发明名称 |
DEVICE AND METHOD FOR DETECTING TOUCH SCREEN |
摘要 |
The invention discloses a full screen driven detection. A driving signal is simultaneously provided to all first conductive strips arranged in parallel in a first direction in a touch screen, and mutual capacitive signals are detected from all second conductive strips arranged in parallel in a second direction. The mutual capacitive signals can be used for determining whether an external conductive object coupled to the ground is touching or approaching the touch screen or not even if water or other conductive object not coupled to ground is on the touch screen. Thus, the baseline of the mutual capacitive signals can be updated if the touch screen is not touched or approached by any external conductive object coupled to ground over a predetermined period of time.
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申请公布号 |
US2013038573(A1) |
申请公布日期 |
2013.02.14 |
申请号 |
US201213650649 |
申请日期 |
2012.10.12 |
申请人 |
EGALAX_EMPIA TECHNOLOGY INC.;EGALAX_EMPIA TECHNOLOGY INC. |
发明人 |
CHANG CHIN-FU;TANG CHI-HAO |
分类号 |
G06F3/044 |
主分类号 |
G06F3/044 |
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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