한국정보디스플레이학회:학술대회논문집

The Korean Infomation Display Society (한국정보디스플레이학회)
권호 표지

Fluorescent RGB and White OLEDs with High Performance

  • Jinde, Yukitoshi (EL Development Center, Electronic Materials Department, Idemitsu Kosan Co., Ltd.) ;
  • Tokairin, Hiroshi (EL Development Center, Electronic Materials Department, Idemitsu Kosan Co., Ltd.) ;
  • Arakane, Takashi (EL Development Center, Electronic Materials Department, Idemitsu Kosan Co., Ltd.) ;
  • Funahashi, Masakazu (EL Development Center, Electronic Materials Department, Idemitsu Kosan Co., Ltd.) ;
  • Kuma, Hitoshi (EL Development Center, Electronic Materials Department, Idemitsu Kosan Co., Ltd.) ;
  • Fukuoka, Kenichi (EL Development Center, Electronic Materials Department, Idemitsu Kosan Co., Ltd.) ;
  • Ikeda, Kiyoshi (EL Development Center, Electronic Materials Department, Idemitsu Kosan Co., Ltd.) ;
  • Yamamoto, Hiroshi (EL Development Center, Electronic Materials Department, Idemitsu Kosan Co., Ltd.) ;
  • Hosokawa, Chishio (EL Development Center, Electronic Materials Department, Idemitsu Kosan Co., Ltd.)
  • Published : 2006.08.22
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Abstract

We developed highly efficient fluorescent dopants for full-color OLEDs. For blue, green and red OLEDs, current efficiencies of 8.7cd/A, 20.5 cd/A and 11.4 cd/A at $10mA/cm^2$ were achieved, respectively. Lifetime of the blue device was estimated to be 23,000hours at an initial luminance of $1,000cd/m^2$. Moreover, long lifetime over 100,000 hours was estimated in the green and red devices. Furthermore, we obtained a three-component white OLED by using these new fluorescent materials. This white OLED shows a current efficiency of 16.1cd/A with extrapolated lifetime over 70,000 hours at $1,000cd/m^2$, and more excellent color reproducibility for full-color displays with color filters and general lighting, compared to previous fluorescent white OLEDs.

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