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. 02, 2009
Filed:
May. 29, 2002
Hideki Matsuda, Fujimi-machi, JP;
Osamu Wada, Ima, JP;
Hideki Matsuda, Fujimi-machi, JP;
Osamu Wada, Ima, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
An image display system that performs grayscale correction in accordance with the on-site environment, to display an image, is provided with: a calibration signal generation section () that generates calibration signals for displaying each of first and second grayscale correction images having two grayscale values of a single color, a color-light sensor () that measures luminance values under an ideal environment and the on-site environment for each of the first and the second grayscale correction images projected on a screen, a 1D-LUT generation section () that generates a 1D-LUT based on the luminance values measured by the color-light sensor (), and a grayscale correction section () that stores the 1D-LUT generated by the 1D-LUT generation section () and performs grayscale correction.