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:
Mar. 05, 2013
Filed:
Jun. 04, 2009
Takao Muroi, Osaka, JP;
Kohji Fujiwara, Osaka, JP;
Takayuki Murai, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
There is provided an image display device capable of suppressing the occurrence of a color shift while ensuring a sufficient color reproduction range. An in-area maximum luminance obtaining unit () divides an input image () into a plurality of areas and obtains, for each of RGB colors, a maximum luminance value () in each area. A weighting coefficient calculating unit () obtains the maximum luminance values () for the respective RGB colors for all of the areas, and determines weighting coefficients () which are required upon an LED luminance adjustment process, based on an mean value of the maximum luminances values () for each color. An LED luminance adjusting unit () adjusts the luminances of respective RGB color LEDs in each area to suppress the occurrence of a color shift, based on the maximum luminance values () obtained by the in-area maximum luminance obtaining unit () and the weighting coefficients () determined by the weighting coefficient calculating unit ().
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile