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. 25, 2002
Filed:
Oct. 26, 2000
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
An LCD projector (K ) comprising: a power source ( ); an image data source ( ) for producing an image data; a light source ( ) which is able to provide different levels of power; an LCD panel ( ) for modifying a light ray from the light source ( ) in accordance with said image data to produce light rays of an image; a projecting lens ( ) for projecting the light rays from the LCD panel ( ) onto a screen ( ) through enlargement; a control circuit ( ) for controlling an output of the power source ( ) so as to selectively set an output power: and a correcting circuit ( ) for correcting an image data before being supplied to the LCD panel ( ) so as to compensate the disturbance of the white balance caused by the change of the power of the light source ( ).