A review of highly reliable flexible encapsulation technologies towards rollable and foldable OLEDs

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As the demand for flexible, rollable, and foldable displays grows, various state-of-the-art component technologies, including thin-film transistors (TFTs), electrodes, thin-film encapsulations (TFEs), and touch screen panels, have been developed based on organic light-emitting diodes (OLEDs) with flexible organic layers. Developing highly reliable flexible OLEDs is essential to realize flexible displays, but the flexible encapsulation technology still has technical difficulties and issues to be addressed. This review covers the recent developments in encapsulation technologies, particularly their material and structural designs, for highly reliable, flexible OLEDs. The solution concepts for the existing technical hurdles in flexible encapsulations are addressed. Among the various advanced flexible encapsulation technologies developed so far, neutral-axis engineering with a thin metal layer and a crack arrester is introduced.
Publisher
TAYLOR & FRANCIS LTD
Issue Date
2020-01
Language
English
Article Type
Review
Citation

JOURNAL OF INFORMATION DISPLAY, v.21, no.1, pp.19 - 32

ISSN
1598-0316
DOI
10.1080/15980316.2019.1688694
URI
http://hdl.handle.net/10203/274187
Appears in Collection
EE-Journal Papers(저널논문)
Files in This Item
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