Patent ID: 7554645
Filing Date: 2009-06-30
Classification: G02F

Abstract:
1. A method of fabricating a liquid crystal display device, comprising: depositing and patterning a first metal layer to form a gate line, a gate electrode, a common line and a gate pad on a substrate; forming a gate insulating layer and an active layer on the substrate having the gate line, the gate electrode, the common line and the gate pad; depositing and patterning a second metal layer to form a source electrode and a drain electrode of a TFT (thin film transistor), a storage electrode of a storage capacitor, a data line and a data pad on the substrate having the gate insulating layer and the active layer; depositing a passivation layer on the substrate having the source electrode and the drain electrode of the TFT, the storage electrode of the storage capacitor, the data line and the data pad; forming and patterning a photo-resist layer to form contact holes within the passivation layer; etching the passivation layer using the patterned photo-resist layer as a mask to form the contact holes; depositing a third metal layer without stripping the patterned photo-resist layer; stripping the patterned photo-resist layer by a lift-off process simultaneously to remove the patterned photo-resist layer and the third metal layer thereon; and depositing and patterning a conductive layer to form a pixel electrode and a contact pad on the substrate having the contact holes, wherein the lift-off process is carried out using a stripper solution having a glycol-based component or a DI (DeIonized water)-based component, when the third metal layer is formed of molybdenum.