Liquid crystal display device and manufacturing method of the same

A manufacturing method of a liquid crystal display device comprising:

• forming a gate line and a gate electrode branching from the gate line on the substrate;
• forming a gate insulating layer covering the gate line and the gate electrode;
• forming a semiconductor layer within an area of the gate electrode on the gate insulating layer;
• forming a data line crossing the gate line a source electrode branching from the data line and contacting one side of the semiconductor layer, and a drain electrode facing with the source electrode and contacting the other side of the semiconductor layer to complete a thin film transistor;
• depositing a passivation layer on the thin film transistor;
• forming a gate contact hole exposing some portions of the gate electrode by penetrating the passivation layer and the gate insulating layer;
• and
• forming an opaque protective layer covering the thin film transistor on the passivation layer and contacting the gate electrode through the gate contact hole.