Patent ID: 6975297
Filing Date: 2005-12-13
Classification: G09G

Abstract:
1. A method for driving an active matrix type liquid crystal display device including a first electrode, a second electrode, and a liquid crystal layer interposed between the first and the second electrodes, and the liquid crystal layer having a larger polarization when a voltage of a first polarity is applied to the first electrode against the second electrode than that when a voltage of a second polarity different from the first polarity is applied to the first electrode against the second electrode, the method comprising: dividing a frame into a first field and a second field; applying a first voltage of the first polarity to the first electrode during the first field; generating a second voltage from the first voltage by changing its polarity, wherein a magnitude of the second voltage is modified by an amount of ΔV (ΔV>0) based on a magnitude of the first voltage in a direction of the first polarity when the first voltage is not zero and the amount of ΔV changes with the magnitude of the first voltage; and applying the second voltage to the first electrode during the second field.