Texture transformations in optically negative liquid crystals

Details Texture transformations in optically negative liquid crystals Texture transformations in optically negative liquid crystals

1976-01-22

1977-03-15

Bauer, Edward S.

G02F 113

Patent

active

040121186

ABSTRACT:
A system for transforming an optically negative liquid crystalline composition from the focal-conic texture state to the Grandjean texture state by means of an applied electrical field which may be a D.C. electrical field or a relatively low frequency A.C. electrical field. Imaging and display systems wherein a member comprising a film of an optically negative liquid crystalline composition is imaged in a desired image configuration by the electrical field induced texture transformation system are also described.

REFERENCES:
patent: 3642348 (1972-02-01), Wysocki et al.
patent: 3697150 (1972-10-01), Wysocki et al.

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