A display device including a flat area extending in a direction and a bending area having a curvature is provided. The display device includes a panel part including a pixel array and including a first active area located in the flat area and a second active area located in the bending area, a protective window covering the panel part, and a high-refractive member on the panel part in the bending area and including a material having a refractivity greater than a refractivity of the protective window.