CN203554790U

CN203554790U - Flexible circuit board structure

Info

Publication number: CN203554790U
Application number: CN201320649602.0U
Authority: CN
Inventors: 乔伟雄
Original assignee: Wuxi Booyi Optoelectronics Science and Technology Co Ltd
Current assignee: Guangdong Jinlong electromechanical Co., Ltd.
Priority date: 2013-10-21
Filing date: 2013-10-21
Publication date: 2014-04-16
Anticipated expiration: 2023-10-21

Abstract

The utility model provides a flexible circuit board structure. The flexible circuit board structure comprises an interface part and an extension part connected with the interface part; and the interface part comprises a first substrate, a first circuit pattern formed at one side of the first substrate, a green oil layer formed on the first circuit pattern, and a first protective film attached to the other side of the first substrate, and the first protective film is arranged like a Chinese character "hui". One side of the interface part of the flexible circuit board structure is coated with green oil, and circuits can be protected and intensity of the interface part can be enhanced; and the other side of the interface part of the flexible circuit board structure is attached with the protective film shaped like the Chinese character "hui", the intensity of the interface part is reinforced, hardness is not increased, warpage and fracture can be effectively prevented, and quality of a liquid crystal display panel can be effectively improved.

Description

Flexible Printed Circuit structure

Technical field

The utility model relates to a kind of circuit interface, relates in particular to a kind of Flexible Printed Circuit structure.

Background technology

Current, Flexible Printed Circuit (Flexible Printed Circuit, FPC) industry is keeping development faster.FPC has continued most of design considerations of rigid printed substrate, and on this basis, have advantages of that many rigid printed substrates do not possess, for example, distribution density is high, thin thickness, lightweight, distribution spatial limitation is few, collapsible, flexibility ratio is high, and mobile and flexible arbitrarily at three dimensions, thereby reach integrated that components and parts assembling is connected with wire, be widely used in narrow space, removable, folding all kinds of electronics and IT products, such as notebook computer, mobile phone, liquid crystal display, plasma display, digital camera and hard disk, CD-ROM drive, the PC component markets such as mobile storage.Take liquid crystal display as example, it is also very huge to the demand of FPC as the high development product in consumer electronics market.From FPC, with taking temperature, the FPC consumption of a current liquid crystal display is about 2～4, is mainly used in display panels and LCD MODULE.

Refer to Fig. 1, for the package assembly schematic diagram of the driving FPC300 of display panels 100 in liquid crystal display module, the colored filter substrate 104 that described display panels 100 comprises thin film transistor base plate 102 and arranges with thin film transistor base plate 102 laminatings, wherein the size of colored filter substrate 104 is slightly smaller than thin film transistor base plate 102, and then when laminating, at least one side at thin film transistor base plate 102 is formed with offset position 124, drive FPC300 to be just fitted on this offset position 124, to realize the driving to display panels 100, this driving FPC300 is folded to the below of backlight module 500, when driving the interface position 302 of FPC300 really up to the mark, can cause driving the position that FPC300 is connected with display panels 100 that warpage occurs, cause being electrically connected bad.

Above-mentioned bad for overcoming, existing way is at the diaphragm of the interface position that drives FPC and display panels, to excise, to reduce the hardness of this interface position.But this kind of way also caused the intensity of this driving FPC interface position when reducing the hardness that drives FPC interface position, causes this driving FPC interface position easily to rupture, and causes circuit breaker, and then affects the demonstration of display panels.

Utility model content

The purpose of this utility model is to provide a kind of Flexible Printed Circuit structure, it is simple in structure, effectively reduces the hardness of circuit interface position, guarantees the intensity of this circuit interface position simultaneously, effectively prevent the generation of warpage and fracture, effectively improved the quality of display panels.

For achieving the above object; the utility model provides a kind of Flexible Printed Circuit structure; comprise: the extension of interface portion and connecting interface portion; described interface portion comprises the first basic unit, is formed at the first circuitous pattern of first basic unit's one side, is formed at the green oil layer on the first circuitous pattern and is attached at the first diaphragm on first basic unit's opposite side, and described the first diaphragm is the setting of " returning " font.

Described extension comprises: the second basic unit, be formed at second basic unit's one side second circuit figure, be attached at the second diaphragm on second circuit figure and be attached at the 3rd diaphragm of second basic unit's opposite side.

The one-body molded setting of described first and second basic unit; Described first and the one-body molded setting of two diaphragms.

Described Flexible Printed Circuit is applied to mobile phone display panels.

The beneficial effects of the utility model: Flexible Printed Circuit structure of the present utility model; a side by the interface portion in Flexible Printed Circuit applies green oil; in the time of protective circuit, strengthen the intensity of interface portion; and attach " returning " font diaphragm at the opposite side of the interface portion of Flexible Printed Circuit; reinforcement is to the intensity of interface portion; do not increase hardness, effectively prevent the generation of warpage and fracture, effectively improved the quality of display panels simultaneously.

In order further to understand feature of the present utility model and technology contents, refer to following about detailed description of the present utility model and accompanying drawing, but accompanying drawing only provide with reference to and explanation use, be not used for the utility model to be limited.

Accompanying drawing explanation

Below in conjunction with accompanying drawing, by embodiment of the present utility model is described in detail, will make the technical solution of the utility model and other beneficial effect apparent.

In accompanying drawing,

Fig. 1 is the foldable structure schematic diagram of the Flexible Printed Circuit of the drive circuit of display panels in existing liquid crystal display module;

Fig. 2 is the generalized section of the utility model Flexible Printed Circuit structure;

Fig. 3 is the structural representation of the utility model the first diaphragm.

Embodiment

Technological means and the effect thereof for further setting forth the utility model, taked, be described in detail below in conjunction with preferred embodiment of the present utility model and accompanying drawing thereof.

Refer to Fig. 2 and Fig. 3; the utility model provides a kind of Flexible Printed Circuit structure; comprise: the extension 24 of interface portion 22 and connecting interface portion 22; described interface portion 22 comprises the first basic unit 222, be formed at the first circuitous pattern 224 of first basic unit's 222 1 sides, be formed at the green oil layer 226 on the first circuitous pattern 224 and be attached at the first diaphragm 228 of first basic unit's 222 opposite sides, and described diaphragm is the setting of " returning " font.

Because this first diaphragm 228 is the setting of " returning " font; it is the intensity at reinforcement the first basic unit 222 edges effectively; make these the first basic unit 222 edges be not easy to be torn; simultaneously; due to window 230 existence of centre; effectively reduce the hardness at this place, and then avoid the warpage in use causing because hardness is excessive to occur.

Described green oil is liquid photopolymerizable solder resist, and it is a kind of protective layer, and being coated in printed circuit board does not need on the circuit and base material of welding, to protect for a long time the line pattern being formed.

Described extension 24 comprises: the second basic unit 242, be formed at second basic unit's 242 1 sides second circuit figure 244, be attached at second circuit figure 244 second diaphragms 246 and be attached at the 3rd diaphragm 248 on second basic unit's 242 opposite sides.

Particularly, described first and second basic unit's 222,242 one-body molded settings; Described first and second diaphragm 228,246 one-body molded settings.

Particularly, the concrete formation technique of this Flexible Printed Circuit can be: first on copper foil layer, form circuitous pattern; Then on the circuitous pattern of a side, attach a diaphragm, this diaphragm is attached at the extension of Flexible Printed Circuit; Then in this side, do not attach the position coating green oil of a diaphragm; Finally on the circuitous pattern of opposite side, attach another diaphragm, this another diaphragm corresponding interface portion is provided with one and windows, and can complete the making of whole piece Flexible Printed Circuit, and processing procedure is simple, effectively promotes the quality of Flexible Printed Circuit.

In sum; Flexible Printed Circuit structure of the present utility model; a side by the interface portion in Flexible Printed Circuit applies green oil; in the time of protective circuit, strengthen the intensity of interface portion; and attach " returning " font diaphragm at the opposite side of the interface portion of Flexible Printed Circuit, and reinforcement is to the intensity of interface portion, and the while does not increase hardness; effectively prevent the generation of warpage and fracture, effectively improved the quality of display panels.

The above; for the person of ordinary skill of the art; can make other various corresponding changes and distortion according to the technical solution of the utility model and technical conceive, and all these changes and distortion all should belong to the protection range of the utility model claim.

Claims

1. a Flexible Printed Circuit structure; it is characterized in that; comprise: the extension of interface portion and connecting interface portion; described interface portion comprises the first basic unit, is formed at the first circuitous pattern of first basic unit's one side, is formed at the green oil layer on the first circuitous pattern and is attached at the first diaphragm on first basic unit's opposite side, and described the first diaphragm is the setting of " returning " font.

2. Flexible Printed Circuit structure as claimed in claim 1; it is characterized in that, described extension comprises: the second basic unit, be formed at second basic unit's one side second circuit figure, be attached at the second diaphragm on second circuit figure and be attached at the 3rd diaphragm of second basic unit's opposite side.

3. Flexible Printed Circuit structure as claimed in claim 2, is characterized in that, the one-body molded setting of described first and second basic unit; Described first and the one-body molded setting of two diaphragms.

4. Flexible Printed Circuit structure as claimed in claim 1, is characterized in that, described Flexible Printed Circuit is applied to mobile phone display panels.