Patent ID: 7315297

Claim:
An electro-optical apparatus, comprising: in an image-display area on a device substrate, a plurality of data lines extending in a direction; a plurality of scanning lines extending in a direction intersecting the data lines; and in a surrounding area located on surroundings of the image-display area, a first drive circuit that drives wiring lines either of the scanning lines or the data lines based on a first clock signal and a second clock signal having a phase inverted from the first clock signal; a second drive circuit that is disposed by being opposed to the first drive circuit across the image-display area, at the same time, is electrically coupled to the other ends of the wiring lines, and that drives the wiring lines based on the first and second clock signals; first and second terminals to which the first and second clock signals are respectively supplied from an external circuit; a phase-difference correction circuit that is provided between the first and second terminals and the first drive circuit and that corrects a phase difference between the first and second clock signals; a first signal line which electrically couples the first terminal to the phase-difference correction circuit without branching, also electrically couples the phase-difference correction circuit to the first drive circuit without branching, supplies the first clock signal from the first terminal to the first drive circuit through the phase-difference correction circuit, at the same time, electrically couples the first drive circuit to the second drive circuit without branching, and supplies the first clock signal from the first drive circuit to the second drive circuit; and a second signal line which electrically couples the second terminal to the phase-difference correction circuit without branching, also electrically couples the phase-difference correction circuit to the first drive circuit without branching, supplies the second clock signal from the second terminal to the first drive circuit through the phase-difference correction circuit, at the same time, electrically couples the first drive circuit to the second drive circuit without branching, and supplies the second clock signal from the first drive circuit to the second drive circuit.