Liquid crystal display device and method for manufacturing the same and method for repairing the same

PURPOSE: A liquid crystal display, a manufacturing method thereof and repairing method thereof are provided not to generate a fault of a total pixel area. CONSTITUTION: An LCD includes as follows. A common line(102b) is formed on the same layer of a gate line(102c), a gate electrode, and gate line on a substrate. A gate insulating layer is formed on a substrate front surface including the gate line. A data line(108c) is formed to correspond to upper part of the common line and defines a pixel area by being crossed with the gate line.