Benzo diheterocyclic compound, display panel, and display device containing the benzo diheterocyclic compound

US11264590B2 · kind B2 · utility

Assignee

• WUHAN TIANMA MICROELECTRONICS CO., LTD. · CN

Inventors

• Wei Gao · Shanghai, CN
• Lei Zhang · Shanghai, CN
• Qing-Man Zhu · Kunshan, CN
• Jinghua Niu · Shanghai, CN
• Ping An · Shanghai, CN
• Gaojun Huang · 红钢城街道, CN

Key dates

• Filing date: Jan 9, 2019
• Grant date: Mar 1, 2022
• Expiry date: Jun 15, 2040

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K2102/351
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The present disclosure provides a benzo diheterocyclic compound having a structure represented by Formula (I). In Formula (I), Y1 and Y2 are oxygen or sulfur; Ar1 and Ar2 are each independently selected from a group consisting of single bond, a substituted or unsubstituted phenyl, a substituted or unsubstituted naphthyl, a substituted or unsubstituted anthracyl, a substituted or unsubstituted phenanthryl, a substituted or unsubstituted acenaphthylenyl, and a substituted or unsubstituted aromatic heterocyclic group; m and n are integers independently selected from 0 and 1; D1 and D2 are aryl or heteroaryl, Ar3 and Ar4 are aryl or heteroaryl, and R1 is hydrogen, phenyl, or naphthyl. When the benzo diheterocyclic compound is used as a capping layer of a cathode, it will not interfere light emission of an OLED, and the OLED can maintain a high color purity.