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:
Apr. 21, 2020
Filed:
Jul. 12, 2019
Sharp Kabushiki Kaisha, Sakai, Osaka, JP;
Hidefumi Yoshida, Sakai, JP;
SHARP KABUSHIKI KAISHA, Sakai, JP;
Abstract
[Object] To provide technology that enables the characteristics of a display device to be appropriately evaluated. [Solution] Values Xn, Yn, and Zn are set based on tristimulus values obtained by measuring, by the optical measuring device, a first display state where white is displayed to fill a screen of the display device. Tristimulus values obtained by measuring a second display state by the optical measuring device are set as values X, Y, and Z. In the second display state, a color including at least one of red, green, blue, white, and black is displayed in at least part of the screen of the display device. Values L*, a*, and b* are calculated by transforming the values Xn, Yn, and Zn and the values X, Y, and Z. A color volume of a color space formed from the values L*, a*, and b* is calculated. The value Yn in the first display state and the color volume are output.