Patent ID: 6980268

Claim:
A method for manufacturing a liquid crystal display device, the method comprising the steps of: forming an active pattern on a substrate; forming a gate insulation layer on the substrate having the active pattern; simultaneously forming a gate electrode on the gate insulation layer where the active pattern is formed and a lower electrode of a capacitor on the gate insulation layer adjacent the active pattern; successively forming first and second interlayer dielectric layers on the gate electrode and the gate insulation layer; etching the second interlayer dielectric layer to expose the first interlayer dielectric layer over the lower electrode of the capacitor; etching the first and second interlayer dielectric layers and the gate insulating layer to form contact holes respectively exposing first and second regions of the active pattern; forming first and second electrodes respectively coupled to the first and second regions through the contact holes, wherein the second electrode is formed to be overlapped with the lower electrode of the capacitor; forming a passivation layer on the second interlayer dielectric layer having the first and second electrodes; etching the passivation layer to form a via hole for exposing the second electrode; forming a transparent electrode on the passivation layer, the transparent electrode being electrically connected to the second electrode; successively forming a barrier metal layer and a reflective layer on the transparent electrode; annealing the reflective layer for preventing the reflective layer from being lifted; and patterning the reflective layer and the barrier metal layer to form a barrier metal layer pattern and a reflective electrode.