An object of the present invention is to provide a display device capable of narrowing the area of the frame. In order to achieve this object, the display device according to the present invention has a substrate (100) having a plurality of arranged display elements (120) and a wiring layer (107) of a power source on the peripheral side; a bank layer (113) for mutually separating the display elements; an electrode layer (123) for covering the plurality of display elements and the bank layer; and a sealing substrate (200) for further covering the electrode layer by joining the peripheral portion of the substrate and the sealing portion (202) circling around the periphery via a joining element (301) such as an adhesive; wherein the periphery of the sealing substrate is positioned inside the periphery of the substrate, and the peripheral portion of the electrode layer is connected to the wiring (107) of the power source within the sealing portion (b+c). Thereby, the connection area (c) of the electrode (123) and the wiring (107) can be utilized as the joining area (b+c) of the substrate and the sealing substrate, and, while securing the joining width necessary for gas barrier and the like, portions that are structural elements of the frame of the display device are reduced.