Phosphor and plasma display panel

Details Phosphor and plasma display panel Phosphor and plasma display panel

2005-08-26

2008-11-18

Koslow, C. Melissa (Department: 1793)

Compositions

Inorganic luminescent compositions

Zinc or cadmium containing

C313S582000, C313S584000, C313S486000

Reexamination Certificate

active

07452485

ABSTRACT:
Disclosed are a phosphor in which prevention of aging deterioration of luminance and prevention of deterioration of discharging characteristics are compatible, a method of manufacturing the phosphor, and a plasma display panel manufactured by using the phosphor. A phosphor of the invention containing Mn as an activator is one with Mn serving as a major emission, wherein a ratio of an activator concentration in a superficial portion of a phosphor particle to an activator concentration inside the phosphor particle is 0.3-0.7.

REFERENCES:
patent: 4925703 (1990-05-01), Kasenga et al.
patent: 2006/0043339 (2006-03-01), Tsukada
patent: 2004-091622 (2004-03-01), None

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