Field-effect mode liquid crystal display displaying images in co

Details Field-effect mode liquid crystal display displaying images in co Field-effect mode liquid crystal display displaying images in co

1976-05-24

1978-03-21

Bauer, Edward S.

350158, 350337, G02F 113

Patent

active

040800466

ABSTRACT:
In combination with a field-effect mode liquid crystal display which comprises a pair of polarizers and a field-effect mode liquid crystal display cell containing a liquid crystal composition having positive dielectric anisotropy characteristics, a retardation plate is placed between the liquid crystal display cell and one of the polarizers. The retardation plate creates phase differences of discriminative degrees in dependence on the differences of the wave length of the light passing therethrough. The images appear in one color on the complementary color background.

REFERENCES:
patent: 2423371 (1947-07-01), Carranza
Scheffer: "New Multicolor Liquid Crystal Displays That Use a Twisted Nematic Electro-Optical Cell," J. App. Phys., vol. 44, pp. 4799-4803, Nov., 1973.

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