Spatial light modulator using surface state photodiodes

Details Spatial light modulator using surface state photodiodes Spatial light modulator using surface state photodiodes

1988-06-07

1990-03-13

Moskowitz, Nelson

Amplifiers

Parametric amplifiers

Semiconductor type

350342, G02F 113, H01J 3150

Patent

active

049085840

ABSTRACT:
A surface state photodiode is used as the photosensitive element for a Spatial Light Modulator, which includes a liquid crystal layer. The surface of the photodiode which faces the liquid crystal layer has formed thereon surface states, by means of adsorption of foreign molecules to create a depletion layer, thereby effecting a high dark impedance region. Such a Spatial Light Modulator provides for a high resolution image and simplicity in manufacture.

REFERENCES:
patent: 3958207 (1976-05-01), Tutihasi
patent: 4093852 (1978-06-01), Olive et al.
patent: 4114991 (1978-09-01), Bleha et al.
patent: 4127322 (1978-11-01), Jacobson et al.
patent: 4191454 (1980-03-01), Braatz et al.
patent: 4198647 (1980-04-01), Grinberg et al.
patent: 4672014 (1987-06-01), Loives et al.
Howard et al., "Photoconductor-Liquid Crystal Display Cell . . . ", IBM Tech. Disc. Bull., vol. 19, #6, pp. 2266-2267, 11/76.

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