Compound, OLED display panel and electronic device

US11623926B2 · kind B2 · utility

Assignee

• WUHAN TIANMA MICROELECTRONICS CO., LTD. SHANGHAI BRANCH · CN

Inventors

• Lei Zhang · Shanghai, CN
• Wei Gao · Shanghai, CN
• Jinghua Niu · Shanghai, CN
• Wenpeng Dai · Shanghai, CN
• Yan Lu · Shanghai, CN
• Yang Li · Beijing, CN
• Ying Liu · Sanjiaodian, TW

Key dates

• Filing date: Dec 31, 2019
• Grant date: Apr 11, 2023
• Expiry date: Apr 13, 2041

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K2102/103
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The present disclosure describes an electroluminescent material which is formed of a compound having a structure of Formula (I), an OLED display panel utilizing the compound and an electronic device having the OLED display panel. The OLED display panel includes a first electrode, a second electrode, and an organic thin film layer disposed between the first electrode and the second electrode. The organic thin film layer comprises an electron transport layer which comprises any one or a combination of at least two of the compounds. The electroluminescent material has a triplet energy level ET of ≥2.7 eV, a HOMO energy level of ≤−5.85 eV, and a glass transition temperature of >120° C. This compound improves luminous efficiency in the OLED display panel and the electronic device.