
Proceedings Paper
Organic light-emitting diode (OLED) and its application to lighting devicesFormat | Member Price | Non-Member Price |
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Paper Abstract
Organic Light Emitting Diode (OLED) is an emerging technology as one of the strong candidates for next generation
solid state lighting with various advantages such as thin flat shape, no UV emission and environmental benefits. At
this moment, OLED still has a lot of issues to be solved before widely used as lighting devices. Nonetheless, typical
properties of OLED, such as efficiency and lifetime, have been recently made great progress. For example, a green
phosphorescent OLED with over 100 lm/W and a red fluorescent OLED with an estimated half decay time of over
100,000 h at 1,000 cd/m2 were reported. Large area, white OLEDs with long lifetime were also demonstrated. In this
way, some of the issues are going to be steadily overcome. In this publication, we will present a phosphorescent white
OLED with a high luminous efficiency of 46 lm/W and an external quantum efficiency of 20.6 percent observed at 100
cd/m2. This device achieves a luminous efficiency of 62.8 lm/W with a light-outcoupling film attached on the glass
substrate. This is one of the highest values so far reported for white OLEDs. And we will also show a color-tunable
stacked OLED with improved emission characteristics. This device minimizes a viewing angle dependence of the
emission spectra and has color tunability from white to reddish-white. These technologies will be applied to OLED
lighting.
Paper Details
Date Published: 5 December 2006
PDF: 10 pages
Proc. SPIE 6333, Organic Light Emitting Materials and Devices X, 63330M (5 December 2006); doi: 10.1117/12.683215
Published in SPIE Proceedings Vol. 6333:
Organic Light Emitting Materials and Devices X
Zakya H. Kafafi; Franky So, Editor(s)
PDF: 10 pages
Proc. SPIE 6333, Organic Light Emitting Materials and Devices X, 63330M (5 December 2006); doi: 10.1117/12.683215
Show Author Affiliations
Nobuhiro Ide, Matsushita Electric Works, Ltd. (Japan)
Optoelectronic Industry and Technology Development Association (Japan)
Takuya Komoda, Matsushita Electric Works, Ltd. (Japan)
Optoelectronic Industry and Technology Development Association (Japan)
Optoelectronic Industry and Technology Development Association (Japan)
Takuya Komoda, Matsushita Electric Works, Ltd. (Japan)
Optoelectronic Industry and Technology Development Association (Japan)
Junji Kido, Optoelectronic Industry and Technology Development Association (Japan)
Yamagata Univ. (Japan)
Yamagata Univ. (Japan)
Published in SPIE Proceedings Vol. 6333:
Organic Light Emitting Materials and Devices X
Zakya H. Kafafi; Franky So, Editor(s)
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