发明授权
- 专利标题: Light emitting device and driving method thereof
- 专利标题(中): 发光装置及其驱动方法
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申请号: US11190777申请日: 2005-07-27
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公开(公告)号: US07834827B2公开(公告)日: 2010-11-16
- 发明人: Hiroyuki Miyake , Ryota Fukumoto , Tomoyuki Iwabuchi
- 申请人: Hiroyuki Miyake , Ryota Fukumoto , Tomoyuki Iwabuchi
- 申请人地址: JP
- 专利权人: Semiconductor Energy Laboratory Co., Ltd.
- 当前专利权人: Semiconductor Energy Laboratory Co., Ltd.
- 当前专利权人地址: JP
- 代理机构: Husch Blackwell LLP Welsh Katz
- 优先权: JP2004-223024 20040730
- 主分类号: G09G3/32
- IPC分类号: G09G3/32
摘要:
According to a driving method of applying a reverse bias voltage, capacitance occurs due to a stacked structure of a conductor, an insulator and a conductor, or due to a structure of a TFT. This capacitance prevents normal operation. The invention provides a pixel configuration including at least a driving transistor for driving a light emitting element and a switching transistor for controlling the driving transistor, wherein the switching transistor is turned on in the case of applying a forward bias voltage after applying a reverse bias voltage. As a result, it is prevented that the potential changes due to unwanted capacitive coupling.
公开/授权文献
- US20060022900A1 Light emitting device and driving method thereof 公开/授权日:2006-02-02