A pixel array is implemented in a display device. The display device includes a plurality of data lines and a plurality of scan lines. The pixel array includes a first sub pixel row, a second sub pixel row, and a third sub pixel row. The first sub pixel row includes a first sub pixel, a second sub pixel, and a third sub pixel. The second sub pixel row includes a fourth sub pixel, a fifth sub pixel, and a sixth sub pixel. The third sub pixel row includes a seventh sub pixel, an eighth sub pixel, and a ninth sub pixel. The seventh sub pixel is electrically coupled to a first data line. The first sub pixel, the fourth sub pixel, and the fifth sub pixel are electrically coupled to a second data line. The second sub pixel, the third sub pixel, and the eighth sub pixel are electrically coupled to a third data line. The sixth sub pixel and the ninth sub pixel are electrically coupled to a fourth data line.