Liquid crystal display device and fabrication method thereof

A method for fabricating a liquid crystal display device, comprising:

• providing first and second substrates;
• forming an active layer having a source region, a drain region and a channel region on the first substrate;
• forming a first insulation layer on the first substrate;
• forming first and second conductive layers on the first substrate;
• forming a gate electrode, a gate line and a pixel electrode by patterning the first and second conductive layers, the gate electrode and the gate line being formed as a dual layer having the first and second conductive layers and the pixel electrode being formed of the first conductive layer;
• forming a second insulation layer on the first substrate;
• forming a contact hole exposing a portion of the source and drain regions by removing a portion of the first and second insulation layers and removing the second insulation layer of the upper portion of the pixel electrode;
• forming a source and drain electrodes electrically connected to the source and drain regions through the contact hole;
• and
• forming a liquid crystal layer between the first and second substrates.