A driver IC for a display that includes a first D/A converter with a 1st selection circuit that receives 1st image signals and supplies a selected positive divisional voltage to a 1st operational amplifier, which supplies a positive pixel voltage by amplifying the selected positive divisional voltage; a 2nd D/A converter with a 2nd selection circuit that receives 2nd image signals and supplies a selected negative divisional voltage to a 2nd operational amplifier, which supplies a negative pixel voltage by amplifying the selected negative divisional voltage; and a polarity switching switch with 1st and 2nd switches connecting the 1st and 2nd D/A converters respectively, the polarity switching switch being switched to supply each of output terminals corresponding to the 1st and 2nd image signals alternately with the positive and negative pixel voltages every horizontal scan period by activating/inactivating the 1st and 2nd switches in a complementary manner.