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Optical Engineering

Improved viewing characteristics of red emission top-emitting organic light-emitting devices by integrating grating
Author(s): Yan-Hui Wang; Hai-Feng Cui; Yi-Fan Zhang; Ai-Wu Li
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Paper Abstract

An effective way to resolve the viewing-angle characteristics of microcavity red emission top-emitting organic light-emitting diodes (TOLEDs) by introducing grating and filling process into TOLEDs is demonstrated. From this approach, gradually changed cavity length can be obtained and the range of the resonant wavelength in these devices can be broadened. As a result, TOLEDs with grating exhibit a quasi-Lambertian emission pattern and have no color shift at different viewing angles. In addition, we can almost observe the same luminance and efficiency in TOLEDs with and without grating.

Paper Details

Date Published: 5 August 2013
PDF: 4 pages
Opt. Eng. 52(8) 080502 doi: 10.1117/1.OE.52.8.080502
Published in: Optical Engineering Volume 52, Issue 8
Show Author Affiliations
Yan-Hui Wang, Jilin Univ. (China)
Hai-Feng Cui, Jilin Univ. (China)
Yi-Fan Zhang, Jilin Univ. (China)
Ai-Wu Li, Jilin Univ. (China)


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