Patent ID: 7714821

Claim:
An optically compensated bend (OCB) mode liquid crystal display comprising: upper and lower driving electrodes to which a driving voltage is applied, the upper and lower driving electrodes being provided at upper and lower substrates opposed to each other, respectively; a liquid crystal layer including a plurality of liquid crystal molecules interposed between the upper and lower substrates; and at least one pair of upper and lower pre-tilt electrodes to which a voltage to shift an orientation state of a portion of the liquid crystal molecules is applied, the upper and lower pre-tilt electrodes being located substantially opposite to each other to partially cover each of the upper and lower driving electrodes and to controllably effectuate the orientation of liquid crystal molecules in the liquid crystal layer responsive to a voltage applied to the pre-tilt electrodes; wherein the OCB mode liquid crystal display is configured such that, pre-tilt voltages are applied to the pre-tilt electrodes during operation of the OCB mode liquid crystal display, at substantially the same time that a gate voltage is repeatedly applied to a gate of a transistor, and a data voltage expressing an image signal is applied to a source of the transistor, responsive to the gate voltage, thereby controlling a pixel.