Projection-type color display apparatus

Details Projection-type color display apparatus Projection-type color display apparatus

1988-10-21

1991-08-06

Cuchlinski, Jr., William A.

Optics: image projectors

Miscellaneous

353 84, G03B 2100

Patent

active

050371967

ABSTRACT:
A projection-type color display apparatus has an optical system which includes a light source. There is at least one projection lens and an optical cell, for example, an LCD, that forms a monochromatic display image. A screen is used onto which an enlarged color display image is projected. Also included is a color filter which has picture elements of two or more colors and the color filter is located separately from the electro-optical cell.

REFERENCES:
patent: 3912386 (1975-10-01), Gorog et al.
patent: 3918803 (1975-11-01), Friesem
patent: 4222641 (1980-09-01), Stolov
patent: 4368963 (1983-01-01), Stolov
patent: 4770525 (1988-09-01), Umeda et al.
Copy of European Search Report.
2244 Research Disclosure (1982), July, No. 219, Havant Hamshire, Great Britain, pp. 254-256.
IBM Technical Disclosure Bulletin, vol. 25, No. 7A, Dec. 1982, "Dispaly/TV-Controlled Filter/Lens Arrangement", pp. 3492-3493.
2287 Soviet Journal of Quantum Electronics, vol. 7, No. 9 (Sep. 1977), "Controlled Phase Transparencies in Coherent-Optical Systems Performing Walsh and Hilbert Transformations", pp. 1089--1-93.

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