Electronic timepiece

Details Electronic timepiece Electronic timepiece

1978-02-13

1980-07-15

Miska, Vit W.

Horology: time measuring systems or devices

Chronological

With electro-optical display

368132, G04B 1930, G04B 1906

Patent

active

042121590

ABSTRACT:
Improved timekeeping apparatus, such as a watch or clock with an electro-optic display simulating a conventional mechanical analog timepiece. Electro-optical material, e.g., liquid crystal material, is activated in selected areas to change its appearance to simulate movement of the hands.

REFERENCES:
patent: 3456152 (1969-07-01), Andersen
patent: 3772874 (1973-11-01), Lefkowitz
patent: 3889458 (1975-06-01), Kashio
patent: 3959963 (1976-06-01), Murrell
patent: 3969887 (1976-07-01), Fukumoto
patent: 3987617 (1976-10-01), Slob
patent: 4079369 (1978-03-01), Fukumoto
patent: 4095405 (1978-06-01), Tanaka
patent: 4095413 (1978-06-01), Reich

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