Weak-microcavity organic light-emitting diodes with improved light out-coupling

被引：30

作者：

Cho, Sang-Hwan ^{[1
,2
]}

Song, Young-Woo ^{[2
]}

Lee, Joon-gu ^{[2
]}

Kim, Yoon-Chang ^{[2
]}

Lee, Jong Hyuk ^{[2
]}

Ha, Jaeheung ^{[2
]}

Oh, Jong-Suk ^{[2
]}

Lee, So Young ^{[2
]}

Lee, Sun Young ^{[2
]}

Hwang, Kyu Hwan ^{[2
]}

Zang, Dong-Sik ^{[2
]}

Lee, Yong-Hee ^{[1
]}

机构：

[1] Korea Adv Inst Sci & Technol, Dept Phys, Taejon 305701, South Korea

[2] Samsung SDI Co Ltd, Corp Res & Dev Ctr, Mat Lab, Yongin 446577, Gyeonggi Do, South Korea

来源：

OPTICS EXPRESS | 2008年 / 16卷 / 17期

关键词：

D O I：

10.1364/OE.16.012632

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose and demonstrate weak-microcavity organic light-emitting diode (OLED) displays with improved light-extraction and viewing-angle characteristics. A single pair of low-and high-index layers is inserted between indium tin oxide (ITO) and a glass substrate. The electroluminescent (EL) efficiencies of discrete red, green, and blue weak-microcavity OLEDs are enhanced by 56%, 107%, and 26%, respectively, with improved color purity. Moreover, full-color 128 x 160 passive-matrix bottom-emitting OLED displays are fabricated by employing low-index layers of two thicknesses. As a display, the EL efficiency of white color was 27% higher than that of a conventional OLED display. (c) 2008 Optical Society of America.

引用

页码：12632 / 12639

页数：8

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