Patent ID: 7763481

Claim:
A method for fabricating a liquid crystal display (LCD) comprising: providing a first substrate having a pixel portion and a pad portion and providing a second substrate; forming a gate line and a gate electrode of a transistor at the pixel portion of the first substrate using a first mask; forming a gate insulation film at an upside of the gate electrode and the gate line, and forming side walls made of an organic film at lateral sides of the gate electrode, the gate line and the gate insulation film using the first mask; forming a first thin film made of an amorphous silicon thin film above the gate line, and forming a second thin film above the first thin film using the first mask; patterning the first thin film to form an active layer of the transistor above the gate line, forming a source electrode of the transistor, a drain electrode of the transistor, and a data line and patterning the second thin film to form an ohmic contact layer between the active layer and each of the source electrode and drain electrode, wherein the gate line and the data line cross each other to define the pixel portion, using a single second mask; forming a pixel electrode electrically connected to the drain electrode at the pixel portion, using a single third mask; wherein a portion of the pixel electrode is in contract with the first substrate; and forming a liquid crystal layer between the first and second substrates.