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:
Jul. 10, 2012
Filed:
Aug. 15, 2008
Takashi Kunimori, Tottori, JP;
Yasushi Yamazaki, Azumino, JP;
Takashi Sato, Chino, JP;
Masanori Yasumori, Tottori, JP;
Takashi Kunimori, Tottori, JP;
Yasushi Yamazaki, Azumino, JP;
Takashi Sato, Chino, JP;
Masanori Yasumori, Tottori, JP;
Sony Corporation, Tokyo, JP;
Abstract
The invention provides a display unit that has a display area and first and second photodetectorsandon a substrate and outputs as a light intensity signal S a light intensity detected by the first and second photodetectorsand. The first photodetectorincludes a first photodetection circuit LSoutputting a first output signal Sa to an ambient light photosensor reader, and the second photodetectorincludes a light-reducing unit and a second photodetection circuit LSoutputting a second output signal Sb to an ambient light photosensor reader. The ambient light photosensor readerincludes a photodegradation factor calculatorcalculating a photodegradation reparation factor K, a photodegradation rate calculatorderiving a photodegradation rate D based on the photodegradation reparation factor K, and a light signal output unitoutputting a light intensity signal S based on the photodegradation rate D.