CN209343081U - One kind is for shielding flexible print circuit board fixed structure comprehensively - Google Patents
One kind is for shielding flexible print circuit board fixed structure comprehensively Download PDFInfo
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- CN209343081U CN209343081U CN201920239052.2U CN201920239052U CN209343081U CN 209343081 U CN209343081 U CN 209343081U CN 201920239052 U CN201920239052 U CN 201920239052U CN 209343081 U CN209343081 U CN 209343081U
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- circuit board
- print circuit
- flexible print
- fixed structure
- iron frame
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Abstract
The utility model discloses one kind for shielding flexible print circuit board fixed structure comprehensively, including comprehensive panel glass layer, backlight assembly, flexible print circuit board and iron frame, iron frame is located at the top of backlight assembly, flexible print circuit board is set to the lower end of backlight assembly, and it is located at the upper end of iron frame after being folded upward at, it further includes adhesive layer that this, which is used to shield flexible print circuit board fixed structure comprehensively, adhesive layer is filled in the lower end of comprehensive panel glass layer and between the upper end of iron frame side flexible print circuit board, the utility model is by increasing double-sided adhesive, the design of the adhesive layers such as optical cement or liquid optical cement, flexible print circuit board is fixed on comprehensive panel glass layer, interference is generated to backlight after preventing flexible print circuit board from bending, especially falling off after reliability test, the bad exception such as light leakage and fold.
Description
Technical field
The utility model relates to LCM(Liquid Crystal Modules) display equipment technical field, more particularly to it is a kind of soft for shielding comprehensively
Property printed wire board fixing structure.
Background technique
Existing LCM(Liquid Crystal Module) display field, the design of flexible print circuit board structure is as shown in Figure 1, flexible printing line
Road plate is arranged on backlight assembly, after bending, is fixed on above iron frame by double-sided adhesive.
In order to improve screen accounting as far as possible, reach screen visual effect comprehensively, lower frame requirement is smaller and smaller, currently requires that soft
Property printed wiring board and backlight assembly between outer dimension managed according to d≤0.45mm, in order to meet this requirement, flexibility print
Brush wiring board is very compact in bending region, in addition, the screen resilience for the flexible print circuit board being fixed on iron frame is also bigger,
Bring new problem in practice, be exactly flexible print circuit board after bending can and backlight interference it is serious, in turn result in backlight and
Fall off, especially after reliability test, fall off, light leakage, fold the problems such as take place frequently.
Utility model content
The purpose of this utility model is to provide one kind for shielding flexible print circuit board fixed structure comprehensively, passes through increase
Flexible print circuit board is fixed on comprehensive panel glass layer by the design of the adhesive layers such as double-sided adhesive, optical cement or liquid optical cement,
Interference is generated to backlight after preventing flexible print circuit board from bending.
In order to achieve the above objectives, the technical solution adopted in the utility model is: one kind is for shielding flexible printed wiring comprehensively
Board fixing structure, including comprehensive panel glass layer, backlight assembly, flexible print circuit board and iron frame, the iron frame are located at backlight group
The top of part, the flexible print circuit board are set to the lower end of backlight assembly, and are located at the upper end of iron frame after being folded upward at, should
It further include adhesive layer for shielding flexible print circuit board fixed structure comprehensively, the adhesive layer is filled under comprehensive panel glass layer
Between end and the upper end of close iron frame side flexible print circuit board.
As further optimization, the adhesive layer is glue class adhesive layer.
As further optimization, the adhesive layer with a thickness of 0.1-0.5mm.
As further optimization, the adhesive layer be double-sides belt calymma cotton, double-sided adhesive, optical cement, liquid optical cement or
Shadowless glue etc..
As further optimization, the flexible print circuit board is fixed on lower end and the iron of backlight assembly by double-sided adhesive
The upper end of frame.
As further optimization, the flexible print circuit board is bent in an arc shape between place and backlight assembly side wall most
The size of big spacing is less than or equal to 0.45mm.
Compared with prior art, the utility model have it is below the utility model has the advantages that
By increasing the design of the adhesive layers such as double-sided adhesive, optical cement or liquid optical cement, flexible print circuit board is fixed
Interference is generated to backlight after on comprehensive panel glass layer, preventing flexible print circuit board from bending, especially after reliability test
It falls off, the bad exception such as light leakage and fold.
Detailed description of the invention
Fig. 1 is the fixed schematic diagram of conventional flexible printed wiring board.
Fig. 2 is the schematic diagram of the utility model.
In figure, 1. comprehensive panel glass layers；2. backlight assembly；3. flexible print circuit board；4. iron frame；5. adhesive layer.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
As shown in Figure 1, conventional flexible printed wiring board is arranged on backlight assembly, it is fixed on after bending by double-sided adhesive
Above iron frame, the maximum spacing between the flexible circuit board place of being bent in an arc shape and backlight assembly side wall is denoted as d.
As shown in Fig. 2, a kind of for shielding flexible print circuit board fixed structure, including comprehensive panel glass layer 1, backlight comprehensively
Component 2, flexible print circuit board 3 and iron frame 4, iron frame 4 are located at the top of backlight assembly 2, and flexible print circuit board 3 is set to back
The lower end of optical assembly 2, and it is located at the upper end of iron frame 4 after being folded upward at, this is used to shield flexible print circuit board fixed structure comprehensively
It further include adhesive layer 5, adhesive layer 5 is filled in the lower end of comprehensive panel glass layer 1 and close to 4 side flexible print circuit board 3 of iron frame
Upper end between.
Adhesive layer 5 is glue class adhesive layer.
Adhesive layer 5 with a thickness of 0.1-0.5mm, set according to the spacing between comprehensive panel glass layer and flexible print circuit board
Meter.
Adhesive layer 5 is double-sides belt calymma cotton, double-sided adhesive, optical cement, liquid optical cement or shadowless glue etc..
Flexible print circuit board 3 is fixed on the lower end of backlight assembly 2 and the upper end of iron frame 4 by double-sided adhesive.
The size of maximum spacing d between 2 side wall of the place of being bent in an arc shape and backlight assembly of flexible print circuit board 3 is less than or equal to
0.45mm。
Adhesive layer substance existing way can attach before or Mo Zu factory fitting included for flexible print circuit board supplied materials
In on comprehensive panel glass layer or flexible print circuit board, process above is all relatively mature.
The utility model is by increasing the adhesive layer between comprehensive panel glass layer and flexible print circuit board, by flexible printing
Wiring board is fixed on the lower surface of comprehensive panel glass layer after stretching out backlight assembly, so as to avoid flexible print circuit board bending
The severe interference that backlight is generated afterwards, falling off after further improving obscission, especially reliability test, light leakage and
The bad exception such as fold.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (6)
1. one kind is for shielding flexible print circuit board fixed structure comprehensively, including it is comprehensive panel glass layer (1), backlight assembly (2), soft
Property printed wiring board (3) and iron frame (4), the iron frame (4) are located at the top of backlight assembly (2), the flexible print circuit board
(3) it is set to the lower end of backlight assembly (2), and is located at the upper end of iron frame (4) after being folded upward at, which is characterized in that further includes gluing
It ties layer (5), the adhesive layer (5) is filled in the lower end of comprehensive panel glass layer (1) and close to iron frame (4) side flexible printed wiring
Between the upper end of plate (3).
2. according to claim 1 for shielding flexible print circuit board fixed structure comprehensively, which is characterized in that the bonding
Layer (5) is glue class adhesive layer.
3. according to claim 2 for shielding flexible print circuit board fixed structure comprehensively, which is characterized in that the bonding
Layer (5) with a thickness of 0.1-0.5mm.
4. according to claim 2 for shielding flexible print circuit board fixed structure comprehensively, which is characterized in that the bonding
Layer (5) is double-sides belt calymma cotton, double-sided adhesive, optical cement, liquid optical cement or shadowless glue.
5. according to any one of claims 1-4 for shielding flexible print circuit board fixed structure comprehensively, feature exists
In the flexible print circuit board (3) is fixed on the lower end of backlight assembly (2) and the upper end of iron frame (4) by double-sided adhesive.
6. according to claim 5 for shielding flexible print circuit board fixed structure comprehensively, which is characterized in that the flexibility
The size for the maximum spacing of printed wiring board (3) being bent in an arc shape between place and backlight assembly (2) side wall is less than or equal to 0.45mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920239052.2U CN209343081U (en) | 2019-02-26 | 2019-02-26 | One kind is for shielding flexible print circuit board fixed structure comprehensively |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920239052.2U CN209343081U (en) | 2019-02-26 | 2019-02-26 | One kind is for shielding flexible print circuit board fixed structure comprehensively |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209343081U true CN209343081U (en) | 2019-09-03 |
Family
ID=67762671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920239052.2U Active CN209343081U (en) | 2019-02-26 | 2019-02-26 | One kind is for shielding flexible print circuit board fixed structure comprehensively |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209343081U (en) |
-
2019
- 2019-02-26 CN CN201920239052.2U patent/CN209343081U/en active Active
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