The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 01, 2006
Filed:
Mar. 07, 2002
Katsunobu Kimura, Yokohama, JP;
Takaaki Matono, Yokohama, JP;
Haruki Takata, Yokohama, JP;
Takeshi Sakai, Yokohama, JP;
Wataru Kato, Chigasaki, JP;
Katsunobu Kimura, Yokohama, JP;
Takaaki Matono, Yokohama, JP;
Haruki Takata, Yokohama, JP;
Takeshi Sakai, Yokohama, JP;
Wataru Kato, Chigasaki, JP;
Hitachi, Ltd., Tokyo, JP;
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.