Liquid crystal display device and an optimum gradation...

Details Liquid crystal display device and an optimum gradation... Liquid crystal display device and an optimum gradation...

2004-07-29

2008-10-28

Hjerpe, Richard (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S089000

Reexamination Certificate

active

07443369

ABSTRACT:
A liquid crystal display device which favorably displays an image by eliminating irregularities of the γ characteristic for every manufactured liquid crystal panel. In the liquid crystal display device, when a power source is supplied thereto, a display control circuit installed therein reads out gradation voltage data corresponding to the liquid crystal panel stored in a ROM connected to the display control circuit and sets gradation voltages in a gradation voltage setting circuit installed therein. Further, upon receiving external control signals, the display control circuit sets gradation voltages in the gradation voltage setting circuit. When the set gradation voltages are inputted to a source driver section of the liquid crystal display device, the liquid crystal panel is driven and images are displayed thereby.

REFERENCES:
patent: 6727880 (2004-04-01), Lee
patent: 7113156 (2006-09-01), Hashimoto
patent: 7119782 (2006-10-01), Sunohara et al.
patent: 2003/0231160 (2003-12-01), Yoshihara et al.

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