Invention Grant
- Patent Title: Touch panel and coordinate detection method in touch panel
- Patent Title (中): 触摸面板和触摸面板中的坐标检测方法
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Application No.: US12926846Application Date: 2010-12-13
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Publication No.: US08803840B2Publication Date: 2014-08-12
- Inventor: Satoshi Sakurai , Kazuyuki Yoshifusa , Daisuke Ichikawa , Masanobu Hayama
- Applicant: Satoshi Sakurai , Kazuyuki Yoshifusa , Daisuke Ichikawa , Masanobu Hayama
- Applicant Address: JP Tokyo
- Assignee: Fujitsu Component Limited
- Current Assignee: Fujitsu Component Limited
- Current Assignee Address: JP Tokyo
- Agency: Staas & Halsey LLP
- Priority: JP2009-287101 20091218
- Main IPC: G06F3/045
- IPC: G06F3/045

Abstract:
A touch panel includes: a first conductive film divided into regions insulated from each other; a second conductive film facing and located away from the first conductive film; a pair of electrodes provided to the second conductive film, the electrodes facing each other; another pair of electrodes provided to the second conductive film, the electrodes facing each other; and a control unit configured to determine whether the first conductive film contacts with the second conductive film in each region, detect one of an X-coordinate and a Y-coordinate of a point where the first conductive film contacts with the second conductive film by applying a voltage to the pair of electrodes in a case where the first conductive film contacts with the second conductive film, discharge the voltage applied to the pair of electrodes after detecting one of the X-coordinate and the Y-coordinate in each region, and detects the other of the X-coordinate and the Y-coordinate in each region by applying a voltage to the another pair of electrodes after discharging the voltage applied to the pair of electrodes.
Public/Granted literature
- US20110148808A1 Touch panel and coordinate detection method in touch panel Public/Granted day:2011-06-23
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