Method of manufacturing plastic particles for a particle display

Details Method of manufacturing plastic particles for a particle display Method of manufacturing plastic particles for a particle display

1987-05-26

1989-03-07

Lesmes, George F.

Plastic and nonmetallic article shaping or treating: processes

Spheroidizing or rounding of solid particles

264143, 428402, 428900, B22D 1101

Patent

active

048104310

ABSTRACT:
A particle display comprises a plurality of particles which in an electrical field rotate to expose either their white or black surface depending upon the polarity of the field. The particle display can be used for a flat panel ambient-illuminated numeric, alpha-numeric and other forms of visual displays.

REFERENCES:
patent: 3505434 (1970-04-01), Battaerd
patent: 3892834 (1975-07-01), Pritchard
patent: 3920783 (1975-06-01), Hara et al.
patent: 3982334 (1976-09-01), Tate
patent: 4226909 (1980-10-01), Kanten
patent: 4251201 (1981-02-01), Krysiak

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