Colored ball display system

Details Colored ball display system Colored ball display system

1999-02-05

2000-06-06

Ben, Loha

Optical: systems and elements

Optical modulator

Light wave temporal modulation

359295, 345 85, 345107, 623 16, G02B 2600

Patent

active

060726210

ABSTRACT:
In a display device of the type wherein a display state is selected by rotation of polarized colored balls, the colored balls are formed from a paraelectric material, and the charged state of each colored ball is provided by an electret-forming treatment due to charge-injection to a minute colored ball per se of a paraelectric material or a film of a paraelectric material coating a minute ball. As a result, a colored ball having an increased charge can be produced stably from an inexpensive material.

REFERENCES:
patent: 4126854 (1978-11-01), Sheridon
patent: 4143103 (1979-03-01), Sheridon
patent: 5389945 (1995-02-01), Sheridon
patent: 5759205 (1998-06-01), Valentini
patent: 5940054 (1999-08-01), Harris
patent: 5986629 (1999-11-01), Smith et al.
N.K. Sheridon, et al., "The Gyricon-A Twisting Ball Display", Proceeding of S.I.D., vol. 18/3 & 4, pp. 289-293 (1977).
M. Saitoh, et al., "A Newly Developed Electrical Twisting Ball Display", Proceedings of the S.I.D., vol. 23/4, pp. 249-253 (1982).

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