A MVA type liquid crystal panel is slow in a response speed when a black state
at a drive voltage about 1V is switched to a low brightness halftone state at the
drive voltage about 2 to 3V. According to the present invention, in a liquid crystal
display device for driving the MVA type liquid crystal panel, when a liquid crystal
pixel at a pixel electrode is changed from a first transmittance to a second transmittance
greater than the first transmittance, a drive voltage greater than a first target
drive voltage in correspondence with a second transmittance is applied to the pixel
electrode in a first frame period of changing to the second transmittance, and
the first target display voltage is applied from a second frame period. According
to the present invention, even when either switching is performed from a black
state to a low brightness halftone state, from the black state to a high brightness
halftone state, or from the black state to a white state, a response time is shortened,
and the switching can be performed without generating an overshoot.