한국정보디스플레이학회:학술대회논문집

The Korean Infomation Display Society (한국정보디스플레이학회)
권호 표지

Device Characteristics of white OLED using the fluorescent and phosphorescent materials coupled with interlayer

  • Lee, Young-Hoon (Center for Advanced Energy Materials, Korea Institute of Science and Technology, Display and Nanosystem Laboratory, College of Engineering, Korea University) ;
  • Kim, Jai-Kyeong (Center for Advanced Energy Materials, Korea Institute of Science and Technology) ;
  • Yoo, Jai-Woong (Center for Advanced Energy Materials, Korea Institute of Science and Technology) ;
  • Ju, Byeong-Kwon (Display and Nanosystem Laboratory, College of Engineering, Korea University) ;
  • Kwon, Jang-Hyuk (Advanced Display Research Center and Department of Information Display, Kyung Hee University) ;
  • Jeon, Woo-Sik (Advanced Display Research Center and Department of Information Display, Kyung Hee University) ;
  • Chin, Byung-Doo (Center for Advanced Energy Materials, Korea Institute of Science and Technology)
  • Published : 2007.08.27
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Abstract

We fabricated white organic light emitting device (WOLED) with the layered fluorescent blue material and phosphorescent green/red dye-doped materials. Addition of the non-doped phosphorescent host material between the fluorescent and phosphorescent light emitting layers provided the result of broadband white spectrum, with improved balance, higher efficiency, and lower power consumption. In our devices, there was no need of exciton-blocking layer between the each emission layer for the further confinement of the diffusion of excitons.

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