A thin display device, a lightweight display device, or a bendable display device is provided. The display device can be fabricated by a method including a first step of forming a first electrode and a second electrode over a substrate such that they are apart from each other; a second step of sequentially forming a light-blocking layer over a support substrate, a resin layer covering the light-blocking layer, and a first coloring layer and a second coloring layer over the resin layer; a third step of bonding the substrate and the support substrate to each other with a liquid crystal layer containing liquid crystal, monomers, and a polymerization initiator positioned therebetween; a fourth step of performing light irradiation from the support substrate side so that the monomers in the liquid crystal layer are polymerized in a region not shielded by the light-blocking layer; and a fifth step of performing separation between the resin layer and each of the support substrate and the light-blocking layer to remove the support substrate and the light-blocking layer.