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:
Feb. 10, 2009
Filed:
Mar. 30, 2005
Kazuo Yoshioka, Tokyo, JP;
Tomohiro Nakagawa, Tokyo, JP;
Yoshiyuki Shirasaki, Tokyo, JP;
Takashi Katagiri, Tokyo, JP;
Kazuo Yoshioka, Tokyo, JP;
Tomohiro Nakagawa, Tokyo, JP;
Yoshiyuki Shirasaki, Tokyo, JP;
Takashi Katagiri, Tokyo, JP;
NEC - Mitsubishi Electric Visual Systems Corp., Tokyo, JP;
Abstract
An illuminance sensor detects an illuminance value for an environment in which a display device is placed and provides the illuminance value to a controller. The controller determines whether to cause the display device to make a transition to a power saving mode or not in accordance with the illuminance value inputted thereto. For the transition to the power saving mode, the controller stops the operation of a backlight drive signal generator to turn off a backlight unit, and stops the supply of power and a display signal to a liquid crystal panel.