Novel display module with FPC bending area easy to bend
By setting staggered openings in the bending area of the FPC module and coating it with a thermosetting green oil layer, the problem of screen damage in the bending area of the FPC is solved, and the bending performance and reliability of the display module are improved.
Patent Information
- Application Number
- CN202520458529.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-13
AI Technical Summary
Existing technologies have a problem with screen damage in display modules in the bending area of FPC, which leads to product malfunction and increased production costs.
In the bending area of the module FPC, staggered opening areas are set on the front and back sides, and a thermosetting green varnish layer is applied to these areas to ensure that the opening is 0.5mm away from the edge of the FPC and the thickness of the green varnish layer is 10-18um.
It improves the bending performance of the module FPC, avoids tearing and circuit breakage caused by bending stress, and improves product reliability.
Smart Images
Figure CN223872476U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to display module technical field especially relates to a novel FPC bending area easy bending's display module. BACKGROUND
[0002] In the display module for mobile phone and other electronic equipment, the assembly and performance requirement is higher and higher, usually requires doing the copper processing of paving the grid or the single side green oil processing at the FPC machine shell bending place, to realize better bending performance. But when the whole machine space design is small, the bending area uses the copper way of paving the net or uses the way of digging the PI of bending area and then printing the single side bending hot green oil, all will exist the problem of screen top injury, leading to product function failure, appearing the problem of scrapping, increasing the production cost.
[0003] Therefore, the prior art has defects and needs to be improved. UTILITY MODEL CONTENT
[0004] The utility model discloses a novel FPC bending area easy bending's display module which overcomes the defects of the prior art.
[0005] The utility model discloses a novel FPC bending area easy bending's display module, including: display module, the display module includes module FPC, the module FPC includes bending area, the front of module FPC forms at corresponding the bending area place with the front window, the back of module FPC forms at corresponding the bending area place with the back window, the left and right two side edge distance of front window and back window corresponding the edge of module FPC is greater than or equal to 0.5mm, the upper edge of front window and the upper edge of back window staggered distance is greater than or equal to 0.5mm, the lower edge of front window and the lower edge of back window staggered distance is greater than or equal to 0.5mm, the front of module FPC is equipped with the front green oil layer of covering front window, the back of module FPC is equipped with the back green oil layer of covering back window.
[0006] Further, the thickness of the front green oil layer and the back green oil layer is 10-18um.
[0007] Further, the left and right two side edge distance of front window and back window corresponding the edge of module FPC is 0.5mm.
[0008] Further, the upper edge of front window and the upper edge of back window staggered distance is 0.5mm, and the lower edge of front window and the lower edge of back window staggered distance is 0.5mm.
[0009] The beneficial effects of the display module lie in that: the up-and-down staggered windowing regions and the thermosetting green oil layer are arranged on the front and back regions of the bending region of the module FPC, which can improve the bending performance, avoid damage of the display module caused by the bending stress, and improve the strength of the module FPC, so as to avoid problems such as tearing and circuit breaking of the module FPC, and improve the product reliability. BRIEF DESCRIPTION OF DRAWINGS
[0010] Fig. 1 It is a structure schematic view of the front of the module FPC of an embodiment of the utility model.
[0011] Fig. 2 It is a structure schematic view of the back of the module FPC of an embodiment of the utility model.
[0012] Fig. 3 It is a sectional view schematic view of the module FPC of an embodiment of the utility model. DETAILED DESCRIPTION
[0013] The utility model will be explained in detail in combination with the drawings and specific embodiments.
[0014] Please combine with Figs. 1 to 3 In the embodiment, the utility model provides a kind of display module of novel FPC bending area easy to bend, comprising: display module, display module includes module FPC 1, module FPC 1 includes bending area 11, the front of module FPC 1 is formed with front windowing 12 at corresponding bending area 11, the back of module FPC 1 is formed with back windowing 13 at corresponding bending area 11, front windowing 12 and back windowing 13 are not covered by cover film, so bending stress can be reduced, so that module FPC 1 is easy to bend, the distance of the left and right side edges of front windowing 12 and back windowing 13 from the left and right edges of corresponding module FPC 1 is 0.5mm, it is guaranteed that the left and right sides of module FPC 1 are covered by cover film, avoid affecting protection effect, the distance of the upper edge of front windowing 12 from the upper edge of back windowing 13 is 0.5mm, the distance of the lower edge of front windowing 12 from the lower edge of back windowing 13 is 0.5mm, since cover film is pasted with 0.2mm tolerance, set 0.5mm staggered distance, it can be guaranteed that the upper and lower edges of front windowing 12 and back windowing 13 are still staggered at least 0.1mm under extreme tolerance condition, it is guaranteed that one side of edge is covered by cover film, prevent bending stress concentration and lead to problems such as circuit breaking, the front of module FPC 1 is provided with front green oil layer 14 covering front windowing 12, the back of module FPC 1 is provided with back green oil layer 15 covering back windowing 13, and green oil layer can protect circuit.
[0015] Further, the thickness of the front green oil layer 14 and the back green oil layer 15 is 10-18um, which is set on the module FPC 1 through heat curing.
[0016] In summary, the beneficial effects of the present scheme are: in the front and back areas of the bending area of the module FPC through the shell, the up and down staggered windowing area and the heat setting green oil layer are set, which not only can improve the bending performance, avoid the damage of the bending stress to the display module, and because the front and back windowing is staggered, the strength of the module FPC can be improved, avoiding the tearing and line fracture of the module FPC, and improving the product reliability.
[0017] The above is only a preferred embodiment of the present application, and is not used to limit the present application, any modification, equivalent replacement and improvement within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims
1. A novel FPC display module with an easily bendable bending area, characterized in that, include: The display module includes a component form factor (FPC) module. The FPC module includes a bending area. A front window is formed on the front side of the FPC module at the bending area, and a back window is formed on the back side of the FPC module at the bending area. The distance between the left and right edges of the front and back windows and the corresponding edges of the FPC module is greater than or equal to 0.5 mm. The upper edge of the front window and the upper edge of the back window are offset by a distance greater than or equal to 0.5 mm. The lower edge of the front window and the lower edge of the back window are offset by a distance greater than or equal to 0.5 mm. A front green varnish layer is provided on the front side of the FPC module to cover the front window, and a back green varnish layer is provided on the back side of the FPC module to cover the back window.
2. The FPC bending area bendable display module according to claim 1, characterized in that, The thickness of both the front and back green oil layers is 10-18 μm.
3. The FPC bending area bendable display module according to claim 2, characterized in that, The distance between the left and right edges of the front and rear windows and the corresponding edge of the module FPC is 0.5mm.
4. The FPC bending area bendable display module according to any one of claims 1 to 3, characterized in that, The upper edge of the front window is offset from the upper edge of the rear window by 0.5mm, and the lower edge of the front window is offset from the lower edge of the rear window by 0.5mm.