Electroluminescent phosphor powders, methods for making...

Details Electroluminescent phosphor powders, methods for making... Electroluminescent phosphor powders, methods for making...

2006-06-27

2006-06-27

Koslow, C. Melissa (Department: 1755)

Compositions

Inorganic luminescent compositions

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

Reexamination Certificate

active

07067070

ABSTRACT:
Electroluminescent phosphor powders and a method for making phosphor powders. The phosphor powders have a small particle size, narrow particle size distribution and are substantially spherical. The method of the invention advantageously permits the economic production of such powders. The invention also relates to improved devices, such as electroluminescent display devices, incorporating the phosphor powders.

REFERENCES:
patent: 5413736 (1995-05-01), Nishisu et al.
patent: 5879647 (1999-03-01), Wataya et al.
patent: 6180029 (2001-01-01), Hampden-Smith et al.
patent: 6197218 (2001-03-01), Hampden-Smith et al.
patent: 6875372 (2005-04-01), Hampden-Smith et al.

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