광원 및 응용기술 : 형광체 코팅에 따른 Remote Phosphor 구조의 백색 LED 패키지 특성 평가
정희석, 이정근, 강한림, 황명근, 이미재, 김진호, 채유진, 이영식
Light Source and Application Technology : Regular Paper ; Evaluation of White LED Package Characteristics in Remote Phosphor Structure Depending on Phosphor Coatings
Hee Suk Jeong, Jung Geun Lee, Han Lim Kang, Myung Keun Hwang, Mi Jae Lee, Jin Ho Kim, Yoo Jin Chae, Young Sik Lee
J Korean Inst Electr Electron Mater Eng 2013;26(4):330-334.
Published online: April 1, 2013
We developed a package of remote phosphor structure having blue LED chips and phosphors physically separated, and the characteristics were evaluated according to different classifications of phosphor coatings. Remote phosphor was produced by screen printing coating on glass substrate with phosphor content rated paste and heat treatment. After mounting Remote phosphor, which has been classified according to number of coatings, on top of blue LED chips, luminous flux, luminous efficacy, CCT and CRI were measured. The measurement results showed the most suitable characteristics of white LED package as a general light source when the content rate of phosphor in Remote phosphor was 80 wt.% with 3 layers of coatings and thickness over 12 μm.
