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:
Jun. 03, 2025
Filed:
Mar. 27, 2024
Seiko Epson Corporation, Tokyo, JP;
Sebdani Mahmood Mazrouei, Markham, CA;
Kwok Lap Jimmy Lai, Vancouver, CA;
Kumar Anandabairavasamy Anand, Richmond, CA;
SEIKO EPSON CORPORATION, , JP;
Abstract
A circuit apparatus includes a storage unit, an illumination luminance calculation circuit, and a color correction circuit. The storage unit stores a look-up table indicating an attenuation factor distribution of light with respect to a distance between a light source element and a pixel. The illumination luminance calculation circuit calculates, based on attenuation factor information output from the look-up table and light source luminance information indicating luminance of light emitted by each light source element, illumination luminance information indicating luminance at which a target pixel of the display panel is illuminated by a plurality of light source elements. The color correction circuit performs color correction on input image data based on the illumination luminance information. The look-up table outputs the attenuation factor information with a first distance resolution in a first distance range and outputs the attenuation factor information with a second distance resolution higher than the first distance resolution in a second distance range in which a slope of the attenuation factor distribution is larger than that in the first distance range.