Invention Grant
- Patent Title: Organic electroluminescent materials and devices
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Application No.: US16775578Application Date: 2020-01-29
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Publication No.: US11495754B2Publication Date: 2022-11-08
- Inventor: Jason Brooks , Geza Szigethy , Glenn Morello , Jun Deng , Peter I. Djurovich , Hsiao-Fan Chen
- Applicant: Universal Display Corporation
- Applicant Address: US NJ Ewing
- Assignee: Universal Display Corporation
- Current Assignee: Universal Display Corporation
- Current Assignee Address: US NJ Ewing
- Agency: Duane Morris LLP
- Main IPC: H01L51/54
- IPC: H01L51/54 ; H01L51/00 ; H01L51/50 ; H01L51/52 ; C07F15/00

Abstract:
Imidazophenanthridine ligands and metal complexes are provided. The compounds exhibit improved stability through a linking substitution that links a nitrogen bonded carbon of an imidizole ring to a carbon on the adjacent fused aryl ring. The compounds may be used in OLEDs, particularly as emissive dopants in the emissive region in the OLEDs, providing devices with improved efficiency, stability, and manufacturing. In particular, the compounds provided herein may be used in blue devices having high efficiency.
Public/Granted literature
- US20200185625A1 ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES Public/Granted day:2020-06-11
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