An array substrate and a display device. The array substrate includes an insulating layer, and a first electrode layer and a second electrode layer respectively arranged on two sides of the insulating layer, with a first electrode group being formed by the first electrode layer and the second electrode layer. The first electrode group includes: a first strip pixel electrode and a second strip pixel electrode, where the first pixel electrode and the second pixel electrode are insulated from each other, disposed in the first electrode layer, and applied with different voltages in an operation process; and a first strip common electrode being disposed in the second electrode layer and including a member disposed between the first pixel electrode and the second pixel electrode in a direction from the first pixel electrode to the second pixel electrode.