A liquid crystal display (LCD) capable of easily implementing a repairing process is provided under a circumstance where a width of a sustain electrode line is reduced or even no sustain electrode line is provided for the purpose of ensuring an increased aperture ratio, and a method for repairing the liquid crystal display is provided. The LCD includes a gate line, extending in a first direction, and a data wiring being insulated from the gate line. The data wiring includes a source electrode, a drain electrode, and a data line extending in a second direction. A pixel electrode is connected to the drain electrode via a contact hole, and a sustain electrode line is formed in a substantially the same plane as the gate line and has a sustain electrode overlapped by the contact hole.