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. 22, 2011
Filed:
Oct. 13, 2009
Candice Helen Brown Elliott, Vallejo, CA (US);
Seok Jin Han, Santa Rosa, CA (US);
Moon Hwan Im, Santa Rosa, CA (US);
IN Chul Baek, Santa Rosa, CA (US);
Michael Francis Higgins, Duncans Mills, CA (US);
Paul Higgins, Sebastopol, CA (US);
Candice Helen Brown Elliott, Vallejo, CA (US);
Seok Jin Han, Santa Rosa, CA (US);
Moon Hwan Im, Santa Rosa, CA (US);
In Chul Baek, Santa Rosa, CA (US);
Michael Francis Higgins, Duncans Mills, CA (US);
Paul Higgins, Sebastopol, CA (US);
Abstract
Sub-pixel rendering with gamma adjustment allows the luminance of the sub-pixel arrangement to match the non-linear gamma response of the human eye's luminance channel. For each of a subset of input sampled data indicating a region of an input image, a gamma-adjusted data value is generated for each input image data value in the subset using a local average of at least two input image data values. A sub-pixel rendering operation uses the subset of gamma-adjusted data values and the subset of input image data values to produce an output data value for each sub-pixel element on the display panel. A plurality of output data values collectively indicates an output image. The gamma adjustment allows the sub-pixel rendering to operate independently of the actual gamma of a display device. The sub-pixel rendering techniques with gamma adjustment may improve image contrast in high spatial frequency portions of an image.