CN105898985A - Flexible circuit board for vehicle-mounted liquid crystal display screen - Google Patents
Flexible circuit board for vehicle-mounted liquid crystal display screen Download PDFInfo
- Publication number
- CN105898985A CN105898985A CN201610414245.8A CN201610414245A CN105898985A CN 105898985 A CN105898985 A CN 105898985A CN 201610414245 A CN201610414245 A CN 201610414245A CN 105898985 A CN105898985 A CN 105898985A
- Authority
- CN
- China
- Prior art keywords
- coverlay
- material plate
- cover film
- circuit board
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/03—Use of materials for the substrate
- H05K1/05—Insulated conductive substrates, e.g. insulated metal substrate
- H05K1/056—Insulated conductive substrates, e.g. insulated metal substrate the metal substrate being covered by an organic insulating layer
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/05—Flexible printed circuits [FPCs]
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Non-Metallic Protective Coatings For Printed Circuits (AREA)
Abstract
The invention discloses a flexible circuit board for a vehicle-mounted liquid crystal display screen. The flexible circuit board longitudinally comprises a cover film I, a base material plate and a cover film II which are aligned at the left side end part, wherein the cover film I, the base material plate and the cover film II are fixedly adhered in sequence; the upper surface and the lower surface of the base material plate are covered with the cover film I and the cover film II respectively; the length ratio of the cover film I to the base material plate is 4: 5; and the length ratio of the cover film II to the base material plate is 3: 4. The flexible circuit board for the vehicle-mounted liquid crystal display screen disclosed by the invention has the advantages of simple structure, bending resistance, pressure resistance, heat resistance, convenient use, high sensitivity, long service life and the like. The substrate plate of the flexible circuit board adopts a polymide copper-clad plate, the copper plate is high in purity and uniform in structure, and the crystal orientation of the copper plate is parallel to the route of a circuit, so that the toughness of the substrate plate is improved. Meanwhile, high-temperature treatment is carried out on the substrate plate before the circuit is prepared, so that the flexural property of the substrate plate is further enhanced, and the flexural capacity of the flexible circuit board is improved effectively.
Description
Technical field
The present invention relates to a kind of flex circuit application, particularly relate to a kind of vehicle-mounted LCDs flex circuit application.
Background technology
Flex circuit application, also known as FPC or flexible printed circuit board, flexible printed circuit board (Flexible
Printed Circuit Board) printed circuit made with flexible insulating substrate, there is many rigid printings
The advantage that circuit board does not possesses.Such as it can with free bend, wind, fold, can be according to space layout requirement
Arbitrarily arrange, and arbitrarily move at three dimensions and stretch, thus reach components and parts assembling and the one of wire connection
Body.Utilize FPC can be substantially reduced the volume of electronic product, be suitable for electronic product to high density, miniaturization,
The needs that highly reliable direction is developed.Therefore, FPC is in space flight, military affairs, mobile communication, laptop computer, calculating
It is widely used on the fields such as machine peripheral hardware, PDA, digital camera or product.FPC——Flexible
Printed Circuit flexible electric circuit board is also known as flexible circuit board；With mylar or polyimides as base material, pass through
It is etched on Copper Foil the one forming circuit and make and there is height reliability, the printed circuit of excellent flexibility.
FPC also has good thermal diffusivity and solderability and is prone to the advantages such as load, integrated cost be relatively low, soft
The design that scleroma is closed compensate for the flexible parent metal slightly deficiency in element bearing capacity the most to a certain extent.
Flexible print circuit board have one side, two-sided and multi-layer sheet point.The base material used is with polyimide copper-clad
Plate is main.This kind of material thermal resistance height, good stability of the dimension, and have mechanical protection and good electrical insulating properties concurrently
The coverlay of energy forms final products by compacting.Two-sided, the top layer of multilayer printed wiring board and inner conductor lead to
Cross metallization and realize the electrical connection of ectonexine circuit.
Summary of the invention
The technical problem to be solved is to provide the vehicle-mounted liquid crystal of a kind of low cost, high-performance stability
Display screen flex circuit application.
For solving above-mentioned technical problem, the technical solution adopted in the present invention is:
A kind of vehicle-mounted LCDs flex circuit application, longitudinal direction includes coverlay I that left end aligns,
Backing material plate and coverlay II, described coverlay I, backing material plate and coverlay II are fixing successively to be pasted, described covering
Film I and coverlay II is respectively overlay in the upper and lower surface of backing material plate, described coverlay I and backing material plate
Length ratio 4: 5, described coverlay II is 3: 4 with the length ratio of backing material plate.
Further preferably, described backing material plate is polyimide copper clad lamination, and the thickness of described backing material plate is 125 μm.
Further preferably, described coverlay I and coverlay II is polyester resin film, described coverlay I and covering
The thickness of epiphragma II is 9～18 μm.
Further preferably, the length ratio of described coverlay I and coverlay II is 1: 1～16: 15.
Compared to prior art, the present invention vehicle-mounted LCDs flex circuit application has the beneficial effect that
The present invention vehicle-mounted LCDs flex circuit application have simple in construction, resistance to bending, pressure, heat-resisting,
The advantages such as easy to use, high sensitivity, life-span length, the backing material plate of the present invention uses polyimide copper clad lamination, should
Copper coin purity is high, even structure, and its crystal orientation is parallel to line alignment, thus substantially increases the toughness of backing material plate,
Before circuit makes, backing material plate is carried out high-temperature heat treatment simultaneously, make the flexural property of backing material plate again strengthen, from
And it is effectively improved the bending ability of the present invention.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention vehicle-mounted LCDs flex circuit application.
Detailed description of the invention
With specific embodiment, technical solution of the present invention is described further below in conjunction with the accompanying drawings.
As it is shown in figure 1, the vehicle-mounted LCDs flex circuit application of the present invention, longitudinal direction includes left end
Coverlay I2, backing material plate 1 and the coverlay II3 of alignment, coverlay I2, backing material plate 1 and coverlay II3 depend on
Secondary fixing is pasted, and coverlay I2 and coverlay II3 is respectively overlay in the upper and lower surface of backing material plate 1, covers
The length ratio 4: 5 of epiphragma I2 and backing material plate 1, coverlay II3 is 3: 4 with the length ratio of backing material plate 1, covers
Epiphragma I2 and coverlay II3 can be isometric, it is also possible to Length discrepancy, the length ratio of coverlay I2 and coverlay II3
It is 1: 1～16: 15.
The vehicle-mounted LCDs flexibility circuit backing material plate 1 of the present invention is polyimide copper clad lamination, backing material plate 1
Thickness be 125 μm, backing material plate 1 selects the rolled copper foil material of high-purity, even structure so that it is crystal orientation put down
Row, in line alignment, improves the toughness of backing material plate 1, before circuit makes, backing material plate 1 is carried out high temperature simultaneously
Heat treatment, makes Copper Foil flexural property again strengthen, and also eliminates what polyimide film (PI) produced because of the moisture absorption
Shrink and stress, further increase the bending ability of backing material plate 1；Coverlay I2 and coverlay II3 is poly-
Ester resin molding, the thickness of coverlay I2 and coverlay II3 is 9～18 μm, coverlay I2 and coverlay II3 energy
Enough carry out hands weldering or low melting point welding, there is excellent adhesive property and prominent flexibility, alternating bending can be carried out
Fold.Coverlay I2 and coverlay II3 plays the effect of protection backing material plate 1 copper face, it is possible to effectively prevent copper face
Oxidation, dirty etc..
The vehicle-mounted LCDs flex circuit application simple in construction of the present invention, resistance to bending, pressure, heat-resisting, make
Long with convenience, high sensitivity, life-span；Coverlay I2 in structure, backing material plate 1, coverlay II3 all use
Halogen-free material；Pliability height, compact, use flexibly, are conducive to transport warehousing and reduce manufacturing cost.
Obviously, above-described embodiment is only for clearly demonstrating example of the present invention, and is not to this
The restriction of bright embodiment.For those of ordinary skill in the field, on the basis of the above description
Can also make other changes in different forms.Here without also all of embodiment being given
Exhaustive.And the obvious change that these spirit belonging to the present invention are extended out or variation are still in the present invention
Protection domain among.
Claims (4)
1. a vehicle-mounted LCDs flex circuit application, it is characterised in that: include left end on Zong Xiang
Coverlay I, backing material plate and the coverlay II of alignment, described coverlay I, backing material plate and coverlay II are solid successively
Surely pasting, described coverlay I and coverlay II is respectively overlay in the upper and lower surface of backing material plate, described in cover
The length ratio 4: 5 of epiphragma I and backing material plate, described coverlay II is 3: 4 with the length ratio of backing material plate.
Vehicle-mounted LCDs flex circuit application the most according to claim 1, it is characterised in that: institute
Stating backing material plate is polyimide copper clad lamination, and the thickness of described backing material plate is 125 μm.
Vehicle-mounted LCDs flex circuit application the most according to claim 1, it is characterised in that: institute
Stating coverlay I and coverlay II and be polyester resin film, the thickness of described coverlay I and coverlay II is 9～18
μm。
Vehicle-mounted LCDs flex circuit application the most according to claim 1, it is characterised in that: institute
The length ratio stating coverlay I and coverlay II is 1: 1～16: 15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610414245.8A CN105898985A (en) | 2016-06-13 | 2016-06-13 | Flexible circuit board for vehicle-mounted liquid crystal display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610414245.8A CN105898985A (en) | 2016-06-13 | 2016-06-13 | Flexible circuit board for vehicle-mounted liquid crystal display screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105898985A true CN105898985A (en) | 2016-08-24 |
Family
ID=56729451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610414245.8A Pending CN105898985A (en) | 2016-06-13 | 2016-06-13 | Flexible circuit board for vehicle-mounted liquid crystal display screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105898985A (en) |
-
2016
- 2016-06-13 CN CN201610414245.8A patent/CN105898985A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160824 |