Organic white light emitting devices with an RGB stacked multilayer structure

Hye Yong Chu, Jeong Ik Lee, Lee Mi Do, Taehyoung Zyung, Byung Jun Jung, Hong Ku Shim, Jin Jang

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

White organic light emitting devices (OLEDs) with an RGB stacked multilayer structure are demonstrated. In RGB staked OLEDs, blue emitting 1,4-bis[2, 2-diphenylvinyl]biphenyl (DPVBi), green emitting quinacridane (QD), and red emitting [2,6-bis[2-[5-(dibutylamino)phenyl]vinyl]-4H-pyran-4-ylidene]propanedinitrile (DADB) were used. Through the optimization of the device structure, the pure white light emission with CIE coordinates of (0.33,0.33) at 20 mA/cm 2 was obtained, at which the color temperature and color rendering index were 5560 K and 79, respectively. Its maximum luminance was 14,000 cd/m2 at 12.6 V, and the luminance efficiency was 1.34 lm/W at 100 cd/m2.

Original languageEnglish
Pages (from-to)119-125
Number of pages7
JournalMolecular Crystals and Liquid Crystals
Volume405
DOIs
StatePublished - 2003

Keywords

  • Color rendering index
  • Electroluminescence
  • White organic light emitting device

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