The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 10, 2009
Filed:
Dec. 29, 2005
Kwang-wook Choi, Daejeon, KR;
Chang-seok Ryoo, Daejeon, KR;
Do-hoon Kim, Daejeon, KR;
Ick-soon Kwak, Daejeon, KR;
Tae-hyun Kwon, Daejeon, KR;
Kwang-wook Choi, Daejeon, KR;
Chang-seok Ryoo, Daejeon, KR;
Do-hoon Kim, Daejeon, KR;
Ick-soon Kwak, Daejeon, KR;
Tae-hyun Kwon, Daejeon, KR;
Daejoo Electronic Materials Co., Ltd., Kyunggi-do, KR;
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.