CN203520366U - Flexible printed circuit board and capacitive touch screen - Google Patents
Flexible printed circuit board and capacitive touch screen Download PDFInfo
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- CN203520366U CN203520366U CN201320573535.9U CN201320573535U CN203520366U CN 203520366 U CN203520366 U CN 203520366U CN 201320573535 U CN201320573535 U CN 201320573535U CN 203520366 U CN203520366 U CN 203520366U
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- circuit board
- print circuit
- flexible print
- transparent conductive
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Abstract
The utility model provides a flexible printed circuit board. The flexible printed circuit board comprises a flexible printed circuit board body and electric conduction golden fingers arranged at one end of the flexible printed circuit board body, at least one notch is formed in each electric conduction golden finger in the arraying direction of the electric conduction golden fingers, and each electric conduction golden finger is divided into at least two segments through the corresponding notch. The utility model further provides a capacitive touch screen provided with the flexible printed circuit board. According to the flexible printed circuit board, at least one notch is formed in each electric conduction golden finger in the arraying direction of the electric conduction golden fingers, each electric conduction golden finger is divided into at least two segments through the corresponding notch, in this way, hot press can be performed on each segment of the electric conduction golden fingers, and alignment is easier due to the segmental hot press, which is beneficial for improving alignment accuracy of the flexible printed circuit board; after segmenting, the total width of all the segments of the electric conduction golden fingers is reduced, a short hot press head can be used in the hot press process, and therefore smoothness of the flexible printed circuit board after hot press can be ensured.
Description
Technical field
The utility model relates to touch field, relates in particular to a kind of flexible print circuit board and capacitive touch screen.
Background technology
At present, integrated capacitor formula touch-screen (One Glass Solution, abbreviation OGS) structure mainly comprises the transparency protected panel with decorative layer, on described transparency protected panel, there is the X-axis electrode pattern and the Y-axis electrode pattern that by transparent conductive film, are formed, between electrode pattern, there is the insulation material of dielectric effect, to allow electrode pattern form coupling capacitance, distributed; Wherein, the material of described transparent conductive film can be tin indium oxide (ITO), zinc oxide aluminum (AZO) etc.When finger touch screen is certain position of transparency protected panel; finger and this location transparency conductive film surface form a coupling capacitance; in the corresponding transparency protected panel X-axis in this position and Y-axis, original coupling electric charge distributes and changes; cause the variation of touch point electric capacity, control system determines by the monitoring of this variation the position coordinates that finger touch occurs.
Under normal circumstances, determine the coordinate of finger touch position, the layout of described X-axis electrode pattern and Y-axis electrode pattern need to be used bridging structure or two-layer wiring structure, but the touch-screen of OGS structure only needs layer of transparent conductive film just can realize.Specifically please refer to shown in Fig. 1-3; in the touch-screen of existing OGS structure; described transparent conductive film 12 is generally directly plated on transparency protected panel 11; the contact conductor 13 that connects transparent conductive film 12 is distributed in described transparent conductive film 12 around; described contact conductor 13 cablings are to the Pin pin (or pin) 14 of transparency protected panel 11 ends; described Pin pin 14 is connected to outside control system by flexible print circuit board (Flexible Printed Circuit is called for short FPC) 15.Wherein, described flexible print circuit board 15 comprises the golden finger pin 151 connecting for concrete, and it specifically can be connected with Pin pin 14 by the mode of hot pressing.
But present inventor studies discovery, in existing OGS structure folding touch-screen, an X-axis (laterally) electrode pattern needs m Pin pin, and wherein m is Y-axis (longitudinally) number of electrodes, and the OGS touch-screen for the capable m row of n, needs m * n+m Pin pin; But not in OGS touch screen structure, an X-axis (laterally) electrode pattern only needs a Pin pin, the non-OGS touch-screen for the capable m row of n, needs n+m Pin pin.Therefore, the touch-screen of OGS structure can increase the Pin pin quantity of transparency protected panel 11 ends greatly, the increase of this Pin pin quantity can make golden finger pin 151 quantity of corresponding with it flexible print circuit board 15 increase, make flexible print circuit board 15 longer in the length of golden finger pin 151 orientations, while causing flexible print circuit board 15 hot pressing, described Pin pin 14 is inaccurate with flexible print circuit board 15 contrapositions; In hot pressing, need to use longer thermal head, while causing flexible print circuit board 15 hot pressing, planarization is poor, thereby has affected the function of whole OGS touch-screen simultaneously.
Utility model content
For aforementioned existing flexible print circuit board, when with the hot pressing of touch-screen pin, can cause the not poor technical matters of the whole property of near peace of flexible print circuit board contraposition, the utility model provides a kind of novel flexible print circuit board.
The purpose of this utility model is achieved through the following technical solutions:
A kind of flexible print circuit board, comprise flexible print circuit board main body and the conductive gold finger of being located at described flexible print circuit board main body one end, wherein, described conductive gold finger is provided with at least one breach along golden finger orientation, and described breach is divided at least two sections by described conductive gold finger.
In the flexible print circuit board that the utility model provides, described conductive gold finger is provided with at least one breach along golden finger orientation, described breach is divided at least two sections by described conductive gold finger, can carry out respectively hot pressing to every a bit of conductive gold finger thus, in prior art, whole flexible print circuit board is carried out to hot pressing, contraposition is more easily carried out in the segmentation hot pressing providing in the application, is conducive to improve the aligning accuracy of flexible print circuit board; Meanwhile, after segmentation, the width overall length of every a bit of conductive gold finger diminishes, and in hot pressing, can use shorter thermal head, therefore can guarantee the planarization of flexible print circuit board after hot pressing.
Further, described breach is " U " v notch v.
Further, described " U " v notch v comprises flat equally spaced the first wall and the second wall, and the diapire that connects described the first wall and the second wall, and described diapire has the cross section of circular shape.
Further, the width of described " U " v notch v is 0.8-1 millimeter, and the degree of depth is 1.5-3 millimeter.
Further, a side of described every section of conductive gold finger is provided with the first alignment mark, and opposite side is provided with the second alignment mark.
Further, described the first alignment mark and the second alignment mark are " ten " character form structure.
Further, described the first alignment mark and the second alignment mark are empty pin configuration.
The utility model also provides a kind of capacitive touch screen, comprises and touches body and aforesaid flexible print circuit board, and described flexible print circuit board is electrically connected to described touch body.
In the capacitive touch screen that the utility model provides, described flexible print circuit board is provided with at least one breach at described conductive gold finger along golden finger orientation, described breach is divided at least two sections by described conductive gold finger, can carry out hot pressing with touch body respectively to every a bit of conductive gold finger thus, in prior art, whole flexible print circuit board is carried out to hot pressing, contraposition is more easily carried out in the segmentation hot pressing providing in the application, is conducive to improve the aligning accuracy of flexible print circuit board; Meanwhile, after segmentation, the width overall length of every a bit of conductive gold finger diminishes, and in hot pressing, can use shorter thermal head, therefore can guarantee the planarization of flexible print circuit board after hot pressing.
Further, described touch body comprises transparency protected panel, transparent conductive film, contact conductor and pin; Described transparent conductive film is located on the surface of described transparency protected panel one side, and one end of described contact conductor connects described transparent conductive film, and other end cabling is to the pin of described transparency protected panel end.
Further, described transparent conductive film comprises many horizontal transparent conductive films and many longitudinal transparent conductive films; Each described longitudinal transparent conductive film connects with corresponding pin by described contact conductor, each described horizontal transparent conductive film is divided into multistage by described many longitudinal transparent conductive films, and every section of horizontal transparent conductive film connects with corresponding pin by described contact conductor.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of the OGS touch-screen that provides of prior art;
Fig. 2 is the cross section structure schematic diagram of the OGS touch-screen that provides of prior art;
Fig. 3 is the structural representation of flexible print circuit board in the OGS touch-screen that provides of prior art;
Fig. 4 is the structural representation of the flexible print circuit board that provides of the utility model embodiment.
Wherein, 11, transparency protected panel; 12, transparent conductive film; 13, contact conductor; 14, Pin pin/pin; 15, flexible print circuit board; 150, conductive gold finger; 151, golden finger pin; 152, breach; 153, the first alignment mark; 154, the second alignment mark.
Embodiment
Clearer for technical matters, technical scheme and beneficial effect that the utility model is solved, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Please refer to shown in Fig. 4, the utility model embodiment provides a kind of flexible print circuit board 15, comprise flexible print circuit board main body (not shown) and the conductive gold finger 150 of being located at described flexible print circuit board main body one end, wherein, described conductive gold finger 150 is provided with at least one breach 152 along golden finger orientation, and described breach 152 is divided at least two sections by described conductive gold finger 150.
In the flexible print circuit board that the utility model embodiment provides, described conductive gold finger is provided with at least one breach along golden finger orientation, described breach is divided at least two sections by described conductive gold finger, can carry out respectively hot pressing to every a bit of conductive gold finger thus, in prior art, whole flexible print circuit board is carried out to hot pressing, contraposition is more easily carried out in the segmentation hot pressing providing in the application, is conducive to improve the aligning accuracy of flexible print circuit board; Meanwhile, after segmentation, the width overall length of every a bit of conductive gold finger diminishes, and in hot pressing, can use shorter thermal head, therefore can guarantee the planarization of flexible print circuit board after hot pressing.
Please refer to shown in Fig. 4, in the present embodiment, suppose that described flexible print circuit board 15 is provided with 400 golden finger pins 151, the pin widths of each golden finger pin 151 is 0.2 millimeter, the pin-pitch of adjacent conductive golden finger is 0.2 millimeter, so the width overall length of the conductive gold of this flexible print circuit board finger 150 is 160-180 millimeter.As embodiment, described conductive gold finger 150 is provided with two breach along golden finger orientation, these two breach are divided into three sections by described conductive gold finger 150, and the length of every section is 53-58 millimeter, and the number of golden finger pin 151 is 133-135 in every section.So far, only need respectively 133-135 conductive gold finger in every section to carry out contraposition hot pressing, so improved the aligning accuracy of flexible print circuit board; Meanwhile, during hot pressing, every a bit of conductive gold finger width overall length is 53-58 millimeter, can use shorter thermal head, has guaranteed the planarization of described flexible print circuit board 15 after hot pressing.
In the present embodiment, described breach 152 is " U " v notch v, can effectively described conductive gold finger 150 be divided into at least two sections thus.Certainly, the shape of described breach is not limited to this, those skilled in the art are on the basis of aforementioned notch geometry, can also be arranged to other shape, such as being arranged to " V " v notch v or being similar to Pear-Shaped cross section (being shape) etc., as long as can guarantee, the conductive gold finger of described flexible print circuit board is carried out to effective segmentation.
As specific embodiment, described " U " v notch v comprises flat equally spaced the first wall and the second wall, and the diapire that connects described the first wall and the second wall, and described diapire has the cross section of circular shape; In the present embodiment, described diapire is arranged to have to the cross section of circular shape, can effectively prevents that thus flexible print circuit board 15 is torn.Certainly, described diapire also can be arranged to other and be similar to the cross section with circular arc.
In the present embodiment, the width W of described " U " v notch v 152 (i.e. distance between the first wall and the second wall) is 0.8-1 millimeter; If the width W of breach 152 is greater than 1 millimeter, can cause Sensor cabling space inadequate; If the width W of breach 152 is less than 0.8 millimeter, in the time of can causing segmentation hot pressing, be pressed onto adjacent area.
In the present embodiment, the depth D of described " U " v notch v 152 is 1.5-3 millimeter; If the depth D of breach 152 is greater than 3 millimeters, can cause the cabling space of flexible print circuit board inadequate; If the depth D of breach 152 is less than 1.5 millimeters, can affect the contraposition of other hot pressing section.
In the present embodiment, a side of described every section of golden finger is provided with the first alignment mark 153, and opposite side is provided with the second alignment mark 154.Particularly, for the ease of the contraposition of every a bit of conductive gold finger, the conductive gold that is described breach 152 both sides at the two ends of every a bit of conductive gold finger is pointed and is provided with the first alignment mark 153 and the second alignment mark 154; When carrying out hot pressing contraposition, as long as described the first alignment mark 153 of assurance and the second alignment mark 154 contrapositions are accurate, can guarantee that this segment conductive gold finger contraposition is accurate, when simplifying contraposition operation and without making in addition pairs of bit line.Therefore, guaranteeing every a bit of conductive gold finger hot pressing contraposition simultaneously accurately, the width overall length of less conductive gold finger has also guaranteed the planarization of every a bit of FPC after hot pressing, and then has guaranteed contraposition accuracy and overall leveling after whole flexible print circuit board 15 hot pressing.
In the present embodiment, described the first alignment mark 153 and the second alignment mark 154 are " ten " character form structure or empty pin (or Pin pin) structure, thus can be so that the contraposition of each hot pressing section.Certainly, the form of described the first alignment mark 153 and the second alignment mark 154 is not limited to this, those skilled in the art are on the basis of aforementioned alignment mark form, can also be arranged to other form, such as being arranged to " work " font or F type etc., as long as can guarantee, every section of conductive gold finger is carried out to effective contraposition.
The utility model also provides a kind of capacitive touch screen, comprises and touches body and aforesaid flexible print circuit board, and described flexible print circuit board is electrically connected to described touch body.
In the capacitive touch screen that the utility model embodiment provides, described flexible print circuit board is provided with at least one breach at described conductive gold finger along golden finger orientation, described breach is divided at least two sections by described conductive gold finger, can carry out hot pressing with touch body respectively to every a bit of conductive gold finger thus, in prior art, whole flexible print circuit board is carried out to hot pressing, contraposition is more easily carried out in the segmentation hot pressing providing in the application, is conducive to improve the aligning accuracy of flexible print circuit board; Meanwhile, after segmentation, the width overall length of every a bit of conductive gold finger diminishes, and in hot pressing, can use shorter thermal head, therefore can guarantee the planarization of flexible print circuit board after hot pressing.
In the present embodiment, described capacitive touch screen is the capacitive touch screen of OGS structure, and wherein, described touch body comprises transparency protected panel, transparent conductive film, contact conductor and pin; Described transparent conductive film is located on the surface of described transparency protected panel one side, and one end of described contact conductor connects described transparent conductive film, and other end cabling is to the pin (or Pin pin) of described transparency protected panel end.Further, be also provided with the decorative layer of decoration function in the surrounding of described transparency protected panel, described transparent conductive film is arranged in the decorative layer region of surrounding, is arranged in the viewing area of described capacitive touch screen.Certainly; the type of described capacitive touch screen is not limited to the capacitive touch screen of OGS structure; as long as the pin of described transparency protected panel end is more, be unfavorable for that the capacitive touch screen of described flexible print circuit board and described touch body hot pressing contraposition is included in the application's scope.
In the present embodiment, described transparent conductive film comprises many horizontal transparent conductive films and many longitudinal transparent conductive films; Each described longitudinal transparent conductive film connects with corresponding pin by described contact conductor, each described horizontal transparent conductive film is divided into multistage by described many longitudinal transparent conductive films, and every section of horizontal transparent conductive film connects with corresponding pin by described contact conductor.Certainly; the arrangement of described transparent conductive film is not limited to this; can also adopt other transparent conductive film cabling mode; as long as the layout of described transparent conductive film is after described contact conductor connects; cabling is more to the pin of described transparency protected panel end, is unfavorable for that the capacitive touch screen of described flexible print circuit board and described touch body hot pressing contraposition is included in the application's scope.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. a flexible print circuit board, comprise flexible print circuit board main body and the conductive gold finger of being located at described flexible print circuit board main body one end, it is characterized in that, described conductive gold finger is provided with at least one breach along golden finger orientation, and described breach is divided at least two sections by described conductive gold finger.
2. flexible print circuit board according to claim 1, is characterized in that, described breach is " U " v notch v.
3. flexible print circuit board according to claim 2, is characterized in that, described " U " v notch v comprises flat equally spaced the first wall and the second wall, and the diapire that connects described the first wall and the second wall, and described diapire has the cross section of circular shape.
4. flexible print circuit board according to claim 2, is characterized in that, the width of described " U " v notch v is 0.8-1 millimeter, and the degree of depth is 1.5-3 millimeter.
5. according to the flexible print circuit board described in any one in claim 1-4, it is characterized in that, a side of described every section of conductive gold finger is provided with the first alignment mark, and opposite side is provided with the second alignment mark.
6. flexible print circuit board according to claim 5, is characterized in that, described the first alignment mark and the second alignment mark are " ten " character form structure.
7. flexible print circuit board according to claim 5, is characterized in that, described the first alignment mark and the second alignment mark are empty pin configuration.
8. a capacitive touch screen, comprises touch body, it is characterized in that, also comprises the flexible print circuit board described in any one in claim 1-7, and described flexible print circuit board is electrically connected to described touch body.
9. capacitive touch screen according to claim 8, is characterized in that, described touch body comprises transparency protected panel, transparent conductive film, contact conductor and pin; Described transparent conductive film is located on the surface of described transparency protected panel one side, and one end of described contact conductor connects described transparent conductive film, and other end cabling is to the pin of described transparency protected panel end.
10. capacitive touch screen according to claim 9, is characterized in that, described transparent conductive film comprises many horizontal transparent conductive films and many longitudinal transparent conductive films; Each described longitudinal transparent conductive film connects with corresponding pin by described contact conductor, each described horizontal transparent conductive film is divided into multistage by described many longitudinal transparent conductive films, and every section of horizontal transparent conductive film connects with corresponding pin by described contact conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320573535.9U CN203520366U (en) | 2013-09-16 | 2013-09-16 | Flexible printed circuit board and capacitive touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320573535.9U CN203520366U (en) | 2013-09-16 | 2013-09-16 | Flexible printed circuit board and capacitive touch screen |
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| Publication Number | Publication Date |
|---|---|
| CN203520366U true CN203520366U (en) | 2014-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320573535.9U Expired - Lifetime CN203520366U (en) | 2013-09-16 | 2013-09-16 | Flexible printed circuit board and capacitive touch screen |
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| CN (1) | CN203520366U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10028389B2 (en) | 2015-04-09 | 2018-07-17 | Boe Technology Group Co., Ltd. | Flexible printed circuit board, method for manufacturing the same, and display device |
-
2013
- 2013-09-16 CN CN201320573535.9U patent/CN203520366U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10028389B2 (en) | 2015-04-09 | 2018-07-17 | Boe Technology Group Co., Ltd. | Flexible printed circuit board, method for manufacturing the same, 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: 20150828 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150828 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: BYD 518118 Shenzhen Road, Guangdong province Pingshan New District No. 3009 Patentee before: Biyadi Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518119 Guangdong province Shenzhen City Dapeng new Kwai town Yanan Road No. 1 building experimental Byd Co Patentee after: Shenzhen helitai photoelectric Co., Ltd Address before: 518119 Guangdong province Shenzhen City Dapeng new Kwai town Yanan Road No. 1 building experimental Byd Co Patentee before: SHENZHEN BYD ELECTRONIC COMPONENT Co.,Ltd. |