Structure of a liquid crystal display device and a method of man

Details Structure of a liquid crystal display device and a method of man Structure of a liquid crystal display device and a method of man

1996-02-13

1998-10-20

Gross, Anita Pellman

Liquid crystal cells, elements and systems

Particular excitation of liquid crystal

Electrical excitation of liquid crystal

349 43, 349147, 257771, G02F 1136, G02F 11343, H01L 29786

Patent

active

058254374

ABSTRACT:
A liquid crystal display device comprising a substrate; a first metal layer including an aluminum alloy having a first refractory metal with a first melting temperature over the substrate; and a second metal layer including a pure aluminum or an aluminum alloy having a second refractory metal with a second melting temperature lower than the first melting temperature over the first metal layer. The above liquid crystal display device of the present invention prevents the occurrence of hillocks on the aluminum gate metal. A method of manufacturing a liquid crystal display device is disclosed including the steps of forming a first metal layer of an aluminum alloy including a refractory metal having a first melting temperature on a substrate; and forming a second metal layer of a pure aluminum or an aluminum alloy including a refractory metal having a second melting temperature lower than the first melting temperature on the first metal layer.

REFERENCES:
patent: 4556897 (1985-12-01), Yorikane et al.
patent: 5349205 (1994-09-01), Kobayashi et al.
patent: 5367179 (1994-11-01), Mori et al.
patent: 5627345 (1997-05-01), Yamamoto et al.
Patent Abstracts of Japan, Kokai No. 7-294963, Nov. 10, 1995.

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