A display device includes first and second unit pixels adjacent to each other in a first direction, and each including first to third pixels, a first voltage line on a first side of each of the first and second unit pixels, and extended in a second direction crossing the first direction, a data line on a second side of each of the first and second unit pixels, and extended in the second direction, first gate lines between the first side of the first unit pixel and the second side of the second unit pixel to not be on the second side of the first unit pixel and to not be on the first side of the second unit pixel, and extended in the second direction, and a second gate line connected to at least one of the first gate lines, and extended in the first direction.