发明申请
- 专利标题： Display Device
- 专利标题（中）： 显示设备
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申请号： US11664224申请日： 2005-10-13
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公开(公告)号： US20080278459A1公开(公告)日： 2008-11-13
- 发明人: Keitaro Yamashita
- 申请人： Keitaro Yamashita
- 申请人地址： NL Eindhoven
- 专利权人： KONINKLIJKE PHILIPA ELECTRONICS N.V.
- 当前专利权人： KONINKLIJKE PHILIPA ELECTRONICS N.V.
- 当前专利权人地址： NL Eindhoven
- 优先权： JP2004-307559 20041022
- 国际申请： PCT/IB05/53363 WO 20051013
- 主分类号： G06F3/042
- IPC分类号： G06F3/042
摘要：
A display device which can authenticate fingerprint without a fingerprint sensor device and can be prevented from large size or reduced the size. A display device (1) is provided with a pixel or sub pixel comprising a photo diode (11) for detecting a light from a object, a holding capacitor (13) for holding a voltage (Vn1) corresponding to an intensity of the light detected by the photo diode (11), and a refreshing means (18) for writing a voltage (Vdd or Vss) into the holding capacitor (13) (node N1) on the basis of the voltage Vn1 held in the holding capacitor (13).