A display device includes a display module foldable with respect to a bending axis, an adhesive member which is disposed under the display module, a plurality of support members adhered to the adhesive member, and a crack preventing pattern layer adhered to a portion of the adhesive member, which overlaps the bending axis. The crack preventing pattern layer includes a plurality of crack preventing members spaced from each other. Each of the crack preventing members includes a metal or an inorganic material and is in contact with the adhesive member.