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Conference Paper
Efficient White Transparent Organic Light Emitting Diodes with Double Layered Capping Layers
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- Authors
- Jin Woo Huh, Jaehyun Moon, Doo-Hee Cho, Jin-Wook Shin, Jun-Han Han, Joohyun Hwang, Chul Woong Joo, Nam Sung Cho, Seung Koo Park, Hye Yong Chu, Jeong-Ik Lee
- Issue Date
- 2012-08
- Citation
- International Meeting on Information Display (IMID) 2012, pp.1-2
- Language
- English
- Type
- Conference Paper
- Abstract
- We report on white transparent organic light emitting diode (TOLED) with double layered capping layer (CL). By introducing the double layered CL with different refractive indexes, total efficiency was improved by 27% to have 90% of that of conventional bottom-emissive device. By adjusting the reflectance of the CL, it was possible to choose the emissions direction selectively and achieve spectral matching between top and bottom emissions as well as enhanced total efficiency in white TOLED.
- KSP Keywords
- Capping layer, Double layered, Organic light-emitting diodes(OLEDS), Spectral matching, light-emitting diode(LED), refractive index, total efficiency