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Characterization of light extraction efficiency for WOLEDS with light‐out‐coupling layer |
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| Authors: | Motoko Harada Hironori Wakana Shunichiro Nobuki Hirotaka Sakuma Masahiro Kawasaki Sukekazu Aratani |
| Affiliation: | 1. Hitachi Research Laboratory, Hitachi, Ltd., Tokyo, Japan;2. Central Research Laboratory, Hitachi, Ltd., Tokyo, Japan |
| Abstract: | We studied the light extraction efficiencies of white organic light‐emitting diodes with a light‐out‐coupling layer by simulations and experiments. The light extraction efficiencies estimated by the simulation were confirmed to agree well with those measured by the experiments. Moreover, we successfully obtained the high light extraction efficiency (ηOC) of 69%. |
| Keywords: | organic light‐emitting diodes (OLEDs) white OLEDs (WOLEDs) light extraction efficiency light extraction layer (LOC layer) simulation refractive index |