Liquid crystal display device and method for making the same

Details Liquid crystal display device and method for making the same Liquid crystal display device and method for making the same

2011-03-08

2011-03-08

Nelms, David (Department: 2871)

Liquid crystal cells, elements and systems

Particular excitation of liquid crystal

Electrical excitation of liquid crystal

C349S039000, C349S043000

Reexamination Certificate

active

07903184

ABSTRACT:
A method for manufacturing a substrate of a TFT LCD device is disclosed with following steps: providing a transparent substrate having a thin film transistors area and a storing capacitor area; forming an aluminum metal layer and a metal protecting layer on the substrate; patterning a first pattern on the aluminum metal layer of the TFT area, and a second pattern on the metal protecting layer of the storing capacitor area through a halftone mask; forming an aluminum nitride layer on the patterned metal protecting layer; removing the aluminum nitride layer form a rugged surface; forming patterned gates, patterned sources, and patterned drains over the patterned metal protecting layer of the TFT area, and forming a second metal layer over the rugged surface of the aluminum layer on the storing capacitor area, wherein the second metal layer is electrically connected with the drains; and forming patterned pixel electrodes.

REFERENCES:
patent: 2004/0124414 (2004-07-01), Jang et al.
patent: 5216064 (1993-08-01), None
patent: 6067203 (1994-03-01), None
patent: 7013196 (1995-01-01), None
patent: 2004 040075 (2004-02-01), None

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