TW201612700A - Touch panel and touch detection method of the same - Google Patents
Touch panel and touch detection method of the sameInfo
- Publication number
- TW201612700A TW201612700A TW104100312A TW104100312A TW201612700A TW 201612700 A TW201612700 A TW 201612700A TW 104100312 A TW104100312 A TW 104100312A TW 104100312 A TW104100312 A TW 104100312A TW 201612700 A TW201612700 A TW 201612700A
- Authority
- TW
- Taiwan
- Prior art keywords
- touch
- values
- voltage values
- differential
- detection method
- Prior art date
Links
- 238000001514 detection method Methods 0.000 title abstract 2
Landscapes
- Position Input By Displaying (AREA)
Abstract
A touch detection method used in a touch panel that includes the steps outlined below is provided. Initial detected voltage values are retrieved by a touch unit group in the touch panel during an initial state such that a differential calculation is performed to obtain initial differential voltage values stored as baseline values. Detected voltage values are retrieved by the touch unit group during an operation state such that a differential calculation is performed to obtain differential voltage values. Difference values are generated by subtracting the differential voltage values and the baseline values such that whether the touch unit group includes at least one touch applying point and a touch removing point is determined according to an order of the difference values. When a touch removing point is included, the baseline values are updated to be the differential voltage values.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410502052.9A CN105511655B (en) | 2014-09-26 | 2014-09-26 | Touch panel and its method for detecting |
Publications (2)
Publication Number | Publication Date |
---|---|
TW201612700A true TW201612700A (en) | 2016-04-01 |
TWI543033B TWI543033B (en) | 2016-07-21 |
Family
ID=54153440
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW104100312A TWI543033B (en) | 2014-09-26 | 2015-01-06 | Touch panel and touch detection method of the same |
TW104200137U TWM505646U (en) | 2014-09-26 | 2015-01-06 | Touch panel |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW104200137U TWM505646U (en) | 2014-09-26 | 2015-01-06 | Touch panel |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN105511655B (en) |
TW (2) | TWI543033B (en) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110068810A1 (en) * | 2009-04-03 | 2011-03-24 | Tpo Displays Corp. | Sensing method and driving circuit of capacitive touch screen |
TWI421755B (en) * | 2009-09-25 | 2014-01-01 | Ite Tech Inc | Touch panel and touching point detection method thereof |
CN102043549B (en) * | 2009-10-15 | 2013-01-02 | 联阳半导体股份有限公司 | Touch panel and touch point sensing method |
CN102109937B (en) * | 2009-12-24 | 2013-06-26 | 联阳半导体股份有限公司 | Locating device and locating method for touch device |
CN102193693B (en) * | 2010-03-17 | 2014-03-19 | 群康科技(深圳)有限公司 | Touch panel and differential identification method thereof |
CN102968217B (en) * | 2012-12-07 | 2016-01-20 | 深圳市汇顶科技股份有限公司 | The datum renewal method of touch-screen, system and touch control terminal |
-
2014
- 2014-09-26 CN CN201410502052.9A patent/CN105511655B/en active Active
-
2015
- 2015-01-06 TW TW104100312A patent/TWI543033B/en not_active IP Right Cessation
- 2015-01-06 TW TW104200137U patent/TWM505646U/en unknown
Also Published As
Publication number | Publication date |
---|---|
TWM505646U (en) | 2015-07-21 |
CN105511655B (en) | 2018-08-07 |
CN105511655A (en) | 2016-04-20 |
TWI543033B (en) | 2016-07-21 |
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Legal Events
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MM4A | Annulment or lapse of patent due to non-payment of fees |