47.4: Distinguished Paper: Realization of Outstandingly High Efficacy White OLED by Controlling Evanescent Mode and Wide Angular Incident Light

Optimization of angular light distribution in organic layer and light extraction structure based on high refractive index substrate were investigated. Due to advanced optical design for decreasing waveguide and evanescent modes, white OLED device with outstandingly high efficacy of 133 lm/W at 1,000...

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Bibliographic Details
Published in:SID International Symposium Digest of technical papers 2014-06, Vol.45 (1), p.682-685
Main Authors: Yamae, Kazuyuki, Kittichungchit, Varutt, Ide, Nobuhiro, Ota, Masuyuki, Komoda, Takuya
Format: Article
Language:English
Subjects:
Devices
Effectiveness
evanescent
incident angle
Incident light
Light distribution
light extraction efficiency
OLED
Optical design
Optimization
outcoupling
phosphorescent
Refractive index
Refractivity
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Summary:Optimization of angular light distribution in organic layer and light extraction structure based on high refractive index substrate were investigated. Due to advanced optical design for decreasing waveguide and evanescent modes, white OLED device with outstandingly high efficacy of 133 lm/W at 1,000 cd/m2 was realized.
ISSN:0097-966X
2168-0159
DOI:10.1002/j.2168-0159.2014.tb00179.x