Invention Grant
- Patent Title: Driver circuit, electro-optical device, and electronic instrument
- Patent Title (中): 驱动电路,电光装置和电子仪器
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Application No.: US11898595Application Date: 2007-09-13
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Publication No.: US08089437B2Publication Date: 2012-01-03
- Inventor: Kazuhiro Maekawa
- Applicant: Kazuhiro Maekawa
- Applicant Address: JP Tokyo
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP Tokyo
- Agency: Oliff & Berridge, PLC
- Priority: JP2006-254161 20060920; JP2006-254162 20060920
- Main IPC: G09G3/36
- IPC: G09G3/36

Abstract:
A driver circuit which drives a source line of an electro-optical device includes a source line driver section which supplies a grayscale voltage corresponding to grayscale data to the source line, a source output switch section which short-circuits the source line and a common line connected with a capacitor before the source line driver section drives the source line, and a charge recycle control section which controls the source output switch section. The charge recycle control section determines whether or not to short-circuit the source line and the common line in source line units based on the grayscale data and polarity of a common electrode voltage supplied to a common electrode opposite to a pixel electrode of the electro-optical device. The source output switch section short-circuits the source line and the common line based on the determination result of the charge recycle control section.
Public/Granted literature
- US20080068316A1 Driver circuit, electro-optical device, and electronic instrument Public/Granted day:2008-03-20
Information query
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