An image display device 1 includes: a liquid crystal panel 11 having a plurality of pixels; and an overdrive execution section 50 configured to determine, with respect to each of target pixels for which overdrive is performed among the plurality of pixels of the liquid crystal panel 11, a gain usage value to be used for the overdrive, based on a predetermined set gain value, and to apply, based on the gain usage value, a liquid-crystal driving voltage to the corresponding target pixel, wherein with respect to a pixel, among the target pixels, for which it is judged that a gradation value in a current frame obtained from the video signal is an intermediate gradation value, the overdrive execution section 50 performs a gain suppressing operation for determining the gain usage value as a value smaller than the set gain value.