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  4. Optimization of screen printing processes for OLED substrate patterning
 
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2013
Conference Paper
Titel

Optimization of screen printing processes for OLED substrate patterning

Abstract
The current standard for OLED substrate patterning is photolithography [1, 2]. This relatively expensive method allows very little structural resolution, but this is not necessary for OLED lighting [3]. One way to reduce the production cost of OLED substrates are alternative patterning methods, such as laser ablation and screen printing processes developed by Fraunhofer COMEDD [4]. This paper focuses onto the optimization and further development of these substrate patterning technologies on glasses and polymer films in sheet-to-sheet processes. For this, alternatives to the currently used printing pastes are examined in order to eliminate problems with residues of the printing paste at the active area, solvent residues and the large roughness of the printed layers. The goal of this optimization is a significant improvement of the substrate quality for subsequent deposition technology and a corresponding increase in the yield of flawless OLEDs.
Author(s)
Philipp, André
Fraunhofer-Einrichtung fĂ¼r Organik, Materialien und Elektronische Bauelemente COMEDD
Hild, Olaf RĂ¼diger
Fraunhofer-Einrichtung fĂ¼r Organik, Materialien und Elektronische Bauelemente COMEDD
Leo, Karl
Fraunhofer-Einrichtung fĂ¼r Organik, Materialien und Elektronische Bauelemente COMEDD
Baumann, Reinhard R.
Chemnitz University of Technology
Hauptwerk
Printing Future Days 2013. 5th International Scientific Conference on Print and Media Technology. Proceedings
Konferenz
Printing Future Days 2013
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Language
English
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COMEDD
Fraunhofer-Institut fĂ¼r Photonische Mikrosysteme IPMS
Tags
  • OLED

  • screen printing

  • substrate patterning

  • substrate characteriz...

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