Display element

Details Display element Display element

2005-03-22

2008-10-14

Schwartz, Jordan M. (Department: 2873)

Optical: systems and elements

Optical modulator

Light wave temporal modulation

C345S084000

Reexamination Certificate

active

07436576

ABSTRACT:
A display element comprising at least two conductive porous layers and a conductive liquid, the conductive porous layers comprising a plurality of connected conductive particles insulated from the conductive liquid by a dielectric and lyophobic covering, and means for separately connecting a voltage across the at least two porous layers and the liquid such that on sequential application of a voltage to each conductive layer the liquid is displaced from one location to another location, the liquid only returning to the original location upon alternate sequential application of a voltage.

REFERENCES:
patent: 4419663 (1983-12-01), Kohashi
patent: 4488785 (1984-12-01), Kohashi
patent: 4569575 (1986-02-01), LePesant et al.
patent: 5956005 (1999-09-01), Sheridon
patent: 6700556 (2004-03-01), Richley et al.
patent: 0 844 714 (1998-12-01), None
patent: 1 400 834 (2004-03-01), None
“Electro-wetting Displays” by G. Beni et al., Applied Physics Letters, American Institute of Physics, New York, vol. 38, No. 4, Feb. 15, 1981 pp. 207-209.
“Electrocapillarity Modulators and Large Screen Projection Displays” by Micahel Lea, Proceedings of the SPIE, SPIE, Bellingham, VA, vol. 684, Aug. 21, 1986 pp. 45-49.

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