Method of driving a liquid crystal device

A method of driving a liquid crystal device that has a pair of substrates with liquid crystal provided therebetween, and that has regions of different threshold voltages distributed therein utilizes one selected from driving waveforms or a combination of them, such as applying reset pulses for returning molecules or the layer structure of the liquid crystal to the initial state, and setting relaxation duration, the introduction of electric field orientation-processed pulses, black writing, the introduction of superimposed part-included pulses for compensating the transformation of an effective voltage waveform caused by data voltage, and the introduction of high-frequency AC pulses or low-frequency AC pulses for enhancing the stability of memory effects and relaxing the polarization of liquid crystal molecules and the orientation film.