Electro-optic indicating device

Details Electro-optic indicating device Electro-optic indicating device

1982-09-02

1984-12-18

Corbin, John K.

350338, 179 90L, G02F 113, H04M 126

Patent

active

044887728

ABSTRACT:
A display apparatus including a liquid crystal device is disposed to turn on or off in the presence or absence of a control voltage respectively. Information located under the liquid crystal device and normally occulted, becomes visible when the display turns on.

REFERENCES:
patent: 3727527 (1973-04-01), Borowski et al.
patent: 3835463 (1974-09-01), Tsukamoto et al.
patent: 4145120 (1979-05-01), Kubota
patent: 4262436 (1981-04-01), Clement
patent: 4345396 (1982-08-01), Janssen

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