An electrical device includes a first substrate and a second substrate which are disposed in an opposing manner so as to interpose a functional element, a first electrode (rear surface electrode) which is provided more to the first substrate side than the functional element, a second electrode which is provided on the second substrate and is electrically connected to the first electrode, and a functional element and an electronic component which drives the functional element in a region which is a region where the first substrate and the second substrate overlap and which is interposed between the first electrode and the second electrode.