Invention Grant
- Patent Title: Light-emitting device
- Patent Title (中): 发光装置
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Application No.: US12352688Application Date: 2009-01-13
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Publication No.: US08044598B2Publication Date: 2011-10-25
- Inventor: Ryota Fukumoto , Hiroyuki Miyake , Yoshifumi Tanada , Kei Takahashi
- Applicant: Ryota Fukumoto , Hiroyuki Miyake , Yoshifumi Tanada , Kei Takahashi
- 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: Husch Blackwell LLP
- Priority: JP2008-005148 20080115
- Main IPC: G09G3/10
- IPC: G09G3/10

Abstract:
The amplitude of a potential of a signal line is decreased and a scan line driver circuit is prevented from being excessively loaded. A light-emitting device includes a light-emitting element; a first power supply line having a first potential; a second power supply line having a second potential; a first transistor for controlling a connection between the first power supply line and the light-emitting element; a second transistor, which is controlled in accordance with a video signal, whether outputting the second potential applied from the second power supply line or not; a switching element for selecting either the first potential applied from the first power supply line or the output of the second transistor; and a third transistor for selecting whether the first potential or the output of the second transistor which is selected by the switch is applied to a gate of the first transistor.
Public/Granted literature
- US20090179572A1 Light-Emitting Device Public/Granted day:2009-07-16
Information query
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