CN101882043A - Method for improving touch precision of edge of capacitance type touch screen - Google Patents
Method for improving touch precision of edge of capacitance type touch screen Download PDFInfo
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- CN101882043A CN101882043A CN 201010194333 CN201010194333A CN101882043A CN 101882043 A CN101882043 A CN 101882043A CN 201010194333 CN201010194333 CN 201010194333 CN 201010194333 A CN201010194333 A CN 201010194333A CN 101882043 A CN101882043 A CN 101882043A
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Abstract
The invention provides a method for improving the touch precision of the edge of a capacitance type touch screen, wherein the touch screen comprises a central area and an edge area, the central area comprises a plurality of central scanning lines, and the edge area comprises a plurality of edge scanning lines. The method comprises the following steps of: judging an area in which a touch point is positioned; if the touch point is positioned in the central area, calculating a corresponding coordinate according to the scanning result of the central scanning lines and using the corresponding coordinate as a valid coordinate; and if the touch point is positioned in the edge area, calculating the corresponding coordinate according to the scanning results of the central scanning lines and the edge scanning lines. The invention has the advantages that the product has simple structure, and the method can be used for accurately and rapidly improving the touch precision of the edge of the capacitance type touch screen.
Description
Technical field
The present invention relates to a kind of method of improving the touch precision of capacitance touch platen edge.
Background technology
Because capacitance touch screen is highly sensitive, and have the function that refers to touch-control more, be widely used in notebook computer at present, use more widely as contactor control devices such as PDA(Personal Digital Assistant), flat computer (Table PC), e-book.
As shown in Figure 1, during capacitance touch screen work, when regional certain of central authorities a bit was touched, as the point of the A among Fig. 1, data of each consecutive point all can participate in computing around it, so can accurately discern the touch point.When certain of touch-screen fringe region a bit is touched, as the point of the B among Fig. 1, because the data of the consecutive point that B is ordered are incomplete, thereby it is imperfect for the data of calculating the B point coordinate, prior art often adopts intrinsic function model or adds a dummy line (Dummy line) at the edge and calculates, thereby draw the coordinate that B is ordered, but this causes distortion as a result easily, and counting yield is not high.
Therefore need badly a kind of can be accurately and the apparatus and method of the touch precision of quick identification capacitance touch platen edge.
Summary of the invention
At the deficiencies in the prior art, the technical matters that the present invention solves provides a kind of method of improving the touch precision of capacitance touch platen edge, makes the marginal portion of capacitance plate when being touched, and also can obtain accurate in locating.
For solving the problems of the technologies described above, technical scheme of the present invention is achieved in that a kind of method of improving the touch precision of capacitance touch platen edge, wherein touch-screen comprises middle section and fringe region, and middle section comprises many central scan lines, and fringe region comprises some boundary scan lines, and its step is as follows: the zone of judging the place, touch point; If the touch point is positioned at middle section, then according to the scanning result of central scan line, calculate corresponding coordinate, and with it as effective coordinate.If the touch point is positioned at fringe region, then, calculate corresponding coordinate according to the scanning result of central scan line and boundary scan line.
Beneficial effect of the present invention is as follows: product structure is simple, can improve the touch precision of identification capacitance touch platen edge accurately and rapidly.
Description of drawings
Fig. 1 is the synoptic diagram of calculating of the prior art touch point coordinate;
Fig. 2 is the configuration diagram of the embodiment of the invention;
Fig. 3 is the process flow diagram of embodiment of the invention coordinate Calculation;
Fig. 4 is the synoptic diagram of embodiment of the invention touch point.
Embodiment
The invention will be further described below in conjunction with drawings and Examples:
As shown in Figure 2, capacitive touch screen 100 is divided into two zones, i.e. middle section and fringe region (annular rings part), and the sweep trace of respective regions is central scan line and boundary scan line.When having detected touch on the capacitance touch screen 100, the sweep trace around the touch point all will scan, and participate in calculating the coordinate of this touch point.For example, when the touch point is the C point,, can draws C point 4 scanning capacitance value on every side, and then calculate the coordinate that C is ordered by the scanning of central scan line 111,112,113,114,115,116.If the touch point is the D point, then, calculate the coordinate that D is ordered according to the scanning result of boundary scan line 121 and central scan line 114,115,116,117,118.
Please consult Fig. 2, Fig. 3 simultaneously.When the user touched touch-screen 100, touch-screen 100 scanning touch point position (301) judged that then this touch point is whether at the fringe region (303) of appointment; If not edge region, such as C point is then calculated touch point coordinate (302),,, can calculate the coordinate of touch point then according to the scanning result of central scan line 111,112,113,114,115,116 because the touch point is positioned at middle section.If the touch point is at the fringe region of appointment, judge further then whether the touch point is positioned on the boundary scan line 121 of fringe region (305), if the touch point is not on boundary scan line 121, then, calculate the coordinate (309) of touch point according to the scanning result of central scan line 114,115,116,117,118 and boundary scan line 121; If the touch point is on boundary scan line 121, such as the E point, then the coordinate of corresponding touch point is not as effective coordinate (307).
In the said process, when the touch point is positioned at fringe region, such as during the D point because boundary scan line 121 and central scan line 115 are arranged, thus can obtain that D orders around 4 scanning capacitance value, so, can obtain the coordinate that D is ordered rapidly and accurately.In addition, when the touch point is the E point, though can pass through boundary scan line 121, central scan line 115,116,117,119, and function model of the prior art is extrapolated the result, but the user can be by being provided with coordinate that E is ordered not as effective coordinate, and promptly touching the operation that E orders is invalid operation.Thereby, at the coordinate that calculates touch-screen fringe region touch point, such as during the touch point on the central scan line 117, need not additionally call function model of the prior art, directly calculate corresponding coordinate, thereby improved precision and speed.1
The present invention is not limited to single touch point, and is also suitable equally for a plurality of touch points, only needs two of calculating and plural coordinate to get final product.Be example with two touch points below, implementing procedure of the present invention is described.As shown in Figure 4, when touch-screen 100 detects middle section two touch points is arranged, such as H, I, then can scan by corresponding central scan line, calculate this coordinate of 2 then.Equally,, then scan jointly, calculate and export the coordinate that I, J are ordered by corresponding central scan line and boundary scan line if two touch points are worker, J.If touch-screen 100 detected two touch points, when being F, G point, then operate according to user's appointment, for example only with the G point as effective coordinate.If touch-screen 100 detected touch points are on the boundary scan line, such as F, K point, then the coordinate of these two touch points all not as effective coordinate, same, also can be specified by the user, the line operate of going forward side by side by this operation.
Middle section among the present invention and fringe region can be by User Defineds, thereby can design according to the different hobby of user, satisfy user's demand.
The above only is a preferable possible embodiments of the present invention, and is non-so promptly limit to claim of the present invention, so the equivalent structure that uses instructions of the present invention and diagramatic content to do such as changes, all in like manner is included in the scope of the present invention.
Claims (8)
1. method of improving the touch precision of capacitance touch platen edge, wherein said touch-screen comprises middle section and fringe region, and described middle section comprises many central scan lines, and described fringe region comprises some boundary scan lines, and its step is as follows:
Judge the zone at place, described touch point;
If described touch point is positioned at described middle section, then according to the scanning result of described central scan line, calculate corresponding coordinate, and with it as effective coordinate;
If described touch point is positioned at described fringe region, then, calculate corresponding coordinate according to the scanning result of central scan line and boundary scan line.
2. the method for improving the touch precision of capacitance touch platen edge as claimed in claim 1 is characterized in that described touch-screen comprises at least four boundary scan lines.
3. the method for improving the touch precision of capacitance touch platen edge as claimed in claim 1 is characterized in that described middle section and fringe region are specified by the user.
4. the method for improving the touch precision of capacitance touch platen edge as claimed in claim 1 is characterized in that, if described touch point has only one, and on described boundary scan line, then the coordinate of described touch point is as invalid coordinates.
5. the method for improving the touch precision of capacitance touch platen edge as claimed in claim 1, it is characterized in that, if described touch point is more than or equal to two, and have a touch point at least on described boundary scan line, then specify the coordinate that is positioned at the touch point on the described boundary scan line whether as effective coordinate by the user.
6. capacitive touch screen that improves the touch precision at edge, described touch-screen with comprise many central scan lines, it is characterized in that described touch-screen also comprises:
Some boundary scan lines are positioned at the fringe region of described touch-screen appointment, are used for the coordinate of detected touch point.
7. touch-screen as claimed in claim 6 is characterized in that, described touch-screen comprises at least four boundary scan lines.
8. touch-screen as claimed in claim 6 is characterized in that, described boundary scan line is positioned at side outside the described central scan line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010194333 CN101882043A (en) | 2010-06-08 | 2010-06-08 | Method for improving touch precision of edge of capacitance type touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010194333 CN101882043A (en) | 2010-06-08 | 2010-06-08 | Method for improving touch precision of edge of capacitance type touch screen |
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| CN101882043A true CN101882043A (en) | 2010-11-10 |
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| CN 201010194333 Pending CN101882043A (en) | 2010-06-08 | 2010-06-08 | Method for improving touch precision of edge of capacitance type touch screen |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102236497A (en) * | 2011-07-28 | 2011-11-09 | 华为终端有限公司 | Method and device for processing pixel points in touch screen |
| CN103076927A (en) * | 2011-10-25 | 2013-05-01 | 夏普株式会社 | Optical touch panel apparatus |
| WO2013189227A1 (en) * | 2012-06-20 | 2013-12-27 | 中兴通讯股份有限公司 | Method for reporting coordinate point of touch screen and mobile terminal |
| CN104777948A (en) * | 2014-01-13 | 2015-07-15 | 上海和辉光电有限公司 | Method and device for improving accuracy of edge coordinates of projection-type capacitive touch panel |
| CN105573545A (en) * | 2015-11-27 | 2016-05-11 | 努比亚技术有限公司 | Gesture correction method, apparatus and gesture input processing method |
| CN109445636A (en) * | 2018-10-31 | 2019-03-08 | 上海海栎创微电子有限公司 | A kind of self-capacitance touch screen edge touch coordinate compensation method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1326564A (en) * | 1998-09-15 | 2001-12-12 | 艾利森公司 | Apparatus and method for moving objects on touchscreen display |
| CN101000530A (en) * | 2006-01-11 | 2007-07-18 | 三星电子株式会社 | Display device and driving method thereof |
| CN101706699A (en) * | 2009-11-17 | 2010-05-12 | 深圳市汇顶科技有限公司 | Linear processing method and system of coordinates of touched point at marginal area of touch screen |
-
2010
- 2010-06-08 CN CN 201010194333 patent/CN101882043A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1326564A (en) * | 1998-09-15 | 2001-12-12 | 艾利森公司 | Apparatus and method for moving objects on touchscreen display |
| CN101000530A (en) * | 2006-01-11 | 2007-07-18 | 三星电子株式会社 | Display device and driving method thereof |
| CN101706699A (en) * | 2009-11-17 | 2010-05-12 | 深圳市汇顶科技有限公司 | Linear processing method and system of coordinates of touched point at marginal area of touch screen |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102236497A (en) * | 2011-07-28 | 2011-11-09 | 华为终端有限公司 | Method and device for processing pixel points in touch screen |
| CN102236497B (en) * | 2011-07-28 | 2013-12-18 | 华为终端有限公司 | Method and device for processing pixel points in touch screen |
| CN103076927A (en) * | 2011-10-25 | 2013-05-01 | 夏普株式会社 | Optical touch panel apparatus |
| CN103076927B (en) * | 2011-10-25 | 2016-04-27 | 夏普株式会社 | Optical touch panel device |
| WO2013189227A1 (en) * | 2012-06-20 | 2013-12-27 | 中兴通讯股份有限公司 | Method for reporting coordinate point of touch screen and mobile terminal |
| US9569026B2 (en) | 2012-06-20 | 2017-02-14 | Zte Corporation | Method for reporting coordinate point of touch screen and mobile terminal |
| CN104777948A (en) * | 2014-01-13 | 2015-07-15 | 上海和辉光电有限公司 | Method and device for improving accuracy of edge coordinates of projection-type capacitive touch panel |
| CN104777948B (en) * | 2014-01-13 | 2018-04-17 | 上海和辉光电有限公司 | Improve the method and device of Projected capacitive touch panel edge coordinate accuracy |
| CN105573545A (en) * | 2015-11-27 | 2016-05-11 | 努比亚技术有限公司 | Gesture correction method, apparatus and gesture input processing method |
| CN109445636A (en) * | 2018-10-31 | 2019-03-08 | 上海海栎创微电子有限公司 | A kind of self-capacitance touch screen edge touch coordinate compensation method |
| CN109445636B (en) * | 2018-10-31 | 2020-08-14 | 上海海栎创微电子有限公司 | Edge touch coordinate compensation method for self-capacitance touch screen |
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Application publication date: 20101110 |