Electrode plate, liquid crystal device and production thereof

Details Electrode plate, liquid crystal device and production thereof Electrode plate, liquid crystal device and production thereof

1997-06-20

2000-08-22

Zimmerman, John J.

Stock material or miscellaneous articles

Liquid crystal optical display having layer of specified...

349139, 349147, 349148, G02F 11343

Patent

active

061069078

ABSTRACT:
An electrode plate is formed by a substrate and a plurality of patterned electrodes formed on the substrate. Each patterned electrode has a laminate structure including a first layer of nickel metal formed on the substrate and a second layer of copper formed thereon. The electrode plate may be prepared by a process including a step of etching such a multilayer metal electrode-forming film formed on a substrate by spraying an etchant downwardly and uniformly onto the substrate while rotating the substrate at a rotation speed sufficient to allow quick liberation of the etchant from the substrate. The metal electrodes can be formed with a good adhesion onto the substrate and with good accuracies of width and thickness. By incorporating the electrode plate as a pair of substrates sandwiching a liquid crystal, a liquid crystal device showing free from transmission delay and rounding of voltage waveforms can be provided.

REFERENCES:
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patent: 4127321 (1978-11-01), Koyama et al.
patent: 4190474 (1980-02-01), Berdan et al.
patent: 4483906 (1984-11-01), Nakatsugawa
patent: 4543573 (1985-09-01), Fuyama et al.
patent: 5448037 (1995-09-01), Takase et al.
patent: 5650834 (1997-07-01), Nakagawa et al.
patent: 5694188 (1997-12-01), Sano et al.
U.S. application No. 08/814,318, Kameyama et al., filed Mar. 1997.
U.S. application No. 08/899,057, Ishikura et al., filed Jul. 1997.

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