High-temperature thin-film barriers for foldable AMOLED displays

Hylke B. Akkerman, Raghu K. Pendyala, Pradeep Panditha, Ahmed Salem, Jie Shen, Peter van de Weijer, Piet C.P. Bouten, Suzanne H.P.M. de Winter, Karin van Diesen-Tempelaars, Gerard de Haas, Soeren Steudel, Ching Yu Huang, Ming Hsiang Lai, Yen Yu Huang, Ming Hua Yeh, Auke Jisk Kronemeijer, Paul Poodt, Gerwin H. Gelinck

Research output: Contribution to journalArticleAcademicpeer-review

5 Citations (Scopus)


We present a thin-film dual-layer bottom barrier on polyimide that is compatible with 350°C backplane processing for organic light-emitting diode displays and that can facilitate foldable active-matrix organic light-emitting diode devices with a bending radius of <2 mm. We demonstrate organic light-emitting diodes that survive bending over 0.5 mm radius for 10.000× based on the high-temperature bottom barrier. Furthermore, we show compatibility of the bottom barrier with the backplane process by fabricating active-matrix organic light-emitting diode displays on GEN1-sized substrates.

Original languageEnglish
Pages (from-to)214-222
Number of pages9
JournalJournal of the Society for Information Display
Issue number4
Publication statusPublished - 1 Apr 2018


  • AMOLED displays
  • foldable
  • high temperature
  • thin-film barrier


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