In a display device using an RGB time division drive system in which RGB data to be supplied to display pixels of three colors RGB are subjected to time-division multiplexing and input to a liquid crystal panel unit, (1) data are input to the liquid crystal panel unit alternately in the order of RGB and BGR every line signal, and a selection signal SC which is in the on-state at a break of one line period is kept in the on-state until the next line period. In addition, (2) over a partial non-display period in partial display, selection signals SA, SB and SC are always in the off-state and an equalize signal EQG is in the on-state.