According to embodiments of the present invention, there are provided an array substrate, a method for manufacturing the same and a display device, capable of reducing production difficulty of the array substrate. The manufacturing process of the array substrate is simplified, and the production cost is reduced. The array substrate comprises thin film transistor in a top-gate, bottom-contact configuration which is located on a substrate. Regarding the thin film transistor, its gate electrode is connected to a gate line, its source electrode is connected to a data line, and its drain electrode is connected to a pixel electrode.