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Optical Model for Novel Glass-Based Phosphor-Converted White Light-Emitting Diodes

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7 Author(s)
Li-Yin Chen ; Department of Photonics, National Sun Yat-sen University, Kaohsiung, Taiwan ; Jin-Kai Chang ; Yi-Ru Wu ; Wei-Chih Cheng
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We proposed an optical model for phosphor-converted white LEDs (pc-WLEDs) that utilized Ce:YAG doped glasses as novel phosphor-converted materials. In this model, precise simulation of the chromatic performance of the glass-based pc-WLEDs was conducted. Between optical simulation and experimental measurement, the color difference ΔE was 1.2%. Meanwhile, the difference of correlated color temperature limited from 1 wt% to 5 wt% phosphor concentration between the simulation and measurement was 184 K. Such a model for glass phosphors will be helpful to design high-power glass-based pc-WLEDs.

Published in:

Journal of Display Technology  (Volume:9 ,  Issue: 6 )