A display device includes a display panel foldable about a folding axis, a window on the display panel, a protective film on the window, and a plurality of adhesive layers between the window and the protective film. The adhesive layers include a first adhesive layer on the window and a second adhesive layer on the first adhesive layer. The first adhesive layer includes a side chain crystalline polymer, and the second adhesive layer has a modulus smaller than a modulus of the first adhesive layer.