Invention Grant
- Patent Title: Display device comprising threshold control circuit
- Patent Title (中): 显示装置包括阈值控制电路
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Application No.: US12052307Application Date: 2008-03-20
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Publication No.: US08552948B2Publication Date: 2013-10-08
- Inventor: Hiroyuki Miyake , Atsushi Umezaki
- Applicant: Hiroyuki Miyake , Atsushi Umezaki
- Applicant Address: JP
- Assignee: Semiconductor Energy Laboratory Co., Ltd.
- Current Assignee: Semiconductor Energy Laboratory Co., Ltd.
- Current Assignee Address: JP
- Agency: Husch Blackwell LLP
- Priority: JP2007-098950 20070405; JP2007-226132 20070831
- Main IPC: G09G3/32
- IPC: G09G3/32 ; G09G3/30

Abstract:
The display device includes an output circuit, a threshold control circuit which sequentially selects one of a forward bias voltage and a reverse bias voltage, and a power supply control circuit which applies one of the forward bias voltage and the reverse bias voltage which is selected to a gate of a transistor included in the output circuit. Time in which the reverse bias voltage is applied to the gate of the transistor is determined in accordance with time in which the forward bias voltage is applied to the gate of the transistor.
Public/Granted literature
- US20080246717A1 Display Device Public/Granted day:2008-10-09
Information query
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