This display device includes a heat radiation member made of metal, configured to radiate heat generated from a light source portion, a rear housing arranged on the rear side of the heat radiation member, a substrate mounting member made of sheet metal, mounted with a circuit substrate, and a cover member covering the substrate mounting member from the rear side of the substrate mounting member in a state where the rear surface of the rear housing is exposed to the outside, while the heat radiation member is arranged to come into contact with the substrate mounting member.