CN2927604Y - Flexible printing circuit board against tearing - Google Patents
Flexible printing circuit board against tearing Download PDFInfo
- Publication number
- CN2927604Y CN2927604Y CN 200620034879 CN200620034879U CN2927604Y CN 2927604 Y CN2927604 Y CN 2927604Y CN 200620034879 CN200620034879 CN 200620034879 CN 200620034879 U CN200620034879 U CN 200620034879U CN 2927604 Y CN2927604 Y CN 2927604Y
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- connector
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Abstract
The utility model provides an anti-tear FPC, comprising a main line area for forming a main line, a connector area for setting up a board-to-board connector and a bending area, wherein the bending area is connected between the main line area and the connector area, and the joint between the bending area and the connector area is provided with a width mutation on which a cupped gap facing the interior of the connector area is arranged, the bottom of the gas is in a shape of arc. The utility model enables the width D of the bending area to be equal with that of the connector reinforcing, and reduces the outside force on the joint during the process of being used, thereby the utility model can be effectively avoided being torn.
Description
[technical field]
The utility model relates to FPC (flexible printed wiring board is also referred to as flexible circuit board), especially has the FPC that prevents to tear function.
[background technology]
In recent years, along with the fast development of radio communication, people have had higher requirement to the combination property of mobile phone.Simultaneously, keen competition in the industry makes LCM (TFT LCD MODULE) technology become better and approaching perfection day by day.In order to prolong the useful life of product, improve cost performance, the structural design of optimizing LCM had not only been saved cost but also behave efficiently beyond doubt.
FPC claims " flexible printed wiring board " again, is one of modal assembly in the LCD module.The quality of FPC design directly influences the product yield of entire module, traditional F PC manually is welded on the mainboard by two-sided pad, in order to save operation and to improve the product yield, the application that utilizes the novel FPC that the connector on the dynamic area is connected with mainboard more and more widely.
Here be that example illustrates with common two-sided FPC, as shown in Figure 1,1 is connector area, 2 are the bending district, the 3 road districts that serve as theme, 5 is dynamic area, and 6 is board to board connector, and dynamic area 5 comprises connector area 1 and bending district 2, connector area 1 is used to be provided with board to board connector 6, so that be connected with mainboard, bending district 2 ties that are connected as connector area 1 and main line district 3 are because of the frequent plug of connector, require connector area 1 to have certain intensity, so connector area 1 is general thicker, thus the bending performance of being convenient to of dynamic area 5 just distinguish 2 and embody by bending, this just requires to bend, and to distinguish 2 thickness less, be generally the individual layer wiring board, width is narrower than the width of connector area 1, as shown in Figure 2, distinguishes 2 junction at connector area 1 and bending at least, the width in bending district 2 is narrower than the width of connector area 1, D is bending district 2 width, and E is the width of connector area 1, D＜E.Bending district 2 thickness are between 0.06mm-0.12mm in general, and the thickness in connector area 1 and main line district 3 is between 0.12-0.20.As shown in Figure 3, enough intensity is arranged, generally can increase the thick reinforcement of 0.15mm-0.20mm (Stiffener) layer 7 that is in connector area 1 back side (one side that does not have connector) in order to guarantee board to board connector 6 places.Strengthening course 7 is that flexible circuit board FPC goes up regional area for the soldering part or the hard material that other pressing is got on so that install of gaining in strength.The gross thickness of connector area 1 just can reach 0.27mm-0.40mm, and bending district thickness is generally about 0.08mm, bending district 2 comparatively speaking intensity much smaller than connector area 1, in production and testing process, as shown in Figure 4, because two place's intensity great disparities are added two place's width and are not waited, be easy to cause junction 8 to tear, as shown in Figure 5, cause cabling 11,13,15 to break to form open circuit, cause the FPC yields low.Therefore need improve FPC, make FPC be difficult for tearing.
[summary of the invention]
The problem of easily tearing at above-mentioned FPC, the utility model proposes a kind of anti-flexible print circuit board of tearing, the activity performance of the dynamic area of overslaugh flexible print circuit board neither, can prevent that again dynamic area from tearing because of repeatedly bending, twisting, thereby improve the quality of flexible print circuit board and prolong useful life of flexible print circuit board.
For achieving the above object, the utility model proposes a kind of anti-flexible print circuit board of tearing, comprise the main line district that is used to form main line, connector area and the bending district that is used to be provided with board to board connector, described bending district is connected between main line district and the connector area, and has the width sudden change in the junction of bending district and connector area, the width in bending district less than or greater than the width of connector area, width sudden change place that is connected with connector area in described bending district is provided with the breach to the connector area inner recess, and the bottom of described breach is a circular arc.
Preferably, the bottom of described breach is semicircle.
Further improvement of the utility model is that described breach is extended with first length to connector area inside, and described first length makes the bottom of breach leave safe distance at least between the connector area circuit.
The beneficial effects of the utility model are: the measure that the utility model adopted is in the easily design of tear zone increase circular arc, linking by fillet, reaching bending sector width D equates with connector reinforcement place width, reduced the suffered external force in junction in the use, thereby prevented from effectively to tear.
Feature of the present utility model and advantage will be elaborated in conjunction with the accompanying drawings by embodiment.
[description of drawings]
Fig. 1 is existing FPC structural representation;
Fig. 2 is the applied FPC structural representation of the utility model;
Fig. 3 is the FPC left view that has reinforcement;
Fig. 4 is the FPC upward view that has reinforcement;
Fig. 5 is the existing FPC schematic diagram that damages;
Fig. 6 is the bending district stretching schematic diagram of the utility model embodiment;
Fig. 7 is the vertical view of the utility model embodiment;
Fig. 8 is the upward view of the utility model embodiment.
Among the figure: 1 is connector area, and 2 are bending district, the 3 road districts that serve as theme, and 5 be dynamic area, and 6 is board to board connector, and 7 is reinforcement, and 8 is the junction, and 9 is breach, and 11,13,15 is cabling.
[embodiment]
Because the restriction of whole LCD modular structure, the FPC profile has nothing in common with each other.The utility model mainly be at bending district's 2 width less than or greater than the improvement that FPC did of connector area 1 width, normally the width in bending district 2 is less than the width of connector area 1.Prevent that tearing flexible print circuit board comprises: 1 is connector area; 2 are the bending district; the 3 road districts that serve as theme; 5 is dynamic area; strengthening course 7,6 is board to board connector and protective layer, and dynamic area 5 comprises connector area 1 and bending district 2; here connector area 1 is meant the plate body part that is used to be provided with board to board connector 6 on it, is generally double-deck wiring board.Main line district 3 is meant the plate body part that is used to form main line, can be double-deck wiring board, also can be single-layer wire road plate.Bending district 2 is meant the easy bending that is connected between connector area 1 and the main line district 3, the plate body part of distortion, is the individual layer wiring board, and in the junction of bending district 2 and connector area 1, the width in bending district 2 is less than the width of connector area 1.As shown in Figure 5, the position of very easily tearing is in the connector area 1 of FPC and the junction 8 in bending district 2, the fracture that will cause cabling 11,13,15 is torn in junction 8, so that influence the performance of entire module, so application of the present utility model also is to be primarily aimed at this place to improve.
The measure that the utility model adopted is exactly to be provided with breach to connector area 1 inner recess in 2 width sudden changes place that are connected with connector area 1 of bending district, and the bottom of breach is a circular arc.
Preferred embodiment as shown in Figure 6, to bend district 2 earlier stretches to connector area 1 direction, length is F (F sight path plate cabling situation is decided), as shown in Figure 7, fillet (being semi arch) v notch v 9 180 ° of junction 8 processing of easily tearing after stretching is connected bending district 2 and connector area 1, so just reduced the stress that acts on junction 8 that brought in the use of board to board connector 6, lear energy is better.As shown in Figure 8, the width D in bending district 2 equates with the reinforcement 7 width E ' of place of connector area 1, thereby prevents from effectively to tear.Here to control semicircle breach 9 to connector area 1 inner length of extending, guarantee that the bottom of breach 9 remains with enough safe distances between the connector area circuit, in order to avoid circuit ruptures.Breach 9 makes both to strengthen lear energy to the connector area 1 inner hard choose reasonable of length F of extending, and can guarantee that again connector area 1 internal wiring is not damaged.
Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field; under the prerequisite that does not break away from the utility model design; can also make some simple deduction or replace, all should be considered as belonging to the scope of patent protection that the utility model is determined by claims of being submitted to.
Claims (3)
1. prevent tearing flexible print circuit board for one kind, comprise: be used to form the main line district of main line, the connector area that is used to be provided with board to board connector and bending district, described bending district is connected between main line district and the connector area, and has the width sudden change in the junction of bending district and connector area, it is characterized in that: width sudden change place that is connected with connector area in described bending district is provided with the breach to the connector area inner recess, and the bottom of described breach is a circular arc.
2. as claimed in claim 1ly anti-tear flexible print circuit board, it is characterized in that: the bottom of described breach is for semicircle.
3. as claimed in claim 1 or 2ly anti-tear flexible print circuit board, it is characterized in that: described breach is extended with first length to connector area inside, and described first length makes the bottom of breach leave safe distance at least between the connector area circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620034879 CN2927604Y (en) | 2006-07-04 | 2006-07-04 | Flexible printing circuit board against tearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620034879 CN2927604Y (en) | 2006-07-04 | 2006-07-04 | Flexible printing circuit board against tearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2927604Y true CN2927604Y (en) | 2007-07-25 |
Family
ID=38281858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620034879 Expired - Lifetime CN2927604Y (en) | 2006-07-04 | 2006-07-04 | Flexible printing circuit board against tearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2927604Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8305514B2 (en) | 2008-04-11 | 2012-11-06 | E Ink Holdings Inc. | Flexible display apparatus |
| CN103025053A (en) * | 2012-12-24 | 2013-04-03 | 广东欧珀移动通信有限公司 | Break-proof structure of flexible printed circuit board, application of break-proof structure, and flexible printed circuit board with break-proof structure |
| CN104582249A (en) * | 2014-12-26 | 2015-04-29 | 惠州Tcl移动通信有限公司 | Flexible printed circuit board assembly and electronic device thereof |
| CN104932693A (en) * | 2015-06-25 | 2015-09-23 | 苏州达方电子有限公司 | Peripheral device |
| CN105142342A (en) * | 2015-08-29 | 2015-12-09 | 歌尔声学股份有限公司 | Camera module group flexible plate protection layer manufacturing method and camera module group flexible plate protection layer |
| CN105988616A (en) * | 2015-02-09 | 2016-10-05 | 宸鸿科技(厦门)有限公司 | Touch control panel |
| CN108564886A (en) * | 2018-01-25 | 2018-09-21 | 上海天马微电子有限公司 | Display panel and display device |
-
2006
- 2006-07-04 CN CN 200620034879 patent/CN2927604Y/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8305514B2 (en) | 2008-04-11 | 2012-11-06 | E Ink Holdings Inc. | Flexible display apparatus |
| CN103025053A (en) * | 2012-12-24 | 2013-04-03 | 广东欧珀移动通信有限公司 | Break-proof structure of flexible printed circuit board, application of break-proof structure, and flexible printed circuit board with break-proof structure |
| CN103025053B (en) * | 2012-12-24 | 2016-08-03 | 广东欧珀移动通信有限公司 | The anti-fracture structure of flexible circuit board and application, the flexible circuit board of configuration |
| CN104582249A (en) * | 2014-12-26 | 2015-04-29 | 惠州Tcl移动通信有限公司 | Flexible printed circuit board assembly and electronic device thereof |
| CN104582249B (en) * | 2014-12-26 | 2017-10-24 | 惠州Tcl移动通信有限公司 | A kind of flexible print circuit board component and its electronic equipment |
| CN105988616A (en) * | 2015-02-09 | 2016-10-05 | 宸鸿科技(厦门)有限公司 | Touch control panel |
| CN104932693A (en) * | 2015-06-25 | 2015-09-23 | 苏州达方电子有限公司 | Peripheral device |
| CN104932693B (en) * | 2015-06-25 | 2018-04-17 | 苏州达方电子有限公司 | Peripheral device |
| CN105142342A (en) * | 2015-08-29 | 2015-12-09 | 歌尔声学股份有限公司 | Camera module group flexible plate protection layer manufacturing method and camera module group flexible plate protection layer |
| CN105142342B (en) * | 2015-08-29 | 2017-12-26 | 歌尔股份有限公司 | A kind of camera module soft board protection layer making method and camera module soft board protective layer |
| CN108564886A (en) * | 2018-01-25 | 2018-09-21 | 上海天马微电子有限公司 | Display panel and display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN BYD ELECTRONIC COMPONENT CO., LTD. Free format text: FORMER OWNER: BIYADI CO., LTD. Effective date: 20150901 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150901 Address after: 518119 Guangdong province Shenzhen City Dapeng new Kwai town Yanan Road No. 1 building experimental Byd Co Patentee after: Shenzhen BYD Electronic Component Co., Ltd. Address before: Kwai Chung town Yanan Road, BYD Industrial Park in Longgang District of Shenzhen City, Guangdong province 518119 Patentee before: Biyadi Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070725 |
|
| EXPY | Termination of patent right or utility model |