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Journal Article
Area-Selective External Light Extraction for Metal Bus Equipped Large Area Transparent Organic Light-Emitting Diodes
- Authors
- Byoung-Kuk Kang, Hyunsu Cho, Jun-Han Han, Jin-Wook Shin, Jinouk Song, Seung Koo Park, Jonghee Lee, Chul Woong Joo, Eunhye Kim, Seunghyup Yoo, Jeong-Ik Lee, Byeong-Kwon Ju, Jaehyun Moon
- Issue Date
- 2016-03
- Citation
- Optics Express, v.24, no.5, pp.5356-5365
- ISSN
- 1094-4087
- Publisher
- Optical Society of America(OSA)
- Language
- English
- Type
- Journal Article
- Abstract
- Area-selective external light extraction films based on wrinkle structured films were applied to large transparent organic light-emitting diodes (TOLEDs) with auxiliary metal buses. To be specific, on the external surface of the glass, we selectively formed a wrinkle structured film, which was aligned to the auxiliary metal electrodes. The wrinkle-structured film was patterned using a photo-mask and UV curing, which has the same shape of the auxiliary metal electrodes. With this area-selective film, it was possible to enhance the external quantum efficiencies of the bottom and top emissions TOLEDs by 15.7% and 15.1%, respectively, without significant loss in transmittance. Widened angular luminance distributions were also achieved in both emissions directions.
- KSP Keywords
- External light, External surface, UV-curing, large area, light emitting diodes(LED), light extraction, metal electrode, organic light emitting diode(OLED), quantum efficiency(QE), structured films, transparent organic light-emitting diodes
This work is distributed under the term of Creative Commons License (CCL)
(CC BY)
(CC BY)
