- 专利标题: Light emitting device
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申请号: US14587763申请日: 2014-12-31
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公开(公告)号: US09391132B2公开(公告)日: 2016-07-12
- 发明人: Jun Koyama
- 申请人: Semiconductor Energy Laboratory Co., Ltd.
- 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
- 优先权: JP11-304679 19991026; JP11-337003 19991129
- 主分类号: H01L27/32
- IPC分类号: H01L27/32 ; H01L51/52 ; G09G3/32 ; H01L51/50 ; H01L27/12 ; H01L29/786 ; G09G3/20
摘要:
An electro-optical device for performing time division gray scale display and which is capable of arbitrarily setting the amount of time during which light is emitted by EL elements is provided. From among n sustain periods Ts1, . . . , Tsn, the brightness of light emitted by the EL elements during at least one sustain period is set to be always lower than the brightness of light emitted by the EL elements during the other sustain periods, and the sustain periods are extended by the amount that the brightness has dropped. In accordance with the above structure, the sustain periods can be extended by lowering the setting of the brightness of light emitted by the EL elements.
公开/授权文献
- US20150108465A1 Electro-Optical Device 公开/授权日:2015-04-23