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:
Sep. 06, 2005
Filed:
Jun. 04, 2004
Ken Kumakura, Kawasaki, JP;
Kazuyoshi Yamada, Yokohama, JP;
Hideaki Ohki, Yokohama, JP;
Hiroshi Ohtaka, Kawasaki, JP;
Toshio Ueda, Kawasaki, JP;
Ken Kumakura, Kawasaki, JP;
Kazuyoshi Yamada, Yokohama, JP;
Hideaki Ohki, Yokohama, JP;
Hiroshi Ohtaka, Kawasaki, JP;
Toshio Ueda, Kawasaki, JP;
Fujitsu Hitachi Plasma Display Limited, Kawasaki, JP;
Abstract
The color reproduction correction circuit which corrects the color distortion caused when color signals using the first combination of the three primary colors are reproduced in a color display of the second combination of the different primary color sources has been disclosed, wherein: a provided color correction circuit generates the mixed color signal by multiplying the color signal in question by the specified coefficients and adding the mixed color signal to other color signals; the mixed colors in the second combination are used as primary color light sources in the second combination; the specified coefficients are determined so that these mixed color light sources are made close to the coordinates of the primary color light sources of the first combination; and the luminescent chromaticity values of the three primary colors are corrected so that the chromaticity values of the device match those specified by the signal system.