Title :
Photobiologically Safe High Color Rendering Index White Organic Light-Emitting Devices
Author :
Wei Zhang ; Xuemei Wen ; Jing Yu ; Wenbo Liu ; Wenfa Xie ; Letian Zhang
Author_Institution :
State Key Lab. on Integrated Optoelectron., Jilin Univ., Changchun, China
Abstract :
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 R9 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/m2, which is proved to be safe for our eyes and could be applied to indoor illumination.
Keywords :
colour; organic light emitting diodes; active layer thickness; blue light hazard; correlated color temperature; high color rendering index white organic light-emitting devices; photobiologically safe white organic light-emitting devices; power efficiency; Cathodes; Color; Excitons; Hazards; Indexes; Materials; Rendering (computer graphics); Organic light-emitting device; color rendering index;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2014.2326854
