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Effect of contaminant particles on folding of encapsulating organic-inorganic multilayer for foldable OLEDs

  • Sungkyunkwan University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The effect of contaminant particles on the folding of encapsulating organic-inorganic multilayer was investigat ed. The stability of the organic-inorganic multilayer thin fil ms was evaluated when they were folded inward or outw ard in 1 mm radius according to the size of the contamina nt particles and the thickness of the multilayer thin films. It was confirmed that the organic- inorganic multilayer films deposited by the atomic layer deposition and plasma-enh anced chemical vapor deposition methods completely cov ers the contaminant particles regardless of the size of the particles. However, due to the angle of curvature in the res ulting encapsulation structure caused by the presence of t he contaminant particles, higher stress is generated arou nd the particles and the cracking due to folding is more e asily occurred. In this study, we proposed the stability crit eria for the thickness of encapsulation layer upon folding even in the presence of contaminant particles.

Original languageEnglish
Title of host publication26th International Display Workshops, IDW 2019
PublisherInternational Display Workshops
Pages1623-1626
Number of pages4
ISBN (Electronic)9781713806301
StatePublished - 2019
Event26th International Display Workshops, IDW 2019 - Sapporo, Japan
Duration: 27 Nov 201929 Nov 2019

Publication series

NameProceedings of the International Display Workshops
Volume3
ISSN (Print)1883-2490

Conference

Conference26th International Display Workshops, IDW 2019
Country/TerritoryJapan
CitySapporo
Period27/11/1929/11/19

Keywords

  • Folding
  • Particle
  • Thin film encapsulation

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