CN104166478A - Touch positioning method and device of touch screen - Google Patents
Touch positioning method and device of touch screen Download PDFInfo
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- CN104166478A CN104166478A CN201410393624.4A CN201410393624A CN104166478A CN 104166478 A CN104166478 A CN 104166478A CN 201410393624 A CN201410393624 A CN 201410393624A CN 104166478 A CN104166478 A CN 104166478A
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Abstract
The invention provides a touch positioning method and device of a touch screen. Current output by four electrodes of the touch screen is amplified, a calculation control module of the touch screen can accurately obtain the distance between a touch point and the electrodes, and therefore the touch point is calculated out, the problems that as water vapor exists on an existing touch screen, a calculation control module of the touch screen can not position the touch point accurately, and a mobile terminal can not execute touch operation are solved, and user experience is improved when a user uses the mobile terminal with the touch screen.
Description
Technical field
The present invention relates to moving communicating field, in particular a kind of touch localization method of touch-screen and device.
Background technology
At present, with the mobile terminal of touch-screen, more more convenient than button while using due to it, so be more and more subject to user's favor.
User, when using mobile terminal, carries out operations by touch-screen, so can whether the location of touch-screen accurately directly complete smoothly and produce directly impact operation.
But in prior art, intelligent mobile terminal is not also accomplished maturation completely in the technology of touch-screen, for example when the time of making a phone call is longer, while having steam on touch-screen, especially winter, on touch-screen, be more prone to accumulate steam, on touch-screen, amass while having steam, the control system of touch-screen cannot realize accurately touch point is positioned, and the touch instruction that therefore also cannot send according to user operates mobile terminal.
Therefore, prior art awaits further improvement.
Summary of the invention
In view of above-mentioned weak point of the prior art, the object of the invention is to provide for user a kind of touch localization method and device of touch-screen, to solve in prior art with mobile terminal of touch screen to cause realizing because there is steam on touch-screen, the accurately problem of location is carried out in touch point when carrying out touch operation.
The technical scheme that technical solution problem of the present invention adopts is as follows:
A touch localization method for touch-screen, wherein, comprising:
A, detection user send after touch operation, and whether the current value of four electrodes outputs on four angles of touch-screen is steady state value; If not steady state value is carried out B, if steady state value is carried out C;
B, the voltage of described electrode is boosted and after voltage stabilizing processes, again obtains the current value of four electrodes outputs, execution step C;
C, according to the scale-up factor of the described current value of four electrodes output, touch point is positioned.
The touch localization method of described touch-screen, wherein, described step C comprises:
When the current value that the output of four electrodes detected is steady state value, according to the scale-up factor between the current value of four electrode outputs, extrapolate described touch point to the scale-up factor of distance between four electrodes of touch-screen, according to the scale-up factor of described distance, orient touch point.
The touch localization method of described touch-screen, wherein, also comprises at described step B:
When current value is not steady state value, exports high level signal control unlatching and described electrode voltage is boosted and voltage stabilizing processing.
The touch localization method of described touch-screen, wherein, described step B also comprises:
After described electrode voltage boosts and processes with voltage stabilizing, current value to four electrode outputs detects and controls, the current value boosting if detect after processing with voltage stabilizing keeps fixing, and output low level signal controlling is closed boosting and voltage stabilizing processing to described electrode voltage.
A touch positioning device for touch-screen, wherein, comprising: connected current detection module, boost Voltage stabilizing module and calculation control module successively;
Described current detection module, sends after touch operation for detection of user, and whether the current value of four electrode outputs on four angles of touch-screen is steady state value;
The described Voltage stabilizing module that boosts, for when current value is not steady state value, boosts and after voltage stabilizing processes, again obtains the current value of four electrodes outputs the voltage of described electrode;
Described calculation control module, for when described current value is steady state value, the scale-up factor according to described current value, positions touch point.
The touch positioning device of described touch-screen, wherein, described calculation control module also comprises scale-up factor acquiring unit, while being steady state value for detection of the current value to four electrode outputs, according to the scale-up factor between the current value of four electrode outputs, extrapolate described touch point to the scale-up factor of distance between four electrodes of touch-screen, according to the scale-up factor of described distance, orient touch point.
The touch positioning device of described touch-screen, wherein, described calculation control module also comprises controlling opens unit;
Unit is opened in described control, for when current value is not steady state value, exports high level signal control unlatching and described electrode voltage is boosted and voltage stabilizing processing.
The touch positioning device of described touch-screen, wherein, described calculation control module also comprises control closing unit;
Described control closing unit, current value for four electrode outputs after processing with voltage stabilizing boosting detects and controls, the current value boosting if detect after processing with voltage stabilizing keeps fixing, and output low level signal controlling is closed boosting and voltage stabilizing processing to described electrode voltage.
Beneficial effect, the touch localization method of a kind of touch-screen provided by the present invention and device, it by whether the electric current of four electrode outputs of touch-screen decay is occurred to detects, if do not decay, it is a steady state value, touch-screen can normally accurately be located touch point, if decay, illustrate that now touch-screen can not accurately accurately be located described touch point, need to amplify processing to the current signal of this decay, that is to say that the voltage stabilizing of boosting is processed to four electrodes, increase the current signal of electrode output, thereby make the described touch point that flow to that electric current can be stable, the accurate location of realization to touch point.
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Accompanying drawing explanation
Fig. 1 is the flow chart of steps of the touch localization method of a kind of touch-screen of the present invention.
Fig. 2 is the structure principle chart of the touching and positioning system of a kind of touch-screen of the present invention.
Embodiment
For making object of the present invention, technical scheme and advantage clearer, clear and definite, referring to accompanying drawing, developing simultaneously, the present invention is described in more detail for embodiment.Should be appreciated that specific embodiment described herein, only for explaining the present invention, is not intended to limit the present invention.
The invention provides a kind of touch localization method of touch-screen, as shown in Figure 1, said method comprising the steps of:
S1, detection user send after touch operation, and whether the current value of four electrodes outputs on four angles of touch-screen is steady state value; If not steady state value is carried out S2, if steady state value is carried out S3.
When user being detected, send after touch operation, whether the electric current that detects four electrode outputs is steady state value, if illustrate that this electric current does not have because the water containing on touch-screen weakens, performs step S2, otherwise the electric current that electrode output is described is weakened, execution step S3.
S2, the voltage of described electrode is boosted and after voltage stabilizing processes, again obtains the current value of four electrodes outputs, execution step S3.
If current value is weakened, need the processing of first boosting of the voltage on electrode, make the larger electric current of electrode output of touch-screen, also need described voltage to carry out voltage stabilizing processing, avoid because spread of voltage causes the unstable of output current.
Voltage on described electrode is boosted and after voltage stabilizing processes, the current decay causing because of steam is solved to the problem that cannot flow to touch point, the fixing current value of output can be detected, continue execution step S3, again according to described current value, touch point be positioned.
The described current value of S3, four electrodes getting, calculates the scale-up factor of four current values, extrapolates the position of touch point by described scale-up factor.
Concrete, to user, on touch-screen, send after touch control operation, the current value that four angles of its touch-screen produce detects, when the current value of four electrodes output being detected and be steady state value, according to the principle of work of capacitive touch screen, the current value that four electrodes of touch-screen are exported and the distance relation in direct ratio of touch point to four electrode, therefore after getting described current value, can obtain according to the proportionate relationship of described current value the scale-up factor of touch point to four electrode distance, according to the scale-up factor of described distance, realize the accurate location to touch point.
In order more accurately described touch point to be positioned, based on the above method, can also there is following improvement: described step S2 also comprises:
When current value is not steady state value, exports high level signal control unlatching and described electrode voltage is boosted and voltage stabilizing processing, thereby can to electrode voltage, boost as required easily and voltage stabilizing processing.
Described step S2 also comprises:
After processing with voltage stabilizing boosting, the current value of four electrode outputs detects and controls, the current value boosting if detect after processing with voltage stabilizing keeps fixing, output low level signal controlling is closed boosting and voltage stabilizing processing to described electrode voltage, thereby avoided when current constant, to the electrode voltage processing of boosting, when having saved electric weight, also prevent from the touch-screen of mobile terminal to damage.
Based on the above method, the invention also discloses a kind of touch positioning device of touch-screen, wherein, comprising: connected current detection module 10, calculation control module 20 and the Voltage stabilizing module 30 that boosts successively;
Described current detection module 10, sends after touch operation for detection of user, and whether the current value of four electrode outputs on four angles of touch-screen is steady state value; Its function is as shown in above-mentioned steps S1.
The described Voltage stabilizing module 20 that boosts, for when current value is not steady state value, boosts and after voltage stabilizing processes, again obtains the current value of four electrodes outputs the voltage of described electrode.Its function is as shown in above-mentioned steps S2.
Described calculation control module 30, for when described current value is steady state value, obtains described current value, according to the scale-up factor of described current value, touch point is positioned; Its function is as shown in above-mentioned steps S3.
The touch positioning device of described touch-screen, wherein, also comprise scale-up factor acquiring unit, while being steady state value for detection of the current value to four electrode outputs, according to the ratio between the current value of four electrodes output, extrapolate described touch point to the scale-up factor of distance between four electrodes on four angles of touch-screen, according to described distance proportion coefficient, orient touch point.
The touch positioning device of described touch-screen, wherein, described calculation control module also comprises controlling opens unit;
Unit is opened in described control, for when current value is not steady state value, exports high level signal control unlatching and described electrode voltage is boosted and voltage stabilizing processing.
The touch positioning device of described touch-screen, wherein, described calculation control module also comprises control closing unit;
Described control closing unit, current value for four electrode outputs after processing with voltage stabilizing boosting detects and controls, the current value boosting if detect after processing with voltage stabilizing keeps fixing, and output low level signal controlling is closed boosting and voltage stabilizing processing to described electrode voltage.
The touch localization method of a kind of touch-screen provided by the present invention and device, by the electric current of four electrode outputs of touch-screen is amplified to processing, thereby make to obtain the distance between touch point and electrode, thereby extrapolate touch point, the calculating control program that has overcome the touch-screen causing because there is steam on touch-screen cannot accurately be located touch point, thereby the problem that cannot implement touch operation, improves Experience Degree for user uses the mobile terminal with touch-screen.
Be understandable that, for those of ordinary skills, can be equal to replacement or change according to technical scheme of the present invention and inventive concept thereof, and all these changes or replacement all should belong to the protection domain of the appended claim of the present invention.
Claims (8)
1. a touch localization method for touch-screen, is characterized in that, comprising:
A, detection user send after touch operation, and whether the current value of four electrodes outputs on four angles of touch-screen is steady state value; If not steady state value is carried out B, if steady state value is carried out C;
B, the voltage of described electrode is boosted and after voltage stabilizing processes, again obtains the current value of four electrodes outputs, execution step C;
C, according to the scale-up factor of the described current value of four electrodes output, touch point is positioned.
2. the touch localization method of touch-screen according to claim 1, is characterized in that, described step C comprises:
When the current value that the output of four electrodes detected is steady state value, according to the scale-up factor between the current value of four electrodes outputs, extrapolate the scale-up factor of distance between the electrode of described touch point to four, according to described scale-up factor, orient touch point.
3. the touch localization method of touch-screen according to claim 1, is characterized in that, at described step B, also comprises:
When current value is not steady state value, exports high level signal control unlatching and described electrode voltage is boosted and voltage stabilizing processing.
4. the touch localization method of touch-screen according to claim 3, is characterized in that, described step B also comprises:
After described electrode voltage boosts and processes with voltage stabilizing, current value to four electrode outputs detects and controls, the current value boosting if detect after processing with voltage stabilizing keeps fixing, and output low level signal controlling is closed boosting and voltage stabilizing processing to described electrode voltage.
5. a touch positioning device for touch-screen, is characterized in that, comprising: connected current detection module, boost Voltage stabilizing module and calculation control module successively;
Described current detection module, sends after touch operation for detection of user, and whether the current value of four electrode outputs on four angles of touch-screen is steady state value;
The described Voltage stabilizing module that boosts, for when current value is not steady state value, boosts and after voltage stabilizing processes, again obtains the current value of four electrodes outputs the voltage of described electrode;
Described calculation control module, for when described current value is steady state value, the ratio according to the described current value of four electrode outputs, positions touch point.
6. the touch positioning device of touch-screen according to claim 5, it is characterized in that, described calculation control module also comprises scale-up factor acquiring unit, while being steady state value for detection of the current value to four electrode outputs, according to the scale-up factor between the current value of four electrode outputs, extrapolate the scale-up factor of distance between the electrode of described touch point to four, according to the scale-up factor of described distance, orient touch point.
7. the touch positioning device of touch-screen according to claim 6, is characterized in that, described calculation control module also comprises controlling opens unit;
Unit is opened in described control, for when current value is not steady state value, exports high level signal control unlatching and described electrode voltage is boosted and voltage stabilizing processing.
8. the touch positioning device of touch-screen according to claim 6, is characterized in that, described calculation control module also comprises control closing unit;
Described control closing unit, current value for four electrode outputs after processing with voltage stabilizing boosting detects and controls, the current value boosting if detect after processing with voltage stabilizing keeps fixing, and output low level signal controlling is closed boosting and voltage stabilizing processing to described electrode voltage.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410393624.4A CN104166478A (en) | 2014-08-12 | 2014-08-12 | Touch positioning method and device of touch screen |
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| CN201410393624.4A CN104166478A (en) | 2014-08-12 | 2014-08-12 | Touch positioning method and device of touch screen |
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| CN201410393624.4A Pending CN104166478A (en) | 2014-08-12 | 2014-08-12 | Touch positioning method and device of touch screen |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107728837A (en) * | 2017-09-27 | 2018-02-23 | 惠州Tcl移动通信有限公司 | A kind of method, storage medium and the intelligent terminal of touch-screen positioning output |
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| CN101533326A (en) * | 2008-10-15 | 2009-09-16 | 闻泰集团有限公司 | Method for calibrating coordinates of resistance touch screen |
| CN203232405U (en) * | 2013-04-25 | 2013-10-09 | 潘兴修 | Capacitive touch screen applied to large-size human-machine interaction equipment |
| CN103970356A (en) * | 2014-05-05 | 2014-08-06 | 华南师范大学 | Handwriting drawing board and displaying method of handwriting drawing board |
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2014
- 2014-08-12 CN CN201410393624.4A patent/CN104166478A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101533326A (en) * | 2008-10-15 | 2009-09-16 | 闻泰集团有限公司 | Method for calibrating coordinates of resistance touch screen |
| CN203232405U (en) * | 2013-04-25 | 2013-10-09 | 潘兴修 | Capacitive touch screen applied to large-size human-machine interaction equipment |
| CN103970356A (en) * | 2014-05-05 | 2014-08-06 | 华南师范大学 | Handwriting drawing board and displaying method of handwriting drawing board |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107728837A (en) * | 2017-09-27 | 2018-02-23 | 惠州Tcl移动通信有限公司 | A kind of method, storage medium and the intelligent terminal of touch-screen positioning output |
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Application publication date: 20141126 |