Benzimidazolo[1,2-A]benzimidazole carrying aryl- or arylnitril groups for organic light emitting diodes

US10689385B2 · kind B2 · utility

Assignee

• IDEMITSU KOSAN CO., LTD. · JP

Inventors

• Thomas Raimann · Sisseln, CH
• Thomas Schaefer · Liestal, CH
• Masatoshi Saito · Sodegaura, JP
• Heinz Wolleb · Fehren, CH
• Flavio Luiz Benedito · Ludwigshafen, DE
• Yuichi Nishimae · Basel, CH
• Yuki Nakano · Kyoto, JP
• Hideaki Nagashima · Chiba, JP

Key dates

• Filing date: Mar 31, 2016
• Grant date: Jun 23, 2020
• Expiry date: Aug 1, 2036

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E10/549
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Novel benzimidazolo[1,2-a]benzimidazoles carrying aryl- or heteroarylnitril groups, an electronic device, comprising said novel benzimidazolo[1,2-a]benzimidazoles carrying aryl- or heteroarylnitril groups, which is preferably an electroluminescent device, a charge transport layer, a charge/exciton blocker layer, or an emitting layer comprising said novel benzimidazolo[1,2-a]benzimidazoles carrying aryl- or heteroarylnitril groups, an apparatus selected from the group consisting of stationary visual display units; mobile visual display units; illumination units; key-boards; items of clothing; furniture; wallpaper, comprising said organic electronic device, or said charge transport layer, said charge/exciton blocker layer, or said emitting layer.