Tetra-chromatic white phosphorescent organic light-emitting diodes with an external color tuning layer

Chi Sheng Chang*, Po-Tsun Liu, Meng Huan Ho, H. Chen Chin

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

Abstract

A highly efficient white phosphorescent OLED with a "tetra- chromatic" emission was fabricated by using an external color tuning layer (ECTL) which is composed of a layer of greenish yellow organic dye dispersed in PMMA on the outside of the glass. The ECTL combining with a lower red dopant concentration in the device has been found to improve the efficiency of a conventional WOLED by more than 27%.

Original languageEnglish
Pages (from-to)477-480
Number of pages4
JournalProceedings of International Meeting on Information Display
Volume8
StatePublished - 1 Dec 2008
Event8th International Meeting on Information Display - International Display Manufacturing Conference 2008 and Asia Display 2008, IMID/IDMC/ASIA DISPLAY 2008 - Ilsan, Korea, Republic of
Duration: 13 Oct 200817 Oct 2008

Keywords

  • Down conversion
  • External color tuning layer
  • Tetra-chromatic

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