Fluorescent material and fluorescent display apparatus

Details Fluorescent material and fluorescent display apparatus Fluorescent material and fluorescent display apparatus

2005-03-23

2008-08-26

Koslow, C. Melissa (Department: 1793)

Compositions

Inorganic luminescent compositions

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

Reexamination Certificate

active

07416685

ABSTRACT:
A CaTiO3:Pr,M fluorescent material including 100 mol % of calcium titanate CaTiO3as a host crystal; from 0.003 mol % to 0.05 mol % of praseodymium Pr which is added, as a first additive, to the host crystal; and at least one of aluminum Al, gallium Ga, indium In, zinc Zn, magnesium Mg, sodium Na, and potassium K which is added, as a second additive M, to the host crystal.

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A. Vecht et al.; “New electron excited light emitting materials”; J. Vac.Sci. Technol. B 12(2), Mar./Apr. 1994 pp. 781-784.
P.T. Diallo et al.; “Improvement of the optical performance of Pr3+in CaTiO3”; Journal of Alloys and Compounds 323-324 (2001) pp. 218-222.
Seound-Youl Kang et al.; “The Influence of Li Addition on Cathodoluminescence for CaTiO3:Pr3+”; Eurodisplay 2002 pp. 777-779.

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