A display device includes a display module; and a layer disposed on the display module and having a first area and a second area adjacent to the first area, the layer in the first area including a plurality of discontinuities spaced apart from each other. A sum of widths of the plurality of discontinuities is less than about 0.23 times of a width of the first area, each of the widths of the plurality of discontinuities is equal to or less than about 400 μm, and the widths of the plurality of discontinuities and the width of the first area are parallel to a first direction.