Phosphor and fluorescent display device

Details Phosphor and fluorescent display device Phosphor and fluorescent display device

1995-09-15

1997-04-08

Horabik, Michael

Electric lamp and discharge devices

With luminescent solid or liquid material

Vacuum-type tube

313468, 427 64, 2523014F, H01J 162, C09K 1108

Patent

active

056190980

ABSTRACT:
A phosphor is disclosed which is suitable for use for a fluorescent display device and driven at a driving voltage as low as 1 kV or less and free of S and Cd. Compounds of Ti, alkaline earth metal and an element of Group 13 of the periodic table in predetermined amounts are heated at 1100.degree. to 1400.degree. C. for calcination, resulting in a solid solution of the rare earth element and one element of Group 13 being formed in a phosphor matrix made of an oxide of alkaline earth metal and Ti. An example of the phosphor is SrTiO.sub.3 :Pr,Al exhibiting a red luminous color.

REFERENCES:
patent: 3264133 (1966-08-01), Brooks
patent: 3725811 (1973-04-01), Murphy
patent: 3728594 (1973-04-01), Yim et al.
patent: 5367173 (1994-11-01), Morlotti

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