环氧树脂及高折硅胶保护涂层对COB封装LED光源抗硫化性能的研究  

Research on the Sulfur Resistance of Chip on Board Light by Epoxy Resin and High Refractive Silicone Protective Coatings

作　　者：温作杰 李炳乾 张荣荣 杨明德 刘建平 夏正浩 冯振聪 WEN Zuojie;LI Bingqian;ZHANG Rongrong;YANG Mingde;LIU Jianping;XIA Zhenghao;FENG Zhencong(College of Applied Physics and materials,Wuyi University,Jiangmen 529020,China;Zhongshan Guangsheng Semiconductor Technology Co.,Ltd.,Zhongshan 528421,China;Zhongshan Mulinsen Electronics Co.,Ltd,Zhongshan 528421,China)

机构地区：[1]五邑大学应用物理与材料学院,广东江门529020 [2]中山市光圣半导体科技有限责任公司,广东中山528421 [3]中山市木林森电子有限公司,广东中山528400

出　　处：《照明工程学报》2022年第4期93-98,共6页China Illuminating Engineering Journal

基　　金：国家自然科学基金(21975187);广东省教育厅重点平台建设跃升计划工程中心项目(GCZX-A1411);五邑大学校级教学质量与教学改革工程(JX2018001,JX2019038)。

摘　　要：为了提高COB封装LED光源的抗硫化性能,利用环氧树脂和高折硅胶优异的防渗漏性能,设计了分别带有环氧树脂和高折硅胶保护涂层的COB LED光源,并使用高温加速方法对新结构光源的抗硫化性能进行了实验探究。结果表明,涂覆环氧树脂保护层的光源并没有产生硫化现象,涂覆高折硅胶保护层的光源发生了轻微硫化,相较于未涂覆保护层的光源其抗硫化能力得到了较大的提升。同时还对增加涂层前后光源的光色参数进行了测量,发现增加涂层后,光源的色温等参数会有一定程度的改变,需要在光源设计或使用时提前考虑。In order to improve the anti-vulcanization performance of light emitting diode(LED)of chips on board(COB)package,using the excellent anti-leakage properties of epoxy resin and high refractive silicone,COB LED light sources with epoxy resin and high refractive silicone protective coatings were designed respectively,and accelerated by high temperaturemethods the anti-sulfur properties of the new structured light source were experimentally investigated.The results show that the light source coated with epoxy resin protective layer does not produce vulcanization,but the light source coated with high refractive silicone protective layer is slightly vulcanized.Compared with the light source without protective layer,its anti-vulcanization ability has been greatly improved promote.At the same time,the light color parameters of the light source before and after adding the coating were measured,and it was found that after adding the coating,the color temperature of the light source and other parameters will change to a certain extent,which needs to be considered in advance in the design or use of the light source.

关 键 词：COB 保护涂层 抗硫化 光电参数 

分 类 号：TM923[电气工程—电力电子与电力传动]