CN102339183A - Capacitance type touch screen - Google Patents
Capacitance type touch screen Download PDFInfo
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- CN102339183A CN102339183A CN2011101721988A CN201110172198A CN102339183A CN 102339183 A CN102339183 A CN 102339183A CN 2011101721988 A CN2011101721988 A CN 2011101721988A CN 201110172198 A CN201110172198 A CN 201110172198A CN 102339183 A CN102339183 A CN 102339183A
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- induction electrode
- capacitance type
- type touch
- touch control
- control screen
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Abstract
The invention relates to a capacitance type touch screen, which comprises a substrate layer, an induction electrode layer and a protective layer, wherein the induction electrode layer is formed by sequentially arranging a plurality of induction electrode groups and is parallelly distributed on the same side surface of the substrate layer; each induction electrode group comprises a positive induction electrode and a negative induction electrode; and the induction electrodes have a right-angled trapezoid shape. By a right-angled trapezoid layout structure of single layer induction electrodes, processes are simplified, the cost is reduced, and large-range application is facilitated.
Description
Technical field
The present invention relates to a kind of capacitance type touch control screen, especially a kind of capacitance type touch control screen simple in structure, with low cost.
Background technology
Touch screen has been applied on the various multimedia electronic equipments now widely, like mobile phone, and MP3; Panel computer etc.; Along with apple IPHONE, IPAD's is popular, and the touch screen technology also develops into present projected capacitive touch screen by traditional resistance-type; And projected capacitive touch screen induction electrode mainly is made up of ITO (indium tin oxide); ITO is a kind of critical material of LCD, and at present, it has all had in fields such as instrument and meter, computing machine, electronic watch, game machine and household electrical appliance very widely uses.The wiring that the projected capacitive touch screen is gone up ITO generally is single-surface double-layer or two-sided single layer structure; Its cardinal principle is: utilize people's bulk electric field; When the user touches; The mutual capacitance (also claiming coupling capacitance) of the infall sensing unit of surface row or row can change, and finally can detect the particular location of touch point according to above-mentioned variation.
The structure of common double-deck ITO is a diamond structure; Its double-deck ITO is laid in respectively on the same one side of glass substrate; For fear of the conducting between the two-layer different directions electrode,, so just can double-deck ITO be laid on the same one side of glass substrate so bridge contact need be set on glass substrate.Though said method has been realized the action that detecting touches, the touch screen structure of the double-deck ITO of this employing, not only complex process, and bridge joint place damages easily, and the product yield is low, causes cost to raise.In order to overcome above-mentioned shortcoming, part manufacturer is arranged to rectangle with the structure of ITO, two-sidedly then is arranged on the two-layer of glass substrate; So, really simple much of technology, and improved the product yield; But what still adopt is the wire structures of double-deck ITO; The cost of ITO own is just higher, adds structure of two layers, and the thickness that forms touch-screen has thus also just been increased.If can overcome the limitation that double-deck ITO layouts brings, so no matter be to consider that from the cost or the structure of touch-screen individual layer ITO all has more advantages.
Therefore need solve above problem for users provide the wire structures of a kind of easier ITO.
Summary of the invention
The actual technical matters to be solved of the present invention is how for the user touch screen a kind of simple in structure, with low cost to be provided.
In order to realize above-mentioned purpose of the present invention; The invention provides a kind of capacitance type touch control screen; Comprise substrate layer, induction electrode layer and protective seam, said induction electrode layer is arranged in order by some induction electrode groups to be formed, and on the parallel same side that is distributed in substrate layer; Said induction electrode group comprises forward sense electrode and negative sense induction electrode, said induction electrode be shaped as right-angled trapezium.
The described individual layer induction electrode of a kind of capacitance type touch control screen of the present invention wire structures, double-deck relatively induction electrode wiring, manufacturing process is simpler; So it is with low cost; Moreover the touch-screen thinner thickness of being made up of the individual layer induction electrode is so be worthy of popularization.
Description of drawings
Fig. 1 is a kind of embodiment according to a kind of capacitance type touch control screen according to the invention.
Fig. 2 is a synoptic diagram of the inductive layer Butut of a kind of capacitance type touch control screen according to the invention.
Fig. 3 is another synoptic diagram of the inductive layer Butut of a kind of capacitance type touch control screen according to the invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further described.
Please refer to shown in Figure 1ly, the present invention relates to a kind of capacitance type touch control screen 1, comprise substrate layer 12, induction electrode layer 11 and protective seam 10; Said induction electrode layer 11 is arranged in order by some induction electrode groups to be formed; And on the parallel same side that is distributed in substrate layer 12, more concrete is that induction electrode layer cloth 11 is put on substrate layer 12; Protective seam 10 is positioned at the outermost layer of touch screen 1, and be positioned at inductive layer 11 above.
Please refer to shown in Figure 2; A kind of embodiment for the wire structures of the individual layer induction electrode of capacitance type touch control screen of the present invention; Said induction electrode layer 11 is made up of a plurality of induction electrode groups 21, and said induction electrode group 21 has two induction electrodes 20 and 22, wherein; Said induction electrode 20 is a forward with 22 1 of induction electrodes, and another is a negative sense.Said induction electrode 20 is opposed in opposite directions with said induction electrode 22.Said positive and negative width to induction electrode 20 and 22 is alternation trend, is like an induction electrode to increase progressively trend, so another induction electrode trend that then tapers off.Forward sense electrode 20 in the said induction electrode group 21 is connected respectively on the respective pins of touch-control chip 3 through lead with negative sense induction electrode 22.
Please refer to shown in Figure 3; Another kind of embodiment for the wire structures of the individual layer induction electrode of capacitance type touch control screen of the present invention; Said induction electrode layer 11 is made up of a plurality of induction electrode groups 21, and said induction electrode group 21 has two induction electrodes 20 and 22, wherein; Said induction electrode 20 is a forward with 22 1 of induction electrodes, and another is a negative sense.Said induction electrode 20 is opposed in opposite directions with said induction electrode 22.Said positive and negative width to induction electrode 20 and 22 is alternation trend, is like an induction electrode to increase progressively trend, so another induction electrode trend that then tapers off.Forward sense electrode 20 in the said induction electrode group 21 is connected respectively on the respective pins of touch-control chip 3 through lead with negative sense induction electrode 22.
Capacitance type touch control screen of the present invention, said substrate layer, induction electrode layer and protective seam are transparent material, in order to improve the transmittance of touch screen; The general transmittance of using is than higher material; General said substrate layer is a silicon dioxide, and the induction electrode layer is ITO, and protective seam is a tempered glass.
Above character introduction and description of drawings; Realize the concrete implementation method of said a kind of capacitance type touch control screen for the present invention; Be core concept and method for a better understanding of the present invention, those skilled in the art will appreciate that all based on above-mentioned technological thought method; That makes quoting or improving, all within protection scope of the present invention.
Claims (9)
1. capacitance type touch control screen; Comprise substrate layer, induction electrode layer and protective seam; Said induction electrode layer is arranged in order by some induction electrode groups to be formed; And on the parallel same side that is distributed in substrate layer, said induction electrode group comprises forward sense electrode and negative sense induction electrode, it is characterized in that: said induction electrode be shaped as right-angled trapezium.
2. capacitance type touch control screen as claimed in claim 1 is characterized in that: said right-angled trapezium comprises that the right angle concave edge is trapezoidal or the right angle chimb is trapezoidal.
3. capacitance type touch control screen as claimed in claim 2 is characterized in that: said right angle concave edge is trapezoidal to be the right-angled trapezium of hypotenuse concavity curve.
4. capacitance type touch control screen as claimed in claim 2 is characterized in that: the trapezoidal right-angled trapezium that becomes crest curve for hypotenuse of said right angle chimb.
5. capacitance type touch control screen as claimed in claim 1 is characterized in that: said positive and negative width to induction electrode is alternation trend.
6. capacitance type touch control screen as claimed in claim 5 is characterized in that: said positive and negative one of width to induction electrode is and increases progressively trend, another trend that then tapers off.
7. capacitance type touch control screen as claimed in claim 1 is characterized in that: said induction electrode group positive and negative opposed in opposite directions to induction electrode, and be connected respectively on the respective pins of touch-control chip through lead.
8. capacitance type touch control screen as claimed in claim 1 is characterized in that: said substrate layer, induction electrode layer and protective seam are transparent material.
9. capacitance type touch control screen as claimed in claim 8 is characterized in that: said substrate layer is a silicon dioxide, and the induction electrode layer is ITO, and protective seam is a tempered glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101721988A CN102339183A (en) | 2011-06-24 | 2011-06-24 | Capacitance type touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101721988A CN102339183A (en) | 2011-06-24 | 2011-06-24 | Capacitance type touch screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102339183A true CN102339183A (en) | 2012-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101721988A Pending CN102339183A (en) | 2011-06-24 | 2011-06-24 | Capacitance type touch screen |
Country Status (1)
| Country | Link |
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| CN (1) | CN102339183A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6879930B2 (en) * | 2001-03-30 | 2005-04-12 | Microsoft Corporation | Capacitance touch slider |
| CN101561738A (en) * | 2009-06-05 | 2009-10-21 | 超级先锋有限公司 | One-dimensional contact point positioning method of capacitive touch screen/board and capacitive touch screen/board |
| CN101976162A (en) * | 2010-08-13 | 2011-02-16 | 苏州瀚瑞微电子有限公司 | Monolayer wiring method of capacitive touch screen |
-
2011
- 2011-06-24 CN CN2011101721988A patent/CN102339183A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6879930B2 (en) * | 2001-03-30 | 2005-04-12 | Microsoft Corporation | Capacitance touch slider |
| CN101561738A (en) * | 2009-06-05 | 2009-10-21 | 超级先锋有限公司 | One-dimensional contact point positioning method of capacitive touch screen/board and capacitive touch screen/board |
| CN101976162A (en) * | 2010-08-13 | 2011-02-16 | 苏州瀚瑞微电子有限公司 | Monolayer wiring method of capacitive touch screen |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120201 |