A display device including: a flexible substrate having a first surface and a second surface opposite the first surface; a display unit arranged on the first surface of the flexible substrate; and a lower protective film arranged on the second surface and including a base film, an adhesive layer arranged on one side of the base film, a light-shielding layer arranged on the other side of the base film, and a conductive material layer interposed between the base film and the light-shielding layer.