An electric display device of the type wherein a liquid is disposed in a space defined by a substrate, a spacer disposed on the substrate, and a sealing film disposed on an upper end portion of the spacer is produced through a process including a step of disposing a sealing film precursor, comprising a polymerizable compound, supported by a supporting member on both an exposed surface of the liquid and the upper end portion and at least a part of the side portion of the spacer in a state that the liquid is filled between adjacent spacers, and a step of polymerizing the polymerizable compound to form the sealing film.