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. 17, 2004
Filed:
Oct. 26, 2000
Shinichiro Miura, Kanagawa, JP;
Kazuhiro Nakagomi, Chiba, JP;
Sony Corporation, Tokyo, JP;
Abstract
A liquid crystal display apparatus includes a liquid crystal module for displaying an image thereon, a backlight for emitting light from the rear surface of the liquid crystal module, and an inverter for controlling the backlight. The inverter drives the backlight at a predetermined oscillation frequency, based on pulse signals which are pulse-width modulated and are in synchronization with vertical synchronization signals. The backlight is turned off while the liquid crystal module is being scanned for an image of the next field to be displayed, and is turned on when the scanning is complete and the liquid crystal module is ready to display the refreshed image. Accordingly, undesirable afterimages such as trailing do not appear in moving images.