Display apparatus comprising thin film transistor

A display apparatus comprises a first signal line on a substrate, a second signal line intersecting with the first signal line, a first gate electrode, a first source electrode, a first drain electrode, and a second gate electrode disposed on the same layer as that of the first signal line, a first active layer spaced apart from the first gate electrode and partially overlapped with the first gate electrode, a second active layer spaced apart from the second gate electrode and partially overlapped with the second gate electrode, and a first electrode of a display device connected with the second active layer.