OLED device and method of producing an OLED device

US9985239B2 · kind B2 · utility

Assignee

• KONINIKLIJKE PHILIPS N.V. · NL

Inventors

• Manfred Ruske · Ludwigshafen, DE
• Holger Schwab · Ingelfingen, DE
• Herbert Lifka · Eindhoven, NL

Key dates

• Filing date: Oct 22, 2012
• Grant date: May 29, 2018
• Expiry date: Oct 22, 2032

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K2102/3031

Abstract

The invention describes an OLED device (1) comprising an organic layer (3) which emits light (L1) in operation and which is positioned between an essentially transparent anode layer (5) and an essentially opaque cathode layer (7). The cathode layer (7) is deliberately structured along a main extension plane (EP) of the OLED device to comprise at least one cathode region (11, 11a, 11b) in which the cathode layer (7) is 10 present and a plurality of cathode-free regions (13, 13a, 13b) and/or at least one cathode-free region (13, 13a, 13b) of a larger extension, through which cathode-free regions and/or region (13, 13a, 13b) visible light (L2) can pass in the direction of a cross extension (CE) of the OLED device. The invention also describes a production method of such OLED device (1).