OLED with improved light outcoupling
Abstract
An OLED may include regions of a material having a refractive index less than that of the substrate, or of the organic region, allowing for emitted light in a waveguide mode to be extracted into air. These regions can be placed adjacent to the emissive regions of an OLED in a direction parallel to the electrodes. The substrate may also be given a nonstandard shape to further improve the conversion of waveguide mode and/or glass mode light to air mode. The outcoupling efficiency of such a device may be up to two to three times the efficiency of a standard OLED. Methods for fabricating such a transparent or top-emitting OLED is also provided.
- Inventors:
- Issue Date:
- Research Org.:
- Univ. of Michigan, Ann Arbor, MI (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1333726
- Patent Number(s):
- 9508957
- Application Number:
- 12/531,595
- Assignee:
- The Regents of the University of Michigan (Ann Arbor, MI)
- DOE Contract Number:
- FG02-04ER84113; FC26-04NT42272
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2008 Mar 31
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
Citation Formats
Forrest, Stephen, and Sun, Yiru. OLED with improved light outcoupling. United States: N. p., 2016.
Web.
Forrest, Stephen, & Sun, Yiru. OLED with improved light outcoupling. United States.
Forrest, Stephen, and Sun, Yiru. Tue .
"OLED with improved light outcoupling". United States. https://www.osti.gov/servlets/purl/1333726.
@article{osti_1333726,
title = {OLED with improved light outcoupling},
author = {Forrest, Stephen and Sun, Yiru},
abstractNote = {An OLED may include regions of a material having a refractive index less than that of the substrate, or of the organic region, allowing for emitted light in a waveguide mode to be extracted into air. These regions can be placed adjacent to the emissive regions of an OLED in a direction parallel to the electrodes. The substrate may also be given a nonstandard shape to further improve the conversion of waveguide mode and/or glass mode light to air mode. The outcoupling efficiency of such a device may be up to two to three times the efficiency of a standard OLED. Methods for fabricating such a transparent or top-emitting OLED is also provided.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Nov 29 00:00:00 EST 2016},
month = {Tue Nov 29 00:00:00 EST 2016}
}
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