CN102411448A - Automatic calibration method for touch screens - Google Patents
Automatic calibration method for touch screens Download PDFInfo
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- CN102411448A CN102411448A CN2011103293496A CN201110329349A CN102411448A CN 102411448 A CN102411448 A CN 102411448A CN 2011103293496 A CN2011103293496 A CN 2011103293496A CN 201110329349 A CN201110329349 A CN 201110329349A CN 102411448 A CN102411448 A CN 102411448A
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Abstract
The invention discloses an automatic calibration method for touch screens. The method relates to a host, a touch screen and a touch screen control module, wherein the touch screen control module is connected with the host and the touch screen, and the touch screen comprises a plurality of inductive electrodes for inducting the change of capacitance; and the method comprises the following steps that: firstly, the host reads original data information obtained through scanning the inductive electrodes by the touch screen control module; secondly, the host obtains a drift value according to the original data information; then, the host analyzes the drift value, and judges whether the touch screen drifts; if determining that the touch screen drifts, the host sends a compensation command to the touch screen control module so as to compensate the generated drift. By using the automatic calibration method for touch screens disclosed by the invention, the host is adopted for analyzing the original data information, judging whether the touch screen drifts, and timely discovering and compensating the drift of the touch screen without a manual judgment operation, therefore, the method is simple and convenient.
Description
Technical field
the present invention relates to a kind of calibration steps of touch-screen, especially a kind of automatic calibrating method of touch-screen.
Background technology
along with science and technology development, touch-screen has replaced the mechanical type push button panel gradually becomes the new operation interfaces of electronic equipment such as mobile phone, notebook.Touch-screen comprises resistive touch screen, infrared touch panel, capacitive touch screen, and they obtain coordinate through different modes, and capacitive touch screen is because its transmittance, sharpness and better reliability, and is applied in the increasing product.
though capacitive touch screen has plurality of advantages, also have shortcoming, and its topmost shortcoming is exactly the drift that causes touch-screen easily because of the change of temperature, humidity in the environment, causes the inaccurate of touch-screen.Existing calibration for touch-screen finds in use that normally the location of touch-screen is inaccurate, and the manual operation calibration is made troubles to the user.
Summary of the invention
technical matters to be solved by this invention provides a kind of method that can calibrate touch-screen automatically.
to achieve these goals, the present invention provides a kind of automatic calibrating method of touch-screen, and its step is following: at first, main frame reads the primary data information (pdi) that touch screen control module scanning induction electrode obtains; Secondly, said main frame obtains drift value according to said primary data information (pdi); Then, the said drift value of said host analysis judges whether touch-screen drifts about; If assert said touch-screen drift, said main frame sends the compensation order to said touch screen control module, the drift that compensation produces.
compared with prior art, touch-screen automatic calibrating method of the present invention utilizes the host analysis primary data information (pdi); Judge the touch-screen drift; And in time find and carry out the compensation of touch-screen drift, and do not need the artificial judgment operation, simple and convenient.
Description of drawings
Fig. 1 is a touch-screen automatic calibrating method process flow diagram of the present invention.
Embodiment
are further described the present invention below in conjunction with accompanying drawing and embodiment.
see also Fig. 1; The present invention relates to a kind of automatic calibrating method of touch-screen, said touch-screen automatic calibrating method relates to main frame, touch-screen and touch screen control module, and said touch screen control module connects said main frame and said touch-screen; Said touch screen comprises a plurality of induction electrodes; Said induction electrode can change by inductance capacitance, and said touch screen control module scans said induction electrode, obtains the primary data information (pdi) of said induction electrode and stores said primary data information (pdi); Said main frame can read said touch screen control module storage primary data information (pdi), and preestablishes drift threshold.
said touch screen control module scans constantly that said induction electrode obtains and the storage primary data information (pdi), and the every interval T of said main frame reads the primary data information (pdi) of said touch screen control module storage second, the more adjacent primary data information (pdi) that reads for twice; Obtain drift value △ C, repeat above-mentioned steps, obtain the more continuous a plurality of drift value △ C of a plurality of drift value △ C; If continuous drift value △ C is identical; And said drift value △ C assert then that greater than said drift threshold said touch-screen drifts about, and said main frame sends compensation and orders to touch screen control module; The drift that compensation produces is calibrated touch-screen automatically.
more specifically, after the main frame start, touch screen control module scans said induction electrode and obtains primary data information (pdi), said main frame reads said primary data information (pdi) for the first time, and the said primary data information (pdi) that reads for the first time of record; First T is after second; Said main frame reads said primary data information (pdi) for the second time; And the said primary data information (pdi) that reads for the second time of record; Read the said second time and read the primary data information (pdi) and the said first time primary data information (pdi) and relatively obtain the first drift value △ C (1), promptly said drift value is the difference of the raw data of adjacent twice acquisition; Second T is after second; Said main frame reads said primary data information (pdi) for the third time; And the said primary data information (pdi) that reads for the third time of record, said read primary data information (pdi) for the third time and read primary data information (pdi) the said second time relatively obtain the second drift value △ C (2); The rest may be inferred; N T is after second; Said main frame reads said primary data information (pdi) for the N+1 time, and writes down the said primary data information (pdi) that reads for the N+1 time, saidly reads primary data information (pdi) for the N+1 time and saidly reads primary data information (pdi) the N time and relatively obtain N drift value △ C (N).Analyze a resulting N drift value; If a said N drift value is identical, promptly said N drift value is all in admissible error range, and a said N drift value is greater than drift threshold; Said main frame assert that said touch-screen drifts about; Said main frame sends compensation and orders to touch screen control module, and the drift that compensation produces is calibrated touch-screen automatically.
the present invention monitors the primary data information (pdi) of said touch screen control module constantly through said main frame, finds the touch-screen drift immediately and revises, and need not the artificial judgment operation, and is simple and convenient.
Claims (10)
1. the automatic calibrating method of a touch-screen relates to main frame, touch-screen and touch screen control module, and said touch screen control module connects said main frame and said touch-screen, and said touch screen comprises the induction electrode that a plurality of inductance capacitances change, and its step is following:
At first, main frame reads the primary data information (pdi) that touch screen control module scanning induction electrode obtains;
Secondly, said main frame obtains drift value according to said primary data information (pdi);
Then, the said drift value of said host analysis judges whether touch-screen drifts about; If assert said touch-screen drift, said main frame sends the compensation order to said touch screen control module, the drift that compensation produces.
2. the automatic calibrating method of touch-screen as claimed in claim 1, it is characterized in that: the drift value that said main frame obtains according to said primary data information (pdi) is a plurality of.
3. the automatic calibrating method of touch-screen as claimed in claim 2, it is characterized in that: said main frame judges that the method whether touch-screen drifts about is to judge whether said a plurality of drift value is identical.
4. the automatic calibrating method of touch-screen as claimed in claim 2 is characterized in that: the method for the said touch-screen drift of said identification is to assert that said a plurality of drift values are identical.
5. the automatic calibrating method of touch-screen as claimed in claim 4, it is characterized in that: said a plurality of drift values are identical, are meant that said a plurality of drift value is all in the false drop scope.
6. the automatic calibrating method of touch-screen as claimed in claim 4, it is characterized in that: said drift value is greater than drift threshold.
7. the automatic calibrating method of touch-screen as claimed in claim 5, it is characterized in that: said drift threshold is predefined numerical value.
8. the automatic calibrating method of touch-screen as claimed in claim 1 is characterized in that: said main frame obtains drift value according to the difference of the raw data of adjacent twice acquisition.
9. the automatic calibrating method of touch-screen as claimed in claim 1, it is characterized in that: said main frame reads the time interval T second of raw data.
10. the automatic calibrating method of touch-screen as claimed in claim 1 is characterized in that: said touch screen control module scans constantly that said induction electrode obtains and the storage primary data information (pdi).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103293496A CN102411448A (en) | 2011-10-26 | 2011-10-26 | Automatic calibration method for touch screens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103293496A CN102411448A (en) | 2011-10-26 | 2011-10-26 | Automatic calibration method for touch screens |
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| CN102411448A true CN102411448A (en) | 2012-04-11 |
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| CN2011103293496A Pending CN102411448A (en) | 2011-10-26 | 2011-10-26 | Automatic calibration method for touch screens |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102880366A (en) * | 2012-08-29 | 2013-01-16 | 北京集创北方科技有限公司 | Capacitive touch screen temperature drift characteristic detection method and detection system |
| CN103677452A (en) * | 2012-08-30 | 2014-03-26 | 华为终端有限公司 | Capacitive touch screen calibration method and capacitive touch device |
| CN106209266A (en) * | 2016-06-29 | 2016-12-07 | 联想(北京)有限公司 | A kind of control method and electronic equipment |
| CN106557208A (en) * | 2016-11-30 | 2017-04-05 | 无锡华润矽科微电子有限公司 | Realize the method that touch-screen is calibrated automatically |
| CN113805731A (en) * | 2021-09-23 | 2021-12-17 | 珠海格力电器股份有限公司 | Touch screen calibration method and device, storage medium and touch screen |
| CN113934322A (en) * | 2021-10-13 | 2022-01-14 | 珠海格力电器股份有限公司 | Touch drift calibration method and device for touch screen, storage medium and touch screen |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6677932B1 (en) * | 2001-01-28 | 2004-01-13 | Finger Works, Inc. | System and method for recognizing touch typing under limited tactile feedback conditions |
| JP2007094899A (en) * | 2005-09-29 | 2007-04-12 | Sharp Corp | Operation device |
| CN101799734A (en) * | 2010-03-29 | 2010-08-11 | 深圳龙多电子科技有限公司 | Key detection method of capacitive touch screen |
| US20100214253A1 (en) * | 2009-02-25 | 2010-08-26 | Ite Tech. Inc. | Drift compensation apparatus of capacitive touch panel and drift compensation method thereof |
-
2011
- 2011-10-26 CN CN2011103293496A patent/CN102411448A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6677932B1 (en) * | 2001-01-28 | 2004-01-13 | Finger Works, Inc. | System and method for recognizing touch typing under limited tactile feedback conditions |
| JP2007094899A (en) * | 2005-09-29 | 2007-04-12 | Sharp Corp | Operation device |
| US20100214253A1 (en) * | 2009-02-25 | 2010-08-26 | Ite Tech. Inc. | Drift compensation apparatus of capacitive touch panel and drift compensation method thereof |
| CN101799734A (en) * | 2010-03-29 | 2010-08-11 | 深圳龙多电子科技有限公司 | Key detection method of capacitive touch screen |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102880366A (en) * | 2012-08-29 | 2013-01-16 | 北京集创北方科技有限公司 | Capacitive touch screen temperature drift characteristic detection method and detection system |
| CN102880366B (en) * | 2012-08-29 | 2015-08-05 | 北京集创北方科技有限公司 | A kind of capacitive touch screen temperature drift characteristic detection method and detection system |
| CN103677452A (en) * | 2012-08-30 | 2014-03-26 | 华为终端有限公司 | Capacitive touch screen calibration method and capacitive touch device |
| US9529475B2 (en) | 2012-08-30 | 2016-12-27 | Huawei Device Co., Ltd. | Method for calibration of capacitive touch screen and capacitive touch apparatus |
| CN103677452B (en) * | 2012-08-30 | 2017-05-24 | 华为终端有限公司 | Capacitive touch screen calibration method and capacitive touch device |
| CN106209266A (en) * | 2016-06-29 | 2016-12-07 | 联想(北京)有限公司 | A kind of control method and electronic equipment |
| CN106209266B (en) * | 2016-06-29 | 2019-02-05 | 联想(北京)有限公司 | A kind of control method and electronic equipment |
| CN106557208A (en) * | 2016-11-30 | 2017-04-05 | 无锡华润矽科微电子有限公司 | Realize the method that touch-screen is calibrated automatically |
| CN113805731A (en) * | 2021-09-23 | 2021-12-17 | 珠海格力电器股份有限公司 | Touch screen calibration method and device, storage medium and touch screen |
| CN113934322A (en) * | 2021-10-13 | 2022-01-14 | 珠海格力电器股份有限公司 | Touch drift calibration method and device for touch screen, storage medium and touch screen |
| CN113934322B (en) * | 2021-10-13 | 2024-04-05 | 珠海格力电器股份有限公司 | Touch drift calibration method and device of touch screen, storage medium and touch screen |
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Application publication date: 20120411 |