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 language | English |
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Pages (from-to) | 5356-5365 |
Number of pages | 10 |
Journal | Optics Express |
Volume | 24 |
Issue number | 5 |
DOIs | |
Publication status | Published - 2016 Mar 7 |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics