Video display device and color temperature correction method...

Details Video display device and color temperature correction method... Video display device and color temperature correction method...

2006-08-01

2006-08-01

Chow, Dennis-Doon (Department: 2675)

Computer graphics processing and selective visual display system

Computer graphics processing

Attributes

C345S593000, C345S603000, C345S690000, C348S223100, C348S225100

Reexamination Certificate

active

07084880

ABSTRACT:
A video display apparatus comprises a color temperature correction circuit which controls temperature color of an input video signal; a display device which displays an image upon basis of said video signal corrected by said color temperature correction circuit; and a signal producing circuit which obtains a hue signal from said input video signal. The color temperature correction circuit controls said hue signal corresponding to the video signal of white color attributes, which has luminance equal to or greater than a predetermined value and chroma saturation equal to or less than a predetermined value, whereby achieving the color temperature correction.

REFERENCES:
patent: 5177599 (1993-01-01), Takagi et al.
patent: 6611249 (2003-08-01), Evanicky et al.
patent: 6697127 (2004-02-01), Suzuki
patent: 04-079692 (1992-03-01), None
patent: 07-023414 (1995-01-01), None
patent: 2001-125557 (2001-05-01), None

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