A display device may include a window, an input sensing panel, first to third connection circuit boards, an optical sheet, a display panel, a stress control film, and a first adhesive member configured to couple the optical sheet and the input sensing panel. On a plane, the first adhesive member may include an inner portion overlapping the optical sheet and an outer portion extending from the inner portion to the outside and non-overlapping the optical sheet while overlapping the stress control film. A first portion of an edge of the first adhesive member defines a recessed area that is recessed toward a center area of the inner portion so that a partial area of the optical sheet is exposed.