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

2007-02-13

2007-02-13

Williams, Joseph (Department: 2879)

Electric lamp and discharge devices

With gas or vapor

Three or more electrode discharge device

C313S583000, C313S584000, C313S585000, C313S586000, C252S30140R

Reexamination Certificate

active

10512437

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 oxygen plasma atmosphere after the last step of treatment in the reducing atmosphere. This method recovers oxygen vacancy in the host crystal of the phosphor.

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patent: 2002/0011800 (2002-01-01), Schermerhorn et al.
patent: 2004/0217706 (2004-11-01), Aoki et al.
patent: 2005/0200277 (2005-09-01), Sugimoto et al.
patent: 0 312 383 (1989-04-01), None
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patent: 2002-180043 (2002-06-01), None
patent: 2003-334656 (2002-11-01), None

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