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:
Apr. 21, 2009
Filed:
May. 24, 2006
Susumu Tanase, Kadoma, JP;
Atsuhiro Yamashita, Osaka, JP;
Yukio Mori, Hirakata, JP;
Haruhiko Murata, Ibaraki, JP;
Koji Marumo, Gifu, JP;
Kazunobu Mameno, Kyoto, JP;
Susumu Tanase, Kadoma, JP;
Atsuhiro Yamashita, Osaka, JP;
Yukio Mori, Hirakata, JP;
Haruhiko Murata, Ibaraki, JP;
Koji Marumo, Gifu, JP;
Kazunobu Mameno, Kyoto, JP;
Sanyo Electric Co., Ltd., Moriguchi, Osaka, JP;
Abstract
A display device has: an RGB-RGBW conversion circuit that converts RGB signals fed thereto into RGBW signals; a display panel that has a plurality of dots each composed of four, namely R, G, B, and W, unit pixels and that displays an image based on the RGBW signals; a defect position specifier that specifies, if a unit pixel is found defective, a position of the defective pixel on the display panel; and a conversion rate controller that controls the rate at which, when the RGB signals are converted into the RGBW signals, the RGB signals are converted into a W signal according to the position of the defective pixel. If the defective pixel is a W pixel, the conversion rate for pixels adjacent thereto is made lower than the standard conversion rate set for the entire display panel.