A study on the simplified fabrication structure for the multi-color OLED display

  • Baek, H.I. (School of electrical engineering and computer science, Seoul National University) ;
  • Kwon, D.S. (School of electrical engineering and computer science, Seoul National University) ;
  • Lee, C.H. (School of electrical engineering and computer science, Seoul National University)
  • Published : 2006.08.22

Abstract

We proposed a simplified fabrication structure and method which can provide separate Red (R), Green (G), Blue (B), and White (W) OLED pixels with 2 metal-mask changes in emitting layer fabrication inspired from the structure of multi-layer white OLED and carrier blocking mechanism. A red emission layer for the R and W pixel with 1st mask, and then a blue emission layer with hole blocking layer for the B and W pixel with 2nd mask, and finally a common green emission layer were deposited sequentially. We expect that this concept would be very useful to the actual fabrication of multi-color OLED display although additional optimization is needed.

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