Computer graphics processing and selective visual display system – Display driving control circuitry – Controlling the condition of display elements
Patent
1996-12-20
2000-05-30
Hjerpe, Richard A.
Computer graphics processing and selective visual display system
Display driving control circuitry
Controlling the condition of display elements
345 87, 345 92, 345 99, G09G 500
Patent
active
060696206
ABSTRACT:
The present invention relates to a driving method of a liquid crystal display device using an OCB (optically compensated birefringence) which realizes a wide view-field angle and high-speed response, and has an object of providing a driving method of a liquid crystal display device which method causes an OCB cell to transfer from a splay orientation state to a bend orientation state in short time.
In a driving method of a liquid crystal display device using an OCB cell, gate on/off periods of a TFT are controlled at a start of a display operation, each pixel is caused to have bend orientation by a strong electric field that is generated between a gate electrode and a common electrode, and, at the same time, a voltage that is higher than that to generate an electric field necessary to maintain bend orientation is applied between a display electrode and the common electrode, to thereby effect transfer to bend orientation in short time.
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Kimura Yasuhiro
Kuniaki Sueoka
Nakamura Hajime
Taira Yoichi
Uchida Tatsuo
Hjerpe Richard A.
International Business Machines - Corporation
Sbrollini, Esq. Jay P.
Tran Henry N.
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