Patent ID: 8605023

Claim:
An apparatus for driving an LCD device, comprising: an LCD panel; a memory having pre-stored therein image pattern data for a plurality of patterns; a polarity control signal generator that compares all received image data for a unit of frame with the pre-stored image pattern data of the plurality of patterns for the unit of frame and generates from a reference polarity control signal, a polarity control signal identifying a new inversion method when the received image data coincides with the pre-stored image pattern data for at least one of the plurality of patterns, wherein each of the plurality of pre-stored image pattern data identifies a pattern of the received image data in which crosstalk and greenish color occur due to a difference between a data voltage of positive polarity (+) and a data voltage of negative polarity (−) supplied to one horizontal line; a data driver configured to receive the polarity control signal and convert an inversion method applied to the LCD panel to the new inversion method identified by the polarity control signal, and further configured to supply the received image data to the LCD panel; a gate driver that supplies scan pulses to the LCD panel; and a timing controller that controls the data driver and the gate driver.