CN205563016U - Liquid crystal display module and flexible circuit board thereof - Google Patents
Liquid crystal display module and flexible circuit board thereof Download PDFInfo
- Publication number
- CN205563016U CN205563016U CN201620134051.8U CN201620134051U CN205563016U CN 205563016 U CN205563016 U CN 205563016U CN 201620134051 U CN201620134051 U CN 201620134051U CN 205563016 U CN205563016 U CN 205563016U
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- Prior art keywords
- pad
- protective layer
- flexible pcb
- breach
- pads
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- Expired - Fee Related
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 20
- 239000011241 protective layer Substances 0.000 claims abstract description 33
- 239000002245 particle Substances 0.000 claims abstract description 17
- 239000010410 layer Substances 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 238000000151 deposition Methods 0.000 claims description 3
- 238000007373 indentation Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 239000004952 Polyamide Substances 0.000 claims 1
- 229920002647 polyamide Polymers 0.000 claims 1
- 239000011347 resin Substances 0.000 abstract 2
- 229920005989 resin Polymers 0.000 abstract 2
- RKUAZJIXKHPFRK-UHFFFAOYSA-N 1,3,5-trichloro-2-(2,4-dichlorophenyl)benzene Chemical compound ClC1=CC(Cl)=CC=C1C1=C(Cl)C=C(Cl)C=C1Cl RKUAZJIXKHPFRK-UHFFFAOYSA-N 0.000 description 9
- 239000011230 binding agent Substances 0.000 description 4
- 239000004642 Polyimide Substances 0.000 description 3
- 229920001721 polyimide Polymers 0.000 description 3
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Liquid Crystal (AREA)
- Non-Metallic Protective Coatings For Printed Circuits (AREA)
Abstract
The utility model relates to a flexible circuit board, include: the mainboard body is for the sheet structure of flexibility, a plurality of pads, interval set up in on the side of the mainboard body, the protective layer, set up in the mainboard body is equipped with on the side of pad, the protective layer part covers a plurality ofly the pad, just the edge of protective layer is adjacent two set up the breach of the conducting particles that is used for the different side's nature conducting resin of deposit between the pad, adjacent two the mainboard body between the pad passes through the breach is exposed. Still provide simultaneously a liquid crystal display module who uses this flexible circuit board. Among the above -mentioned liquid crystal display module and flexible circuit board thereof, set up the breach on the edge through the protective layer at two adjacent pad intervals for when overlaying, conducting particles in the different square conducting resin can move along the breach of protective layer, and in getting into the breach, avoids piling up and resulting in two adjacent pads or two short circuits that adjacent ITO circuit led to the fact in the edge of protective layer.
Description
Technical field
The utility model relates to electronics field, particularly relates to liquid crystal display module and flexible PCB thereof.
Background technology
Liquid crystal display module (LCM, LCD Module), refers to liquid crystal display device, connector, control
The assembly that peripheral circuit PCB, backlight, the structural members etc. such as system and driving are assembled together.At present,
Along with society development, the liquid crystal display module of small-medium size have been widely used for mobile phone, MP3, MP4,
Digital camera, DV, DPF, game machine, learning machine, GPS, Vehicular display device, palm
In the multimedia video product such as computer, portable television.
Liquid crystal display module mainly by: LCDs (LCD), integrated chip (IC), polaroid (POL),
Flexible PCB (FPC) and backlight (BLU) composition.Flexible PCB has distribution density height, weight
Gently, the feature that thickness is thin.It is mainly used in mobile phone, notebook computer, palm PC, digital camera,
On a lot of product such as liquid crystal display module, play circuit connection function.
In traditional liquid crystal display module, flexible PCB with the main connected mode of LCDs is: soft
Property circuit board correspondence position etching dew copper cash (PAD), LCDs correspondence position sputter ITO circuit, so
Connected by different square conducting resinl (ACF) afterwards, through certain temperature and pressure, both are forced together.
But, the conducting particles owing to different square conducting resinl is g., jelly-like, when overlaying, within different square conducting resinl
Can flow to lower, cause conducting particles to be deposited in the edge of flexible PCB protective layer, cause flexible circuit
Short circuit or the ITO line short of LCDs between adjacent two PAD of plate.
Utility model content
Based on this, it is provided that a kind of flexible PCB being prevented from short circuit, meanwhile, also providing for a kind of use should
The liquid crystal display module of flexible PCB.
A kind of flexible PCB, including:
Mainboard body, for flexible laminated structure；
Multiple pads, are arranged at intervals on the one side of described mainboard body；
Protective layer, is arranged at described mainboard body and is provided with on the side of described pad, and described protective layer part covers
Multiple described pads, and the edge of described protective layer offers for depositing between adjacent two described pads
The breach of the conducting particles of anisotropic conductive, the mainboard body between adjacent two described pads is lacked by described
Mouth is exposed.
Wherein in an embodiment, described pad is list structure, and multiple described pads are spaced and set side by side
Put.
Wherein in an embodiment, described pad is copper cash.
Wherein in an embodiment, described protective layer includes that part covers the covering part of described pad, described
Covering part is consistent with the quantity of pad, and multiple described covering parts are covered each by multiple described pad, described scarce
Mouth is arranged alternately with described covering part.
Wherein in an embodiment, described covering part is rectangular strip structure.
Wherein in an embodiment, described breach is rectangular indentation.
Wherein in an embodiment, described protective layer is polyimide layer.
A kind of liquid crystal display module, including above-mentioned flexible PCB.
Wherein in an embodiment, also include:
LCDs, described LCDs is provided with ITO circuit；
Different square conducting resinl, the pad of described flexible PCB is by described different square conducting resinl and described ITO
Line electricity connects.
In above-mentioned liquid crystal display module and flexible PCB thereof, by the protection at adjacent two pad intervals
Breach is offered so that when overlaying, the conducting particles in different square conducting resinl can be along guarantor on the edge of layer
The breach of sheath moves, and enters in breach, it is to avoid protective layer edge pile up and cause two adjacent
Pad or the short circuit that causes of two adjacent ITO circuits.
Accompanying drawing explanation
In order to be illustrated more clearly that the utility model embodiment or technical scheme of the prior art, below by right
In embodiment or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that below,
Accompanying drawing in description is only embodiments more of the present utility model, for those of ordinary skill in the art,
On the premise of not paying creative work, it is also possible to obtain the accompanying drawing of other embodiments according to these accompanying drawings.
Fig. 1 is the local structural graph of flexible PCB in the utility model one embodiment；
Fig. 2 is the signal that flexible PCB shown in Fig. 1 is connected with LCDs by different square conducting resinl
Figure；
Fig. 3 is the partial schematic diagram during laminating of flexible PCB shown in Fig. 1.
Detailed description of the invention
For the ease of understanding the utility model, below with reference to relevant drawings, the utility model is carried out more comprehensively
Description.Accompanying drawing gives better embodiment of the present utility model.But, the utility model can be with
Many different forms realize, however it is not limited to embodiments described herein.On the contrary, provide these
The purpose of embodiment be make disclosure of the present utility model is understood more thorough comprehensively.
It should be noted that when element is referred to as " being fixed on " another element, and it can be directly at another
On individual element or element placed in the middle can also be there is.When an element is considered as " connection " another yuan
Part, it can be directly to another element or may be simultaneously present centering elements.Used herein
Term " vertical ", " level ", "left", "right" and similar statement simply to illustrate that mesh
, being not offered as is unique embodiment.
Unless otherwise defined, all of technology used herein and scientific terminology with belong to of the present utility model
The implication that those skilled in the art are generally understood that is identical.Institute in specification of the present utility model herein
The term used is intended merely to describe the purpose of specific embodiment, it is not intended that in limiting the utility model.
Term as used herein " and/or " include the arbitrary and all of one or more relevant Listed Items
Combination.
Seeing also Fig. 1 and Fig. 2, the flexible PCB 100 in the utility model one embodiment, including main
Plate body 110, multiple pad 130 and protective layer 150.
Mainboard body 110 is flexible laminated structure.Multiple pads 130 are arranged at intervals at the one of mainboard body 110
On side.Flexible PCB 100 is electrically connected with LCDs 200 by pad 130 thereon.Specifically
, LCDs 200 is provided with ITO circuit 210, and the pad 130 of flexible PCB 100 is by different side
Shape conducting resinl 300 electrically connects with ITO circuit 210.Specifically operation time, certain temperature and pressure it
Under, the pad 130 of flexible PCB 100 is overlayed with ITO circuit 210 by different square conducting resinl 300
Together.
Different square conducting resinl 300 includes binder 310 and the conducting particles 330 being dispersed in binder 310.
The conducting principle of different square conducting resinl 300 is: at ordinary times, and conducting particles 330 is uniform in binder 310
Distribution, is not in contact with each other between conducting particles 330, and there is one layer of dielectric film (not shown) and be spaced.When
After different square conducting resinl 300 is pressurizeed, heated, dielectric film can rupture, and conducting particles 330 exists mutually
The place that pad 130, ITO circuit 210 etc. highlight presses together, and then conducting.Further, conducting particles
330 after hot pressing, original sphere become similar round pie, and then considerably increase conductive contact surfaces
Long-pending.Heating makes binder 310 solidify, and can keep the conducting state of different square conducting resinl 300.
But, different square conducting resinl 300 substantially g., jelly-like, wherein internal conducting particles 330 number is general
It is 8000/cubic centimetre.When overlaying, particle can flow to lower, causes flexible PCB 100
Adjacent two pad 130 between short circuit or LCDs 200 ITO circuit 210 short circuit.
Concrete, protective layer 150 is arranged at mainboard body 110 and is provided with on the side of pad 130.Protective layer 150
Part covers multiple pad 130.The edge of protective layer 150 offers breach between adjacent two pads 130
152, breach 152 is for depositing the conducting particles 330 of anisotropic conductive.Between adjacent two pads 130
Mainboard body 110 exposed by breach 152, i.e. there is the place of pad 130 and be provided with protective layer 150 and enter
Row protection, and exposed out in the place not having conducting wire, and protective layer 150 forms breach 152.
See also Fig. 3, in above-mentioned flexible PCB 100, by adjacent two pad 130 intervals
Protective layer 150 edge on offer breach 152 so that when overlaying, leading in different square conducting resinl 300
Charged particle 330 can move along the breach 152 of protective layer 150, and enters in breach 152, it is to avoid
The edge of protective layer 150 piles up and causes two adjacent pads 130 or two adjacent ITO circuits 210
The short circuit caused.
The most in the present embodiment, pad 130 is list structure, and multiple pads 130 are spaced and are arranged side by side.
Pad 130 can be copper cash.It is appreciated that pad 130 is alternatively other conductive material and makes, is not limited to copper
Line.
Protective layer 150 includes that part covers the covering part 154 of pad 130.Covering part 154 and pad 130
Quantity is consistent, and multiple covering parts 154 are covered each by multiple pad 130, and breach 152 is handed over covering part 154
For arranging.
Concrete, covering part 154 is rectangular strip structure, and breach 152 is rectangular indentation 152, so that protection
Layer 150 is used for the structure protecting the side of pad 130 to form substantially city wall shape.Protective layer 150 specifically may be used
For polyimide layer.It is appreciated that protective layer 150 also can be made up of other material, is not limited to polyimides.
Meanwhile, the utility model additionally provides a kind of liquid crystal display module, and this liquid crystal display module uses above-mentioned
Flexible PCB 100.
The most in the present embodiment, liquid crystal display module also includes LCDs 200 and different square conducting resinl
300.LCDs 200 is provided with ITO circuit 210.The pad 130 of flexible PCB 100 is by different
Square conducting resinl 300 electrically connects with ITO circuit 210.
In above-mentioned liquid crystal display module and flexible PCB 100 thereof, by being spaced at adjacent two pads 130
Breach 152 is offered so that when overlaying, in different square conducting resinl 300 on the edge of the protective layer 150 at place
Conducting particles 330 can move along the breach 152 of protective layer 150, and enters in breach 152, it is to avoid
Edge at protective layer 150 piles up and causes two adjacent pads 130 or two adjacent ITO circuits
210 short circuits caused.
Each technical characteristic of embodiment described above can combine arbitrarily, for making description succinct, the most right
The all possible combination of each technical characteristic in above-described embodiment is all described, but, if these skills
There is not contradiction in the combination of art feature, is all considered to be the scope that this specification is recorded.
Embodiment described above only have expressed several embodiments of the present utility model, its describe more concrete and
In detail, but therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that, it is right
For those of ordinary skill in the art, without departing from the concept of the premise utility, it is also possible to do
Going out some deformation and improvement, these broadly fall into protection domain of the present utility model.Therefore, the utility model is special
The protection domain of profit should be as the criterion with claims.
Claims (9)
1. a flexible PCB, it is characterised in that including:
Mainboard body, for flexible laminated structure；
Multiple pads, are arranged at intervals on the one side of described mainboard body；And
Protective layer, is arranged at described mainboard body and is provided with on the side of described pad, and described protective layer part covers
Multiple described pads, and the edge of described protective layer offers for depositing between adjacent two described pads
The breach of the conducting particles of anisotropic conductive, the mainboard body between adjacent two described pads is lacked by described
Mouth is exposed.
Flexible PCB the most according to claim 1, it is characterised in that described pad is list structure,
Multiple described pads are spaced and are arranged side by side.
Flexible PCB the most according to claim 2, it is characterised in that described pad is copper cash.
Flexible PCB the most according to claim 2, it is characterised in that described protective layer includes part
Covering the covering part of described pad, described covering part is consistent with the quantity of pad, multiple described covering parts
Not covering multiple described pad, described breach is arranged alternately with described covering part.
Flexible PCB the most according to claim 4, it is characterised in that described covering part is rectangular strip
Shape structure.
Flexible PCB the most according to claim 5, it is characterised in that described breach is rectangular indentation.
Flexible PCB the most according to claim 1, it is characterised in that described protective layer is that polyamides is sub-
Amine layer.
8. a liquid crystal display module, it is characterised in that include as appointed in claim 1 to claim 7
Anticipate a described flexible PCB.
Liquid crystal display module the most according to claim 1, it is characterised in that also include:
LCDs, described LCDs is provided with ITO circuit；
Different square conducting resinl, the pad of described flexible PCB is by described different square conducting resinl and described ITO
Line electricity connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620134051.8U CN205563016U (en) | 2016-02-22 | 2016-02-22 | Liquid crystal display module and flexible circuit board thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620134051.8U CN205563016U (en) | 2016-02-22 | 2016-02-22 | Liquid crystal display module and flexible circuit board thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205563016U true CN205563016U (en) | 2016-09-07 |
Family
ID=56818660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620134051.8U Expired - Fee Related CN205563016U (en) | 2016-02-22 | 2016-02-22 | Liquid crystal display module and flexible circuit board thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205563016U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106773194A (en) * | 2016-12-30 | 2017-05-31 | 深圳市华星光电技术有限公司 | A kind of circuit substrate and display device |
| CN107919067A (en) * | 2016-10-06 | 2018-04-17 | 三星显示有限公司 | Flat-panel monitor |
| CN110825268A (en) * | 2019-11-12 | 2020-02-21 | 业成科技（成都）有限公司 | Touch module, touch display device and electronic equipment |
| CN113261392A (en) * | 2019-03-21 | 2021-08-13 | 深圳市柔宇科技股份有限公司 | Electric connection assembly, electronic equipment and preparation method of electric connection assembly |
-
2016
- 2016-02-22 CN CN201620134051.8U patent/CN205563016U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107919067A (en) * | 2016-10-06 | 2018-04-17 | 三星显示有限公司 | Flat-panel monitor |
| CN106773194A (en) * | 2016-12-30 | 2017-05-31 | 深圳市华星光电技术有限公司 | A kind of circuit substrate and display device |
| CN113261392A (en) * | 2019-03-21 | 2021-08-13 | 深圳市柔宇科技股份有限公司 | Electric connection assembly, electronic equipment and preparation method of electric connection assembly |
| CN110825268A (en) * | 2019-11-12 | 2020-02-21 | 业成科技（成都）有限公司 | Touch module, touch display device and electronic equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 516000 Guangdong province Huizhou Zhongkai hi tech Development Zone No. 23 District Patentee after: CHINA DISPLAY OPTOELECTRONICS TECHNOLOGY (HUIZHOU) Co.,Ltd. Address before: 516000 Guangdong province Huizhou Zhongkai hi tech Development Zone No. 23 District Patentee before: TCL DISPLAY TECHNOLOGY (HUIZHOU) Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160907 |