An integrated circuit device includes: a RAM block including a plurality of wordlines, a plurality of bitlines, a plurality of memory cells, and a wordline control circuit; and a data line driver block which drives a plurality of data line groups of a display panel based on data supplied from the RAM block. The data line driver block includes first to Nth (N is an integer larger than one) divided data line driver blocks, each of the first to Nth divided data line driver blocks driving a different data line group of the data line groups. The wordline control circuit drives an identical wordline N times from among the wordlines in one horizontal scan period of the display panel. The first to Nth divided data line drivers are disposed along a first direction in which the bitlines extend.