Liquid crystal display device and method of fabricating the same

A method of fabricating a liquid crystal display device comprising:

• using a first mask process to form a gate line, a gate pad extending from the gate line and a gate electrode on a substrate, a gate insulating layer on the gate electrode and the gate line, an active layer on the gate insulating layer over the gate electrode, an ohmic contact layer on the active layer, and first source and drain electrodes on the ohmic contact layer;
• using a second mask process to form a passivation layer covering the active layer between the first source and drain electrodes;
• and
• using a third mask process to form a second source and drain electrodes connected to the first source and drain electrodes, respectively, a data line extending from the source electrode and crossing the gate line to define a pixel region, a data pad electrode extending from the data line, and a pixel electrode in the pixel region and extending from the second drain electrode.