An array substrate of display panel includes a plurality of gate lines, common lines, data lines and repairing segments. The data line includes a first data line, and the common line includes a first common line. The first common line penetrates through first, second and third pixel areas, and the first data line has a broken line defect on a side of the first pixel area. The first common line has a first cutting part in the second pixel area and a second cutting part in the third pixel area, and the first common line between the first and second cutting parts forms a floating common repairing segment. In the second pixel area, the first data line is electrically connected to the common repairing segment through the repairing segment. In the third pixel area, the first data line is electrically connected to the common repairing line through the repairing segment.