发明授权
- 专利标题: Organic EL display device
- 专利标题(中): 有机EL显示装置
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申请号: US10994241申请日: 2004-11-23
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公开(公告)号: US07027014B2公开(公告)日: 2006-04-11
- 发明人: Yasushi Sato , Takuya Higuchi
- 申请人: Yasushi Sato , Takuya Higuchi
- 申请人地址: JP Tokyo
- 专利权人: Dai Nippon Printing Co., Ltd.
- 当前专利权人: Dai Nippon Printing Co., Ltd.
- 当前专利权人地址: JP Tokyo
- 代理机构: Finnegan, Henderson, Farabow, Garrett & Dunner, L.L.P.
- 优先权: JPP2003-397806 20031127
- 主分类号: G09G3/32
- IPC分类号: G09G3/32
摘要:
Disclosed is an organic EL display device which includes a light emitter; a current controller controlling a current to be fed to the light emitter; a current detector detecting a value of current flowing through the light emitter as a voltage; a first switching unit switching between transmission and non-transmission of a voltage value corresponding to the detected current; a comparison amplifier comparing and amplifying the voltage value transmitted from the first switching unit to a voltage value corresponding to the image signal; a second switching unit switching between transmission and non-transmission of the voltage value being a result of the comparison and amplification; and an image signal holding capacitor charged/discharged based on the voltage value transmitted from the second switching unit, the current controller controlling the current to be fed to the light emitter based on a charging voltage of the image signal holding capacitor.
公开/授权文献
- US20050140607A1 Organic EL display device 公开/授权日:2005-06-30
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