한국정보디스플레이학회:학술대회논문집

The Korean Infomation Display Society (한국정보디스플레이학회)
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Development of an alignment free mask patterning as a new fabrication method for high efficiency white organic light-emitting diodes

  • Joo, Chul-Woong (Dept. of Polymer Science and Engineering, Dankook University) ;
  • Jeon, Soon-Ok (Dept. of Polymer Science and Engineering, Dankook University) ;
  • Yook, Kyoung-Soo (Dept. of Polymer Science and Engineering, Dankook University) ;
  • Lee, Jun-Yeob (Dept. of Polymer Science and Engineering, Dankook University)
  • Published : 2009.10.12
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Abstract

High efficiency white organic light emitting diodes were fabricated by using an alignment free mask patterning method. Only red/green emission without any blue emission was observed in the red/green patterned region and blue emission was emitted in other area. A combination of the red/green and blue emission gave a high efficiency white emission. A maximum current efficiency of 30.7 cd/A and a current efficiency of 25.9 cd/A at 1000 cd/$m^2$ were obtained with a color coordinate of (0.38, 0.45).

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