CN104378911B - A kind of improved mobile phone display screen FPC - Google Patents
A kind of improved mobile phone display screen FPC Download PDFInfo
- Publication number
- CN104378911B CN104378911B CN201410703443.7A CN201410703443A CN104378911B CN 104378911 B CN104378911 B CN 104378911B CN 201410703443 A CN201410703443 A CN 201410703443A CN 104378911 B CN104378911 B CN 104378911B
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- crack
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- bent area
- mobile phone
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Abstract
The invention reside in provide a kind of improved mobile phone display screen FPC, including flexible base board and bent area, the part for not having cabling in the bent area sets crack area, described crack area is the round rectangle region delimited on bent area by groove, do not hollowed out in described crack area and some cracks are only set in described round rectangle, the arc connecting portion of bent area both sides and flexible base board is coated with nylon 12 layer, the present invention is simple and practical, vacancy section has been abandoned by the setting in crack area, so that grafting allows to repeat, transfer to greatly facilitate the production of FPC using coating nylon 12 layer without using reinforcement in addition.
Description
Technical field
The present invention relates to wiring board techniques field, more particularly to a kind of mobile phone display screen FPC.
Background technology
Flexible printed circuit board（FPC）For connecting mobile phone display screen and mainboard, circuit turn-on is realized, it is desirable to which circuit board has
The soft performance of standby material.The individual layer bent area of current wiring board, it need to curve it and be put into when being connected with mobile phone, it is traditional
Bounce-back stress occurs in flexible printed circuit board individual layer bent area after bending, and this stress can make flexible printed circuit board in group
Arched upward during dress so that mobile phone display screen comes off with backlight black and white glue, causes mobile phone display screen dysfunction.
Current state-of-the-art technology be by there is no the part of cabling hollow out in individual layer bent area to be formed rectangle or
The arc connecting portion of oval vacancy section, individual layer bent area both sides and flexible base board is respectively provided with arc reinforcement, adds so as to reach
Strong FPC intensity and the effect for reducing bounce-back stress.
But found in practice, the process of technical scheme implantation reinforcement is relatively complicated, adds labor intensity,
The setting of other vacancy section reduces elastic stress, but is also connect simultaneously because of the reduction of connection area and reduce its connection work
With bent area may be pulled apart when needing to extract the FPC after grafting.
The content of the invention
In view of the shortcomings of the prior art, the invention reside in providing, a kind of vacancy section has tensile capacity and arc connecting portion is not
Use the FPC of reinforcement.
To achieve the above object, the technical scheme is that：
A kind of improved mobile phone display screen FPC, including flexible base board and bent area, it is characterised in that described
The part for not having cabling in bent area sets crack area, and described crack area is the round rectangle delimited on bent area by groove
Region, the effect of groove are easy for distinguishing the region for needing to manufacture crack, not hollowed out only in described circle in described crack area
Some cracks are set in angular moment shape, described crack is parallel with the left and right sides of bent area and each rounded rectangle in crack,
It is that the region that will be joined together originally is laterally cut off longitudinal direction and is still connected that it, which is acted on, bent area both sides stress when such grafting
When crack between space can prevent bent area from arching upward, and when extracting, the crack area of longitudinal stress can't because of stress and
There is situation about tearing；
Arc connecting portion at left and right sides of bent area with flexible base board is coated with nylon 12 layer, due to coated in
Arc connecting portion, so grafting operation can't be influenceed, nylon 12 has very strong ductility in addition, can protect during bending
Shield arc connecting portion occurs without crack.
The quantity and area in the crack area can be configured according to the remaining area after actual cabling, and in bent area left and right
No more than 30%, the area of all slits is added no more than bent area area quantity and the area difference in two-part crack
35%, crack area can weaken the intensity of original substrate, should be restricted and set should be as far as possible uniform so setting.
Beneficial effects of the present invention are：The present invention is simple and practical, and vacancy section has been abandoned by the setting in crack area so that inserts
Connecing allows to repeat, and transfers to greatly facilitate FPC using coating nylon 12 layer in addition without using reinforcement
Production.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation in crack area of the present invention.
In figure：1- flexible base boards, 2- bent areas, 3- arcs connecting portion, 4- cracks area, 41- cracks.
Embodiment
The embodiment of the present invention is described in further detail below in conjunction with the accompanying drawings.
As depicted in figs. 1 and 2, a kind of improved mobile phone display screen FPC, including flexible base board 1 and bent area
2。
The part for not having cabling in the bent area 2 sets crack area 4, the described generally round rectangle of crack area 4, institute
Do not hollowed out in the crack area stated and some cracks 41 are only set in described round rectangle, the left side in described crack 41 and bent area
Right both sides are parallel and each rounded rectangle in crack 41, and it is that longitudinal direction is laterally cut off still in the region that will be joined together originally that it, which is acted on,
So it is connected, space when such grafting during the stress of bent area both sides between crack can prevent bent area from arching upward, and extract
When, situation about tearing can't occur because of stress in the crack area of longitudinal stress；
The left and right sides of bent area 2 and the arc connecting portion 3 of flexible base board 1 are coated with nylon 12 layer, due to applying
Arc connecting portion is overlayed on, so grafting operation can't be influenceed, nylon 12 has very strong ductility in addition, during bending
Arc connecting portion can be protected to occur without crack.
The quantity and area in the crack area 4 can be configured according to the remaining area after actual cabling, left in bent area
No more than 30%, the area of all slits is added no more than bent area the quantity and area difference in right two-part crack 41
The 35% of area, crack area can weaken the intensity of original substrate, should be restricted and set should be as far as possible uniform so setting.
Merely illustrating the principles of the invention described in above-described embodiment and specification and most preferred embodiment, this is not being departed from
On the premise of spirit and scope, various changes and modifications of the present invention are possible, and these changes and improvements both fall within requirement and protected
In the scope of the invention of shield.
Claims (2)
1. a kind of improved mobile phone display screen FPC, including flexible base board and bent area, it is characterised in that described curved
The part for not having cabling in folding area sets crack area, and described crack area is the round rectangle area delimited on bent area by groove
Domain, do not hollow out in described crack area and some cracks are only set in described round rectangle, described crack and bent area
The left and right sides is parallel and each rounded rectangle in crack, is coated with left and right sides of bent area with the arc connecting portion of flexible base board
There is nylon 12 layer.
A kind of 2. improved mobile phone display screen FPC according to claim 1, it is characterised in that：The crack area
Quantity and area be configured according to the remaining area after actual cabling, in bent area the quantity in the two-part crack in left and right and
Area difference is no more than 30%, and the area of all slits is added 35% no more than bent area area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410703443.7A CN104378911B (en) | 2014-11-26 | 2014-11-26 | A kind of improved mobile phone display screen FPC |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410703443.7A CN104378911B (en) | 2014-11-26 | 2014-11-26 | A kind of improved mobile phone display screen FPC |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104378911A CN104378911A (en) | 2015-02-25 |
| CN104378911B true CN104378911B (en) | 2018-01-09 |
Family
ID=52557469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410703443.7A Expired - Fee Related CN104378911B (en) | 2014-11-26 | 2014-11-26 | A kind of improved mobile phone display screen FPC |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104378911B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106211551A (en) * | 2016-07-27 | 2016-12-07 | 京东方科技集团股份有限公司 | A kind of flexible PCB and preparation method thereof, display module |
| TWI687137B (en) * | 2018-01-05 | 2020-03-01 | 易華電子股份有限公司 | Soft circuit board with a reduced rebounding force |
| CN110072328B (en) * | 2019-04-01 | 2020-07-17 | 友达光电（苏州）有限公司 | Flexible circuit board |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202018547U (en) * | 2011-04-15 | 2011-10-26 | Tcl显示科技（惠州）有限公司 | Main flexible printed circuit for liquid crystal display module |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6433414B2 (en) * | 2000-01-26 | 2002-08-13 | Casio Computer Co., Ltd. | Method of manufacturing flexible wiring board |
| JP2001237280A (en) * | 2000-02-22 | 2001-08-31 | Nec Corp | Tape carrier type semiconductor device and flexible film connection board |
| JP4072493B2 (en) * | 2003-11-14 | 2008-04-09 | Ｎｅｃ液晶テクノロジー株式会社 | Substrate module and liquid crystal module |
| CN1819743A (en) * | 2004-12-16 | 2006-08-16 | 三井金属矿业株式会社 | Flexible printed wiring board |
| CN101448358B (en) * | 2007-11-28 | 2011-07-20 | 胜华科技股份有限公司 | Bending region structure of flexible printed circuit board |
| CN201234403Y (en) * | 2008-06-27 | 2009-05-06 | 比亚迪股份有限公司 | Flexible printed circuit board and mobile phone using the same |
| CN201657484U (en) * | 2010-01-28 | 2010-11-24 | 比亚迪股份有限公司 | Bend-resistant flexible circuit board |
| CN202693946U (en) * | 2012-05-25 | 2013-01-23 | Tcl显示科技（惠州）有限公司 | Cell phone and liquid crystal display module with KEY-light-emitting diode (LED) |
| CN103927039B (en) * | 2013-06-19 | 2017-06-27 | 上海天马微电子有限公司 | Flexible PCB, touch pad and the display with touch function |
| CN203368913U (en) * | 2013-07-11 | 2013-12-25 | 昆山龙腾光电有限公司 | Flexible printed circuit |
| CN203708623U (en) * | 2014-01-22 | 2014-07-09 | 河源中光电通讯技术有限公司 | FPC single-layer bending region structure |
-
2014
- 2014-11-26 CN CN201410703443.7A patent/CN104378911B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202018547U (en) * | 2011-04-15 | 2011-10-26 | Tcl显示科技（惠州）有限公司 | Main flexible printed circuit for liquid crystal display module |
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| Publication number | Publication date |
|---|---|
| CN104378911A (en) | 2015-02-25 |
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Granted publication date: 20180109 Termination date: 20211126 |
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| CF01 | Termination of patent right due to non-payment of annual fee |