The embodiments of the invention provide an array substrate, a method for manufacturing the same and a display device, relate to the field of display technology, and can reduce the color cast phenomenon of the display device, and improve the display effect. The array substrate comprises a plurality of pixel units which are arranged in an array, each of the pixel units comprises a plurality of sub-pixel units, the width of each of the sub-pixel units is equal, each of the sub-pixel units corresponds to one first electrode, the first electrode comprises a plurality of strip-shaped structures which are arranged at an equal interval, and intervals of the strip-shaped structures of the first electrodes corresponding to different sub-pixel units in each of the pixel units are not completely equal; any of the sub-pixel units meets Q·W+(Q−1)D