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Proceedings Paper

High-performance OLEDs and their application to lighting
Author(s): Nobuhiro Ide; Hiroya Tsuji; Norihiro Ito; Hiroyuki Sasaki; Taisuke Nishimori; Yoshikazu Kuzuoka; Koki Fujihara; Takao Miyai; Takuya Komoda
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Paper Abstract

Organic light emitting diodes (OLED) are expected to be used in next generation solid state lighting sources serving as an alternative to conventional incandescent bulbs and fluorescent lamps. OLEDs will provide the environmental benefits of possible considerable energy savings and elimination of mercury, as well as some other advantages such as thin flat shape, planar emission, and no UV emission. Recently, important properties of OLEDs such as efficiency and lifetime have been greatly improved. Additionally, for lighting applications, a high color rendering index (CRI) at the desired CIE chromaticity coordinates, high luminance and large area uniform emission, and high stability over long time operation are also required. In this paper, we describe the development and performance of our high CRI OLEDs: the conventional OLED with multiple emissive layers and the multi-unit OLED with only two emissive units (a fluorescent blue emissive unit and a phosphorescent green / red emissive unit). Related technologies for OLED lighting to obtain uniform emission at high luminance in large areas are also described.

Paper Details

Date Published: 2 September 2008
PDF: 10 pages
Proc. SPIE 7051, Organic Light Emitting Materials and Devices XII, 705119 (2 September 2008); doi: 10.1117/12.798190
Show Author Affiliations
Nobuhiro Ide, Matsushita Electric Works, Ltd. (Japan)
Hiroya Tsuji, Matsushita Electric Works, Ltd. (Japan)
Norihiro Ito, Matsushita Electric Works, Ltd. (Japan)
Hiroyuki Sasaki, Matsushita Electric Works, Ltd. (Japan)
Taisuke Nishimori, Matsushita Electric Works, Ltd. (Japan)
Yoshikazu Kuzuoka, Matsushita Electric Works, Ltd. (Japan)
Koki Fujihara, Matsushita Electric Works, Ltd. (Japan)
Takao Miyai, Matsushita Electric Works, Ltd. (Japan)
Takuya Komoda, Matsushita Electric Works, Ltd. (Japan)

Published in SPIE Proceedings Vol. 7051:
Organic Light Emitting Materials and Devices XII
Franky So; Chihaya Adachi, Editor(s)

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