Array substrate, production method of array substrate and display device

An embodiment of the invention discloses an array substrate, a production method of the array substrate and a display device, and relates to the technical field of display. According to the array substrate, the production method of the array substrate and the display device, the aperture ratio is large, meanwhile, the problems of breakage of data lines or grid lines cannot be caused easily, and the yield of liquid crystal displays is increased. The array substrate comprises a substrate body as well as a first wire and a second wire which are located on the substrate body in a cross manner, wherein the first wire (and/or the second wire) comprises a first part and a second part, and each first part made of a conductive metal oxide is located under each second part made of metal.