Phosphor and plasma display panel using the same

Details Phosphor and plasma display panel using the same Phosphor and plasma display panel using the same

2005-05-04

2008-12-16

Koslow, C. Melissa (Department: 1793)

Compositions

Inorganic luminescent compositions

Zinc or cadmium containing

C313S582000, C313S584000, C313S486000

Reexamination Certificate

active

07465413

ABSTRACT:
A phosphor of the present invention is characterized by: having a phosphor main portion containing zinc silicate as a base material and manganese as an activator; and having at least one element from among titanium (Ti), zirconium (Zr), and hafnium (Hf), or having at least one element from among molybdenum (Mo) and tungsten (W), added to the phosphor main portion. The phosphor with such a composition is capable of precisely controlling the composition of a surface region (i.e. the surface including the vicinity) of each phosphor particle and improving the crystallinity, which leads to a high luminous efficiency and a reduction in time-lapse degradation.

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Keikota Handbook (Handbook of Phosphors), edited by the Phosphor Research Society and published by Ohmsha on Dec. 25, 1987, pp. 219-220, with partial English translation and verification of translation.

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