Structuring of OLEDs using stack modification layer comprising perfluorinated vacuum grease and/or perfluorinated vacuum pump oil

US9196874B2 · kind B2 · utility

Assignee

• KONINIKLIJKE PHILIPS N.V. · NL

Inventors

• Herbert Friedrich Boerner · Aachen, DE
• Helga Hummel · Aachen, DE

Key dates

• Filing date: Oct 24, 2012
• Grant date: Nov 24, 2015
• Expiry date: Oct 24, 2032

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K71/851

Abstract

The invention relates to a method for manufacturing structured organic electroluminescent light-emitting devices (OLEDs) comprising light-emitting and non-emitting areas and to OLEDs manufactured according to this method comprising the steps of: Providing (P) a substrate (2) covered at least locally with at least one conductive layer as the first electrode (3); Depositing (D-SML) a stack modification layer (4) locally on top of the first electrode (3) to establish first areas (31) covered with the stack modification layer (4) and non-covered second areas (32) adjacent to the first areas (31) forming the desired structured pattern; —Depositing (D-OLS) the organic layer stack (5) comprising at least one organic light-emitting layer (51) on top of the first electrode (3) locally coated with the stack modification layer (4) providing an organic layer stack (5) being separated from the first electrode (3) by the stack modification layer (4) in between the organic layer stack (5) and the first electrode (3) in the first areas (31) and being in direct electrical contract to the first electrode (3) in the second areas (32); and Depositing (D-SE) a conductive metal layer as the second elect…