Array substrate and display device

The utility model is applicable to the technical field of display equipment, and provides an array substrate and a display device.The array substrate comprises a substrate, a thin film transistor, a pixel electrode layer and a common electrode wire, the thin film transistor, the pixel electrode layer and the common electrode wire are arranged on the substrate, and the substrate is further provided with a storage capacitor area, a first storage capacitor and a second storage capacitor, the first storage capacitor comprises a lower electrode part, a first insulating layer and a middle electrode part; the second storage capacitor comprises a lower electrode part, a first insulating layer, a second insulating layer and an upper electrode part, and the upper electrode part is electrically connected with the middle electrode part; the projections of the lower electrode part, the middle electrode part and the upper electrode part on the substrate are at least partially overlapped; the display device includes an arra