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. 09, 2010
Filed:
Aug. 09, 2006
Takayuki Imai, Fukaya, JP;
Takashi Nakamura, Saitama, JP;
Miyuki Ishikawa, Kumagaya, JP;
Hideaki Mori, Kumagaya, JP;
Takayuki Imai, Fukaya, JP;
Takashi Nakamura, Saitama, JP;
Miyuki Ishikawa, Kumagaya, JP;
Hideaki Mori, Kumagaya, JP;
Toshiba Matsushita Display Technology Co., Ltd., Tokyo, JP;
Abstract
In order to prevent reduction in performance due to variations in illuminance of external light, a liquid crystal display unit includes: a pixel section including pixels arranged at each of intersections where a plurality of scanning lines and a plurality of signal lines intersect, and optical sensor circuits provided to at least part of the pixels; an imaging section which generates a multi-gradation image based on detection results of the optical sensor circuits; and a gradient value calculation section which calculates a gradient value which is a ratio of a variation in a gradation tendency value of the multi-gradation image to a variation in sensitivity of the optical sensor circuits.