A display device includes a display panel, and a protective member disposed outside the display panel. The circuit layer includes a display area and a non-display area, and a first bending line and a second bending line crossing the first bending line are defined are defined in the non-display area. The non-display area includes: a first non-display area bent from the display area with respect to the first bending line; a second non-display area bent from the display area with respect to the second bending line; and a corner non-display area bent from the second non-display area with respect to the first bending line and bent from the first non-display area with respect to the second bending line. A slit is defined in the protective member, and the slit overlap at least a part of the first bending line and the second bending line.