Patents by Inventor Zhiqiang Ji

Zhiqiang Ji 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).

  • ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES
    Publication number: 20220285631
    Abstract: A compound comprising a first ligand LA of Formula I, is disclosed. In Formula I, ring A is a 5- or 6-membered ring; K is selected from a direct bond and a linking group; two adjacent ones of X1 to X4 are CR and are fused to form a structure of Formula II, each of X1 to X12 is CR or N; X is selected from a variety of linking groups; each R, R?, R?, and RA is hydrogen or a substituent; LA is coordinated to a metal M through the dashed lines in Formula I; and wherein (1) when X is CR?R?, X5 is CR; and (2) when X is O, S, Se, or NR?, at least one of the following is true: (a) the metal M is further coordinated to at least one substituted or unsubstituted acetylacetonate ligand; (b) at least one R comprises an electron withdrawing group; (c) at least two RA is not hydrogen or deuterium; or (d) at least one R is selected from a specific group of structures.
    Type: Application
    Filed: January 28, 2022
    Publication date: September 8, 2022
    Applicant: Universal Display Corporation
    Inventors: Zhiqiang JI, Pierre-Luc T. BOUDREAULT, Wei-Chun SHIH, Derek Ian WOZNIAK
  • ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES
    Publication number: 20220281905
    Abstract: A compound comprising a metal M and a ligand LA, where LA includes a structure of Formula I, is disclosed. In Formula I, each of L1 and L2 is a direct bond of a linking group; each of X1 to X16 is C or N; each of R, R?, RA, RB, RC, and RD is independently hydrogen or a General Substituent. OLEDs, consumer products, and formulations including the compound are also disclosed.
    Type: Application
    Filed: January 20, 2022
    Publication date: September 8, 2022
    Applicant: Universal Display Corporation
    Inventors: Zhiqiang JI, Pierre-Luc T. BOUDREAULT
  • Organic electroluminescent materials and devices
    Patent number: 11437591
    Abstract: The present invention includes novel transition metal complexes with 1,2,4-triazine derivatives as ligands. The materials may be useful as emitter materials in organic electroluminescence device to improve the performance.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: September 6, 2022
    Assignee: Universal Display Corporation
    Inventors: Alexey Borisovich Dyatkin, Pierre-Luc T. Boudreault, Zhiqiang Ji, Suman Layek, Jui-Yi Tsai
  • ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES
    Publication number: 20220275013
    Abstract: A compound including ligand LA of Formula I, where LA includes at least one deuterium atom is provided. In Formula I, moiety A and B are monocyclic rings or polycyclic fused rings; K1 and K2 are direct bond, O, or S; and either (1) two RA or two RB substituents are joined together to form a fused ring structure of Formula II, where Formula II is joined to ring A or ring B, respectively, by the dashed lines, and Y is Se or GeR?R?; or (2) at least one RA or RB comprises a structure of Formula III, and Y is Se or GeR?R?; where Formula III is not fused to either of ring A or ring B. Formulations, OLEDs, and consumer products including the compound are also provided.
    Type: Application
    Filed: February 11, 2022
    Publication date: September 1, 2022
    Applicant: UNIVERSAL DISPLAY CORPORATION
    Inventors: Zhiqiang JI, Pierre-Luc T. BOUDREAULT, Wei-Chun SHIH, Derek Ian WOZNIAK, Chun LIN, James FIORDELISO
  • ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES
    Publication number: 20220271240
    Abstract: A compound comprising a ligand LA of Formula I, is disclosed. In Formula I, ring A is a 5- or 6-membered ring; R is formula II, and is fused to ring B to form ring C; each of X1, X2, X3, and X4 is carbon or nitrogen; X is selected from a variety of bivalent moieties; each R1 to R4, R?, and R? is hydrogen or a substituent; at least one 6-membered ring carbon that is part of Ring A, Ring B, or a fused ring system comprising Ring A or Ring B is substituted with deuterium; and K1 is selected from a direct bond, O, and S. Formulations, OLEDs, and consumer products including the compound are also disclosed.
    Type: Application
    Filed: February 11, 2022
    Publication date: August 25, 2022
    Applicant: UNIVERSAL DISPLAY CORPORATION
    Inventors: Zhiqiang JI, Chun LIN, Pierre-Luc T. BOUDREAULT
  • Organic electroluminescent materials and devices
    Patent number: 11424419
    Abstract: A compound is disclosed that has a metal coordination complex structure having at least two ligands coordinated to the metal; wherein the compound has a first substituent R1 at one of the ligands' periphery; wherein a first distance is defined as the distance between the metal and one of the atoms in R1 where that atom is the farthest away from the metal among the atoms in R1; wherein the first distance is also longer than any other atom-to-metal distance between the metal and any other atoms in the compound; and wherein when a sphere having a radius r is defined whose center is at the metal and the radius r is the smallest radius that will allow the sphere to enclose all atoms in the compound that are not part of R1, the first distance is longer than the radius r by at least 2.9 ?.
    Type: Grant
    Filed: April 21, 2020
    Date of Patent: August 23, 2022
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Eric A. Margulies, Zhiqiang Ji, Jui-Yi Tsai, Chun Lin, Alexey Borisovich Dyatkin, Mingjuan Su, Bin Ma, Michael S. Weaver, Julia J. Brown, Lichang Zeng, Walter Yeager, Alan DeAngelis, Chuanjun Xia
  • ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES
    Publication number: 20220251125
    Abstract: A compound including a bidentate ligand LA that includes a moiety of Formula I, is described. In Formula I, ligand LA is coordinated to a metal M by two bonds, and (i) both bonds are with Formula I, and if the metal M is coordinated by a direct bond to a nitrogen of ring C or ring D, then at least one of ring A, ring B, ring C, and ring D is not a benzene ring; or (ii) one of the two bonds is with Formula I, and the other bond is with Formula II which is attached to one of rings A, B, C, or D. In addition, each of ring A, ring B, ring C, ring D, and, if present, ring E is a 5-membered or 6-membered ring; each RA, RB, RC, RD, and RE is a hydrogen or one of a variety of substituents.
    Type: Application
    Filed: November 17, 2021
    Publication date: August 11, 2022
    Applicant: UNIVERSAL DISPLAY CORPORATION
    Inventor: Zhiqiang JI
  • Organic electroluminescent materials and devices
    Patent number: 11404653
    Abstract: A compound including a first ligand LA of Formula I is disclosed. The compound is useful as an emitter in phosphorescent OLEDs.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: August 2, 2022
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Pierre-Luc T. Boudreault, Zhiqiang Ji, Bin Ma, Alan Deangelis, Alexey Borisovich Dyatkin, Jui-Yi Tsai
  • ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES
    Publication number: 20220238812
    Abstract: A compound including a first ligand LA selected from the following group: is disclosed.
    Type: Application
    Filed: April 5, 2022
    Publication date: July 28, 2022
    Applicant: UNIVERSAL DISPLAY CORPORATION
    Inventors: Jui-Yi TSAI, Alexey Borisovich DYATKIN, Zhiqiang JI
  • ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES
    Publication number: 20220231237
    Abstract: Ligands with fused spirocyclic substitutions and metal complexes formed with such ligands and having improved performance in OLED applications are disclosed.
    Type: Application
    Filed: April 1, 2022
    Publication date: July 21, 2022
    Applicant: Universal Display Corporation
    Inventors: Lichang ZENG, Suman LAYEK, Chuanjun XIA, Zhiqiang JI, Edward BARRON
  • ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES
    Publication number: 20220220141
    Abstract: Provided are organometallic compounds of of Formula I: Also provided are formulations comprising these organometallic compounds. Further provided are OLEDs and related consumer products that utilize these organometallic compounds.
    Type: Application
    Filed: December 3, 2021
    Publication date: July 14, 2022
    Applicant: UNIVERSAL DISPLAY CORPORATION
    Inventors: Wei-Chun SHIH, Tyler FLEETHAM, Zhiqiang JI, Pierre-Luc T. BOUDREAULT
  • ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES
    Publication number: 20220213131
    Abstract: Provided are compounds having a ligand LA of Formula I, Also provided are formulations comprising these compounds. Further provided are OLEDs and related consumer products that utilize these compounds.
    Type: Application
    Filed: November 1, 2021
    Publication date: July 7, 2022
    Applicant: UNIVERSAL DISPLAY CORPORATION
    Inventors: Wei-Chun SHIH, Zhiqiang JI, Pierre-Luc T. BOUDREAULT
  • Organic electroluminescent materials and devices
    Patent number: 11377459
    Abstract: A compound comprising a first ligand LA having the formula Formula I, is disclosed. In Formula I, ring A is a five- or six-membered carbocyclic or heterocyclic ring; Y1 is selected from carbon and nitrogen; each of X1 to X4 is C or N; at least two adjacent R2s of ring B form a fused structure having the following formula: ring C is fused to ring B and the wavy lines are bonds attached to ring B; ring D and ring E are either a 5-membered aromatic ring or a 6-membered aromatic ring; each R1, R2, R3, RA, RB, RC, and RD is independently selected from a variety of substituents; ligand LA is coordinated to a metal M and, optionally, linked with other ligands; and M is optionally coordinated to other ligands. Organic light emitting devices and consumer products containing the compounds are also disclosed.
    Type: Grant
    Filed: November 18, 2020
    Date of Patent: July 5, 2022
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Zhiqiang Ji, Chun Lin, Jui-Yi Tsai
  • Organic electroluminescent materials and devices
    Patent number: 11374181
    Abstract: Provided are a compound of Formula I Ir(LA)x(LB)y(LC)z, where x is 1 or 2; y is 1 or 2; z is 0, or 1, with x+y+z=3; LA is a ligand of Formula II
    Type: Grant
    Filed: July 24, 2020
    Date of Patent: June 28, 2022
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Morgan C. MacInnis, Zhiqiang Ji, Jui-Yi Tsai, Alexey Borisovich Dyatkin, Pierre-Luc T. Boudreault
  • ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES
    Publication number: 20220194974
    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: Application
    Filed: November 9, 2021
    Publication date: June 23, 2022
    Applicant: UNIVERSAL DISPLAY CORPORATION
    Inventors: Wei-Chun SHIH, Zhiqiang JI, Pierre-Luc T. BOUDREAULT, Bert ALLEYNE, Suman LAYEK, Walter YEAGER
  • ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES
    Publication number: 20220169670
    Abstract: Provided are organometallic compounds having a formula Ir(LA)(LB)(LC), wherein: ligand LA is ligand LB is and ligand LC is Also provided are formulations including these organometallic compounds. Further provided are OLEDs and related consumer products that utilize these organometallic compounds.
    Type: Application
    Filed: November 1, 2021
    Publication date: June 2, 2022
    Applicant: UNIVERSAL DISPLAY CORPORATION
    Inventors: Jui-Yi TSAI, George FITZGERALD, Alexey Borisovich DYATKIN, Zhiqiang JI, Pierre-Luc T. BOUDREAULT
  • ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES
    Publication number: 20220173337
    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: Application
    Filed: November 4, 2021
    Publication date: June 2, 2022
    Applicant: UNIVERSAL DISPLAY CORPORATION
    Inventors: Wei-Chun SHIH, Zhiqiang JI, Pierre-Luc T. BOUDREAULT, Bert ALLEYNE, Suman LAYEK, Walter YEAGER
  • Organic electroluminescent materials and devices
    Patent number: 11349087
    Abstract: Iridium complexes containing hexadentate ligands are disclosed. Multidentate iridium complexes of Formula II showed desired properties in term of EQE, LT, CIE, etc.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: May 31, 2022
    Assignee: Universal Display Corporation
    Inventors: Jui-Yi Tsai, Chuanjun Xia, Zhiqiang Ji
  • ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES
    Publication number: 20220165967
    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: November 1, 2021
    Publication date: May 26, 2022
    Applicant: UNIVERSAL DISPLAY CORPORATION
    Inventors: Zhiqiang JI, Tongxiang LU, Wei-Chun SHIH, Pierre-Luc T. BOUDREAULT, George FITZGERALD
  • ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES
    Publication number: 20220162243
    Abstract: Provided are organometallic compounds comprising a first ligand LA of Formula I Also provided are formulations comprising these organometallic compounds. Further provided are OLEDs and related consumer products that utilize these organometallic compounds.
    Type: Application
    Filed: November 1, 2021
    Publication date: May 26, 2022
    Applicant: UNIVERSAL DISPLAY CORPORATION
    Inventors: Wei-Chun SHIH, Zhiqiang JI, Pierre-Luc T. BOUDREAULT