Patent ID: 8264440

Claim:
An LCD device having pixel electrodes and pixel driving transistors, each of the pixel driving transistor having a drain coupled to the pixel electrode and a source coupled to a source bus, the pixel driving transistor controlling a voltage applied to the pixel electrode according to a gate voltage applied to a gate thereof, the LCD device comprising: a capacitor coupled to the gate of the pixel driving transistor for holding the voltage at the gate of the pixel driving transistor; a gate voltage control transistor having a drain coupled to a connection point between the gate of the pixel driving transistor and the capacitor, a source coupled to the source bus and a gate coupled to a gate line, for controlling the voltage applied to the capacitor; and a source driving circuit utilizing adjacent source bus lines to alternately switch the voltage held by the capacitor among several different high voltages or several different low voltages to drive the source of the pixel driving transistor.