A driving device that outputs signals of different polarities from plural output terminals includes: a first power source wire that connects power terminals of some of plural first output circuits each outputting a signal of one polarity and power terminals of some of plural second output circuits each outputting a signal of the other polarity; and a second power source wire that connects power terminals of the rest of the plural first output circuits and power terminals of the rest of the plural second output circuits, the second power source wire being different from the first power source wire.