Patent ID: 8106870

Claim:
A liquid crystal display, comprising: a liquid crystal panel receiving reference voltages; an analysis unit receiving current frame display signals, analyzing data voltages corresponding to the current frame display signals and data voltages corresponding to an adjacent frame display signals, comparing each data voltage corresponding to the current frame display signals with a corresponding one of the data voltages corresponding to the adjacent frame display signals to get a first subtraction result there between, polarity reversing the data voltages corresponding to the current frame display signals to get polarity reversing display signals, comparing each polarity reversing display signal to the corresponding one of the data voltages corresponding to the adjacent frame display signals to get a second subtraction result, and finally outputting a corresponding polarity controlling signal and selecting one of the polarity reversing display signals and the data voltages corresponding to the current frame display signals as output data voltages according to a smaller subtraction result between the first and the second subtraction results; and a polarity resetting circuit electrically connected to the analysis unit, receiving the current frame display signals and resetting the current frame display signals according to the output data voltages and the corresponding polarity controlling signal to attain resetted display signals.