A display device includes a substrate including a first area and a second area, main pixel groups, auxiliary pixel groups, first signal lines, and second signal lines, wherein a distance between adjacent ones of the first signal lines in the second area gradually decreases toward outer regions of the second area from a center of the second area, and a distance between adjacent ones of the second signal lines in the second area gradually decreases toward the outer regions of the second area from the center of the second area.