Patent ID: 8223137

Claim:
An LCD device, comprising: an LCD panel provided with a plurality of pixels, the pixels being defined by a plurality of gate and data lines formed perpendicularly; an auxiliary storage capacitor formed in each of the pixels; a gate driver to drive the gate lines in sequence by supplying a scan pulse voltage to the gate lines of the LCD panel, the scan pulse voltage being comprised of a high gate voltage and a low gate voltage; and a discharger to supply a pulse voltage to the gate line in response to a source voltage for operating the LCD panel, the pulse voltage applied to the gate line by the discharger enabling the auxiliary storage capacitor to be discharged to the ground voltage, wherein the amplitude of the pulse voltage outputted from the discharger is the same as the amplitude of the high gate voltage, wherein the amplitude of the high gate voltage is greater than the ground voltage, wherein the discharger comprises: an inverter that selectively outputs the low gate voltage or the pulse voltage based on the intensity of the source voltage, and a first switching element that applies the pulse voltage to the gate line according to the output of the inverter, and wherein the inverter comprises: a second switching element that outputs the pulse voltage in response to the source voltage when the applied source voltage falls to 0V, and applies the pulse voltage to a gate terminal of the first switching element to turn on the first switching element, and a third switching element that outputs the low gate voltage in response to the source voltage when the applied source voltage is maintained as a predetermined voltage value, and applies the low gate voltage to the gate terminal of the first switching element to turn off the first switching element.