Liquid crystal display with twist angle less than 80 degrees

Details Liquid crystal display with twist angle less than 80 degrees Liquid crystal display with twist angle less than 80 degrees

1984-06-29

1986-09-02

Corbin, John K.

350337, G02F 113

Patent

active

046092552

ABSTRACT:
A liquid crystal display wherein in order to obtain an improved contrast without diminishing the brightness of the display, the angle of twist is reduced in the case of a liquid crystal display according to the rotating cell principle, polarizers with greater extinction power are used and up to 3% by weight of a suitable dye is added. Thus, a largely achromatic display is also obtained.

REFERENCES:
patent: 3787110 (1974-01-01), Berreman et al.
patent: 3914022 (1975-10-01), Kashnow
patent: 3977767 (1976-08-01), Okuma et al.
patent: 4039252 (1977-08-01), Mizuno et al.
patent: 4398803 (1983-08-01), Pohl et al.
patent: 4427741 (1984-01-01), Aizawa et al.
patent: 4552436 (1985-11-01), Kozaki et al.

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