Phosphor for use in a cathode-ray tube and display device using

Details Phosphor for use in a cathode-ray tube and display device using Phosphor for use in a cathode-ray tube and display device using

1993-06-29

1994-08-30

Cooper, Jack

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

2523014R, 313468, G02F 11335, C09K 1180

Patent

active

053433165

ABSTRACT:
A red-emitting phosphor represented by a general formula (Y.sub.1-x-y Cr.sub.x Gd.sub.y).sub.3 (Al.sub.1-z Ga.sub.z).sub.5 O.sub.12 with the provide that 0.0005.ltoreq.x.ltoreq.0.05, O.ltoreq.y.ltoreq.1, O.ltoreq.z.ltoreq.1, providing red- and infrared emitting luminescence, using alone or in a mixture with other phosphors in a cathode ray tube, having a constant main emission peak even if excited by a high current density, having a satisfactory luminescence efficiency, and causing less brightness saturation in proportion as a current density increases.

REFERENCES:
patent: 4469619 (1984-09-01), Ohno et al.
patent: 4762639 (1988-08-01), Kasenga et al.
patent: 5202777 (1993-04-01), Sluzky et al.

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