发明授权
- 专利标题: Electro-optical device, method of driving electro-optical device, pixel circuit, and electronic apparatus
- 专利标题(中): 电光装置,驱动电光装置的方法,像素电路和电子装置
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申请号: US11243427申请日: 2005-10-05
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公开(公告)号: US07592983B2公开(公告)日: 2009-09-22
- 发明人: Tokuro Ozawa , Ryoichi Nozawa
- 申请人: Tokuro Ozawa , Ryoichi Nozawa
- 申请人地址: JP Tokyo
- 专利权人: Seiko Epson Corporation
- 当前专利权人: Seiko Epson Corporation
- 当前专利权人地址: JP Tokyo
- 代理机构: Oliff & Berridge, PLC
- 优先权: JP2004-310433 20041026; JP2005-191122 20050630
- 主分类号: G09G3/30
- IPC分类号: G09G3/30 ; G09G5/00 ; G09G3/10
摘要:
An electro-optical device includes a plurality of pixel circuits that are disposed to correspond to intersections of a plurality of scanning lines and a plurality of data lines, a scanning line driving circuit that sequentially selects the plurality of scanning lines to apply a selection voltage to the selected scanning line, a data line driving circuit that applies any one of an on voltage and an off voltage to the plurality of data lines in accordance with gray-scale levels of pixel circuits corresponding to intersections of the data lines and the selected scanning line by the scanning line driving circuit, and a signal supply circuit that supplies a driving signal, of which the level periodically changes, to a signal supply line. Each of the pixel circuits has a first transistor in which, when the on voltage is applied to a gate electrode, a first terminal is connected to a second terminal, an electro-optical element that is connected to the first terminal of the first transistor, a first capacitor one end of which is connected to the second terminal of the first transistor and simultaneously the other end of which is connected to the signal supply line, a second capacitor one end of which is connected to the gate electrode of the first transistor, and a second transistor in which, when the selection voltage is applied to a gate electrode connected to a corresponding scanning line, a first terminal connected to a corresponding data line is connected to a second terminal connected to one end of the second capacitor.
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