发明授权
- 专利标题: Light emitting device and drive method thereof
- 专利标题(中): 发光装置及其驱动方法
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申请号: US10376366申请日: 2003-02-27
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公开(公告)号: US07023141B2公开(公告)日: 2006-04-04
- 发明人: Aya Anzai , Mitsuaki Osame , Yoshifumi Tanada , Keisuke Miyagawa , Satoshi Seo , Shunpei Yamazaki
- 申请人: Aya Anzai , Mitsuaki Osame , Yoshifumi Tanada , Keisuke Miyagawa , Satoshi Seo , Shunpei Yamazaki
- 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: Cook, Alex, McFarron, Manzo, Cummings & Mehler, Ltd.
- 优先权: JP2002-055840 20020301
- 主分类号: G09G3/10
- IPC分类号: G09G3/10
摘要:
The reliability of an EL element is enhanced while the increase of the electric power consumption is suppressed. It becomes possible that in a SES drive, the reverse bias is applied to the EL element driven at a constant electric current. Moreover, the application of the reverse bias is performed by varying only the counter electrode, and thus withstand voltage of TFT and the increase of the electric power consumption due to the increase of voltage of the gate signal line drive circuit, which becomes a problem when changing greatly the electric current supplying line, can be suppressed.
公开/授权文献
- US20030209989A1 Light emitting device and drive method thereof 公开/授权日:2003-11-13