Invention Grant
- Patent Title: Light emitting device and driving method of the same
- Patent Title (中): 发光装置及其驱动方法
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Application No.: US11568158Application Date: 2005-04-14
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Publication No.: US07791571B2Publication Date: 2010-09-07
- Inventor: Hisashi Ohtani , Yoshifumi Tanada , Aya Anzai
- Applicant: Hisashi Ohtani , Yoshifumi Tanada , Aya Anzai
- Applicant Address: JP Atsugi-shi, Kanagawa-ken
- Assignee: Semiconductor Energy Laboratory Co., Ltd.
- Current Assignee: Semiconductor Energy Laboratory Co., Ltd.
- Current Assignee Address: JP Atsugi-shi, Kanagawa-ken
- Agency: Fish & Richardson P.C.
- Priority: JP2004-126798 20040422
- International Application: PCT/JP2005/007574 WO 20050414
- International Announcement: WO2005/104072 WO 20051103
- Main IPC: G09G3/30
- IPC: G09G3/30 ; G09G3/32
Abstract:
The invention provides a light emitting device which can suppress the reduction of luminance in accordance with the light emission time and light emission at a high luminance. Moreover, the invention relates to a driving method which can suppress the reduction of luminance in accordance with the light emission time and light emission at a high luminance. The light emitting device of the invention can display a plurality of colors of which brightness and chromaticity are different by visually mixing light emission of a plurality of light emitting elements of which light emission colors are different. When a visually mixed display color is formed, a white light emission is exhibited.
Public/Granted literature
- US20070211084A1 LIGHT EMITTING DEVICE AND DRIVING METHOD OF THE SAME Public/Granted day:2007-09-13
Information query
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