Coating processes – Solid particles or fibers applied
Reexamination Certificate
2005-12-29
2009-11-10
Group, Karl E (Department: 1793)
Coating processes
Solid particles or fibers applied
C427S064000, C427S067000, C427S071000, C427S212000, C252S30140R, C428S403000, C428S404000
Reexamination Certificate
active
07615248
ABSTRACT:
Provided are a method for preparing a blue-emitting BAM phosphor which includes: surface-treating phosphor particles with metal oxide nanoparticles, and a blue-emitting BAM phosphor prepared by the method. The blue-emitting BAM phosphor exhibits better dispersibility and flowability in coating slurry without undergoing a reduction in initial brightness, thereby providing less color variation at ends of a BLU lamp. The blue-emitting BAM phosphor can be directly applied in a currently available method of manufacturing a BLU lamp, and when mixed with existing red and green phosphors, can remarkably reduce color variation at ends of a lamp. Therefore, the quality of a BLU lamp for large-scale displays can be greatly improved.
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Choi Kwang-wook
Kim Do-hoon
Kwak Ick-soon
Kwon Tae-hyun
Ryoo Chang-seok
Daejoo Electronic Materials Co., Ltd.
Group Karl E
McKenna Long & Aldridge LLP
Wiese Noah S
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