发明授权
- 专利标题: Capacitive fingerprint sensor and the panel thereof
- 专利标题(中): 电容式指纹传感器及其面板
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申请号: US12034258申请日: 2008-02-20
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公开(公告)号: US07683639B2公开(公告)日: 2010-03-23
- 发明人: Kai Lan Chuang , Ying Lieh Chen
- 申请人: Kai Lan Chuang , Ying Lieh Chen
- 申请人地址: TW Tainan County
- 专利权人: Himax Technologies Limited
- 当前专利权人: Himax Technologies Limited
- 当前专利权人地址: TW Tainan County
- 代理机构: WPAT, P.C.
- 代理商 Anthony King; Kay Yang
- 主分类号: G01R27/28
- IPC分类号: G01R27/28 ; G06F3/041
摘要:
A capacitive fingerprint sensor comprises a fingerprint capacitor, a reference capacitor, a first transistor and a second transistor. The fingerprint capacitor CF has a capacitance that is either a valley capacitance CFV or a ridge capacitance CFR. The reference capacitor CS has a capacitance CS, and CFV
公开/授权文献
- US20090206848A1 CAPACITIVE FINGERPRINT SENSOR AND THE PANEL THEREOF 公开/授权日:2009-08-20
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