Double-Schottky diode liquid crystal light valve

Details Double-Schottky diode liquid crystal light valve Double-Schottky diode liquid crystal light valve

1988-05-16

1989-11-14

Miller, Stanley D.

357 15, 350342, G02F 1135, H01L 2948, H01L 2714

Patent

active

048811106

ABSTRACT:
A double Schottky diode light valve (5) includes a liquid crystal (80) for locally modulating a beam (120) by polarization rotation to produce a modulated beam (121), and a photoconductor (40) located adjacent the liquid crystal (80) for receiving and absorbing a second beam (110). The photoconductor (40) controls the polarization responsively to the optical content of the second beam (110). The photoconductor (46) includes a semiconductor substrate and a pair of Schottky diodes (60/40, 30/40) disposed on opposing sides of the substrate. The absorption of the second beam (110) by the substrate (40) produces photogenerated carriers. The pair of Schottky diodes (60/40, 30/40) maintain the substrate (40) substantially depleted of such carriers and also reflects the modulated beam back through the liquid crystal.

REFERENCES:
patent: 2669635 (1954-02-01), Pfann
patent: 3053926 (1962-09-01), Ben-Sira et al.
patent: 3968272 (1976-07-01), Anand
patent: 4005468 (1977-01-01), Tanimura et al.
patent: 4056642 (1977-11-01), Saxena et al.
patent: 4206979 (1980-06-01), Jost
patent: 4228449 (1980-10-01), Braatz
patent: 4239348 (1980-12-01), Grinberg et al.
Fink et al., Editor, Electronics Engineer's Handbook, McGraw-Hill Book Co., pp. 7-40, 7-41, 8-38, 9-66, 1982.
IBM Tech. Disc. Bull., "Light Activated Liquid Crystal Light Valve for Projection Displays", vol. 28, No. 4, Sep. 1985, pp. 1664-1665.
Jost, "A New Light Modulated Liquid Crystal Light Valve", J. Appl. Phys., vol. 49, No. 10, Oct. 1978, pp. 5332-5333.
Efron et al., "A Silicon Photoconductor Based Liquid Crystal Light Valve", p. 142, SID 81 Digest (1981).

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