Process for producing phosphor and plasma display panel unit

Details Process for producing phosphor and plasma display panel unit Process for producing phosphor and plasma display panel unit

2007-05-29

2007-05-29

Schilling, Richard L. (Department: 1752)

Radiant energy

Invisible radiation responsive nonelectric signalling

Luminescent device

C252S30140R, C252S30140S, C252S30140P, C252S30140H, C252S30140F, C313S486000

Reexamination Certificate

active

10512416

ABSTRACT:
Fine particles of a phosphor are weighed, mixed, and filled. Provided after this step are at least one step of firing the particles in a reducing atmosphere, and a step of pulverizing, dispersing, rinsing, drying and then treating the particles in an ozone atmosphere after the last step of treatment in the reducing atmosphere. This method recovers oxygen vacancy in the host crystal of the phosphor.

REFERENCES:
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patent: 2004/0217706 (2004-11-01), Aoki et al.
patent: 2005/0277570 (2005-12-01), Zukawa et al.
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patent: 2002-334656 (2002-11-01), None
patent: 2003-336055 (2003-11-01), None

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