Effect of Surface Modification of Donor Plate on the Fabrication of OLED Devices by LITI Process

  • Bae, Heung-Kwon (Department of Polymer Science, Kyungpook National University) ;
  • Kim, Jin-Hoo (Department of Polymer Science, Kyungpook National University) ;
  • Kwon, Hyeok-Yong (Department of Sensor and Display Engineering, Kyungpook National University) ;
  • Lee, Yoon-Soo (Advanced Display Manufacturing Research Center, Kyungpook National University) ;
  • Park, Lee-Soon (Department of Polymer Science, Kyungpook National University)
  • Published : 2009.10.12

Abstract

Thermal transfer of emitting layer from the donor film to the substrates depends on the physical interaction between the donor film, the emitting layer, and the hole-transport layer (HTL). The interfacial adhesion between the donor film and the EML, the cohesive force of the EML, and the interfacial adhesion between the EML and the HIL have to be optimized to achieve good LITI pattern quality. It was found that surface pretreatment of the donor plate was important on the laser induced thermal transfer of the emitting layer onto the HIL layer of the OLED devices.

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