-to-body ratio and aesthetics are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of an existing display module.

[0014] Figure 2 It is a structural schematic diagram of an embodiment of the utility model.

[0015] Figure 3 The figure is a schematic structural diagram of a liquid crystal glass according to an embodiment of the present invention. DETAILED DESCRIPTION

[0016] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0017] Please refer to Figure 2 and Figure 3 The utility model provides a display module with reduced FPC bending size, comprising: a liquid crystal glass 1 and a module FPC 2, one end of the module FPC 2 is bound and connected below the liquid crystal glass 1. In this embodiment, a rounded corner structure 11 is formed at the corner where the liquid crystal glass 1 contacts the bending area of ​​the module FPC 2. The radius of the rounded corner structure 11 is 0.1mm-0.15mm.

[0018] Furthermore, a line of glue 3 is provided at the contact point between the liquid crystal glass 1 and the bending area of ​​the module FPC 2 .

[0019] Furthermore, the solution also includes a backlight module and a driver IC (not shown), wherein the driver IC is bound and arranged on the liquid crystal glass 1 , and the backlight module is stacked and arranged on the lower layer of the liquid crystal glass 1 .

[0020] Optionally, in other embodiments of the present invention, the corners where the liquid crystal glass contacts the bending area of ​​the module FPC may also be chamfered. Optionally, the chamfered structure is a 45-degree chamfer, and the length of the straight side of the chamfer is 0.1 mm-0.15 mm.

[0021] To sum up, in this solution, after setting a chamfer structure or a rounded structure on the liquid crystal glass, when applying a line of glue, the glue will penetrate along the chamfered surface of the liquid crystal glass, so it is not easy for the glue to overflow to the outside of the module FPC, and it is easy to control the width of the first line of glue after molding, so that the protruding size after the module FPC is bent can be made smaller, about 0.25mm-0.5mm, so that the lower frame of the display screen of the subsequent electronic device is narrower, and the screen-to-body ratio and aesthetics are improved.

[0022] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A display module with reduced bending dimension of FPC, characterized in that: include: Liquid crystal glass and module FPC, one end of the module FPC is bound and connected below the liquid crystal glass, and a chamfered structure or a rounded structure is formed at the corner where the liquid crystal glass contacts the bending area of ​​the module FPC.

2. The display module with reduced FPC bending dimension according to claim 1, characterized in that: A chamfered structure is formed at the corner where the liquid crystal glass contacts the bending area of ​​the module FPC.

3. The display module with reduced FPC bending dimension according to claim 2, characterized in that: The chamfered structure is a 45-degree chamfer, and the length of the straight side of the chamfer is 0.1 mm-0.15 mm.

4. The display module with reduced FPC bending dimension according to claim 1, characterized in that: A rounded corner structure is formed at the corner where the liquid crystal glass contacts the bending area of ​​the module FPC.

5. The display module with reduced FPC bending dimension according to claim 1, characterized in that: The radius of the rounded corner structure is 0.1 mm-0.15 mm.

6. The display module with reduced FPC bending dimension according to any one of claims 1 to 5, characterized in that: A line of glue is provided at the contact point between the liquid crystal glass and the bending area of ​​the module FPC.

7. The display module with reduced FPC bending dimension according to claim 6, characterized in that: It also includes a backlight module and a driver IC. The driver IC is bound and arranged on the liquid crystal glass, and the backlight module is stacked and arranged on the lower layer of the liquid crystal glass.