Patent ID: 7656500

Claim:
A method of fabricating a liquid crystal display device, comprising: a first mask process of forming a first mask pattern group including a gate line, a gate electrode connected to the gate line, a common line substantially parallel to the gate line, a common electrode connected to the common line on a first substrate; a second mask process of forming a gate insulating film on the first mask pattern group and forming a semiconductor pattern on the gate insulating film; and a third mask process of forming a third mask pattern group including a data line crossing the gate line and the common line, a source electrode connected to the data line, a drain electrode opposite the source electrode and a pixel electrode connected to the drain electrode from a first conductive layer group having at least double conductive layers on the gate insulating film, wherein the third mask pattern group is formed in an area to be sealed by a sealant upon joining the first substrate and a second substrate; wherein the first mask process includes forming a lower pad electrode to be connected to at least one of the gate line, the data line and the common line, the second mask process includes forming a contact hole passing through the gate insulating film to expose the lower pad electrode, and the third mask process includes forming an upper pad electrode to be connected, via the contact hole, to the lower pad electrode from at least one conductive layer of the first conductive layer group.