Liquid crystal cells – elements and systems – Particular excitation of liquid crystal – Electrical excitation of liquid crystal
Reexamination Certificate
2011-07-12
2011-07-12
Nguyen, Dung T. (Department: 2871)
Liquid crystal cells, elements and systems
Particular excitation of liquid crystal
Electrical excitation of liquid crystal
C349S041000, C349S139000
Reexamination Certificate
active
07978274
ABSTRACT:
An object of the invention is to provide a circuit technique which enables reduction in power consumption and high definition of a display device. A switch controlled by a start signal is provided to a gate electrode of a transistor, which is connected to a gate electrode of a bootstrap transistor. When the start signal is input, a potential is supplied to the gate electrode of the transistor through the switch, and the transistor is turned off. The transistor is turned off, so that leakage of a charge from the gate electrode of the bootstrap transistor can be prevented. Accordingly, time for storing a charge in the gate electrode of the bootstrap transistor can be shortened, and high-speed operation can be performed.
REFERENCES:
patent: 7106292 (2006-09-01), Moon
patent: 7173676 (2007-02-01), Jeon et al.
patent: 2003/0043104 (2003-03-01), Lee et al.
patent: 2005/0001805 (2005-01-01), Jeon et al.
patent: 2005/0264514 (2005-12-01), Kim et al.
patent: 2006/0256066 (2006-11-01), Moon
patent: 2007/0001991 (2007-01-01), Jang et al.
patent: 2007/0024770 (2007-02-01), Jang et al.
patent: 2004-157508 (2004-06-01), None
patent: 2004-334216 (2004-11-01), None
Jin Young Choi et al.; “P-2181,Late-News Poster: A Compact and Cost-efficient TFT-LCD through the Triple-Gate Pixel Structure”;SID 06 Digest; pp. 274-276: 2006.
YongSoon Lee et al.; “16.2: Advanced TFT-LCD Data Line Reduction Method”;SID 06 Digest; pp. 1083-1086; 2006.
Chinese Office Action issued in Application No. 200710152981.1 on Jun. 24, 2010, and full English translation, 17 pages.
Miyake Hiroyuki
Umezaki Atsushi
Fish & Richardson P.C.
Nguyen Dung T.
Semiconductor Energy Laboratory Co,. Ltd.
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