发明授权
- 专利标题: Liquid crystal display device and electronics device
- 专利标题(中): 液晶显示装置及电子装置
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申请号: US13130244申请日: 2009-07-30
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公开(公告)号: US08098345B2公开(公告)日: 2012-01-17
- 发明人: Atsuhito Murai , Hajime Imai , Hideki Kitagawa
- 申请人: Atsuhito Murai , Hajime Imai , Hideki Kitagawa
- 申请人地址: JP Osaka
- 专利权人: Sharp Kabushiki Kaisha
- 当前专利权人: Sharp Kabushiki Kaisha
- 当前专利权人地址: JP Osaka
- 代理机构: Birch, Stewart, Kolasch & Birch, LLP
- 优先权: JP2008-298686 20081121
- 国际申请: PCT/JP2009/063607 WO 20090730
- 国际公布: WO2010/058630 WO 20100527
- 主分类号: G02F1/136
- IPC分类号: G02F1/136
摘要:
A liquid crystal display device of the present invention includes a two-dimensional sensor array in which optical sensor circuits are two-dimensionally positioned. The respective optical sensor circuits are provided with a photodiode (17), an output AMP and a NetA voltage raising capacitor. The output AMP has a gate electrode, a source electrode and a drain electrode. The gate electrode, the source electrode and the drain electrode are connected to a cathode electrode (NetA) of the photodiode (17), a voltage supply wiring (Vsm) and an optical sensor output wiring (Vom), respectively. The NetA voltage raising capacitor has two electrodes. One of the two electrodes is electrically connected to the NetA, and the other of the two electrodes is electrically connected to a drive wiring (Vrwn) for supplying a drive signal to the NetA voltage raising capacitor. A storage capacitor wiring (Csn) for retaining a pixel potential also serves as the drive wiring (Vrwn). It is accordingly possible to attain a liquid crystal display device including the optical sensor circuits in which deterioration in aperture ratio of a pixel and increase in frame region surrounding a display section are suppressed.
公开/授权文献
- US20110221738A1 LIQUID CRYSTAL DISPLAY DEVICE AND ELECTRONICS DEVICE 公开/授权日:2011-09-15