A display device includes a substrate, a first barrier layer on the substrate, a lower pattern on the first barrier layer and having a mesh shape defining a disconnection area, a second barrier layer on the first barrier layer, covering the lower pattern, and contacting the first barrier layer in the disconnection area, and a first active pattern on the second barrier layer and overlapping the lower pattern, a gate electrode on the first active pattern and overlapping the lower pattern, a first gate line on the first active pattern extending in a first direction, a second active pattern on the first gate line, a second gate line on the second active pattern extending in the first direction, and a data line on the second gate line extending in a second direction crossing the first direction.