CN102169397A - Wiring method of capacitance touch screen - Google Patents
Wiring method of capacitance touch screen Download PDFInfo
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- CN102169397A CN102169397A CN2010105504389A CN201010550438A CN102169397A CN 102169397 A CN102169397 A CN 102169397A CN 2010105504389 A CN2010105504389 A CN 2010105504389A CN 201010550438 A CN201010550438 A CN 201010550438A CN 102169397 A CN102169397 A CN 102169397A
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Abstract
The invention relates to a wiring method of a capacitance touch screen. The touch screen comprises a round substrate. The wiring method comprises the following steps of: firstly, determining a center point of the substrate; then, dividing the substrate into a plurality of parts; and finally, forming a plurality of fan-shaped scanning lines by the plurality of parts. The wiring method of the capacitance touch screen has simple steps, realizes layout of the round capacitance touch screens and provides more diversified selections for a user who uses a touch device.
Description
Technical field
The present invention relates to a kind of touch screen wiring method, refer in particular to the capacitance touch screen wiring method.
Background technology
In recent years, touch screen has developed to the people exchanges simple and the most direct mode mutually with computer, because of its in conjunction with input equipment and real world devices, and need not the input equipment of mouse or keyboard and so on, so being applied in the every field more and more widely.And capacitive touch screen utilizes the finger of human body and the electric capacity that screen forms, and does not need pressure fully so operate, and just responds as long as finger is run into screen, so easy operating.In view of above-mentioned advantage, so the touch-control product of Chu Xianing all uses the capacitive touch control products mostly in the market.
Though capacitive touch screen provides mode of operation more easily for the mankind, but almost existing all touch screens all are by square shape, so its wiring is to be realized by at least one group of nesa coating arranging along X, Y both direction respectively on the glass substrate of square shape and dielectric film.And equate owing to the distance between each bar sweep trace on the glass substrate of square shape, so can guarantee the mutual coupling between each bar sweep trace, so behind the finger touches touch screen, just can determine the particular location of pointing according to the data that detected on X, the Y direction.Present this wiring method is the commonplace method of industry, but this kind wiring method but cannot be used on the touch screen of other shapes, as circle, and ellipse etc.Because the touch screen upper tracer distance each other of this kind shape is variant,, so also just can't utilize above-mentioned wiring method on similar circular touch screen, to detect the particular location of finger touches so can not reach the requirement of mutual coupling.
In order to satisfy the various appearances requirement of the corresponding touch screen of modern, therefore need solve above problem for users provide a kind of easier method.
Summary of the invention
The actual technical matters to be solved of the present invention is how a kind of wiring method at similar circular capacitive touch screen is provided.
In order to realize above-mentioned purpose of the present invention, the invention provides a kind of wiring method of capacitance touch screen, described touch-screen comprises the substrate of a similar toroidal, its wiring method is as follows: the central point of at first determining this substrate; Secondly, described substrate is divided into some equal portions; At last, constitute the plurality of sector sweep trace by above-mentioned some equal portions.
The wiring method of capacitive touch screen of the present invention, not only step is simple, and has realized the layout method of similar toroidal capacitance touch screen, provides more diversified selection for the user is suitable for contactor control device.
Description of drawings
Fig. 1 is an embodiment of wire laying mode of the present invention.
Embodiment
The present invention is further illustrated below in conjunction with drawings and Examples.
Please refer to shown in Figure 1, the present invention relates to a kind of capacitive touch screen 1, this touch-screen 1 mainly comprises a substrate 10 and the nesa coating (indicating) and the some sweep trace N that are positioned on the substrate, described substrate 10 similar circles, can be circular or oval, so the shape of corresponding this touch-screen 1 that forms also is similar to a circle.Described nesa coating is positioned on the substrate 10, and relatively more commonly used is ITO (indium tin oxide) at present; Described touch-screen 1 has geometric center point O, and sweep trace is that central point is fan-shaped distribution with this geometric center point O.
At above-mentioned touch-screen 1, when this touch-screen 1 of finger touches, in order to detect the particular location of finger touches this moment accurately, so below us be that example describes the step to this kind wiring in detail with the ellipse with special shape.
At first determine the geometric center point O of the capacitance touch screen 1 of this similar circle; Be that central point is divided into some N equal portions with described substrate with this geometric center point O then, just constituted some N sector display lines (wherein, described N be meant 1,2,3.....) by above-mentioned some N equal portions; If the position of place sector display line is on n bar sweep trace during this substrate 1 of finger touches, so again according to adjacent two sweep traces with it: the relation of electric capacity between n-1 bar and the n+1 bar, just can calculate finger touches position and the angle ∮ of horizontal direction and the radius value r of finger touches position at this moment.Simultaneously, need to guarantee that the fan-shaped arc length of an above-mentioned N equal portions is arranged on less than in the preset threshold value.So, just the particular location of finger touches can have been determined according to angle ∮ and radius r.
Why the arc length that above-mentioned N equal portions are fan-shaped all is set to less than a preset threshold value, exactly when guaranteeing this touch-screen of finger touches, can touch at least one sweep trace, therefore described threshold value is meant the parameter relevant with finger width, so the user can set adjustment in advance.Like this when the user touches on this touch-screen 1, just can guarantee that finger touches on a few the sweep traces simultaneously, thereby can utilize the relation of electric capacity between the adjacent scanning lines to calculate the particular location of finger.
To sum up, the wiring method of capacitive touch screen of the present invention, described touch-screen comprises the substrate of a similar toroidal, its wiring method is as follows: at first, determine the central point of this substrate; Secondly, described substrate is divided into some equal portions; At last, constitute the plurality of sector sweep trace by above-mentioned some equal portions.
Wiring method of the present invention not only is applicable to ellipse, because circle also is oval-shaped a kind of form, so also be applicable to circle certainly; For substrate of the present invention can be that glass substrate also can be a pcb board, and no matter the present invention is that capacitive touch screen or capacitive type touch pad can be made similar toroidal like this.
Claims (10)
1. the wiring method of a capacitance touch screen, described touch-screen comprises the substrate of a similar toroidal, its wiring method is as follows:
At first, determine the central point of this substrate;
Secondly, described substrate is divided into some equal portions;
At last, constitute the plurality of sector sweep trace by above-mentioned some equal portions.
2. the method for claim 1 is characterized in that: the fan-shaped arc length of described equal portions is less than a preset threshold value.
3. method as claimed in claim 2 is characterized in that: described threshold value is meant the parameter relevant with finger width.
4. the method for claim 1, it is characterized in that: the position of place sector display line is in certain during as if this substrate of finger touches, according to the relation of electric capacity between adjacent two sweep traces with it, can calculate finger touches position and the angle of horizontal direction and the radius value of finger touches position at this moment so again.
5. method as claimed in claim 4 is characterized in that: the particular location that can determine finger touches according to above-mentioned angle and radius value.
6. the method for claim 1, it is characterized in that: described central point is meant geometric center point.
7. the method for claim 1, it is characterized in that: the substrate of described similar toroidal can be circular substrate or oval substrate.
8. as claim 1 or 7 described methods, it is characterized in that: described substrate can be that glass substrate also can be a pcb board.
9. the method for claim 1, it is characterized in that: described capacitive touch screen also comprises nesa coating.
10. method as claimed in claim 9 is characterized in that: described nesa coating can be ITO.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105504389A CN102169397A (en) | 2010-11-19 | 2010-11-19 | Wiring method of capacitance touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105504389A CN102169397A (en) | 2010-11-19 | 2010-11-19 | Wiring method of capacitance touch screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102169397A true CN102169397A (en) | 2011-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105504389A Pending CN102169397A (en) | 2010-11-19 | 2010-11-19 | Wiring method of capacitance touch screen |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103425362A (en) * | 2012-05-23 | 2013-12-04 | 南京华睿川电子科技有限公司 | Round projected capacitive touch screen |
| US10007384B2 (en) | 2014-08-14 | 2018-06-26 | Samsung Display Co., Ltd. | Touch screen panel |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7046230B2 (en) * | 2001-10-22 | 2006-05-16 | Apple Computer, Inc. | Touch pad handheld device |
| CN101201715A (en) * | 2003-11-25 | 2008-06-18 | 苹果电脑公司 | Touch pad for handheld device |
| CN101477418A (en) * | 2008-01-04 | 2009-07-08 | 群康科技(深圳)有限公司 | Touching control panel |
-
2010
- 2010-11-19 CN CN2010105504389A patent/CN102169397A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7046230B2 (en) * | 2001-10-22 | 2006-05-16 | Apple Computer, Inc. | Touch pad handheld device |
| CN101201715A (en) * | 2003-11-25 | 2008-06-18 | 苹果电脑公司 | Touch pad for handheld device |
| CN101477418A (en) * | 2008-01-04 | 2009-07-08 | 群康科技(深圳)有限公司 | Touching control panel |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103425362A (en) * | 2012-05-23 | 2013-12-04 | 南京华睿川电子科技有限公司 | Round projected capacitive touch screen |
| US10007384B2 (en) | 2014-08-14 | 2018-06-26 | Samsung Display Co., Ltd. | Touch screen panel |
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Application publication date: 20110831 |