发明授权
US09035900B2 Touch detector and method of driving the same, display with touch detection function, and electronic unit having plural different drive electrodes
有权
触摸检测器及其驱动方法，具有触摸检测功能的显示器以及具有多个不同驱动电极的电子单元
- 专利标题： Touch detector and method of driving the same, display with touch detection function, and electronic unit having plural different drive electrodes
- 专利标题（中）： 触摸检测器及其驱动方法，具有触摸检测功能的显示器以及具有多个不同驱动电极的电子单元
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申请号： US13137340申请日： 2011-08-08
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公开(公告)号： US09035900B2公开(公告)日： 2015-05-19
- 发明人: Kohei Azumi , Yoshitoshi Kida , Koji Noguchi , Koji Ishizaki
- 申请人： Kohei Azumi , Yoshitoshi Kida , Koji Noguchi , Koji Ishizaki
- 申请人地址： JP Tokyo
- 专利权人： Japan Display Inc.
- 当前专利权人： Japan Display Inc.
- 当前专利权人地址： JP Tokyo
- 代理机构： Fishman Stewart Yamaguchi PLLC
- 优先权： JP2010-214188 20100924
- 主分类号： G06F3/045
- IPC分类号： G06F3/045 ; G06F3/044
摘要：
A touch detector capable of achieving high position resolution while improving detection sensitivity to a touch is provided. The touch detector includes: a plurality of drive electrodes arranged side by side to extend in one direction; a detection electrode extending in a direction orthogonal to a direction where the drive electrodes extend, and arranged to form a capacitance at each of intersections with the drive electrodes; and a scanning drive section sequentially selecting a predetermined plural number of target electrodes from the plurality of drive electrodes in a time-divisional manner, and applying a touch detection drive signal with a plurality of pulse waveforms for detecting an external adjacent object to the selected target electrodes to perform a scanning drive. A scanning pitch in the scanning drive is smaller than the total width of the plural number of selected target electrodes.
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