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Proceedings Paper

Increasing OLED output light efficiency via holography
Author(s): Han-Tsung Hsueh; Chen Chang; Min-Wen Chang; Hua-Kuang Liu
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Paper Abstract

Following a brief review of OLED structures and emission models, we have proposed a phase holographic method to modify both sides of the substrate of an OLED to increase its output light emission efficiency. The holograms are designed with special masks simulating the emission layer of the OLED. A single source macroscopic phase holographic experiment is used to illustrate the idea. Limitations on diffraction efficiency due to the dynamic density and position variations of the excitons and near-field subwavelength wave propagation phenomena in a real OLED device have been discussed.

Paper Details

Date Published: 10 November 2004
PDF: 12 pages
Proc. SPIE 5519, Organic Light-Emitting Materials and Devices VIII, (10 November 2004); doi: 10.1117/12.562125
Show Author Affiliations
Han-Tsung Hsueh, National Taiwan Univ. (Taiwan)
Chen Chang, Yuan Ze Univ. (Taiwan)
Min-Wen Chang, Yuan Ze Univ. (Taiwan)
Hua-Kuang Liu, Tung Nan Institute of Technology (Taiwan)

Published in SPIE Proceedings Vol. 5519:
Organic Light-Emitting Materials and Devices VIII
Zakya H. Kafafi; Paul A. Lane, Editor(s)

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