The invention provides an array substrate, a display panel and a display device, belongs to the field of display technology, and can solve the problem of breakage of metal connecting wirings when the array substrate is bent. The array substrate comprises a plurality of gate lines and a plurality of data lines, wherein at least a part of the gate lines and/or at least a part of the data lines are curved. The display panel in the invention comprises the array substrate, and the display device in the invention comprises the display panel. The invention may be applied to manufacture of a flexible display panel.