An electro-optical device includes an electro-optical panel, and an interface board through which an image display signal is supplied to the electro-optical panel. The interface board includes a flexible film board, a plurality of terminals that are disposed on the film board, a plurality of wiring lines that are disposed on one surface of the film board and that are electrically connected to the terminals, respectively, and a first conductive member that is formed on the other surface of the film board and that is grounded. The first conductive member overlaps at least one of the wiring lines when the film board is seen in plan view, and the first conductive member is formed along the one wiring line.