| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an OCB (Optically Compensated Birefringence) mode liquid crystal display device with a decreased blurring effect and an enhanced brightness, and to provide a method of driving the same. Ž<P>SOLUTION: The liquid crystal display device having an OCB mode wherein a high voltage for carrying out a bend transition of an OCB liquid crystal is applied as a reset voltage to a common electrode of the OCB liquid crystal and the method of driving the same are provided. In the liquid crystal display device, a voltage of a DC-DC converter is applied to the common electrode to reset the OCB liquid crystal at an initial stage of every frame or before applying data to each pixel. In addition, when one frame is divided into red, green and blue fields and they are sequentially driven, the voltage of the DC-DC converter is applied to the common electrode to reset the OCB liquid crystal before each field begins. The DC-DC converter applies a voltage of 15-30 V to the common electrode. An optical transmittance of the liquid crystal when reset becomes zero (black state). Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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