Patent ID: 7978164

Claim:
A liquid crystal display device modulating application voltages according to grayscale levels in input image data to produce a grayscale display, said device comprising: a source driving section for converting a grayscale level signal for the input image data to application voltage outputs for output to a display section; a data converting section, provided immediately before the source driving section, for converting the grayscale level signal to a grayscale level signal that is obtainable without using those application voltages which correspond to rising response speeds of the liquid crystal less than or equal to a predetermined value; a switching section for selectively switching on/off a conversion process for the grayscale level signal in the data converting section; and a control section for controlling the switching on/off by the switching section in accordance with an input image data indicator signal, wherein the source driving section, during display of a moving image, assigns application voltages for grayscale levels under control of the control section so that for grayscale levels higher than or equal to a predetermined grayscale level, a different application voltage is assigned for each grayscale level to achieve a full grayscale display and that for the other grayscale levels, fewer grayscale levels are used for the display than those used for the full grayscale display.