Abstract: An system is disclosed for driving a liquid crystal display for automatically adjusting a level of a common voltage at the point that a positive polarity gray scale level voltage and a negative polarity gray scale level voltage are supplied to a liquid crystal display panel. A plurality of gate lines and a plurality of data lines are provided at a liquid crystal display panel. A gate driver supplies a gate pulse to the plurality of gate lines. A data driver supplies a positive polarity gray scale level voltage and a negative polarity gray scale level voltage to the plurality of data lines. A controller controls a common voltage level supplied to the liquid crystal display panel in accordance with a supply point of a gate pulse.

Abstract: An system is disclosed for driving a liquid crystal display for automatically adjusting a level of a common voltage at the point that a positive polarity gray scale level voltage and a negative polarity gray scale level voltage are supplied to a liquid crystal display panel. A plurality of gate lines and a plurality of data lines are provided at a liquid crystal display panel. A gate driver supplies a gate pulse to the plurality of gate lines. A data driver supplies a positive polarity gray scale level voltage and a negative polarity gray scale level voltage to the plurality of data lines. A controller controls a common voltage level supplied to the liquid crystal display panel in accordance with a supply point of a gate pulse.