A liquid crystal display includes a first switch for outputting a first electrode voltage according to a first data signal and a first gate signal, a second switch for outputting a second electrode voltage according to a second data signal and the first gate signal, a liquid crystal capacitor for controlling liquid-crystal transmittance according to the difference between the first and second electrode voltages, a first storage capacitor for storing the first electrode voltage, a third switch, a second storage capacitor for storing the second electrode voltage, and a fourth switch. The third switch controls the operation of furnishing a first common voltage to the first storage capacitor according to a second gate signal, for adjusting the first electrode voltage. The fourth switch controls the operation of furnishing a second common voltage to the second storage capacitor according to the second gate signal, for adjusting the second electrode voltage.