The invention provides an electro-optical apparatus that can include a clock-signal terminal and a phase-difference correction circuit that are connected without branching, and the phase-difference correction circuit and one of scanning-line drive circuits are connected without branching. A clock signal can be supplied to the one of the scanning-line drive circuits through the phase-difference correction circuit. Then the one of the scanning-line drive circuits and the other of the scanning-line drive circuits are connected without branching, and a clock-signal line which supplies the clock signal from the one of the scanning-line drive circuits to the other of the scanning-line drive circuits can be provided.