Gallium nitride phosphor, its method of manufacture, and a...

Details Gallium nitride phosphor, its method of manufacture, and a... Gallium nitride phosphor, its method of manufacture, and a...

2005-06-14

2005-06-14

Koslow, C. Melissa (Department: 1755)

Compositions

Inorganic luminescent compositions

Compositions containing halogen; e.g., halides and oxyhalides

C313S503000, C117S952000

Reexamination Certificate

active

06905635

ABSTRACT:
This invention presents a gallium nitride phosphor with superior light emitting characteristics, its method of manufacture, and a display device which uses the phosphor. By heat treatment or microwave irradiation of gallium nitride phosphor powder in an ambient containing essentially no H2or H2O, a phosphor is produced wherein the amount of H2and H2O gas evolved when heated in a vacuum is less than or equal to 0.2 cm3/g of phosphor and 2.0 cm3/g of phosphor respectively.

REFERENCES:
patent: 5926726 (1999-07-01), Bour et al.
patent: 6017807 (2000-01-01), Furukawa et al.
patent: 6337035 (2002-01-01), Itoh et al.
patent: 2002/0157596 (2002-10-01), Stockman et al.

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