Provided is a liquid crystal display device capable of preventing a type of screen burn-in phenomenon caused by fluctuations in DC component of a liquid crystal drive voltage, which occurs when the refresh rate is switched. A control device can perform quadruple speed drive and double speed drive of a liquid crystal panel in an inversion drive method. A common electrode is supplied with a common voltage set in advance based on a midpoint potential in inversion drive of voltages set for a pixel electrode in the quadruple speed drive. In both of the quadruple speed drive and the double speed drive switched from the quadruple speed drive, a width of a scanning pulse (Pk) of a gate voltage (VGk) is set to a width of 1H in the quadruple speed drive.