Projection type color picture display system having green pictur

Details Projection type color picture display system having green pictur Projection type color picture display system having green pictur

1987-03-19

1989-07-04

Wieder, Kenneth

Electric lamp and discharge devices

Cathode ray tube

Screen

313461, H01J 2920

Patent

active

048454036

ABSTRACT:
In a projection type color picture display system having red, green and blue picture producing cathode-ray tubes in which the green picture producing cathode-ray tube is capable of emitting green light defined as x.ltorsim.0.330 and y.gtorsim.0.570 in the CIE chromaticity diagram, use is made of a ZnS: Ag, Al phosphor material for forming the phosphor screen of the blue picture producing cathode-ray tube. The projection type display system thus obtained is capable of displaying color pictures with a high color purity and a high saturation.

REFERENCES:
patent: 4140940 (1979-02-01), Uehara et al.
patent: 4533850 (1985-08-01), Ohkoshi et al.
patent: 4683398 (1987-07-01), Vriens et al.
Inter-University Electronics Series, vol. 5, Luxenberg et al., "Display Engineering (Trans.)", pp. 304 & 305, 8/68, McGraw-Hill, Inc.
Toshiba Review, vol. 35, No. 7, "CRT--Progress of CRT for Display", pp. 598, 603 & 604, 1/80.
Hitachi, Ltd., Uehara et al., "Calcium Sulfide Phosphors for Projection Tubes", pp. 13-17, 3/71.

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