Keating & Bennett, LLP
Signal conversion circuit and multi-primary color liquid crystal display device comprising same
A signal conversion circuit (20) is used for a multiple-primary color liquid crystal display device (100) 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 (20) 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.
Sharp Kabushiki Kaisha
G G G G H G
G09G G09G G09G G09G H04N G09G
inventional additional additional additional inventional inventional
Yuichi Shun Kohzoh Kazunari Tomohiko
Yoshida Ueki Nakamura Tomizawa Mori