Title:
Rare Earth Oxide Coated Phosphors

dc.contributor.patentcreator Park, Wounjhang
dc.contributor.patentcreator Yasuda, Kazuhito
dc.contributor.patentcreator Wagner, Brent K.
dc.contributor.patentcreator Summers, Christopher J.
dc.contributor.patentcreator Do, Youngrag
dc.contributor.patentcreator Yang, Hong Guen
dc.date.accessioned 2017-05-12T14:28:29Z
dc.date.available 2017-05-12T14:28:29Z
dc.date.filed 2/20/2004
dc.date.issued 3/11/2008
dc.description.abstract The present invention provides surface coated phosphors useful in field emission displays and vacuum fluorescent displays. The surface coated phosphor comprises a thin coating of rare earth oxide, e.g., yttrium oxide, disposed on an uncoated phosphor such as a sulfide phosphor. The present invention further provides a process for preparing a surface coated phosphor comprising contacting the uncoated phosphor with a rare earth hydroxide gel solution to obtain a rare earth hydroxide gel coated phosphor, drying the gel coated phosphor to remove solvent residues, and heat treating the dried rare earth hydroxide gel coated phosphor. The surface coated phosphors of the present invention have improved cathodoluminescence efficiency, coulombic aging resistance, chemical, and/or oxidative stability.
dc.description.assignee Georgia Tech Research Corporation
dc.description.assignee Samsung Display Devices Co., Ltd.
dc.identifier.cpc C09K11/025
dc.identifier.cpc C09K11/584
dc.identifier.cpc Y10T428/2991
dc.identifier.patentapplicationnumber 10/784093
dc.identifier.patentnumber 7341779
dc.identifier.uri http://hdl.handle.net/1853/57728
dc.identifier.uspc 428/403
dc.title Rare Earth Oxide Coated Phosphors
dc.type Text
dc.type.genre Patent
dspace.entity.type Publication
local.contributor.corporatename Georgia Institute of Technology
local.relation.ispartofseries Georgia Tech Patents
relation.isOrgUnitOfPublication cc30e153-7a64-4ae2-9b1d-5436686785e3
relation.isSeriesOfPublication 0f49c79d-4efb-4bd9-b060-5c7f9191b9da
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