Working fluids for electrophoretic image display devices

Details Working fluids for electrophoretic image display devices Working fluids for electrophoretic image display devices

1975-02-05

1978-06-06

Prescott, Arthur C.

Chemistry: electrical and wave energy

Apparatus

Coating, forming or etching by sputtering

204299R, 96 1A, C25D 112, B03C 500

Patent

active

040935345

ABSTRACT:
The invention provides a working fluid for an electrophoretic image display device including a dispersion of a species of finely divided particles of an opaque dielectric material suspended in a suspension medium, each of the said particles which are transportable within the suspension medium under the influence of an electric field, has a chemical compound adsorbed on the surface thereof, the chemical compound is such that the molecules thereof exert an attractive force towards each other in the absence of the electric field.

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patent: 3874896 (1975-04-01), Machida et al.
patent: 3900412 (1975-08-01), Kosel
patent: 3984298 (1976-10-01), Haber

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