A liquid crystal display includes: a first substrate; a gate conductor disposed on the first substrate; a gate insulating layer disposed on the gate conductor; a semiconductor layer disposed on the gate insulating layer; data line and drain electrodes disposed on the semiconductor layer, the data line including a source electrode; and a first passivation layer disposed on the data line and the drain electrode, the first passivation layer including a first contact hole. The first contact hole has a substantially circular planar shape, and wherein a first region of the drain electrode corresponding to the first contact hole has a substantially circular planar shape.