Patents by Inventor Tongxiang Lu

Tongxiang Lu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 12369487
    Abstract: A compound comprising a ligand LA of Formula I, where G has a structure of is disclosed. In ligand LA, Ring C is a 5-membered or 6-membered ring; K is a direct bond, O, or S; when K is O or S, X6 is C; each of RA, RB, and RC is H or a substituent, and can be joined together to form a ring; each of X1 to X6 is independently C or N; X1 is C if it is connected to ring C; the RB substituents of at least two adjacent ones of X2 to X5 are joined to form a ring; and the ligand LA is complexed to Ir through the two indicated dash lines to form a 5-membered chelate ring. Organic light emitting devices, consumer products, formulations, and chemical structures containing the compounds are also disclosed.
    Type: Grant
    Filed: July 16, 2021
    Date of Patent: July 22, 2025
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Tongxiang Lu, Zhiqiang Ji, George Fitzgerald, Pierre-Luc T. Boudreault, Jui-Yi Tsai
  • Publication number: 20250221296
    Abstract: The present disclosure provides compound having a first ligand LA, including those comprising a structure of Formula A, In the compound, each of X1P to X6P is C, N, or B, where at least one of X1P to X6P is N or B; at least four substituent pairs selected from (R1, R2), (R2, R3), (R3, R4), (R4, R5), (R5, R6), and (R6, R1) are joined or fused together to form rings fused to the center ring P; each of R1, R2, R3, R4, R5, and R6 is independently a hydrogen or a General Substituents defined herein; LA is coordinated to a metal M to form a 5-membered or 6-membered chelate ring; and any two substituents may be joined or fused to form a ring. Formulations, OLEDs, and consumer products containing such compounds are also provided.
    Type: Application
    Filed: March 25, 2024
    Publication date: July 3, 2025
    Applicant: Universal Display Corporation
    Inventors: Zhiqiang Ji, Tongxiang Lu, Derek Ian Wozniak, Pierre-Luc T. Boudreault, Alexey Borisovich Dyatkin, Elena Sheina
  • Publication number: 20250221297
    Abstract: A compound having a first ligand LA including a structure of Formula I, is provided. In Formula I, each of moiety B and moiety D is a monocyclic ring or a polycyclic fused ring system; each of X1 to X5 is C or N; ring C is bonded to ring A by a C; K is a direct bond or a linking group; each RA, RB, RC, and RD is hydrogen or a General Substituent defined herein; at least one RC or RD comprises an electron-withdrawing group; and LA is coordinated to a metal M through the dashed lines. Formulations, OLEDs, and consumer products containing the compound are also provided.
    Type: Application
    Filed: December 6, 2024
    Publication date: July 3, 2025
    Applicant: UNIVERSAL DISPLAY CORPORATION
    Inventors: Zhiqiang JI, Derek Ian WOZNIAK, Tongxiang LU, Pierre-Luc T. BOUDREAULT
  • Publication number: 20250212677
    Abstract: A compound of Formula Ir(LA)x(LB)(LC)z is provided, where LA comprises a structure of Formula I, and each of LB and LC is a different bidentate ligand. In the compounds of Formula Ir(LA)x(LB)(LC)z, where moiety A is a polycyclic fused ring system comprising at least three rings, including at least one non-benzene ring; moiety B is a monocyclic ring or a polycyclic fused ring system; each of X1, X2, and Z1 is C or N; the Ir—C1 bond is a metal-carbene bond; Y1 is a linker; L1 is a direct bond or a linker; K1 is a direct bond or a linker; and each RA and RB is hydrogen or a general Substituent defined herein. Formulations, OLEDs, and consumer products containing the compound are also provided.
    Type: Application
    Filed: December 2, 2024
    Publication date: June 26, 2025
    Applicant: Universal Display Corporation
    Inventors: Jui-Yi TSAI, Tyler Fleetham, Alexey Borisovich Dyatkin, Sean Michael Ryno, Tongxiang Lu
  • Publication number: 20250133953
    Abstract: Provided are organometallic compounds comprising a ligand which is at least a two-dentate ligand which comprises at least one 5-membered nitrogen containing heterocyclic ring, the nitrogen of which is bonded to the central metal atom. Also provided are formulations comprising these organometallic compounds. Further provided are organic light emitting devices (OLEDs) and related consumer products that utilize these organometallic compounds.
    Type: Application
    Filed: December 30, 2024
    Publication date: April 24, 2025
    Applicant: UNIVERSAL DISPLAY CORPORATION
    Inventors: Walter Yeager, Jui-Yi Tsai, Alexey Borisovich Dyatkin, Wei-Chun Shih, Eric A. Margulies, Zhiqiang Ji, Tongxiang Lu, Elena Sheina
  • Publication number: 20250122233
    Abstract: A compound comprising a first ligand LA of Formula I?, or Formula I*: In Formula I? or Formula I*, all the variables are defined herein; and LA is coordinated to a metal M. Formulations, OLEDs, and consumer products containing the compound are also provided.
    Type: Application
    Filed: July 8, 2024
    Publication date: April 17, 2025
    Applicant: Universal Display Corporation
    Inventors: Zhiqiang JI, Derek Ian WOZNIAK, Pierre-Luc T. BOUDREAULT, Tongxiang LU, Alexey Borisovich DYATKIN, Jerald FELDMAN
  • Publication number: 20240251657
    Abstract: Provided are neutral Pt or Pd compounds comprising a tridentate and a monodentate ligand, wherein the tridentate ligand comprises at least three 5- or 6-membered rings. Also provided are formulations comprising these neutral Pt or Pd compounds. Further provided are organic light emitting devices (OLEDs) and related consumer products that utilize these neutral Pt or Pd compounds.
    Type: Application
    Filed: November 15, 2023
    Publication date: July 25, 2024
    Applicant: UNIVERSAL DISPLAY CORPORATION
    Inventors: Hsiao-Fan CHEN, Scott BEERS, Tongxiang LU, Joseph A. MACOR, Thrimurtulu NEETIPALLI, Hai T. Le, Jason DENNY
  • Publication number: 20240196728
    Abstract: Provided are organometallic complexes including 5-membered heterocyclic rings. The compounds include a ligand LA having a structure of Also provided are formulations comprising these compounds. Further provided are OLEDs and related consumer products that utilize these compounds.
    Type: Application
    Filed: December 19, 2023
    Publication date: June 13, 2024
    Applicant: UNIVERSAL DISPLAY CORPORATION
    Inventors: Zhiqiang JI, Tongxiang LU, Wei-Chun SHIH, Pierre-Luc T. BOUDREAULT, George FITZGERALD
  • Patent number: 11957050
    Abstract: A compound of Formula I wherein Y is selected from the group consisting of NAr, O, S, and Se; Ar is an optionally substituted aryl or optionally substituted heteroaryl; and Z1 to Z8 are independently selected from C or N, wherein at least one of Z2 or Z3 is C, and at least one of Z6 or Z7 is C. R is selected from the group consisting of deuterium, alkyl, cycloalkyl, heteroalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, aryl, heteroaryl, nitrile, isonitrile, sulfanyl, and combinations thereof; or optionally R can join with Ar to from a ring; and with the provisios that R is not N-methyl-benzimidazole, and the compound is not compound A.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: April 9, 2024
    Inventors: Suman Layek, Jerald Feldman, Peter Wolohan, Tongxiang Lu
  • Patent number: 11932660
    Abstract: Provided are organometallic compounds. Also provided are formulations comprising these organometallic compounds. Further provided are OLEDs and related consumer products that utilize these organometallic compounds.
    Type: Grant
    Filed: January 4, 2021
    Date of Patent: March 19, 2024
    Assignee: Universal Display Corporation
    Inventors: Wei-Chun Shih, Tyler Fleetham, Zhiqiang Ji, Pierre-Luc T. Boudreault, Tongxiang Lu, Rasha Hamze
  • Publication number: 20240076307
    Abstract: Provided are compounds of Formula Ir(LA)x(LC)y wherein: ligand LA has Formula I? ?and ligand LC has Formula II?
    Type: Application
    Filed: October 10, 2023
    Publication date: March 7, 2024
    Applicant: Universal Display Corporation
    Inventors: Wei-Chun SHIH, Zhiqiang JI, Pierre-Luc T. BOUDREAULT, Hsiao-Fan CHEN, Tongxiang LU
  • Publication number: 20230422594
    Abstract: A compound including a ligand LA of Formula I, where C1 and C2 are carbon atoms and a moiety of Formula II, is bonded to one of C1 and C2 by the two dashed lines in Formula II is provided. The variables in Formulae I and II are as defined in the present disclosure.
    Type: Application
    Filed: March 29, 2023
    Publication date: December 28, 2023
    Applicant: UNIVERSAL DISPLAY CORPORATION
    Inventors: Zhiqiang JI, Tongxiang LU
  • Patent number: 11825736
    Abstract: A compound of Formula I having isoindoline moiety is disclosed. Their unique configuration of the fused rings enable the compound to exhibit phosphorescent emission in red color region to near infrared region and are useful as emitter materials in organic electroluminescence device.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: November 21, 2023
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Zhiqiang Ji, Tongxiang Lu, Pierre-Luc T. Boudreault, George Fitzgerald
  • Patent number: 11820783
    Abstract: Provided are compounds of Formula Ir(LA)x(LC)y, wherein: ligand LA has Formula I? and ligand LC has Formula II?
    Type: Grant
    Filed: August 6, 2020
    Date of Patent: November 21, 2023
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Wei-Chun Shih, Zhiqiang Ji, Pierre-Luc T. Boudreault, Hsiao-Fan Chen, Tongxiang Lu
  • Publication number: 20230357296
    Abstract: A compound having a first ligand LA of Formula I, is provided. In Formula I, Z is C or N; at least one of X1 to X5 is N, and the remainder are C; if X1 is N, then X5 is C; K is selected from the group consisting of a direct bond, O, S, N(R?), P(R?), B(R?), C(R?)(R?), and Si(R?)(R?); each R?, R?, RA and RB is a hydrogen or a General Substituent; LA is coordinated to a metal M; and Ring A coordinates to M through a metal carbene bond. Formulations, OLEDs, and consumer products containing the compound are also provided.
    Type: Application
    Filed: May 1, 2023
    Publication date: November 9, 2023
    Applicant: Universal Display Corporation
    Inventors: Jui-Yi TSAI, Geza SZIGETHY, Wei-Chun SHIH, Hsiao-Fan CHEN, Walter YEAGER, Alexey Borisovich DYATKIN, Tongxiang LU, Diana DRENNAN, George FITZGERALD
  • Publication number: 20230303601
    Abstract: Provided are compounds compound comprising a first ligand LA of Formula I: wherein R1 and R2 are each independently a hydrogen or a substituent selected from the group consisting of deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, germyl, boryl, selenyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carboxylic acid, ether, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof; wherein LA is coordinated to a metal M through the indicated dashed lines; wherein M may be coordinated to other ligands; wherein LA may be joined with other ligands to comprise a tridentate, tetradentate, pentadentate, or hexadentate ligand; and wherein any two substituents may be joined or fused to form a ring. Also provided are formulations comprising these compounds. Further provided are OLEDs and related consumer products that utilize these compounds.
    Type: Application
    Filed: December 1, 2022
    Publication date: September 28, 2023
    Applicant: UNIVERSAL DISPLAY CORPORATION
    Inventors: Jui-Yi TSAI, Tongxiang LU, Alexey Borisovich DYATKIN, Maria L. BUIL, Maria BENITEZ, Miguel A. ESTERUELAS, Susana IZQUIERDO, Enrique OÑATE
  • Publication number: 20230263048
    Abstract: Provided are organometallic compounds comprising a ligand with fused aromatic structures according to Formula I as described herein and their various uses including as emitters in devices and related electronic devices. Also provided are formulations comprising these compounds. Further provided are organic light emitting devices (OLEDs) and related consumer products that utilize these compounds.
    Type: Application
    Filed: January 26, 2023
    Publication date: August 17, 2023
    Applicant: UNIVERSAL DISPLAY CORPORATION
    Inventors: Zhiqiang JI, Tongxiang LU, Pierre-Luc T. BOUDREAULT
  • Patent number: 11716898
    Abstract: This invention relates to the development of heterocyclic materials for use as blue phosphorescent materials in OLED devices. The materials are based on a pair of 5-membered aromatic or psuedoaromatic rings bonded to one another and complexed to a transition metal. The materials were determined computationally to have appropriate triplet energies for use as blue emitters and to possess sufficient chemical stability for use in devices.
    Type: Grant
    Filed: May 20, 2020
    Date of Patent: August 1, 2023
    Assignee: Universal Display Corporation
    Inventors: Tongxiang Lu, George Fitzgerald, Paul Lahti, Morgan C. MacInnis
  • Publication number: 20230180594
    Abstract: A compound including a first ligand LA of Formula I, is provided. In Formula I, rings A, B, C, and D are each a 5-membered or 6-membered ring; L1 is selected from CR, SiR, GeR, N, or B; L2 is selected from CRR?, SiRR?, GeRR?, NR, O, S, Se, or C?X; X is CRR?, O, or S; each of Z1, Z2, Z3, Z4, Z5, Z6, Z7, Z8, and Z9 is independently C or N; each R, R?, RA, RB, RC, and RD is independently hydrogen or a General Substituent; LA is coordinated to a metal M through the indicated dashed lines; metal M may be coordinated to other ligands; and any two adjacent R, R?, RA, RB, RC, and RD may be joined or fused to form a ring. Formulations, OLEDs, and consumer products including the compound are also provided.
    Type: Application
    Filed: November 3, 2022
    Publication date: June 8, 2023
    Applicant: Universal Display Corporation
    Inventors: Jui-Yi TSAI, Geza SZIGETHY, Tongxiang LU, Alexey Borisovich DYATKIN, Llorenç BENAVENT, Miguel A. ESTERUELAS, Ana M. LOPEZ, Enrique OÑATE
  • Publication number: 20230117271
    Abstract: Provided are compounds comprising a structure of the following Formula I: where the structure of Formula I can be coordinated to a metal M. Also provided are formulations comprising these compounds. Further provided are OLEDs and related consumer products that utilize these compounds.
    Type: Application
    Filed: July 12, 2022
    Publication date: April 20, 2023
    Applicant: Universal Display Corporation
    Inventors: Hsiao-Fan CHEN, Tongxiang LU, Scott BEERS, Chun LIN