Liquid crystal optical valve controlled by photoconducting effec

Details Liquid crystal optical valve controlled by photoconducting effec Liquid crystal optical valve controlled by photoconducting effec

1982-04-09

1984-11-20

Corbin, John K.

350320, G02F 113

Patent

active

044835922

ABSTRACT:
A display device is provided using a liquid crystal layer associated with a photoconducting plate, in which the voltage applied to the valve is an AC voltage chosen so as to transfer to the liquid crystal a maximum signal, and that applies more especially to radioscopy and to the projection of coherent (laser reading) or incoherent images.

REFERENCES:
patent: 3592527 (1971-07-01), Conners et al.
patent: 3732429 (1973-05-01), Braunstein et al.
patent: 3824002 (1974-07-01), Beard
patent: 3960439 (1976-06-01), Becker et al.
patent: 4037932 (1977-07-01), Haas et al.
patent: 4368386 (1983-01-01), Huignard et al.
Haas, W. E. L. et al., "Ultralow-Voltage Image Intensifiers," Applied Physics Lett., vol. 29, No. 10, (Nov. 1976), pp. 631-632.

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