A display device includes a protective layer. A display panel is disposed on an upper surface of the protective layer. The display panel includes a display area configured to display an image and a non-display area at least partially surrounding the display area. A cover panel is disposed on a back surface of the protective layer. The cover panel includes an opening that exposes the protective layer. A fingerprint sensor is disposed within the opening of the cover panel. The fingerprint sensor is configured to sense a fingerprint. A first fixing member is disposed on one surface of the fingerprint sensor. A second fixing member at least partially overlaps at least one side of the first fixing member, the second fixing member fixing the fingerprint sensor. The first fixing member and the second fixing member each include at least one different material from each other.