Electrophoretic projection display systems

Details Electrophoretic projection display systems Electrophoretic projection display systems

1979-08-02

1982-04-13

Sikes, William L.

Coherent light generators

Particular component circuitry

Optical pumping

350361, 372 24, G02F 101

Patent

active

043244564

ABSTRACT:
Projection display devices and/or remote blackboard systems are provided with electrophoretic type cells used to control the projected light source. Light is directed toward the EPID cell through a total internal reflecting type prism, and reflected light from a totally internal reflecting surface at the interface of the cell and prism is projected to a viewing device. By writing information into the EPID type cell, total internal reflection can be frustrated and an image is formed at the viewing device. Information may be written into the EPID type device by a scaning laser, or by an electrostatic writing instrument.

REFERENCES:
patent: 3668106 (1972-06-01), Ota
patent: 3684683 (1972-08-01), Ota
patent: 3835346 (1974-09-01), Mast et al.

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