Area-selective external light extraction for metal bus equipped large Area transparent organic light-emitting diodes

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

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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.

Original languageEnglish
Pages (from-to)5356-5365
Number of pages10
JournalOptics Express
Volume24
Issue number5
DOIs
Publication statusPublished - 2016 Mar 7

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ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Kang, B. K., Cho, H., Han, J. H., Shin, J. W., Song, J., Park, S. K., Lee, J., Joo, C. W., Kim, E., Yoo, S., Lee, J. I., Ju, B. K., & Moon, J. (2016). Area-selective external light extraction for metal bus equipped large Area transparent organic light-emitting diodes. Optics Express, 24(5), 5356-5365. https://doi.org/10.1364/OE.24.005356