Liquid crystal display device and method for manufacturing...

Details Liquid crystal display device and method for manufacturing... Liquid crystal display device and method for manufacturing...

2005-01-25

2005-01-25

Dudek, James A. (Department: 2871)

Liquid crystal cells, elements and systems

Particular excitation of liquid crystal

Electrical excitation of liquid crystal

Reexamination Certificate

active

06847413

ABSTRACT:
A liquid crystal display device and a method for manufacturing the same are provided. The device and method increase contact stability by forming a contact hole exposing the lateral and upper surfaces of a metal layer using a diffraction mask. The device includes a lower metal layer on a substrate; a passivation layer on the substrate including the lower metal layer; a contact hole on the passivation layer so as to expose the lateral and upper surfaces of the lower metal layer; and an upper metal layer in the contact hole and over the passivation layer, and in contact with the exposed lateral and upper surface of the lower metal layer.

REFERENCES:
patent: 6414730 (2002-07-01), Akamatsu et al.
patent: 6567136 (2003-05-01), Sakuramoto et al.
patent: 11-133450 (2004-05-01), None
patent: 11-249171 (2004-05-01), None

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