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 S110). Then, based on the amount of CS ripple corresponding to the sum total determined at step S110, 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 S120).

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 S110). Then, based on the amount of CS ripple corresponding to the sum total determined at step S110, 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 S120).