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. 08, 2013
Filed:
Apr. 24, 2008
Yoshiki Kurokawa, Tokyo, JP;
Yukari Katayama, Chigasaki, JP;
Hiroki Awakura, Hitachinaka, JP;
Naoki Takada, Yokohama, JP;
Yasuyuki Kudo, Fujisawa, JP;
Akihito Akai, Yokohama, JP;
Goki Toshima, Yokohama, JP;
Akihisa Aoyama, Kokubunji, JP;
Goro Sakamaki, Fuchu, JP;
Yoshiki Kurokawa, Tokyo, JP;
Yukari Katayama, Chigasaki, JP;
Hiroki Awakura, Hitachinaka, JP;
Naoki Takada, Yokohama, JP;
Yasuyuki Kudo, Fujisawa, JP;
Akihito Akai, Yokohama, JP;
Goki Toshima, Yokohama, JP;
Akihisa Aoyama, Kokubunji, JP;
Goro Sakamaki, Fuchu, JP;
Renesas Electronics Corporation, Kanagawa, JP;
Abstract
In a display device and a display driver, when a grayscale of a display image is equal to or lower than a specific grayscale value obtained from a histogram of the display image, a display grayscale is extended with a linear function. On the other hand, when a grayscale of a display image is equal to or higher than the specific grayscale value, histogram equalization of a part higher than the specific grayscale value is performed, and the display grayscale is extended with a non-linear function obtained from the histogram equalization.