Liquid crystal display wrist watch

Details Liquid crystal display wrist watch Liquid crystal display wrist watch

1974-09-24

1978-04-11

Jackmon, Edith S.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific current responsive fault sensor

58 52R, 58 55, 58 59, 73431, 361411, G04C 300, G04B 2900, G04B 3300, B21J 712

Patent

active

040831779

ABSTRACT:
A liquid crystal display wrist watch is disclosed which comprises a supporting frame secured to a wrist watch substrate. The frame has two perpendicularly crossing supporting surfaces which cooperate with two corresponding reference sides of a liquid crystal cell to determine the position of exterior electrodes of the liquid crystal cell and segment electrodes of an electronic circuit. A holding frame plate is used for detachably urging the liquid crystal against the suppporting frame. A boundary plate and color filter are each sandwiched between a movement and a protective glass cover. A portion is provided for determining the position of the holding frame plate, with respect to either to the movement or an outer case.

REFERENCES:
patent: 3689131 (1972-09-01), Klein
patent: 3718842 (1973-02-01), Abbott et al.
patent: 3757510 (1973-07-01), Dill
patent: 3838568 (1974-10-01), Zucher et al.
patent: 3841083 (1974-10-01), Bergey
patent: 3861135 (1975-01-01), Seeger, Jr. et al.
patent: 3863436 (1975-02-01), Schwarzchild et al.
patent: 3910029 (1975-10-01), Yamazaki

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