Wristwatch having a liquid crystal display

Details Wristwatch having a liquid crystal display Wristwatch having a liquid crystal display

1976-03-08

1978-08-01

Padgett, Benjamin R.

Compositions

Radioactive compositions

Nuclear reactor fuel

58 50R, 58 23BA, 58 23TF, 252299, 350350, C09K 334, G02F 113, G04C 300

Patent

active

041034821

ABSTRACT:
An ultra-thin wristwatch utilizes a liquid crystal display cell operable by a single electrochemical cell without the use of a voltage booster. Through the use of an extremely small piezoelectric tuning fork vibrator and electronic circuitry consisting of a C-MOS, it becomes possible to manufacture a movement having a thickness less than 5 mm.

REFERENCES:
patent: 3683213 (1972-08-01), Staudte
patent: 3697766 (1972-10-01), Ganter et al.
patent: 3697789 (1972-10-01), Kato et al.
patent: 3864905 (1975-02-01), Richardson
patent: 3919105 (1975-11-01), Katagiri et al.
patent: 3943699 (1976-03-01), Daniels
patent: 3946550 (1976-03-01), Fujita
patent: 3949546 (1976-04-01), Saito
patent: 3954653 (1976-05-01), Yamazaki
patent: 3959964 (1976-06-01), Yamazaki
patent: 3975286 (1976-08-01), Oh
patent: 3981817 (1976-09-01), Boller et al.
patent: 3984344 (1976-10-01), Cole, Jr.
patent: 4009938 (1977-03-01), Yamazaki et al.
patent: 4011173 (1977-03-01), Steinstrasser

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