Patent number: 9502672
Abstract: A phenazasiline comprising compound, and devices and formulations including the same are described. The compound includes a ligand L1 including: wherein E1 is N, E2 is Si, and R4 and R5 represent mono, di, tri, tetra substitutions or no substitution; wherein R1, R2, R3, R4, and R5 are each 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, and any two adjacent R1, R2, R3, R4, and R5, are optionally joined to form a ring, which may be further substituted. In Formula I, L1 is coordinated to metal M, which has an atomic weight higher than 40, provided that the metal M does not form bond with E1 and E2. L1 may be linked with other ligands.
Type:
Grant
Filed:
March 13, 2013
Date of Patent:
November 22, 2016
Assignee:
UNIVERSAL DISPLAY CORPORATION
Inventors:
Chun Lin, Chuanjun Xia, Gregg Kottas, Zeinab Elshenawy
Publication number: 20160285014
Abstract: A compound having a Pt tetradentate structure of Formula I, is disclosed. In Formula I, rings A, B, and C each independently represent a 5- or 6-membered carbocyclic or heterocyclic ring; L1, L2, and L3 are each independently selected from the group consisting of a direct bond, BR, NR, PR, O, S, Se, C?O, S?O, SO2, SiRR?, GeRR?, alkyl, cycloalkyl, aryl, heteroaryl, and combinations thereof; X1, X2, and X3 are either carbon or nitrogen; X is O, S, or Se; R1, R2, R3, RA, RB, RC, R, and R? are each independently selected from H and a variety of substituents; and any adjacent R1, R2, R3, RA, RB, RC, R, and R? are optionally joined to form a ring. Formulations and devices, such as OLEDs, that include the compound of Formula I are also described.
Type:
Application
Filed:
March 23, 2015
Publication date:
September 29, 2016
Applicant:
UNIVERSAL DISPLAY CORPORATION
Inventors:
Gregg KOTTAS, Zeinab ELSHENAWY, Geza SZIGETHY, Chuanjun XIA