CN102012765A - Scanning method of touch screen - Google Patents
Scanning method of touch screen Download PDFInfo
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- CN102012765A CN102012765A CN 201110000224 CN201110000224A CN102012765A CN 102012765 A CN102012765 A CN 102012765A CN 201110000224 CN201110000224 CN 201110000224 CN 201110000224 A CN201110000224 A CN 201110000224A CN 102012765 A CN102012765 A CN 102012765A
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Abstract
The invention relates to a scanning method of a touch screen. The method comprises the following steps: firstly, dividing the touch screen into a plurality of regions; secondly, determining inoperative scanning lines according to the sizes of the regions; and finally, scanning and judging the position of the touched region according to the scanning result. The scanning method in the invention is simple, the scanning speed is obviously accelerated; and users can set the region of the touch screen and the inoperative scanning lines according to need, and the touched region can be fast judged.
Description
Technical field
The present invention relates to a kind of scan method of touch-screen, refer in particular to the scan method that on touch-screen, does not need accurately to locate touch location.
Background technology
Along with the day crescent benefit of technology, most electronic installation, for example: electronic installations such as mobile computer, mobile phone or portable multimedia player, dispose contact panel, usually to replace the input interface of conventional keyboard as a new generation.Touch-screen roughly is divided into resistance-type, condenser type, infrared-type and ultrasonic formula etc., and wherein, present stage is modal product with resistive touch screen and capacitive touch screen.
Thereby capacitive touch screen be by touch object as conductive material such as finger, pointer near or the touching touch-screen capacitance of touch-screen is changed.When touch-screen detects capacitance variations, just can judge the position of touching touch-screens such as finger, pointer, and carry out the pairing touching operation of touch position.Because capacitance type touch-control panel has the characteristic that refers to touch-control more, the operation of hommization can be provided, thereby be subjected to the favor in market gradually.
With projected capacitive touch screen, its scan mode judges according to scanning result which sensing region is by close or touching again after scanning whole sensing regions successively.And then according to by near or the sensing region of touching, calculate finger or contact tool institute near or single-point or the multi-point touch position touched.Because above-mentioned scan mode is that whole sensing regions are lined by line scan, if when the sensing region number is too much, then can extend the sweep time of touch-screen and operand also can increase, cause it to carry out efficient and also can significantly reduce.And in practical operation,, do not need accurate localization to go out the particular location at place such as use to some menus, there is no need if still still adopt the mode of lining by line scan just to seem.
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 be how to provide a kind of new can time saving scan method.
In order to realize above-mentioned purpose of the present invention, the invention provides a kind of touch screen scanning method, it may further comprise the steps: at first, described touch-screen is divided into several regions; Secondly, determine idle sweep trace according to the size in described zone; At last, begin scanning, judge the position of touch area according to scanning result.
The scan method of touch-screen of the present invention, it determines idle sweep trace, so sweep velocity is obviously accelerated in advance at the characteristics that do not need accurately to locate touch location; And method of the present invention is simple, and the user can set zone and idle sweep trace of touch-screen as required, judges the zone of touch fast.
Description of drawings
Fig. 1 is an embodiment in the touch screen scanning method of the present invention;
Fig. 2 is another embodiment of touch screen scanning method of the present invention.
Embodiment
The present invention is further illustrated below in conjunction with drawings and Examples.
Touch screen scanning method of the present invention at first is divided into several zones with described touch-screen 10, and all there is function corresponding in each zone in described several zones, when the user touches corresponding zone, just can start this regional corresponding function.When touch object such as this touch-screen 10 of finger touches, hypothesis touches regional 1 place earlier, because the area in zone is set at bigger than finger, so be positioned at this zone and can show that this zone is the zone of finger touches as long as detect whole or major part that place, finger touches position produces induction point.
Now being that example specifies with being divided into eight zones on the touch-screen 10, because this moment, touch-screen 10 was divided into eight zones, size according to described zone can be determined idle sweep trace thus, as definable sweep trace Y1, Y3, Y5... work, and sweep trace Y2, Y4, Y6... do not work, so when finger touches to regional 1 the time, the finger touches position can produce several induction points, so we set a threshold values in advance, induction point greater than described threshold values is kept, the induction point less than described threshold values is given up.When all induction points or most of induction point during, then think to touch this location all in a certain zone.Please refer to shown in Figure 1ly, when finger touches can produce several induction points A1, B1, C1 to regional 1 the time, the size of detecting each point capacitance as can be known, the capacitance of induction point A1, B1 is greater than threshold values, and the capacitance of induction point C1 so cast out induction point C1, is preserved induction point A1 and B1 less than threshold values.Because all in zone 1, then zone 1 is exactly the position, region of touch point for induction point A1 and B1 at this moment.
And if finger touches has arrived each regional boundary, then need to judge the influence value whether in each zone pairing capacitance of each induction point is produced greater than other regional place induction point, then the zone of the capacitance sum maximum of all induction points is exactly the band of position of finger touches.Specifically can be with reference to figure 2, as the position of finger touches just at the boundary in zone 1 and 2, the induction point that produce this moment has A2, B2, C2, D2, E2, and the capacitance that detects induction point E2 is less than pre-set threshold value, so abandon induction point E2, so only consider induction point A2, B2, C2, D2, because induction point A2 and B2 are in zone 1, induction point C2 and D2 are in zone 2, and the capacitance sum of induction point A2 and B2 is less than the capacitance sum of induction point C2 and D2, so can judge the position of the zone of finger touches in zone 2.
The above-mentioned disposal route of finger when place, two zone boundaries of having discussed, in like manner if finger is in the border in zone more than two, as relate to four zones, then need too earlier to judge that whether the pairing capacitance of induction point is greater than threshold values, for the electric capacity sum of adding up its region greater than the induction point of threshold values, each induction point the zone of corresponding capacitance maximum be exactly the zone of finger touches.
The present invention adopts and pre-determines idle sweep trace, so can judge the approximate location in touching zone according to touch-screen 10 zones of dividing in advance.If set idle number of scanning lines in advance is zero, thereby the scan method of this touch-screen 10 will scan the particular location of judging touch successively according to classic method at this moment.In order to be implemented in arbitrarily conversion mutually in these several scan modes according to user's needs, so for the scan method of this special circumstances, the first step of the present invention still is that described touch-screen 10 is divided into several regions; Secondly, determine idle sweep trace according to the size in described zone; Then, begin scanning, if described idle sweep trace is zero, thereby expression needs scanning successively to judge the position of touch area; If described idle sweep trace greater than zero, then needs to judge according to scanning result the position of touch area.
Thereby above-mentionedly judging the position of touch area by scanning successively, because scanning can be that to line by line scan also can be point by point scanning successively, is exactly the exact position so detect the position of touch points this moment.Just can conversion arbitrarily between scan mode of the present invention and traditional scan mode by said method.
Claims (10)
1. the scan method of a touch-screen, it may further comprise the steps:
At first, described touch-screen is divided into several regions;
Secondly, determine idle sweep trace according to the size in described zone;
At last, begin scanning, judge the position of touch area according to scanning result.
2. the method for claim 1 is characterized in that: can adjust as required when described touch-screen is divided into several regions.
3. the method for claim 1 is characterized in that: described determine idle sweep trace after, need detecting touch position place to produce the capacitance of induction point.
4. method as claimed in claim 3 is characterized in that: shown in the capacitance of induction point need be greater than default threshold values.
5. as claim 3 or 4 described methods, it is characterized in that: if described induction point all in a certain zone, thinks that then this zone is exactly the touch location zone.
6. as claim 3 or 4 described methods, it is characterized in that:, need then to judge that pairing zone was exactly the touch location zone when capacitance sum of induction point in the above-mentioned zone was maximum if described induction point is distributed in several zones.
7. as claim 1 or 3 described methods, it is characterized in that: described idle sweep trace user can set as required in advance.
8. the scan method of a touch-screen, it may further comprise the steps:
At first, described touch-screen is divided into several regions;
Secondly, determine idle sweep trace according to the size in described zone;
At last, begin scanning, if described idle sweep trace is zero, thereby expression needs scanning successively to judge the position of touch area; If described idle sweep trace greater than zero, then needs to judge according to scanning result the position of touch area.
9. method as claimed in claim 8 is characterized in that: described scanning successively is meant lines by line scan.
10. method as claimed in claim 8 is characterized in that: described scanning successively is meant point by point scanning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110000224 CN102012765A (en) | 2011-01-04 | 2011-01-04 | Scanning method of touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110000224 CN102012765A (en) | 2011-01-04 | 2011-01-04 | Scanning method of touch screen |
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| CN102012765A true CN102012765A (en) | 2011-04-13 |
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| CN 201110000224 Pending CN102012765A (en) | 2011-01-04 | 2011-01-04 | Scanning method of touch screen |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103105983A (en) * | 2011-11-09 | 2013-05-15 | 三星电子株式会社 | Method and apparatus for improving touch sensitivity of touch screen panel |
| CN103135816A (en) * | 2011-11-28 | 2013-06-05 | 联咏科技股份有限公司 | Method of controlling touch panel |
| WO2013086788A1 (en) * | 2011-12-14 | 2013-06-20 | 中兴通讯股份有限公司 | Capacitive touch screen response method and device |
| CN103197794A (en) * | 2013-03-05 | 2013-07-10 | 北京京东方光电科技有限公司 | Method and device for touch detecting |
| CN103235664A (en) * | 2013-04-27 | 2013-08-07 | 深圳市金立通信设备有限公司 | Terminal and control method of touch screen |
| CN106843587A (en) * | 2016-11-18 | 2017-06-13 | 友达光电股份有限公司 | touch control method |
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| US4571454A (en) * | 1982-11-11 | 1986-02-18 | Sony Corporation | Coordinate position digitizing system |
| CN101539821A (en) * | 2009-01-05 | 2009-09-23 | 宇龙计算机通信科技(深圳)有限公司 | Method and system for generating handwriting area of touch screen and touch screen device |
| CN101551729A (en) * | 2009-05-13 | 2009-10-07 | 广东威创视讯科技股份有限公司 | Infrared touch scanning method and control device, infrared touch system of the same |
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2011
- 2011-01-04 CN CN 201110000224 patent/CN102012765A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4571454A (en) * | 1982-11-11 | 1986-02-18 | Sony Corporation | Coordinate position digitizing system |
| CN101539821A (en) * | 2009-01-05 | 2009-09-23 | 宇龙计算机通信科技(深圳)有限公司 | Method and system for generating handwriting area of touch screen and touch screen device |
| CN101551729A (en) * | 2009-05-13 | 2009-10-07 | 广东威创视讯科技股份有限公司 | Infrared touch scanning method and control device, infrared touch system of the same |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103105983A (en) * | 2011-11-09 | 2013-05-15 | 三星电子株式会社 | Method and apparatus for improving touch sensitivity of touch screen panel |
| CN103105983B (en) * | 2011-11-09 | 2017-07-07 | 三星电子株式会社 | Method and apparatus for improving the touch sensitivity of touch panel |
| CN103135816A (en) * | 2011-11-28 | 2013-06-05 | 联咏科技股份有限公司 | Method of controlling touch panel |
| WO2013086788A1 (en) * | 2011-12-14 | 2013-06-20 | 中兴通讯股份有限公司 | Capacitive touch screen response method and device |
| CN103197794A (en) * | 2013-03-05 | 2013-07-10 | 北京京东方光电科技有限公司 | Method and device for touch detecting |
| WO2014134863A1 (en) * | 2013-03-05 | 2014-09-12 | 北京京东方光电科技有限公司 | Touch detection method and touch detection device |
| US9274665B2 (en) | 2013-03-05 | 2016-03-01 | Beijing Boe Optoelectronics Technology Co., Ltd. | Touch detecting method and touch detecting apparatus |
| CN103235664A (en) * | 2013-04-27 | 2013-08-07 | 深圳市金立通信设备有限公司 | Terminal and control method of touch screen |
| CN106843587A (en) * | 2016-11-18 | 2017-06-13 | 友达光电股份有限公司 | touch control method |
| CN106843587B (en) * | 2016-11-18 | 2020-02-18 | 友达光电股份有限公司 | Touch control method |
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Application publication date: 20110413 |