A display device includes a window member having a flat portion and a bent portion connected to the flat portion. A display panel is disposed on a rear surface of the window member and includes a central portion and a corner portion protruding from the central portion and overlapping with the flat portion and the bent portion. A first sealing member is disposed on a rear surface of the display panel and overlaps with the corner portion. A second sealing member is disposed on the rear surface of the window member and is spaced apart from the central portion and the corner portion. A first adhesive contacts the first sealing member and the second sealing member and seals a space which is defined between the first sealing member and the second sealing member in the flat portion.