Abstract:
A thin film transistor substrate includes a gate metal pattern comprising a gate line extending in a first direction and a gate electrode electrically connected to the gate line, an active pattern overlapping the gate electrode, an etch-stop layer disposed on the active pattern and having a first through hole and a second through hole adjacent to the first through hole, a data metal pattern comprising a data line extending in a second direction crossing the first direction, a source electrode electrically connected to the active pattern through the first through hole and a drain electrode electrically connected to the active pattern through the second through hole and a first passivation layer disposed on the data metal pattern.