Nova Patents
EP1518281B8

Buffer layers for organic electroluminescent devices and methods of manufacture and use

Abstract

Organic electroluminescent device can be formed with multiple layers including an electrode, an emission layer, and a buffer layer. The emission layer includes a light emitting material. The buffer layer is disposed between and in electrical communication with the electrode and the emission layer and includes a triarylamine hole transport material and an electron acceptor material. The buffer layer optionally includes one or more of a) a polymeric binder, b) a color converting material, and c) light scattering particles. The buffer layer can also be formed using a polymeric hole transport material having a plurality of triarylamine moieties.

Term

Term ended

Expired 7 May 2023, 3.4 years ago.

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Every citation, both ways

Citations
DocumentRelationOffice
WO0118888ACitesWorld Intellectual Property Organization (WIPO)
DE19825737ACitesGermany
US5858562ACitesUnited States of America
KIDO J ET AL KIDO J ET AL: "BRIGHT ORGANIC ELECTROLUMINESCENT DEVICES HAVING A METAL-DOPED ELECTRON-INJECTING LAYER BRIGHT ORGANIC ELECTROLUMINESCENT DEVICES HAVING A METAL-DOPED ELECTRON-INJECTING LAYER" APPLIED PHYSICS LETTERS, AMERICAN INSTITUTE OF PHYSICS. NEW YORK, US APPLIED PHYSICS LETTERS, AMERICAN INSTITUTE OF PHYSICS. NEW YORK, US, vol. 73, no. 20, 16 November 1998 (1998-11-16), pages 2866-2868, XP000788585Non-patent–