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锥状微结构阵列提高OLED出光效率的研究

Improvement of OLED luminous efficiency by cone-shaped microstructure array

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摘要

为提高OLED出光效率,在OLED基底上设计锥状微结构阵列,通过几何光学和光线追迹方法分析了锥状微结构对OLED出光效率的影响。结果表明:锥状微结构阵列最大可以提高60%的出光效率;锥状微结构阵列的占空比、材料折射率和坡度角对出光效率有较大影响;锥状微结构阵列不会改变OLED的辐射角,且有一定的聚光作用。结果为提高OLED出光效率提供一种新的参考和方法。

Abstract

A cone-shaped microstructure array was designed on the OLED substrate in order to improve the luminous efficiency of OLED. By means of geometrical optics and ray tracing method, the influence of the surface structure on the luminous efficiency is analyzed. Analysis shows that the maximum luminous efficiency is increased to 60%. Parameters of cone-shaped microstructure array such as duty ratio, the refractive index of the cone microstructure and the slope angle have great effect on the light efficiency. The cone microstructure arrays do not change the radiation angle of OLED, and has concentration function. Results provide a new reference and method for improving the luminous efficiency of OLED.

Newport宣传-MKS新实验室计划
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中图分类号:TN383+.1

DOI:10.3788/yjyxs20183310.0823

所属栏目:材料与器件

基金项目:国家自然科学基金(No.61661034);江西省重点研发计划(No.20171BBE50012);南昌航空大学博士基金(EA201708389)

收稿日期:2018-04-07

修改稿日期:2018-08-11

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钟可君:南昌航空大学 无损检测教育部重点实验室,江西 南昌 330063
伏燕军:南昌航空大学 无损检测教育部重点实验室,江西 南昌 330063
江光裕:南昌航空大学 无损检测教育部重点实验室,江西 南昌 330063

联系人作者:钟可君(kjzhong@126.com)

备注:钟可君(1978-),男,江西于都县人,博士,讲师,2005年于华南师范大学获硕士学位,2016年于南京航空航天大学获博士学位,主要研究方向为半导体光电子器件和光学检测。E-mail:kjzhong@126.com

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引用该论文

ZHONG Ke-jun,FU Yan-jun,JIANG Guang-yu. Improvement of OLED luminous efficiency by cone-shaped microstructure array[J]. Chinese Journal of Liquid Crystals and Displays, 2018, 33(10): 823-830

钟可君,伏燕军,江光裕. 锥状微结构阵列提高OLED出光效率的研究[J]. 液晶与显示, 2018, 33(10): 823-830

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