A display device, includes: a resin substrate layer; a thin-film transistor layer; a light-emitting-element layer provided on the thin-film transistor layer and including a plurality of first electrodes, a plurality of light-emitting functional layers, and a second electrode stacked on top of another in a stated order; a frame region; a terminal unit; a folding portion; a slit; a filling resin film; a plurality of routed wires; and a reinforcing resin film, wherein the reinforcing resin film is provided with a first dam wall toward the display region, the first dam wall being in contact with the reinforcing resin film and extending in the direction in which the folding portion extends, and the reinforcing resin film is provided with a second dam wall toward the terminal unit, the second dam wall being in contact with the reinforcing resin film and extending in the direction in which the folding portion extends.