A display device includes: a first substrate; a second substrate disposed on the first substrate and including a plurality of voids; at least one inorganic layer disposed on the second substrate; at least one transistor disposed on the at least one inorganic layer; and a light-emitter disposed on the at least one transistor. The second substrate is in contact with the at least one inorganic layer and has a dielectric constant less than a dielectric constant of the at least one inorganic layer.