Fluorescent material substrate and image display device, and...

Details Fluorescent material substrate and image display device, and... Fluorescent material substrate and image display device, and...

2010-02-23

2011-12-27

Hines, Anne (Department: 2879)

Electric lamp and discharge devices

With luminescent solid or liquid material

C252S30140R

Reexamination Certificate

active

08084931

ABSTRACT:
Degradation of a fluorescent material used in an image display device provided with an electron emitting device that is caused by heating in the process of manufacturing the device is prevented.A coating layer44bcomposed of SiO2is formed on the surface of fluorescent material particles44a, and any metal49from among Bi, Pb, Sn, and Sb is added to the coating layer44bso that the metal concentration at the surface of the coating layer is equal to or greater than 0.05 ppm.

REFERENCES:
patent: 2006/0214576 (2006-09-01), Takahashi et al.
patent: 2002-338959 (2002-11-01), None

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