Publication number: 20240059715
Abstract: Provided are compounds comprising a first chemical moiety, wherein the first chemical moiety comprises a first heterocyclic ring or a polycyclic fused ring system comprising at least one of the first heterocyclic ring; wherein the first heterocyclic ring comprises at least one Si or Ge atom as the ring atom; wherein in the polycyclic fused ring system, the at least one of the first heterocyclic ring has at most one bond being part of an aromatic ring; wherein the compound further comprises a second chemical moiety; wherein the second chemical moiety is selected from the group consisting of triphenylene, tetraphenylene, carbazole, dibenzothiophene, dibenzofuran, dibenzoselenophene, dibenzofluorene, benzo[d]benzo[4,5]imidazo[1,2-a]imidazole (bimbim), indolocarbazole, indolodibenzothiophene, indolodibenzofuran, indodibenzoselenophene, indolodibenzofluorene, naphthalene, germyl, boryl, amino, pyridine, pyridazine, pyrimidine, pyrazine, triazine, imidazole, benzimidazole, and aza variants thereof; and wherein the
Type:
Application
Filed:
July 6, 2023
Publication date:
February 22, 2024
Applicant:
Universal Display Corporation
Inventors:
Rasha HAMZE, Tyler Fleetham, Hsiao-Fan CHEN, Chun LIN, Elena Sheina
Publication number: 20240057470
Abstract: A compound having a formula of M(LA)p(LB)q(LC)r, where LA has a structure of Formula I, LB is a bidentate ligand; and LC has a structure of Formula II, is provided. In Formula I and Formula II, the compound can be homoleptic or heteroleptic and can include up to three different ligands; K3 and K4 are each independently a direct bond, O, S, N(R?), P(R?), B(R?), C(R?)(R?), or Si(R?)(R?); each of moiety A and moiety B represents a monocyclic ring or a polycyclic, fused-ring structure; each of Z1 and Z2 is C or N; and at least one of RA, RB, RC1, RC2, or RC3 comprises a structure of Formula III, In Formula III, L is bivalent organic linker, and Z is Si or Ge. Each RA, RB, RC1, RC2, and RC3 is independently hydrogen or a General Substituent, and each of R1, R2, and R3 is a General Substituent. Formulations, OLEDs, and consumer products including such compounds are also provided.
Type:
Application
Filed:
November 11, 2022
Publication date:
February 15, 2024
Applicant:
Universal Display Corporation
Inventors:
Alexey Borisovich DYATKIN, Jui-Yi TSAI, Pierre-Luc T. BOUDREAULT, Walter YEAGER, Hsiao-Fan CHEN, Zhiqiang JI
Publication number: 20240043461
Abstract: A compound having a structure of Formula I, is provided. In Formula I, M is Pt or Pd; rings A, B, C, and D are 5-membered or 6-membered rings; one of Z1, Z2, and Z3 is N and the other two are C; each of X1 to X10 is C or N; K is a direct bond, O, S, N(R?), P(R?), B(R?), C(R?)(R?), or Si(R?)(R?); each of L1 and L2 is a direct bond or a linker; each R, R?, R?, R?, R?, RA, RB, RC, RD, and RE is hydrogen or a General Substituent; R1 is a substituent; at least one RE comprises a substituent selected from the group consisting of aryl, heteroaryl, cycloalkyl, and heteroalkyl; any two substituents may be joined or fused to form a ring, except that RE at X3 or X4 cannot be joined with RA to from a ring. Formulations, OLEDs, and consumer products including the compound are also provided.
Type:
Application
Filed:
June 26, 2023
Publication date:
February 8, 2024
Applicant:
Universal Display Corporation
Inventors:
Hsiao-Fan CHEN, Rasha HAMZE