A display device includes a display substrate including a plurality of pixels and including an active area longer than a display region, and a frame region formed to surround the active area, and a cover glass attached to a display surface side of the display substrate. A frame is provided in a periphery of the cover glass, and the frame covers an outer periphery of the active area. The display region is a region where the active area and a region surrounded by the frame of the cover glass overlap each other.