1 January 2011 Sunlight-style organic light-emitting diodes
Author Affiliations +
Abstract
We demonstrate organic light-emitting diodes (OLEDs) capable of yielding sunlight-style illumination with various daylight chromaticities, whose color temperature (CT) covers those of the daylight at different times and regions. Besides having the disruptive characters like being plane-type and luminaire-ready, flexible, printable, thin, and light, the emissive spectrum of OLEDs closely resembles that of sunlight. The degree of sunlight spectrum resemblance is 63%, for example, for one high color rendering OLED, while 2% for a sodium lamp, 16% for a fluorescent tube, 49% for a light-emitting diode, and 72% for an incandescent bulb. By incorporating one hole-modulating layer (HML), a fluorescent sunlight-style OLED yields CT between 2300 and 7900 K, while the CT span can be further expanded between 2400 and 18000 K by using double HMLs. For a phosphorescent sunlight-style OLED, the CT spans between 1900 and 3100 K with a power efficiency of 17.6 lm/W at 1000 cd/m2.
© 2011 Society of Photo-Optical Instrumentation Engineers (SPIE)
Jwo-Huei Jou, Jwo-Huei Jou, Shih-Ming Shen, Shih-Ming Shen, Ming-Hsuan Wu, Ming-Hsuan Wu, Shiang-Hau Peng, Shiang-Hau Peng, Hsi-Ching Wang, Hsi-Ching Wang, } "Sunlight-style organic light-emitting diodes," Journal of Photonics for Energy 1(1), 011021 (1 January 2011). https://doi.org/10.1117/1.3583640 . Submission:
JOURNAL ARTICLE
8 PAGES


SHARE
RELATED CONTENT

Far-field condition for OLED light sources
Proceedings of SPIE (September 17 2013)
LED light source used in cultural relic illumination
Proceedings of SPIE (September 16 2002)
Is solid state the future of lighting?
Proceedings of SPIE (January 25 2004)
Refrigerated display case lighting with LEDs
Proceedings of SPIE (November 25 2002)

Back to Top