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학술지 Area-Selective External Light Extraction for Metal Bus Equipped Large Area Transparent Organic Light-Emitting Diodes
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저자
강병국, 조현수, 한준한, 신진욱, 송진욱, 박승구, 이종희, 주철웅, 김은혜, 유승협, 이정익, 주병권, 문제현
발행일
201603
출처
Optics Express, v.24 no.5, pp.5356-5365
ISSN
1094-4087
출판사
Optical Society of America(OSA)
DOI
https://dx.doi.org/10.1364/OE.24.005356
협약과제
16ZB1300, 초저가 플렉서블 Lighting Surface 기술 개발, 유병곤
초록
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 제안 키워드
External light, External surface, Organic light-emitting diodes(OLEDS), Quantum Efficiency, UV curing, large area, light extraction, light-emitting diode(LED), metal electrode, structured films, transparent organic light-emitting diodes