发明名称 |
Touch sensor, display and electronic unit |
摘要 |
A display includes: display pixel electrodes; common electrodes; a display layer; a display control circuit performing image display control based on an image signal; touch detection electrodes each arranged to form a capacitance between each of the touch detection electrodes and each of the common electrodes; and a touch detection circuit detecting an external proximity object based on a detection signal obtained from the touch detection electrodes with use of a common drive voltage for display applied to the common electrodes by the display control circuit as a touch sensor drive signal. The touch detection circuit includes: an A/D (analog-digital) converter section performing sampling of a detection signal obtained from each of the touch detection electrodes at three or more different sampling frequencies to produce three or more sampling detection signals, and a detection section performing a detection operation based on the three or more sampling detection signals. |
申请公布号 |
US8633905(B2) |
申请公布日期 |
2014.01.21 |
申请号 |
US20100790146 |
申请日期 |
2010.05.28 |
申请人 |
HARADA TSUTOMU;NOGUCHI KOUJI;KIDA YOSHITOSHI;ISHIZAKI KOJI;NAKANISHI TAKAYUKI;TAKEUCHI TAKEYA;JAPAN DISPLAY WEST, INC. |
发明人 |
HARADA TSUTOMU;NOGUCHI KOUJI;KIDA YOSHITOSHI;ISHIZAKI KOJI;NAKANISHI TAKAYUKI;TAKEUCHI TAKEYA |
分类号 |
G06F3/041 |
主分类号 |
G06F3/041 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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