한국정보디스플레이학회:학술대회논문집

The Korean Infomation Display Society (한국정보디스플레이학회)
권호 표지

Compared electrical and optical characteristics of white organic light-emitting diodes using two complementary and three primary colors

  • Kim, You-Hyun (Dept. of Digital Display Engineering, Hoseo University) ;
  • Choi, Jea-Yoon (Dept. of Digital Display Engineering, Hoseo University) ;
  • Lee, Su-Hwan (Dept. of Digital Display Engineering, Hoseo University) ;
  • Yoon, Hyun-Soo (Dept. of Digital Display Engineering, Hoseo University) ;
  • Seo, Ji-Hoon (Dept. of Information Display, Hongik University, Center for Organic Materials and Information Devices, Hongik University) ;
  • Park, Jung-Hyun (Dept. of Information Display, Hongik University, Center for Organic Materials and Information Devices, Hongik University) ;
  • Kim, Young-Kwan (Dept. of Information Display, Hongik University, Center for Organic Materials and Information Devices, Hongik University) ;
  • Kim, Woo-Young (Dept. of Digital Display Engineering, Hoseo University)
  • Published : 2007.08.27
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Abstract

We fabricated white organic light emitting diodes(WOLED) having two complementary and three primary colors with emission layers of DPVBi / MADN : DCM2-0.5% and DPVBi / $Alq_3$ / MADN : DCM2-1.5%, respectively. WOLED using three primary colors shows broad electroluminescence including green emission peak at 510nm while optical properties of the two complementary WOLED was higher current efficiency of 6.2 cd/A than 4.9 cd/A of three primary color WOLED. The maximum luminescence of WOLED with two complimentary color was $15200cd/m^2$ along with luminous efficiency 6.2cd/A, as achieving stable white color coordinates for both of WOLEDs at (0.33 , 0.33) almost.

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