Patent ID: 7989274
Filing Date: 2011-08-02
Classification: G02F,H01L

Abstract:
1. A method for fabricating a display device, the method comprising: providing first and second substrates including a pixel area, a gate pad area, and a data pad area; forming a gate electrode at the pixel area of the first substrate and a gate pad at the gate pad area of the first substrate; depositing a nitride-based gate insulating material and an oxide semiconductor material on the entire surface of the first substrate; etching the oxide semiconductor material at the pixel area to form an oxide semiconductor layer over the gate electrode, etching the oxide semiconductor material and an the gate insulating material at the gate pad area to expose a gate pad, and etching the oxide semiconductor material at the data pad area; forming source and drain electrodes on the oxide semiconductor layer of the pixel area, forming a metal layer on exposed gate pad of the gate pad area and on the gate insulating layer, and forming a data pad at the data pad area; forming a passivation layer on the entire surface of the first substrate and etching the passivation layer to form contact holes at the passivation layer on the drain electrode, the metal layer and the data pad; forming and etching a transparent conductive layer to form a pixel electrode connected with the drain electrode at the pixel area and forming a transparent conductive layer on the metal layer and the data pad of the data pad area; and attaching the first and second substrates with a liquid crystal layer interposed therebetween.