Patent ID: 7176866

Claim:
A driving circuit of a liquid crystal display device, having a switching element and liquid crystal capacitance, at respective crossover points between a plurality of gate lines and a plurality of source lines, said driving circuit comprising: a gradation voltage generation circuit for feeding a plurality of voltages higher than a predetermined potential and a plurality of voltages lower than the predetermined potential; a source line output part for sending out outputs of the gradation voltage generation circuit to the respective source lines such that odd numbered columns and even numbered columns of the plurality of the source lines, respectively, have potentials based the predetermined potential, having polarities opposite to each other; first shorting means for shorting the odd numbered columns of the source lines with each other; second shorting means for shorting the even numbered columns of the source lines with each other; third shorting means for shorting the odd numbered columns of the source lines with the even numbered columns of the source lines; and fourth shorting means for shorting a first voltage higher than the predetermined potential, among the plurality of the voltages generated by the gradation voltage generation circuit, and a second voltage lower than the predetermined potential, among the plurality of the voltages generated by the gradation voltage generation circuit, with the odd numbered columns of the source lines and the even numbered columns of the source lines, respectively, after switching over between the first voltage and second voltages in a predetermined cycle.