Method of filling dynamic scattering liquid crystal devices

Details Method of filling dynamic scattering liquid crystal devices Method of filling dynamic scattering liquid crystal devices

1976-11-22

1977-12-27

Aegerter, Richard E.

Fluent material handling, with receiver or receiver coacting mea

Processes

Gas or variation of gaseous condition in receiver

350160LC, 141 92, B65B 3100

Patent

active

040649199

ABSTRACT:
A dynamic scattering liquid crystal cell can be filled from a single fill port by evacuating the cell, filling with a solution of an ionic dopant in a volatile solvent, evaporating the solvent and refilling under vacuum with the dynamic scattering liquid crystal composition. Ion hang-up is avoided and only a single volume of the liquid crystal composition is required to fill the cell.

REFERENCES:
patent: 3698449 (1972-10-01), Sorkin et al.
patent: 3938242 (1976-02-01), Sussman

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