Patent ID: 7416926

Claim:
A method of fabricating a liquid crystal display device, comprising: a first mask process of forming a gate line on a substrate and a gate electrode connected to the gate line; a second mask process of forming a source/drain metal pattern including a data line crossing the gate line to define a pixel area, a source electrode connected to the data line, a drain electrode facing the source electrode, a semiconductor pattern that overlaps along and under the source/drain metal pattern to form a channel between the source electrode and the drain electrode, and a gate insulating pattern that overlaps along and under the semiconductor pattern; and a third mask process of forming a pixel electrode in the pixel area connected to the drain electrode and spaced apart from the gate line and the data line, and forming a passivation film that forms a border with the pixel electrode, wherein the third mask process includes: forming a transparent conductive film on the source/drain metal pattern; forming a photo-resist pattern on the transparent conductive film; forming a transparent conductive pattern including the pixel electrode, the pad upper electrode, and the contact electrode by an etching process using the photo-resist pattern as a mask; forming a passivation film which completely covers the photo-resist pattern; and patterning the passivation film by removing the photo-resist pattern where the passivation film is formed.