CN2785311Y - Flexible printing circuit board and LCD - Google Patents
Flexible printing circuit board and LCD Download PDFInfo
- Publication number
- CN2785311Y CN2785311Y CN 200520033206 CN200520033206U CN2785311Y CN 2785311 Y CN2785311 Y CN 2785311Y CN 200520033206 CN200520033206 CN 200520033206 CN 200520033206 U CN200520033206 U CN 200520033206U CN 2785311 Y CN2785311 Y CN 2785311Y
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- Prior art keywords
- circuit board
- functional pin
- redundant
- pad
- flexible print
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Abstract
The utility model discloses a flexible printed circuit board. The utility model comprises flexible circuit board base material and function leading wires, wherein the function leading wires are manufactured on the flexible circuit board base material, both ends of each function leading wire are connected with other components, and all the function leading wires form a function leading wire group; besides, the outer side of cabling of both ends of the function leading wire group is provided with one ore more than one redundant welding disk. By means of the redundant design of the flexible printed circuit board FPC, when external stress is exerted, the redundant welding disks which are used as redundant design are firstly impacted, the inner function leading wires are protected, and thus the connection reliability between the FPC and other boards is enhanced; meanwhile, the integral reliability of products is enhanced, the service performance of the products is ensured.
Description
[technical field]
The utility model relates to a kind of flexible print circuit board, as the connection carrier of the display panel and the external circuit of LCD.
[background technology]
Usually, LCD mainly comprises LCD panel and printed circuit board (PCB), LCD panel generally is connected to the master with FPC (flexible print circuit board) with the connection carrier of the printed circuit board (PCB) of outside, be manufactured with functional pin on the base material of FPC, the two ends of functional pin are connected with circuit board with LCD panel respectively.The glass end of FPC and LCD panel cohere general employing ACF (anisotropy conductiving glue), ACF is a kind of membranaceous solid material, when the condition that adopts certain temperature and pressure, ACF can solidify in the regular hour, and FPC and glass substrate are bonded together.The other end that FPC connects adopts mode and other circuit boards of welding to link together, and certain also mode of useful connector is owing to the low main mode that becomes connection of cost of welding.
Because product is subjected to factor affecting such as activity, vibrations and environmental change in crimping, welding and assembling and use, so the firm degree that FPC combines with other sheet materials at two ends is just very crucial.
General design, lead-in wire on the FPC base material all is the lead-in wire with actual functional capability, simultaneously because the lead-in wire outside is exactly empty FPC base material, like this when external stress, stress will directly affact on the lead-in wire with function, and the outermost lead-in wire of FPC will stand in the breach and be subjected to the effect of stress.Such as in the manual welding process, because welding gimmick problem will cause the lead-in wire of at first welding will be very easy to break; At the outermost lead-in wire that coheres the position of FPC and glass, because stress or environmental change, will at first cause lead-in wire and glass to throw off or fracture.The failure rate of the integral body of LCD is improved, reduced the reliability of LCD.
[summary of the invention]
Main purpose of the present utility model is exactly in order to solve the problems of the prior art, and a kind of flexible print circuit board is provided, and improves the connection reliability of flexible print circuit board and other sheet materials.
Another purpose of the present utility model is exactly in order to solve the problems of the prior art, and a kind of LCD is provided, and has reduced the failure rate of flexible print circuit board wherein, thereby has improved the LCD whole reliability.
For achieving the above object, a kind of flexible print circuit board that the utility model proposes, comprise flexible print circuit board base material and the functional pin that is made on the base material, the two ends of described functional pin are used to connect miscellaneous part, the all functions lead wire set becomes the functional pin group, also respectively is manufactured with one or more redundant pad in the cabling outside at the two ends of functional pin group.
For achieving the above object, a kind of LCD that the utility model proposes, comprise LCD panel, circuit board and flexible print circuit board, the two ends of described flexible print circuit board connect the substrate and the circuit board of LCD panel respectively, described flexible print circuit board comprises flexible print circuit board base material and the functional pin that is made on the base material, the two ends of described functional pin are used to connect miscellaneous part, the all functions lead wire set becomes the functional pin group, the cabling outside at the two ends of functional pin group also respectively is manufactured with one or more redundant pad, also is manufactured with position and shape corresponding second redundant pad and the triple redundance pad with the first redundant pad on the substrate of LCD panel and circuit board.
Above-mentioned redundant pad can cohere two parts or weld together, but it does not have the effect of conduction, and promptly these redundant pads are some vacant pads.
The beneficial effects of the utility model are: by the Redundancy Design to flexible print circuit board FPC; when external stress; what at first impacted is the redundant pad of these Redundancy Design; these redundant pads are exactly an overcoat; protected inner functional pin; thereby improve the connection reliability of FPC and other sheet materials; comprise with LCD panel adopt reliability that ACF coheres and with other sheet material welding reliability; and then also improved the LCD whole reliability, guaranteed the serviceability of product.
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 the structural representation of a kind of embodiment of the present utility model;
Fig. 2 is the structural representation of another embodiment of the present utility model.
[embodiment]
Specific embodiment one, as shown in Figure 1, flexible print circuit board 1 comprise base material and be made in functional pin group 11 and redundant pad 12 on the base material, and functional pin group 11 is made up of all functions lead-in wire, and functional pin has normal conducting function.Redundant pad 12 is positioned at the two ends of functional pin group 11 and is positioned at the outside of the cabling of functional pin group 11; every side has one, two or more redundant pad; this redundancy pad 12 is Redundancy Design; do not have the current lead-through effect; its effect be with other sheet materials on Redundancy Design welding or be bonded together; opposing external stress and impact, the functional pin of protective redundancy pad 12 inside is without prejudice, thereby guarantees the reliability that flexible print circuit board 1 is connected with other sheet materials.Redundant pad 12 is a strip, and the length of redundant pad 12 is more than or equal to the technology length of cohering or welding, and the black among the figure on redundant pad and the functional pin partly is the technology length of cohering or welding.For the consistency of technology, the width of redundant pad 12 is identical with the width of this end of functional pin.If redundant pad 12 quantity of making in every side of the cabling of every end of functional pin group are two or more, then the gap length between the functional pin of the gap length between these two or more redundant pads and this end is identical.Be that PICTH (line at interval) between the redundant pad is identical with the PICTH of functional pin, PICTH be between the width of guide line and lead gap length with.Flexible print circuit board FPC of the present utility model need be attached thereto on other sheet materials that connect also has corresponding Redundancy Design.
The redundant pad 12 of Redundancy Design can also be square or circle waits other shapes, and its width also can be different with the width of functional pin.
In addition, the redundant pad of functional pin group homonymy can also be communicated with into a line, can realize the purpose of this utility model equally.
Specific embodiment two, as shown in Figure 2 is the application of flexible print circuit board FPC in LCD of embodiment one.This LCD comprises LCD panel, circuit board 3 and flexible print circuit board 1, and the two ends of flexible print circuit board 1 connect the substrate 2 and the circuit board 3 of LCD panel respectively.Flexible print circuit board 1 comprises that base material and the functional pin group 11 and first redundant pad 12, the first redundant pads 12 that are made on the base material are the redundant pad of Redundancy Design.The end that the substrate 3 of LCD panel is connected with flexible print circuit board 1 is manufactured with the function pads 21 and the second redundant pad 22, function pads 21 and the 11 corresponding connections of functional pin group, the second redundant pad 22 and the first redundant pad 12 corresponding connections, function pads 21 is complementary with the position and the shape of the end of functional pin group 11, and the position and the shape of the second redundant pad 22 and the first redundant pad 12 are complementary.The end that circuit board 3 is connected with flexible print circuit board 1 is manufactured with function pads 31 and triple redundance pad 32, function pads 31 and the 11 corresponding connections of functional pin group, the triple redundance pad 32 and the first redundant pad 12 corresponding connections, function pads 31 is complementary with the position and the shape of the end of functional pin group 11, and the position and the shape of the triple redundance pad 32 and the first redundant pad 12 are complementary.
Be to guarantee the technology unanimity, the first redundant pad 12 is a strip, and the width width with the functional pin of its end, place respectively is identical.The second redundant pad 22 and triple redundance pad 32 also are strip, and the width width with the function pads of the end of its place sheet material respectively is identical.And more than or equal to the length of the second redundant pad 22 or triple redundance pad 32, the black among the figure on redundant pad and the functional pin partly is the technology length of cohering or welding to the length of the first redundant pad 12 respectively.
If the first redundant pad 12 is two or more in the quantity of every side of the cabling of every end of functional pin group 11, gap length between these two or more redundant pads is identical with gap length between the functional pin of this end, and promptly the PICTH between the first redundant pad 12 (line at interval) is identical with the PICTH of functional pin.Accordingly, the second redundant pad 22 also is two or more in the quantity of every side of function pads 21, its PITCH is identical with the PITCH of function pads 21, and triple redundance pad 32 also is two or more in the quantity of every side of function pads 31, and its PITCH is identical with the PITCH of function pads 31.
Flexible print circuit board FPC of the present utility model can also use in other products except being applied to LCD.
Claims (10)
1. flexible print circuit board, comprise flexible print circuit board base material and the functional pin that is made on the base material, the two ends of described functional pin are used to connect miscellaneous part, the all functions lead wire set becomes the functional pin group, it is characterized in that: the cabling outside at the two ends of functional pin group also respectively is manufactured with one or more redundant pad.
2. flexible print circuit board as claimed in claim 1 is characterized in that: described redundant pad is a strip, and walks line parallel with the two ends of functional pin.
3. flexible print circuit board as claimed in claim 2 is characterized in that: the length of described redundant pad is more than or equal to the technology length of cohering or welding.
4. as claim 2 or 3 described flexible print circuit boards, it is characterized in that: the width of described redundant pad is identical with the width of this end of functional pin.
5. flexible print circuit board as claimed in claim 4, it is characterized in that: described redundant pad is two or more in the quantity of every side of every end, functional pin group, and the gap length between these two or more redundant pads is identical with gap length between the functional pin of this end.
6. LCD, comprise LCD panel, circuit board and flexible print circuit board, the two ends of described flexible print circuit board connect the substrate and the circuit board of LCD panel respectively, described flexible print circuit board comprises flexible print circuit board base material and the functional pin that is made on the base material, the two ends of described functional pin are used to connect miscellaneous part, the all functions lead wire set becomes the functional pin group, it is characterized in that: the cabling outside at the two ends of functional pin group also respectively is manufactured with one or more redundant pad, also is manufactured with position and shape corresponding second redundant pad and the triple redundance pad with the first redundant pad on the substrate of LCD panel and circuit board.
7. LCD as claimed in claim 6 is characterized in that: the described first redundant pad, the second redundant pad and triple redundance pad all are strip, and line parallel is walked at the two ends of the described first redundant pad and functional pin.
8. flexible print circuit board as claimed in claim 7 is characterized in that: the length of the described first redundant pad is respectively more than or equal to the length of the connected second redundant pad or triple redundance pad.
9. as claim 7 or 8 described flexible print circuit boards, it is characterized in that: the width of the described first redundant pad is identical with the width of this end of functional pin.
10. flexible print circuit board as claimed in claim 9, it is characterized in that: the described first redundant pad is two or more in the quantity of every side of every end, functional pin group, and the gap length between these two or more redundant pads is identical with gap length between the functional pin of this end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520033206 CN2785311Y (en) | 2005-02-02 | 2005-02-02 | Flexible printing circuit board and LCD |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520033206 CN2785311Y (en) | 2005-02-02 | 2005-02-02 | Flexible printing circuit board and LCD |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2785311Y true CN2785311Y (en) | 2006-05-31 |
Family
ID=36772272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520033206 Expired - Lifetime CN2785311Y (en) | 2005-02-02 | 2005-02-02 | Flexible printing circuit board and LCD |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2785311Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102208409A (en) * | 2010-03-30 | 2011-10-05 | 台湾积体电路制造股份有限公司 | Integrated circuit structure |
| CN101547555B (en) * | 2009-05-05 | 2012-10-10 | 福建星网锐捷网络有限公司 | Printed circuit board |
| CN102869186A (en) * | 2012-04-26 | 2013-01-09 | 宸阳光电科技（厦门）有限公司 | Connection structure for flexible printed circuit board and touch panel |
| CN110139470A (en) * | 2019-05-13 | 2019-08-16 | 深圳市华星光电技术有限公司 | Flexible circuit board and display device |
| CN112770477A (en) * | 2019-10-21 | 2021-05-07 | 华为技术有限公司 | Circuit board assembly and electronic equipment |
-
2005
- 2005-02-02 CN CN 200520033206 patent/CN2785311Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101547555B (en) * | 2009-05-05 | 2012-10-10 | 福建星网锐捷网络有限公司 | Printed circuit board |
| CN102208409A (en) * | 2010-03-30 | 2011-10-05 | 台湾积体电路制造股份有限公司 | Integrated circuit structure |
| CN102208409B (en) * | 2010-03-30 | 2013-06-26 | 台湾积体电路制造股份有限公司 | Integrated circuit structure |
| CN102869186A (en) * | 2012-04-26 | 2013-01-09 | 宸阳光电科技（厦门）有限公司 | Connection structure for flexible printed circuit board and touch panel |
| CN102869186B (en) * | 2012-04-26 | 2015-07-29 | 宸阳光电科技（厦门）有限公司 | A kind of flexible print circuit board and touch screen syndeton |
| CN110139470A (en) * | 2019-05-13 | 2019-08-16 | 深圳市华星光电技术有限公司 | Flexible circuit board and display device |
| WO2020228158A1 (en) * | 2019-05-13 | 2020-11-19 | 深圳市华星光电技术有限公司 | Flexible circuit board and display apparatus |
| CN112770477A (en) * | 2019-10-21 | 2021-05-07 | 华为技术有限公司 | Circuit board assembly and electronic equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150202 Granted publication date: 20060531 |