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. 27, 2006
Filed:
Oct. 16, 2001
Applicants:
Mitsuo Ohashi, Tokyo, JP;
Katsue Ueda, Osaka, JP;
Inventors:
Mitsuo Ohashi, Tokyo, JP;
Katsue Ueda, Osaka, JP;
Assignee:
Eizo Nanao Corporation, Ishikawa, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F 1/1335 (2006.01); F21V 7/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
The quantity of light from a backlight is monitored by a first photodetector, and the environment on the part of a user is monitored by a second photodetector disposed in the rear of a liquid crystal panel, not on the front thereof. It is possible to exclude the influence of external light from the user side on the first photodetector which detects the quantity of light from the backlight.