Liquid crystal display device

Details Liquid crystal display device Liquid crystal display device

2008-10-21

2011-11-08

Wong, Eric (Department: 2883)

Liquid crystal cells, elements and systems

Particular excitation of liquid crystal

Electrical excitation of liquid crystal

C349S129000

Reexamination Certificate

active

08054393

ABSTRACT:
The present invention provides a liquid crystal display device used in miniaturized portable equipment which exhibits favorable display quality while decreasing a load applied to a driver circuit which supplies a video signal line to pixel electrodes. In a liquid crystal display device which includes liquid crystal display elements and a liquid crystal driving circuit, a boosting circuit is provided to a pixel portion. The boosting circuit, after writing a video signal in a pixel electrode and one electrode of a boosting capacitance, brings the pixel electrode into a floating state. Then, by applying the video signal to another electrode of the boosting capacitance, a voltage of the pixel electrode is boosted or dropped.

REFERENCES:
patent: 7834949 (2010-11-01), Tasaka et al.
patent: 2006/0197554 (2006-09-01), Jinta
patent: 2002-278517 (2002-09-01), None

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