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Proceedings Paper

The profiling of planar illuminative patterns using multiple white organic light-emitting diodes
Author(s): Henglong Yang; Lih-Jeih Chen; Yu-Hen Cheng; Wen-Cheng Chang
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Paper Abstract

The feasibility of applying multiple white organic light-emitting diodes (WOLED) to establish specific planar illuminative patterns for general lighting without secondary optical components was experimentally investigated in smaller scale by using a single-axis automatic optical measuring system. Regular white light-emitting diodes (WLED) usually require secondary optical components to transform its point-source optical characteristics into specific planar illuminative pattern for general lighting application. WOLED has become a potential planar lighting source due to its unique device structure. The lighting source in our experiment consists of three WOLED's mounted side-by-side with changeable tilting angle. This adjustable lighting source with three planar WOLED's may be feasible for forming required illuminative pattern without using secondary optical components. Our preliminary experimental result measured from a 3-WOLED source with specific tilting angle in smaller scale suggests that a relatively uniform illuminative area can be established in practical mean without secondary optical components.

Paper Details

Date Published: 8 October 2014
PDF: 6 pages
Proc. SPIE 9183, Organic Light Emitting Materials and Devices XVIII, 91831P (8 October 2014); doi: 10.1117/12.2060623
Show Author Affiliations
Henglong Yang, National Taipei Univ. of Technology (Taiwan)
Lih-Jeih Chen, National Taipei Univ. of Technology (Taiwan)
Yu-Hen Cheng, National Taipei Univ. of Technology (Taiwan)
Wen-Cheng Chang, National Taipei Univ. of Technology (Taiwan)


Published in SPIE Proceedings Vol. 9183:
Organic Light Emitting Materials and Devices XVIII
Franky So; Chihaya Adachi, Editor(s)

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