Projection cathode-ray tube with green emitting phosphor screen

Details Projection cathode-ray tube with green emitting phosphor screen Projection cathode-ray tube with green emitting phosphor screen

1988-06-22

1990-05-08

Yusko, Donald J.

Electric lamp and discharge devices

Cathode ray tube

Screen

2523014R, H01J 2920

Patent

active

049241397

ABSTRACT:
This invention relates to a phosphor prepared by mixing a green emitting phosphor InBO.sub.3 :Tb having an excellent color tone with other green emitting phosphors having a short decay time such as Y.sub.3 Al.sub.5-m Ga.sub.m O.sub.12 :Tb in amounts such that the "decay time to 10% of peak brightness" measured by a raster spot method is below 10 ms. The phosphor screen of a projection cathode-ray tube is formed by use of this phosphor. The projection cathode-ray tube thus produced has an excellent color tone and a short decay time.

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