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:
Oct. 20, 2015
Filed:
Dec. 22, 2011
Yuichi Yoshida, Osaka, JP;
Tomohiko Mori, Osaka, JP;
Kazunari Tomizawa, Osaka, JP;
Kohzoh Nakamura, Osaka, JP;
Shun Ueki, Osaka, JP;
Yuichi Yoshida, Osaka, JP;
Tomohiko Mori, Osaka, JP;
Kazunari Tomizawa, Osaka, JP;
Kohzoh Nakamura, Osaka, JP;
Shun Ueki, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A signal conversion circuit () is used for a multiple-primary color liquid crystal display device () which performs color display using four primary colors of red displayed by a red-sub pixel (R), green displayed by green-sub pixel (G), blue displayed by blue-sub pixel (B), and yellow displayed by yellow-sub pixel (Ye), and converts an input three-primary color video signal into a multiple-primary color video signal corresponding to four primary colors. The signal conversion circuit () performs signal conversion such that a gray scale level of the yellow-sub pixel (Ye) is higher than a gray scale level of the green-sub pixel (G) in at least some cases from among cases in which a red gray-scale level r, a green gray-scale level g, and a blue gray-scale level b which are displayed by the three-primary color video signal satisfy a relationship of r>g>b.