Patent ID: 8049854

Claim:
A method for fabricating a liquid crystal display device, comprising: forming a first transparent metal layer on a substrate; forming a data metal layer on the first transparent metal layer; forming a preliminary photoresist pattern having a height difference on the data metal layer; etching the first transparent metal layer and the data metal layer using the preliminary photoresist pattern as a mask to form a data line, a source electrode connected to the data line, and a drain electrode spaced apart from the source electrode; ashing the preliminary photoresist pattern to form a photoresist pattern exposing a portion of the data metal layer; etching the data metal layer using the photoresist pattern as a mask to form a pixel electrode connected to the first transparent metal layer; forming a semiconductor pattern covering the source electrode and the drain electrode; forming a gate insulating layer over the substrate; and forming a gate line crossing the data line, and a gate electrode connected to the gate line and disposed opposite to the semiconductor pattern.