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:
Jan. 01, 2013
Filed:
Mar. 19, 2012
Yoshiki Kurokawa, Tokyo, JP;
Yasuyuki Kudo, Tokyo, JP;
Hiroyuki Nitta, Fujisawa, JP;
Kazuki Homma, Kodaira, JP;
Junya Takeda, Yokohama, JP;
Yoshiki Kurokawa, Tokyo, JP;
Yasuyuki Kudo, Tokyo, JP;
Hiroyuki Nitta, Fujisawa, JP;
Kazuki Homma, Kodaira, JP;
Junya Takeda, Yokohama, JP;
Renesas Electronics Corporation, Kanagawa, JP;
Abstract
A display drive circuit of the invention has: an initial-color-gamut-apex-coordinate-storing unit capable of storing initial color gamut apex coordinates; a user-target-color-gamut-apex-coordinate-storing unit capable of storing user target color gamut apex coordinates; a saturation-expansion-coefficient-deciding unit for deciding expansion coefficients of saturation data based on the initial and user target color gamut apex coordinates; and an expansion unit for expanding saturations of display data based on the saturation expansion coefficients. The expansion coefficients of saturation data are decided based on the initial and user target color gamut apex coordinates, and saturations of display data are expanded according to the expansion coefficients. Thus, the degree of expanding the saturations can be controlled for each color gamut or each of R, G and B color properties of an LC display panel.