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:
Jan. 12, 2016
Filed:
Jul. 20, 2012
Hiroaki Nakasu, Osaka, JP;
Kentaroh Irie, Osaka, JP;
Masae Kawabata, Osaka, JP;
SHARP KABUSHIKI KAISHA, Osaka, JP;
Abstract
In a liquid crystal display device adopting a time-division scheme to improve viewing angle characteristics, the occurrence of horizontal lines on a screen is suppressed. When first output gray scales are obtained for one-line data, the sum total of differences between 'source voltages for a horizontal scanning period immediately before a horizontal scanning period during which a processing target line is placed in a selected state' and 'source voltages determined based on the first output gray scales obtained by a gray scale value obtaining unit' for all source bus lines is determined (step S). Then, based on the amount of CS ripple corresponding to the sum total determined at step S, correction addition/subtraction values are obtained from a polarity-by-polarity background look-up table, for the respective picture elements included in the processing target line (step S). Then, second output gray scales are determined in an addition/subtraction process of the first output gray scales and the correction addition/subtraction values (step S).