Invention Grant
- Patent Title: Organic electroluminescent materials and devices
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Application No.: US14268873Application Date: 2014-05-02
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Publication No.: US10457699B2Publication Date: 2019-10-29
- Inventor: Pierre-Luc T. Boudreault , Vadim Adamovich , Hitoshi Yamamoto , Harvey Wendt , Chuanjun Xia
- 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: H01L51/50
- IPC: H01L51/50 ; C07F15/00 ; H01L51/00 ; C09K11/06 ; C07D491/048 ; H01L51/52

Abstract:
A compound that has the structure according to Formula M(LA)x(LB)y(LC)z: wherein ligand LA is ligand LB is and ligand LC is and devices and formulations containing these compounds are disclosed. In Formula M(LA)x(LB)y(LC)z: M is a metal having an atomic number greater than 40; x is 1 or 2; x+y+z is the oxidation state of the metal M; X1-X4 and A1-A8 are C or N; at least one of A1-A8 is N; X is O, S, or Se; two adjacent RB form a six-member aromatic ring E fused to ring B; wherein ring E can be substituted by RE; each RA-RE and R1-R4 is independently selected from the group consisting of hydrogen, deuterium, halide, alkyl, cycloalkyl, heteroalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carbonyl, carboxylic acids, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof.
Public/Granted literature
- US20150315222A1 ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES Public/Granted day:2015-11-05
Information query
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