Research about evaluating the spectrum of WOLED

  • Lu, Lili (School of Opto-Electronic Information , University of Electronic Science and Technology of China) ;
  • Chen, Wenbin (School of Opto-Electronic Information , University of Electronic Science and Technology of China) ;
  • Shao, Wanli (School of Opto-Electronic Information , University of Electronic Science and Technology of China)
  • Published : 2006.08.22

Abstract

White organic LED spectrum for lighting and displaying should be designed for high luminous efficiency as well as good chromaticity coordinate, pleasant correlated color temperature and color rendering. A program based on Matlab was made to make these calculations convenient. The chromaticity coordinate and luminous efficiency was calculated according to the CIE 1931 colorimetric system, while the correlated color temperature(CCT) was calculated based on CIE 1960 UCS diagram. The color rendering characteristics were evaluated according to the CIE Color Rendering Index (CRI), using Ra, Ri and ${\bigtriangleup}E$ from the 14 color samples defined in CIE13.3.

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