Optical model for novel glass-based phosphor-converted white light-emitting diodes

Li Yin Chen, Jin Kai Chang, Yi Ru Wu, Wei Chih Cheng, Ji Hung Chen, Chun Chin Tsai, Wood Hi Cheng

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

Abstract

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 Δ E 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.

Original languageEnglish
Article number6422328
Pages (from-to)441-446
Number of pages6
JournalIEEE/OSA Journal of Display Technology
Volume9
Issue number6
DOIs
StatePublished - 2013

Keywords

  • glass phosphor
  • Light-emitting diodes (LEDs)
  • optical modeling
  • phosphor-converted LEDs (pc-LEDs)

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