Disclosed are an array substrate and a method of fabricating the same. The array substrate includes an active area including a plurality of pixels defined at an intersection area of a gate line and a data line, a gate driving circuit formed at one side of a non-active area and a signal line extending in parallel with the data line in the non-active area to transfer a signal to the gate driving circuit. The signal line includes a first line with a plurality of segmental lines, and at least one additional line formed of a different material and formed at a different layer than the first line. The at least one additional line electrically connects two segmental lines of the first line adjacent to each other.