发明申请
- 专利标题: ORGANIC EL DISPLAY APPARATUS AND DRIVING METHOD OF THE SAME
- 专利标题(中): 有机EL显示装置及其驱动方法
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申请号: US13302047申请日: 2011-11-22
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公开(公告)号: US20120139978A1公开(公告)日: 2012-06-07
- 发明人: Kouji Ikeda
- 申请人: Kouji Ikeda
- 申请人地址: JP Tokyo
- 专利权人: CANON KABUSHIKI KAISHA
- 当前专利权人: CANON KABUSHIKI KAISHA
- 当前专利权人地址: JP Tokyo
- 优先权: JP2010-269260 20101202
- 主分类号: G09G3/30
- IPC分类号: G09G3/30 ; G09G5/02
摘要:
An organic EL display apparatus comprises a plurality of pixels, each having first and second sub pixels; an organic EL element provided for each sub pixel; a data line driver; a pixel circuit; and a gate line driver. Each pixel includes a first organic EL element arranged in a first sub pixel emitting light of the same color; and a second organic EL element arranged in a second sub pixel. The light-extraction efficiency of the second sub pixel is higher than that of the first sub pixel. At least one of a plurality of transistors applies a drive current. The reference voltage line driver supplies a reference voltage to a gate terminal of the drive transistor to perform gradation displaying on the first organic EL element at a light emitting level, and to perform gradation displaying on the second organic EL element by controlling the light emitting period.
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