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. 08, 2006
Filed:
Jan. 29, 2002
Yoshiki Shirochi, Chiba, JP;
Hiroaki Endo, Kanagawa, JP;
Yoshiki Shirochi, Chiba, JP;
Hiroaki Endo, Kanagawa, JP;
Sony Corporation, , JP;
Abstract
Linear chromaticity conversion is used to perform color reproduction of a liquid crystal display (LCD) compatible with a cathode ray tube (CRT). An inputted signal is subjected to processing similar to processing used in the CRT display. A light source chromaticity conversion processing portion carries out a γ correction to the signal in a γ operation portion by using γ=γcrt of the same nonlinear characteristics as the CRT, and performs an operation of a chromaticity conversion matrix in a matrix operation portion. An LCD inverse γ correction portion uses γestablishing γ_lcd=γlcd/γ=1 to perform an inverse γ correction to the inputted signal. An LCD γ characteristic operation portion performs a γ correction using γ characteristics of the LCD to the signal inputted from the LCD inverse γ correction portion, outputs a picture signal, and causes an image to be displayed on the LCD.