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. 26, 2013
Filed:
Oct. 25, 2006
Kozo Takahashi, Tokyo, JP;
Asahi Yamato, Tokyo, JP;
Kiyoshi Nakagawa, Yokohama, JP;
Takaaki Kawai, Tsu, JP;
Kozo Takahashi, Tokyo, JP;
Asahi Yamato, Tokyo, JP;
Kiyoshi Nakagawa, Yokohama, JP;
Takaaki Kawai, Tsu, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A drive circuit of a liquid crystal display device performs line inversion drive based on a correction video signal V. A look-up table () includes two types of tables having stored therein correction values for use in overshoot drive. Based on a current-frame video signal X, a previous-frame video signal Y stored in a frame memory (), and a polarity-reversing signal REV, a correction process portion () reads a correction value from the look-up table (), and outputs the correction value being read as the correction video signal V. In such a manner, a correcting circuit () is used to control the degree of overshoot in accordance with the polarity-reversing signal REV. Thus, it is possible to suitably control the change in pixel brightness regardless of the polarity of the applied voltage, thereby preventing any fringes from being generated while displaying moving images.