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. 20, 2010
Filed:
Apr. 02, 2007
Hiroki Nakamura, Ageo, JP;
Takashi Nakamura, Saitama, JP;
Hirotaka Hayashi, Fukaya, JP;
Norio Tada, Kumagaya, JP;
Takayuki Imai, Fukaya, JP;
Hiroki Nakamura, Ageo, JP;
Takashi Nakamura, Saitama, JP;
Hirotaka Hayashi, Fukaya, JP;
Norio Tada, Kumagaya, JP;
Takayuki Imai, Fukaya, JP;
Toshiba Matsushita Display Technology Co., Ltd., Tokyo, JP;
Abstract
A liquid crystal panel brightness controller notifies a backlight controller that an illuminance of ambient light is equal to or less than a threshold value. Upon notification, the backlight controller causes invisible light emitted, for example. The invisible light passes through a liquid crystal panel and is reflected by an imaging target and is received by photosensors. Accordingly, the decrease in the amount of the visible light received by photosensors is compensated. As a result, an image with a high S/N ratio is obtained.