Provided is an electro-optical device including: a first conduction layer; and a second conduction layer which is disposed on the upper layer side of the first conduction layer with an insulation film interposed therebetween so that at least a part thereof overlaps with the first conduction layer in the plan view, wherein the insulation film is provided with a void portion formed in an area where the first conduction layer and the second conduction layer overlap with each other in the plan view.