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. 22, 2008
Filed:
Oct. 04, 2004
Hironori Takaoka, Kikuchi-gun, JP;
Hisaharu Oura, Kikuchi-gun, JP;
Susumu Shibata, Kikuchi-gun, JP;
Tetsuya Ikemoto, Kikuchi-gun, JP;
Hironori Takaoka, Kikuchi-gun, JP;
Hisaharu Oura, Kikuchi-gun, JP;
Susumu Shibata, Kikuchi-gun, JP;
Tetsuya Ikemoto, Kikuchi-gun, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A liquid crystal display according to the present invention can prevent interference fringe on a display panel due to a switching noise of a DC/DC converter, therefore a high-quality image can be displayed. Either of input signals for a timing control circuit is also supplied to a PLL circuit and the DC/DC converter is controlled by an output signal of the PLL circuit, thereby enables to synchronize a switching frequency of the DC/DC converter and control signal.