Study on the mechanism of color coordinate shift of LED package  

作　　者：Yunyi Zhuang Yong Wang Bobo Yang Zhanguo Li Lei Yang Jun Zou 

机构地区：[1]National Key Laboratory on High Power Semiconductor Lasers, Changchun University of Science and Technology,Changchun 130022, China [2]Zhejiang Emitting Optoelectronic Technology Co., Ltd., Jiaxing 314100, China [3]School of Science, Institute of Technology, Shanghai 201418, China

出　　处：《Journal of Semiconductors》2017年第7期78-82,共5页半导体学报（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.11474036);the Natural Science Foundation of Shanghai(No.12ZR1430900);the Shanghai Institute of Technology Talents Scheme(No.YJ2014-04);the Shanghai Municipal Alliance Program(Nos.Lm201514,Lm201505,Lm201455);the Science and Technology Commission of Shanghai Municipality(CN)(No.14500503300);the Shanghai Cooperative Project(No.Shanghai CXY-2013-61);the Jiashan County Technology Program(No.20141316)

摘　　要：In the paper, the influences of the chip, silicone and phosphors on the color coordinate shift of LED were studied. In the process of LED baking, it was found that the effect of the chip and silicone on the color coordinate drift is less than 3% through the analysis of each influencing factor. But the influence of the phosphors is large and accounted for 11.11% of the overall impact factors. Therefore, it is important to select the better green phosphors in thermal stability for the LED package and it has a guiding significance to the color coordinate of LED distribution.In the paper, the influences of the chip, silicone and phosphors on the color coordinate shift of LED were studied. In the process of LED baking, it was found that the effect of the chip and silicone on the color coordinate drift is less than 3% through the analysis of each influencing factor. But the influence of the phosphors is large and accounted for 11.11% of the overall impact factors. Therefore, it is important to select the better green phosphors in thermal stability for the LED package and it has a guiding significance to the color coordinate of LED distribution.

关 键 词：light-emitting diode（LED） phosphors spectra intensity shift 

分 类 号：TN312.8[电子电信—物理电子学]