Cathode ray tube including white luminous phosphor screen

Details Cathode ray tube including white luminous phosphor screen Cathode ray tube including white luminous phosphor screen

1985-10-21

1987-09-15

Moore, David K.

Electric lamp and discharge devices

Cathode ray tube

Screen

25230165, 2523016P, H01J 2970, C09K 114

Patent

active

046942173

ABSTRACT:
Disclosed is a cathode ray tube including a white emitting phosphor screen comprising, in mixing, a blue emitting phosphor having the composition expressed by a composition formula (M.sub.1-x Tb.sub.x).sub.2 O.sub.2 S (wherein M is Y and/or Gd, and the range of x is 0<x.ltoreq.0.01) and at least one other phosphor which does not contain Cd. This cathode ray tube has less luminance deterioration and burning of the phosphor screen, and it causes no pollution.

REFERENCES:
patent: 3868533 (1975-02-01), Schuil
patent: 4512912 (1985-04-01), Matsuda et al.

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