发明授权
US08823607B2 Pixel circuit, active matrix apparatus and display apparatus with first and second reference potentials applied to source and gate of drive transistor
有权
像素电路，有源矩阵装置和具有施加到驱动晶体管的源极和栅极的第一和第二参考电位的显示装置
- 专利标题： Pixel circuit, active matrix apparatus and display apparatus with first and second reference potentials applied to source and gate of drive transistor
- 专利标题（中）： 像素电路，有源矩阵装置和具有施加到驱动晶体管的源极和栅极的第一和第二参考电位的显示装置
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申请号： US11702165申请日： 2007-02-05
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公开(公告)号： US08823607B2公开(公告)日： 2014-09-02
- 发明人: Katsuhide Uchino , Junichi Yamashita , Tetsuro Yamamoto
- 申请人： Katsuhide Uchino , Junichi Yamashita , Tetsuro Yamamoto
- 申请人地址： JP Tokyo
- 专利权人： Sony Corporation
- 当前专利权人： Sony Corporation
- 当前专利权人地址： JP Tokyo
- 代理机构： Rader, Fishman & Grauer PLLC
- 优先权： JP2004-164681 20040602; JP2004-164682 20040602
- 主分类号： G09G3/30
- IPC分类号： G09G3/30 ; G09G3/20 ; G09G3/32
摘要：
A pixel circuit having a function of compensating for characteristic variation of an electro-optical element and threshold voltage variation of a transistor is formed from a reduced number of component elements. The pixel circuit includes an electro-optical element, a holding capacitor, a sampling transistor, and a drive transistor. The sampling transistor samples and supplies an input signal from a signal line so as to be held into the holding capacitor. The driving transistor drives the electro-optical element with current in response to the held signal potential. The threshold voltage of the drive transistor is imparted to the holding capacitor in order to cancel an influence of the threshold voltage.
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