Communications: electrical – Systems – Portable self-contained
Patent
1976-05-17
1978-03-14
Hecker, Stuart N.
Communications: electrical
Systems
Portable self-contained
350359, 365127, 365153, G08B 536, G11C 1142
Patent
active
040793680
ABSTRACT:
The practice of this invention provides display of information which utilizes the inherent characteristic of the displacement by an applied electric field intensity distribution of the interface between two fluid dielectric media which are operationally immiscible in each other and have different total dielectric properties at the interface. In particular, the information handling and display in the practice of this invention are with an optical display device in which the two dielectric media are immiscible liquids, e.g., oil and water. The local displacement of the interface therebetween is accomplished by the local application of an electric field which effects movement of the interface by electrohydrodynamic interaction with the dielectric media at the interface. An embodiment of the invention includes an electrode structure for applying an electric field intensity distribution so that the interface can be displaced locally and selectively and preferentially in accordance with a particular information pattern.
REFERENCES:
patent: 3249724 (1966-05-01), Hurvitz
patent: 3648269 (1972-03-01), Rosenweig et al.
patent: 3668106 (1972-06-01), Ota
Hecker Stuart N.
International Business Machines - Corporation
Wiener Bernard N.
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