The invention relates to a
liquid crystal display (LCD) device and a drive method thereof. The drive method comprises: compensating input
voltage of data wires in the current frame by comparing the input voltages of the data wire in the current frame and the former frame, thereby leading the input
voltage of the data wire after being compensated to form overshoot
voltage and to be output into a
liquid crystal panel; controlling the starting / closing of LED backlight, when the overshoot voltage is output to the
liquid crystal panel, the LED backlight is closed; while the overshoot voltage is recovered to the normal voltage, the LED backlight is started. The
liquid crystal display (LCD) device comprises the liquid
crystal panel, a
time schedule controller, an overshooting device, a
data driven device, a grid
actuator and an
inverter; wherein, the
inverter is used for controlling the starting / closing of a plurality of lighting tubes in the LED backlight; when the overshoot voltage is output to the liquid
crystal panel, the LED backlight is closed; while the overshoot voltage is recovered to the normal voltage, the LED backlight is started. The
liquid crystal display (LCD) device and the drive method thereof have the
advantage of rapid driving response, and the overshoot or undershoot can not cause
image quality to be reduced, thereby decreasing the phenomenon of trailing smear and improving the
dynamic display image quality.