CN202454298U - Sensing conducting film of capacitive touch screen - Google Patents
Sensing conducting film of capacitive touch screen Download PDFInfo
- Publication number
- CN202454298U CN202454298U CN2012200522722U CN201220052272U CN202454298U CN 202454298 U CN202454298 U CN 202454298U CN 2012200522722 U CN2012200522722 U CN 2012200522722U CN 201220052272 U CN201220052272 U CN 201220052272U CN 202454298 U CN202454298 U CN 202454298U
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- sensing
- conducting film
- touch screen
- sense line
- capacitive touch
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Abstract
The utility model discloses a sensing conducting film of a capacitive touch screen, wherein the sensing conducting film is a single-layer capacitance-resistance type conducting film arranged on a single-layer base plate. Particularly, the conducting film is a matrix thin film formed by a plurality of rectangular sensing line blocks, wherein every two sensing line blocks are not overlapped with each other, each sensing line block is respectively provided with a lead-out wire, and all the lead-out wires are collected at one side of the touch screen. After the sensing conducting film is adopted, the single-layer sensing conducting design on the single-layer base plate can be realized, so that the thickness of the capacitive touch screen can be effectively thinned; and the sensing line blocks with proper lengths or widths are selected to form into the matrix thin film, so that a touch screen sensing scheme with accurate and controllable touching can be provided.
Description
Technical field
The utility model relates to a kind of capacitive touch screen, relates in particular to the individual layer sensing conducting film picture construction of this touch-screen.
Background technology
Touch-screen is a kind of simple, convenient, natural human-computer interaction device, and it has been widely used in various places.Touch-screen is of a great variety, divides by principle mainly to comprise resistance-type, condenser type, infrared type and surface acoustic wave type.Wherein capacitive touch screen is that the induced current that capacitance variations produced that utilizes electrode on the glass substrate to combine with static between the human body to be produced the be touched coordinate of position of detector.Principle of induction acts on four corners of screen induction zone and forms a stationary electric field with voltage, when finger bumps screen, can make electric field cause electric current, measures by controller, according to the difference of four corner ratios of electric current, can calculate contact position.
Main part as capacitive touch screen; The sensing module has following several kinds of versions under prior art: (1) single layer substrate and the conducting film that invests its upper surface; (2) single layer substrate and conducting film, (3) double layer substrate and the conducting film that invests each laminar substrate upper surface respectively of giving its upper and lower surfaces.The coatings that wherein conducting film can individual layer or be coated with rete also can be the coatings of multilayer or be coated with rete.Existing sensing conducting film to such capacitive touch screen adopts the multicoating layer of sense line criss-cross arrangement formation more or is coated with rete (as shown in Figure 1); Through pressing operation to touch-screen; Make staggered sense line engage, thereby differentiate the particular location of user the capacitive touch screen operation.Yet this multicoating layer or be coated with rete and caused the lightening bottleneck of capacitance touch screen products.
For this reason, for the technical staff who is engaged in capacitive touch screen research, look for the sensing conducting film sensing arrangement that is applicable to single layer structure, significant for the development of touch-screen industry.
Summary of the invention
In view of the defective and an urgent demand of above-mentioned prior art, the purpose of the utility model is the sensing conducting film that proposes a kind of capacitive touch screen, solves the sensing arrangement problem of implementation of individual layer sensing conducting film.
The purpose of the utility model will be achieved through following technical scheme:
A kind of sensing conducting film of capacitive touch screen; Said sensing conducting film is that the individual layer of being located on the single layer substrate holds resistance formula conductive film; It is characterized in that: the matrix film that said conductive film constitutes for the sense line piece by a plurality of rectangles; And the sense line interblock is non-intersect folded in twos, and each said sense line piece is respectively equipped with lead-out wire, and all lead-out wires converge at touch-screen one side.
Further, the size of each said sense line piece is corresponding to the contact area of finger with touch-screen.
Further, the interval width between the said sense line piece is much smaller than the length or the width of sense line piece, and lead-out wire passes from said interval.
The development and the application of the utility model sensing conducting film compare to the circuit structure design of traditional sensing conducting film, can realize the individual layer sensing conduction design on the single layer substrate, effectively the thickness of attenuate capacitive touch screen; And the sense line piece through selecting length when or width constitutes matrix film, and a kind of accurately controlled touch-screen sensing scheme that touches is provided.
Following constipation closes the embodiment accompanying drawing, the embodiment of the utility model is done further to detail, so that technical scheme of the present invention is easier to understand, grasp.
Description of drawings
Fig. 1 is the sensing picture construction sketch map of conventional touch screen conducting film;
Fig. 2 is the sensor block picture construction sketch map of the utility model sensing conducting film;
Fig. 3 is the principle of induction sketch map of the utility model sensing conducting film.
Embodiment
Complicated in view of the sensing conducting film product processes of existing capacitive touch screen, sandwich construction overlaps, ultra-thinization of incompatibility human-computer interaction device designing requirement.The researcher of the utility model is through the architectural feature of the capacitive touch screen of concentrating on studies for many years, and to the designing requirement of individual layer sensing conducting film, innovation having proposed a kind of higher feasibility that has, and technology realizes easier sensing conducting film solution.
As shown in Figure 2, the sensing conducting film of this kind capacitive touch screen, said sensing conducting film 2 holds resistance formula conductive film for the individual layer of being located on the single layer substrate 1; It is the sense line piece (21,22,23 by a plurality of rectangles; 24 ...) matrix film that constitutes, and the sense line interblock is non-intersect folded in twos, and each sense line piece is respectively equipped with lead-out wire; And all lead-out wires converge at touch-screen one side, link to each other with the IC chip 11 of touch-screen.
Technique scheme also has further prioritization scheme, and the interval width between the sense line piece is much smaller than the length or the width of sense line piece, and lead-out wire passes from said interval.And the size of each sense line piece is selected rational sense line block length and width corresponding to the contact area of finger with touch-screen according to the sensing accuracy of touch-screen.
Optional 2 sensing positioning principle is visible in this touch-screen as shown in Figure 3: wherein A (A1, A2), B (B3, C3).Corresponding to different touch sensing location, the sense line number of blocks that possibly touched simultaneously is 2～4.
The development and the application of the utility model sensing conducting film compare to the circuit structure design of traditional sensing conducting film, can realize the individual layer sensing conduction design on the single layer substrate, effectively the thickness of attenuate capacitive touch screen; And the sense line piece through selecting length when or width constitutes matrix film, and a kind of accurately controlled touch-screen sensing scheme that touches is provided.
Claims (3)
1. the sensing conducting film of a capacitive touch screen; Said sensing conducting film is that the individual layer of being located on the single layer substrate holds resistance formula conductive film; It is characterized in that: the matrix film that said conductive film constitutes for the sense line piece by a plurality of rectangles; And the sense line interblock is non-intersect folded in twos, and each said sense line piece is respectively equipped with lead-out wire, and all lead-out wires converge at touch-screen one side.
2. the sensing conducting film of a kind of capacitive touch screen according to claim 1 is characterized in that: the size of each said sense line piece is corresponding to the contact area of finger with touch-screen.
3. the sensing conducting film of a kind of capacitive touch screen according to claim 1, it is characterized in that: the interval width between the said sense line piece is much smaller than the length or the width of sense line piece, and lead-out wire passes from said interval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200522722U CN202454298U (en) | 2012-02-17 | 2012-02-17 | Sensing conducting film of capacitive touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200522722U CN202454298U (en) | 2012-02-17 | 2012-02-17 | Sensing conducting film of capacitive touch screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202454298U true CN202454298U (en) | 2012-09-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200522722U Expired - Fee Related CN202454298U (en) | 2012-02-17 | 2012-02-17 | Sensing conducting film of capacitive touch screen |
Country Status (1)
| Country | Link |
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| CN (1) | CN202454298U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220317848A1 (en) * | 2020-09-07 | 2022-10-06 | Chengdu Boe Optoelectronics Technology Co., Ltd. | Touch Panel, Preparation Method Thereof and Display Apparatus |
-
2012
- 2012-02-17 CN CN2012200522722U patent/CN202454298U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220317848A1 (en) * | 2020-09-07 | 2022-10-06 | Chengdu Boe Optoelectronics Technology Co., Ltd. | Touch Panel, Preparation Method Thereof and Display Apparatus |
| US11816283B2 (en) * | 2020-09-07 | 2023-11-14 | Chengdu Boe Optoelectronics Technology Co., Ltd. | Touch panel, preparation method thereof and display apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Lixin optical (Suzhou) Co., Ltd. Assignor: Du Xiulan Contract record no.: 2013320010002 Denomination of utility model: Sensing conducting film of capacitive touch screen Granted publication date: 20120926 License type: Exclusive License Record date: 20130122 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120926 Termination date: 20150217 |
|
| EXPY | Termination of patent right or utility model |