A method of driving a display device, which includes a plurality of segments, each including a plurality of pixels, includes comparing grayscales of first image data of a first frame with respect to a segment among the plurality of segments and grayscales of a second image data of a second frame after the first frame with respect to the segment, modulating the second image data to generate first modulated data when the grayscales of the first image data are equal to the grayscales of the second image data, and providing data voltages to the segment based on the first modulated data.