发明申请
- 专利标题: DRIVE CIRCUIT AND DRIVE METHOD OF LIGHT EMITTING DISPLAY APPARATUS
- 专利标题(中): 发光显示装置的驱动电路和驱动方法
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申请号: US12028588申请日: 2008-02-08
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公开(公告)号: US20080225023A1公开(公告)日: 2008-09-18
- 发明人: Hisae Shimizu , Katsumi Abe
- 申请人: Hisae Shimizu , Katsumi Abe
- 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: JP2007-061871 20070312
- 主分类号: G06F3/038
- IPC分类号: G06F3/038
摘要:
A drive circuit for a light emitting display apparatus including a pixel circuit having a light emitting device for emitting a light having brightness determined based on supplied current and a drive transistor for supplying the current to the light emitting device, comprises a threshold value correction circuit converting a second signal including a threshold voltage of the drive transistor and a data voltage, the second signal being output from the drive transistor when a first signal including the data voltage is input into the control electrode of the drive transistor, into a third signal including the threshold voltage of an inverted polarity and the data voltage or a voltage corresponding to the data voltage, to output the converted third signal to the pixel circuit. The pixel circuit includes a switch for supplying the third signal to the control electrode of the drive transistor.
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