Method for fabrication liquid crystal display device and diffraction mask therefor

A method for fabricating an LCD, the method comprising:

• forming an active pattern on a substrate;
• forming a first insulation film on the substrate having the active pattern;
• forming a gate electrode on the first insulation film,
• wherein the gate electrode includes a first gate electrode protruding from the gate line and a second gate electrode formed as a portion of the gate line overlapping the active pattern;
• forming a passivation film and a transparent conductive film on the gate electrode;
• simultaneously forming contact holes and a transmission electrode using a single masking process, the contact holes exposing sides of the active pattern;
• forming an opaque conductive film in the contact holes and on the transmission electrode and patterning the opaque conductive film to form a source electrode connected to a first side of the active pattern and a drain electrode connected to a second side of the active pattern and to the transmission electrode;
• forming an organic film on the substrate and patterning the organic film to make a surface of the organic film concavo-convex;
• patterning the concavo-convex organic film to form a contact hole exposing a portion of the drain electrode;
• and
• forming an opaque metal film on the organic film and patterning the opaque metal film on the organic film to form a reflection electrode connected to the drain electrode and the transmission electrode.