CIRCUIT FOR DRIVING LIQUID CRYSTAL DISPLAY DEVICE

摘要

PURPOSE: A circuit for driving a liquid crystal display device is provided to reduce the frame response and the horizontal crosstalk by increasing the rate of a scanning time per frame versus a scanning time per scanning line. CONSTITUTION: A driving voltage generating unit(6) generates voltages of each level required to a scanning electrode driving signal and a data electrode driving signal of a liquid crystal panel. A controller counts a clock number of own clock generating unit according to a duty selection input, to sequentially output a strobe signal and a frame signal for determining the length of a driving signal overlapping period of the driven scanning electrode sequentially. A scanning electrode driving buffer determines a selection pulse period and a non-selection period of the scanning electrode driving signal and makes a scanning electrode driving signal by using the strobe signal and the frame signal. A data electrode driving buffer(3) makes a data signal by comparing a present data signal with a previous data signal.