Photobiologically Safe High Color Rendering Index White Organic Light-Emitting Devices

Photobiologically Safe High Color Rendering Index White Organic Light-Emitting Devices

A high color rendering index (CRI) white organic light-emitting devices with photobiological safety is demonstrated. The effect of the active layer thickness on CRI and blue light hazard is demonstrated. The optimized device shows a high general CRI of 97, a special CRI R 9 of 94, and a power effici...

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Veröffentlicht in:IEEE photonics technology letters 2014-09, Vol.26 (17), p.1691-1694
Hauptverfasser: Zhang, Wei, Wen, Xuemei, Yu, Jing, Liu, Wenbo, Xie, Wenfa, Zhang, Letian
Format: Artikel
Sprache:eng
Schlagworte:
Cathodes
Color
Devices
Excitons
Eyes
Hazards
Illumination
Indexes
Indoor
Materials
Organic light emitting diodes
Power efficiency
Rendering
Rendering (computer graphics)
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Zusammenfassung:A high color rendering index (CRI) white organic light-emitting devices with photobiological safety is demonstrated. The effect of the active layer thickness on CRI and blue light hazard is demonstrated. The optimized device shows a high general CRI of 97, a special CRI R 9 of 94, and a power efficiency of 15.2 lm/W. The correlated color temperature is 2161. The device could be classified into low risk group at ~2000 cd/m 2 , which is proved to be safe for our eyes and could be applied to indoor illumination.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2014.2326854