CAJ | 학술논문

远程荧光技术是传统LED封装散热不良问题的解决方法之一。本文用红色和黄色荧光粉以及光固化树脂，通过光固化方式制备了荧光转换膜，并制备了简单的远程白光LED器件，研究了荧光粉组成、芯片与荧光转换膜的距离及输入电流对远程白光LED器件光学特性的影响，实验结果表明，荧光粉的组成比例对显色指数，色温等都有影响，而荧光转换膜与芯片的距离以及输入电流对器件的光学特性影响不大。本实验还通过添加光扩散剂解决了白光LED芯片发光刺眼问题。研究结果可为新型白光LED的结构设计提供参考。
원정형광기술시전통LED봉장산열불량문제적해결방법지일。본문용홍색화황색형광분이급광고화수지，통과광고화방식제비료형광전환막，병제비료간단적원정백광LED기건，연구료형광분조성、심편여형광전환막적거리급수입전류대원정백광LED기건광학특성적영향，실험결과표명，형광분적조성비례대현색지수，색온등도유영향，이형광전환막여심편적거리이급수입전류대기건적광학특성영향불대。본실험환통과첨가광확산제해결료백광LED심편발광자안문제。연구결과가위신형백광LED적결구설계제공삼고。
Remote phosphor LED is a promising technical solution for the heat dissipation in LED devices . In this paper , the phosphor conversion layer is prepared by UV curing of resin mixture composed of red and yellow phosphor .A simple white LED demo device is fabricated with this phosphor conversion layer to study the influences of composition of the phosphor layer , the distance between the chip and phosphor layer and the input electric current on the performance of the white LED device .It is found that the composition of phosphor layer does affect the color rendering index and color temperature , but the distance between the chip and the phosphor conversion layer and input electric current have little influence on optical property . In this paper , the blinding light from the LED chip is also eliminated with light scattering agent .The results of this work could be a reference for structure design of new white LED devices .