The display device according to the embodiment includes a substrate; a first assembly wiring and second assembly wiring alternately arranged on the substrate and spaced apart from each other; a first insulating layer disposed between the first assembly wiring and the second assembly wiring and having different first and second thicknesses; a planarization layer disposed on the first assembly wiring and the second assembly wiring and having a first opening; and a light emitting device disposed inside the first opening, wherein a first electrode overlaps the first assembly wiring and the second assembly wiring, wherein the first electrode is configured to be electrically connected to either the first assembly wiring or the second assembly wiring.