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51.4: High‐Efficiency White OLEDs with Built‐up Outcoupling Substrate
Author(s) -
Yamae Kazuyuki,
Tsuji Hiroya,
Kittichungchit Varutt,
Matsuhisa Yuko,
Hayashi Shintarou,
Ide Nobuhiro,
Komoda Takuya
Publication year - 2012
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1002/j.2168-0159.2012.tb05877.x
Subject(s) - oled , substrate (aquarium) , materials science , optoelectronics , layer (electronics) , refractive index , high refractive index polymer , optics , nanotechnology , physics , oceanography , geology
A built‐up outcoupling substrate with a micro‐patterned high refractive index layer was developed in order to obtain both high efficiency and reliability for OLEDs. Light extraction efficiency of this substrate was about 47%, and high efficacy of about 85 lm/W was achieved by the combination with an all phosphorescent white OLED.