CN203490676U - Capacitive touch screen - Google Patents
Capacitive touch screen Download PDFInfo
- Publication number
- CN203490676U CN203490676U CN201320347859.0U CN201320347859U CN203490676U CN 203490676 U CN203490676 U CN 203490676U CN 201320347859 U CN201320347859 U CN 201320347859U CN 203490676 U CN203490676 U CN 203490676U
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- Prior art keywords
- contact panel
- circuit
- conductive material
- touch screen
- capacitive touch
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Abstract
The utility model relates to a capacitive touch screen, which comprises a touch panel and the touch panel comprises a touch area and a frame around the touch area; the touch panel is communicated with a complete machine main board by a circuit panel (such as a flexible circuit panel FPC), wherein circuits bridged by conducting materials are disposed on the touch panel; and among the circuits bridged by the conducting materials, at least some of the circuits are disposed inside the touch area and bridged by a transparent conducting material and the other circuits are bridged by the conducting materials and disposed on the frame of the touch panel. In comparison with the prior art, the circuits are bridged on the touch panel, so the structure of the FPC can be decreased as much as position, pins by which the FPC is connected to the touch panel are decreased, fabrication requirements for the FPC are reduced and a binding technology of the FPC and the touch screen is simplified. In this way, FPC can be simpler in structure, more convenient in manufacture procedures and wider in application.
Description
Technical field
The utility model relates to a kind of touch-screen, specifically a kind of capacitive touch screen.
Background technology
Touch-screen, man-machine conversation is carried out in available finger touch operation, is generally used in touch-screen mobile phone, touch-screen PDA, panel computer, in automatic navigator and other industrial control equipments.User can save operation push-button directly to operate by touch-screen, has strengthened man-machine interactive.
, there is capacitive touch screen in the development along with scientific and technical, this kind of touch-screen become the new touch apparatus of electronic equipment such as mobile phone, notebook.Because capacitive touch screen is compared with traditional touch-screen, there is multipoint-touch-technology, its location is more precisely reliable.
And in current capacitance touch screen technology, the bridge formation circuit of contact panel is generally all achieved on FPC.Like this, need FPC to there is very large design space, restricted greatly the structure of terminal complete machine, and FPC with contact panel the pin when being connected too many, greatly affect the be connected technique of contact panel with FPC, thereby affected production efficiency and the yield of touch-screen.In addition, such connected mode requires relatively high to the making of FPC, has restricted production efficiency and the yield of FPC.
Utility model content
The utility model, in order to overcome the deficiencies in the prior art, designed a kind of capacitive touch screen, makes it simplify the technique that is connected between FPC and contact panel, discharged the design space of FPC.
To achieve these goals, the utility model provides a kind of capacitive touch screen, comprise: contact panel, described contact panel has a Touch Zone, with a frame that is centered around described Touch Zone surrounding, described contact panel is communicated with complete machine mainboard by circuit board, and described contact panel is provided with the circuit that adopts conductive material to build bridge;
Wherein, in the circuit of building bridge at described employing conductive material, the circuit that has at least part to build bridge for the employing transparent conductive material being arranged in described Touch Zone, all the other circuits that adopt conductive material to build bridge are arranged on the frame of described contact panel;
One end of described circuit board is connected with the circuit that adopts conductive material to build bridge on described frame, and the other end is connected with described complete machine mainboard.
Embodiment of the present utility model compared with the existing technology, when user's finger taps the Touch Zone of panel, can export by being arranged on the circuit that adopts conductive material to build bridge on contact panel, and send in complete machine mainboard through circuit board by the positional information of contact.Due to by circuit bridging on contact panel, so when design FPC, can dwindle the structure of FPC as far as possible, pin when minimizing FPC is connected with contact panel, reduce the making requirement of FPC, simplify the binding technique of FPC and touch-screen, thereby FPC is reached structure, more simplify, more convenient on processing procedure, object widely in purposes.
In order to adapt to the demand in market, described conductive material is transparent ink, silver slurry or charcoal slurry.User can print according to the material selection silver slurry of conductive material or charcoal slurry, and connects up in conjunction with etch process.
Preferably, the circuit that described employing transparent conductive material is built bridge is that whole piece covers the transparent ink on described contact panel Touch Zone, and partially transparent ink extends on the frame of described contact panel, the circuit of building bridge with the employing conductive material being arranged on described contact panel frame is connected.By the conductive characteristic of transparent ink self, the contact position on contact panel is sent in complete machine mainboard.And because transparent ink has higher transparency, when extending to the frame of contact panel, transparent ink can combine together with the color of contact panel frame, can not produce aberration, so that the frame of contact panel can be selected various colors, the face version color that makes whole capacitance type touch control screen is horn of plenty more.
Preferably, on described circuit board, also add and post control chip.Control chip can scan Touch Zone, calculates the coordinate position of touch point on Touch Zone according to the capacitance variations before and after scanning, and this position is being shown to screen display, thereby improves the positioning precision of contact panel.
Preferably, described circuit board is flexible PCB FPC.Because capacitive touch screen is used FPC as the lead-in wire that connects contact panel and complete machine mainboard, because FPC has stronger flexibility, institute is so that be arranged on touch-screen on complete machine mainboard.
Preferably, described contact panel is contact panel, the contact panel based on polyethylene terephtalate material or the contact panel based on glass GLASS material based on polycarbonate material.Make the utlity model has application scenarios widely, to meet market demand.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing capacitive touch screen;
Fig. 2 is the structural representation of the utility model the first embodiment;
Fig. 3 is the side view of Fig. 2.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, each embodiment of the present utility model is explained in detail.Yet, persons of ordinary skill in the art may appreciate that in each embodiment of the utility model, in order to make reader understand the application better, many ins and outs have been proposed.But, even without these ins and outs and the many variations based on following embodiment and modification, also can realize each claim of the application technical scheme required for protection.
As shown in Figure 1, existing capacitive touch screen, comprises bridge formation circuit 1, FPC2.Wherein, the bridge formation circuit 1 of contact panel is realized on FPC2.Like this, require FPC need to there is very large design space, restricted greatly the structure of terminal complete machine, and FPC with contact panel the pin when being connected too many, greatly affect the be connected technique of contact panel with FPC, thereby affected production efficiency and the yield of touch-screen.In addition, such connected mode requires relatively high to the making of FPC, has restricted production efficiency and the yield of FPC.
The first embodiment of the present utility model relates to a kind of capacitive touch screen, as shown in Figures 2 and 3, comprises contact panel, and contact panel is communicated with complete machine mainboard by circuit board (not indicating in figure).
In the present embodiment, contact panel comprises one with the panel base material 4 of conductive coating 3, and is coated in the dielectric ink 5 of panel base material 4 surroundings.Dielectric ink 5 forms the frame of contact panel 3, and the central area with conductive coating 3 of uncoated dielectric ink 5 forms the Touch Zone of contact panel.
In addition, on contact panel, be also provided with the circuit that adopts conductive material to build bridge.Wherein, in the circuit that adopts conductive material to build bridge, the circuit 7 that has at least part to build bridge for the employing transparent conductive material being arranged in described Touch Zone, all the other circuits 8 that adopt conductive material to build bridge are arranged on the frame of contact panel.One end of circuit board is connected with the circuit 8 that adopts conductive material to build bridge on frame, and the other end is connected with described complete machine mainboard.
Specifically, adopting the circuit 7 that transparent conductive material is built bridge is to cover the transparent ink on described contact panel Touch Zone, and partially transparent ink extends on the frame of described contact panel, the circuit of building bridge with the employing conductive material being arranged on described contact panel frame is connected.By the conductive characteristic of transparent ink self, the contact position on contact panel is sent in complete machine mainboard.And because transparent ink has higher transparency, when extending to the frame of contact panel, transparent ink can combine together with the color of contact panel frame, can not produce aberration, so that the frame of contact panel can be selected various colors, the face version color that makes whole capacitance type touch control screen is horn of plenty more.
When user's finger taps the Touch Zone of panel, the positional information of contact can be exported by being arranged on the circuit that adopts conductive material to build bridge on contact panel, and sends in complete machine mainboard through circuit board.Due to by circuit bridging on contact panel, so when design FPC, can dwindle the structure of FPC as far as possible, pin when minimizing FPC is connected with contact panel, reduce the making requirement of FPC, simplify the binding technique of FPC and touch-screen, thereby FPC is reached structure, more simplify, more convenient on processing procedure, object widely in purposes.
And, in order to adapt to the demand in market, be arranged on the circuit that adopts conductive material to build bridge on described frame, wherein conductive material can transparent ink, silver slurry or charcoal slurry.User can adopt silver slurry or the printing of charcoal slurry according to the material of conductive material, and connects up in conjunction with etch process.
In addition, the panel base material of contact panel in the present embodiment, can select the contact panel of PC material, PET material or GLASS material.Make the utlity model has application scenarios widely, to meet market demand.
The second embodiment of the present utility model relates to a kind of capacitive touch screen, and the second embodiment is on the basis of the first embodiment, to have done further improvement.Main improvements are: on circuit board, also can stick on control chip.Control chip can scan the contact on contact panel Touch Zone, calculates the coordinate position of Touch Zone upper contact according to the capacitance variations before and after scanning, and this position is being shown to screen display, thereby improves the positioning precision of contact panel.
And the circuit board in present embodiment is flexible PCB FPC.Because capacitive touch screen is used FPC as the lead-in wire that connects contact panel and complete machine mainboard, because FPC has stronger flexibility, institute is so that be arranged on touch-screen on complete machine mainboard.
Persons of ordinary skill in the art may appreciate that the respective embodiments described above are to realize specific embodiment of the utility model, and in actual applications, can to it, do various changes in the form and details, and do not depart from spirit and scope of the present utility model.
Claims (8)
1. a capacitive touch screen, comprise: contact panel, described contact panel has a Touch Zone, with a frame that is centered around described Touch Zone surrounding, described contact panel is communicated with complete machine mainboard by circuit board, it is characterized in that: described contact panel is provided with the circuit that adopts conductive material to build bridge;
Wherein, in the circuit of building bridge at described employing conductive material, the circuit that has at least part to build bridge for the employing transparent conductive material being arranged in described Touch Zone, all the other circuits that adopt conductive material to build bridge are arranged on the frame of described contact panel;
One end of described circuit board is connected with the circuit that adopts conductive material to build bridge on described frame, and the other end is connected with described complete machine mainboard.
2. capacitive touch screen according to claim 1, it is characterized in that: the circuit that described employing transparent conductive material is built bridge is that whole piece covers the circuit on described Touch Zone, and extend on the frame of described contact panel, the circuit of building bridge with the employing conductive material being arranged on described contact panel frame is connected.
3. capacitive touch screen according to claim 2, is characterized in that: described in be arranged on and on the frame of contact panel, adopt circuit that conductive material builds bridge for adopting silver slurry or the printing of charcoal slurry, and in conjunction with the circuit of etch process wiring.
4. according to the capacitive touch screen described in any one in claims 1 to 3, it is characterized in that: described conductive material is transparent ink, silver slurry or charcoal slurry.
5. according to the capacitive touch screen described in any one in claims 1 to 3, it is characterized in that: described transparent conductive material is transparent ink.
6. according to the capacitive touch screen described in any one in claims 1 to 3, it is characterized in that: described circuit board is flexible PCB FPC.
7. according to the capacitive touch screen described in any one in claims 1 to 3, it is characterized in that: on described circuit board, also add and post control chip.
8. according to the capacitive touch screen described in any one in claims 1 to 3, it is characterized in that: described contact panel is contact panel, the contact panel based on polyethylene terephtalate material or the contact panel based on glass GLASS material based on polycarbonate material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320347859.0U CN203490676U (en) | 2013-06-18 | 2013-06-18 | Capacitive touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320347859.0U CN203490676U (en) | 2013-06-18 | 2013-06-18 | Capacitive touch screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203490676U true CN203490676U (en) | 2014-03-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320347859.0U Expired - Fee Related CN203490676U (en) | 2013-06-18 | 2013-06-18 | Capacitive touch screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203490676U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106155405A (en) * | 2015-04-28 | 2016-11-23 | 深圳欧菲光科技股份有限公司 | Flexible PCB and apply the electronic equipment of this flexible PCB |
-
2013
- 2013-06-18 CN CN201320347859.0U patent/CN203490676U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106155405A (en) * | 2015-04-28 | 2016-11-23 | 深圳欧菲光科技股份有限公司 | Flexible PCB and apply the electronic equipment of this flexible PCB |
| CN106155405B (en) * | 2015-04-28 | 2024-04-26 | 安徽精卓光显技术有限责任公司 | Flexible circuit board and electronic equipment using same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140319 Termination date: 20160618 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |