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10 November 2004 Increasing OLED output light efficiency via holography
Han-Tsung Hsueh, Chen Chang, Min-Wen Chang, Hua-Kuang Liu
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Proceedings Volume 5519, Organic Light-Emitting Materials and Devices VIII; (2004) https://doi.org/10.1117/12.562125
Event: Optical Science and Technology, the SPIE 49th Annual Meeting, 2004, Denver, Colorado, United States
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.
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Han-Tsung Hsueh, Chen Chang, Min-Wen Chang, and Hua-Kuang Liu "Increasing OLED output light efficiency via holography", Proc. SPIE 5519, Organic Light-Emitting Materials and Devices VIII, (10 November 2004); https://doi.org/10.1117/12.562125
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KEYWORDS
Organic light emitting diodes
Holograms
Holography
OLED lighting
Diffraction
Spherical lenses
Wave propagation
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