Liquid crystal cell which can have a homeotropic structure with

Details Liquid crystal cell which can have a homeotropic structure with Liquid crystal cell which can have a homeotropic structure with

1985-05-16

1987-10-20

Corbin, John K.

350335, 350347E, 350339R, G02F 113

Patent

active

047010282

ABSTRACT:
Liquid crystal cell having a homeotropic structure, with compensated birefringence for said structure.
The cell comprises a liquid crystal layer which can have a hometropic structure and electrodes located on either side of the layer and whereof at least one is transparent. It also comprises means for compensating the birefringence of the liquid crystal layer in its homeotropic structure, so that the cell has a high contrast for said structure, in the case of an oblique observation made in a given observation plane.
Application to the construction of data display means.

REFERENCES:
patent: 3694053 (1972-09-01), Kahn
patent: 3784280 (1974-01-01), Bigelow
patent: 3960438 (1976-06-01), Bonne et al.
patent: 4385806 (1983-05-01), Fergason
patent: 4436379 (1984-03-01), Funada et al.
patent: 4443065 (1984-04-01), Funada et al.
patent: 4639090 (1987-01-01), Clerc et al.

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