Two-layer guest-host liquid crystal display device

Details Two-layer guest-host liquid crystal display device Two-layer guest-host liquid crystal display device

1981-11-25

1984-07-17

Corbin, John K.

350349, G02F 113

Patent

active

044602480

ABSTRACT:
A two-layer guest-host liquid crystal display device is provided, each layer having a guest-host liquid crystal layer sandwiched between a pair of substrates and being provided with an electrode for applying an electric field to said liquid crystal layer, which comprises a first display layer comprising a P-type pleochroic dye material and a first liquid crystal material and a second display layer comprising an N-type pleochroic dye material and a second liquid crystal material.

REFERENCES:
patent: 3703329 (1972-11-01), Castellano
patent: 3833287 (1974-09-01), Taylor et al.
patent: 3960751 (1976-06-01), Moriyama et al.
patent: 3967881 (1976-07-01), Moriyama et al.
patent: 4241339 (1980-12-01), Ushiyama
patent: 4324455 (1982-04-01), Imahori et al.

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