Method for manufacturing spherical blue fluorescent substance

Details Method for manufacturing spherical blue fluorescent substance Method for manufacturing spherical blue fluorescent substance

2005-01-11

2005-01-11

Koslow, C. Melissa (Department: 1755)

Compositions

Inorganic luminescent compositions

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

C313S486000, C313S582000, C313S584000

Reexamination Certificate

active

06841093

ABSTRACT:
The present invention relates to a method for manufacturing spherical and highly crystalline BAM blue phosphor particles, that are close to a single crystal. According to the present invention, the spherical BAM blue particles that are preferable for embodying pictures on a very bright PDP screen can be obtained by mixing raw materials with fluxes to prepare a mixture, transferring the mixture into a closed reactor, and heat-treating the mixture under a reducing atmosphere containing nitrogen and hydrogen.

REFERENCES:
patent: 5350971 (1994-09-01), Jeong
patent: 5611959 (1997-03-01), Kijima et al.
patent: 6197218 (2001-03-01), Hampden-Smith et al.
patent: 52-144385 (1977-12-01), None
patent: 2-170888 (1990-07-01), None
patent: 9-157644 (1997-06-01), None
patent: 09-310067 (1997-12-01), None
Translation for JP 09-157644.

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