A liquid crystal display having a TFT cell array including a plurality of gate lines formed in parallel on a substrate and a plurality of data lines formed perpendicularly to the gate lines. The plurality of gate lines have gate pads at one end, while the plurality of data lines have data pads at either one or both ends. A repair line, which is formed on the periphery of the substrate, intersects the plurality of data lines at both ends, but intersects the plurality of gate lines at only one end.