Yellow ZnS-based phosphor, process of preparing the same and...

Details Yellow ZnS-based phosphor, process of preparing the same and... Yellow ZnS-based phosphor, process of preparing the same and...

2007-09-04

2007-09-04

Koslow, C. Melissa (Department: 1755)

Compositions

Inorganic luminescent compositions

Zinc or cadmium containing

C313S495000

Reexamination Certificate

active

10368385

ABSTRACT:
A yellow ZnS-based phosphor having improved color coordinates and luminance for use in intermediate- and low-voltage display devices using improved activators and coactivators has color coordinates (x, y) shifting to a yellow emission as the amount of an activator is increased. Therefore, the ZnS: (Au or Cu), In phosphor can be advantageously utilized for various display applications including vacuum fluorescent displays (VFDs) and field emission displays (FEDs).

REFERENCES:
patent: 2743237 (1956-04-01), Froelich
patent: 3507805 (1970-04-01), Lehmann
patent: 3957678 (1976-05-01), Dikhoff et al.
patent: 62-201990 (1987-09-01), None
U.S. Appl. No. 10/368,341, filed Feb. 20, 2003, Lee et al., Samsung SDI Co., Ltd.

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