An array substrate and a display device including the array substrate are provided. The array substrate includes: an upper electrode layer on a base substrate and including a first upper electrode strip and a second upper electrode strip; a lower electrode layer between the base substrate and the upper electrode layer. The lower electrode layer includes a portion that does not overlap the first upper electrode strip and the second upper electrode strip in a direction perpendicular to an upper surface of the base substrate. The array substrate includes a pixel electrode strip and a common electrode strip which are in a same layer and both correspond to a region between the first upper electrode strip and the second upper electrode strip.