Patent number: 11711969
Abstract: A novel compound is disclosed which includes a ligand LA of Formula II, wherein: ring B is independently a 5-membered or 6-membered carbocyclic or heterocyclic ring; X1 to X4 are each independently selected from the group consisting of C, N, and CR; at least one pair of adjacent X1 to X4 are each C and fused to Formula V where indicated by “”; X5 to X12 are each independently C or N; the maximum number of N within a ring is two; Z and Y are each independently selected from the group consisting of O, S, Se, NR?, CR?R?, SiR?R?, and GeR?R?; RB and RC each independently represents zero, mono, or up to a maximum allowed substitutions to its associated ring; each of RB, RC, R, R?, and R? is independently hydrogen or a substituent selected from the group consisting of deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carboxylic acid, ether, ester, nitrile, isonitrile, su
Type:
Grant
Filed:
June 9, 2021
Date of Patent:
July 25, 2023
Assignee:
Universal Display Corporation
Inventors:
Pierre-Luc T. Boudreault, Bert Alleyne, Zhiqiang Ji
Patent number: 11697661
Abstract: A compound having the formula Ir(LA)n(LB)3?n, having the structure Formula I, is disclosed. In Formula I, each of Z1, Z2, Z3, and Z4 is CR2; X is O, S, or Se; n is an integer from 1 to 3; R1, R2, R3, R4, and R5 each independently represent mono- to a maximum possible number of substitutions, or no substitution; R1, R2, R3, R4, and R5 are each independently selected from a variety of substituents; any two substitutions in R1, R2, R3, R4, and R5 are optionally joined to form a ring; at least one pair of substitutions in R1, R2, R3, R4, and R5 are joined together to form a bridge structure comprising a backbone structure that forms a fused first ring, which can be further substituted; and the backbone structure is saturated. Organic light emitting devices and consumer products containing the compounds are also disclosed.
Type:
Grant
Filed:
September 24, 2020
Date of Patent:
July 11, 2023
Assignee:
Universal Display Corporation
Inventors:
Lichang Zeng, Zhiqiang Ji, Eric A. Margulies, Paul M. Lahti, Michael S. Weaver
Publication number: 20230192738
Abstract: A compound comprising a first ligand LA comprising a structure of Formula I, is provided. In Formula I, moieties A, B, C, and D are each independently a monocyclic ring or a multicyclic fused ring system; each of X1 to X8 is C or N; each independently represents a single bond or a double bond; each of L1, L2, L3, and L4 is independently a direct bond or a linking group; each R, R?, R?, RA, RB, RC, and RD is a hydrogen or a General Substituent; any two adjacent R, R?, R?, RA, RB, RC, and RD may be joined or fused to form a ring; and LA is coordinated to a transition metal M. Formulations, OLEDs, and consumer products containing the compound are also provided.
Type:
Application
Filed:
December 6, 2022
Publication date:
June 22, 2023
Applicant:
UNIVERSAL DISPLAY CORPORATION
Inventors:
Neil PALMER, Wei-Chun SHIH, Derek Ian WOZNIAK, Zhiqiang JI, Morgan C. MACINNIS, Hsiao-Fan CHEN, Peter WOLOHAN, George FITZGERALD, Elena SHEINA, Noah HORWITZ, Pierre-Luc T. BOUDREAULT, Chun LIN, Rasha HAMZE, Tyler FLEETHAM
Publication number: 20230140064
Abstract: A compound having a structure of Formula I, is provided. In Formula I, each of moieties B, C, and D is a ring or multicyclic ring system; each of X1, X2, X3, X4, X5, Y1, Z1, Z2, Z3, Z4, and Z5 is C or N; each of K1, K2, and K3 is a direct bond, O, or S; L1 and L2 are independently direct bonds or bivalent linking groups; each R, R?, RA, RB, RC, and RD is independently hydrogen or a substituent; any two substituents may be joined or fused together to form a ring; and at least one pair of RB, RC, or RD are joined to form a 5-membered heterocyclic ring. Formulations, OLEDs, and consumer products containing the compound are also provided.
Type:
Application
Filed:
September 27, 2022
Publication date:
May 4, 2023
Applicant:
Universal Display Corporation
Inventors:
Alexey Borisovich DYATKIN, Elena SHEINA, Wei-Chun SHIH, Pierre-Luc T. BOUDREAULT, Jui-Yi TSAI, Zhiqiang JI