Abstract: An array substrate and a display device. The array substrate comprises a common electrode line a plurality of gate lines and a plurality of data lines which intersect with each other and pixel units defined by neighboring in data lines. A storage electrode line is provided, so that storage capacitance between the storage electrode line and the pixel electrode can compensate storage capacitance formed between the common electrode and the pixel electrode. The ability of charge retention of the pixel electrode can be increased, so that voltage of the pixel electrode is constant during display period of a frame, and the display effect of a picture is ensured.