A display device includes a display panel including a folding area folded about a folding axis extending in a first direction, a first non-folding area, and a second non-folding area spaced apart from the first non-folding area with the folding area interposed therebetween in a second direction crossing the first direction, a cover member disposed on the display panel, a support member disposed between the display panel and the cover member, a heat dissipation member which is disposed between the support member and the cover member and through which a first opening and a second opening are defined, a first adhesive member disposed in the first opening, and a second adhesive member disposed in the second opening. The first adhesive member overlaps the first non-folding area, and the second adhesive member overlaps the second non-folding area.