Light diffusing effects of nano and microstructures on OLED with microcavity
Light diffusing effects of nano and microstructures on OLED with microcavity
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DOI：
10.1364/oe.22.0a1507
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发表时间：
2014-10-20
期刊：
影响因子：
3.8
通讯作者：
Lee, Jeong-Ik
中科院分区：
文献类型：
--
作者：
Cho, Doo-Hee;Shin, Jin-Wook;Lee, Jeong-Ik
我们研究了纳米结构和微结构对微腔设计的OLED的光扩散效应。FDTD模拟和实验结果表明，柱状纳米结构比凹面微结构更能有效地实现微腔OLED的光扩散。纳米结构改变了微腔OLED的锐利亮度分布，使其接近朗伯亮度分布，光扩散效应随着纳米结构高度的增加而增加。此外，该纳米结构具有以下优点：衬底模式的光提取、制造工艺的重现性、以及将OLED显示面板中的像素模糊问题降至最低。这种纳米结构是一种很有前途的光漫射器候选材料，解决了微腔OLED的视角问题。(C)2014年美国光学学会
We examined the light diffusing effects of nano and microstructures on microcavity designed OLEDs. The results of FDTD simulations and experiments showed that the pillar shaped nano-structure was more effective than the concave micro-structure for light diffusing of microcavity OLEDs. The sharp luminance distribution of the microcavity OLED was changed to near Lambertian luminance distribution by the nanostructure, and light diffusing effects increased with the height of the nanostructure. Furthermore, the nano-structure has advantages including light extraction of the substrate mode, reproducibility of manufacturing process, and minimizing pixel blur problems in an OLED display panel. The nanostructure is a promising candidate for a light diffuser, resolving the viewing angle problems in microcavity OLEDs. (C) 2014 Optical Society of America