A display device comprises pixels PX each of which has one of different luminosity characteristics, signal line blocks each including a preset number of signal lines X connected to the pixels PX having a common one of the luminosity characteristics, and a signal line driving circuit which drives the signal lines X according to a video signal. Particularly, the signal line driving circuit includes a selection circuit which sequentially selects the signal line blocks in an effective picture period of the video signal and an external driving unit which drives the preset number of signal lines included in the signal line block selected by the selection circuit.