Patents by Inventor Mingjuan Su

Mingjuan Su 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: 10672997
    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: June 9, 2017
    Date of Patent: June 2, 2020
    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
  • Patent number: 10651403
    Abstract: The present invention includes a new series of benzofused heterocyclic ligands for metal complexes. These complexes show promising photophysical performance when incorporated into OLEDs.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: May 12, 2020
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Mingjuan Su, Walter Yeager, Alan DeAngelis, Bin Ma, Lichang Zeng, Chuanjun Xia
  • Publication number: 20190296252
    Abstract: A composition including a first compound capable of functioning as a phosphorescent emitter in an OLED is provided. The first compound has at least one aromatic ring and at least one substituent R directly bonded to one of the at least one aromatic rings. Each substituent R has the formula of where (a) G1 is selected from NR1, SiR1R2, GeR1R2, alkyl, cycloalkyl, and combinations thereof; and G2 is a non-aromatic polycyclic group; (b) G1 is a direct bond; and G2 is a non-aromatic spiro polycyclic group; or (c) G1 is selected from direct bond, NR1, SiR1R2, GeR1R2, alkyl, cycloalkyl, and combinations thereof; G2 is a non-aromatic polycyclic group; and R is directly bonded to a phenyl, pyridine, or triazine. R1, R2, and R3 are a variety of substituents. Formulations and devices, such as an OLEDs, that include the first compound are also described.
    Type: Application
    Filed: June 12, 2019
    Publication date: September 26, 2019
    Applicant: UNIVERSAL DISPLAY CORPORATION
    Inventors: Chuanjun XIA, Chun LIN, Pierre-Luc T. BOUDREAULT, Jui-Yi TSAI, Mingjuan SU, Lichang ZENG, Zhiqiang JI, Edward BARRON, Walter YEAGER, Alexey Borisovich DYATKIN
  • Publication number: 20190280212
    Abstract: A premixed co-evaporation source that is a mixture of a first compound and a second compound is disclosed. The co-evaporation source is for vacuum deposition process. The first compound has a different chemical structure than the second compound. The first compound and the second compound are both organic compounds. At least one of the first compound and the second compound contains at least one less abundant stable isotope atom. At least one of the first compound and the second compound is a fluorescent or delayed fluorescent emitter. The first compound has an evaporation temperature T1 of 100 to 400° C.; the second compound has an evaporation temperature T2 of 100 to 400° C.; the absolute value of T1?T2 is less than 20° C.
    Type: Application
    Filed: May 23, 2019
    Publication date: September 12, 2019
    Applicant: Universal Display Corporation
    Inventors: Lichang ZENG, Chuanjun XIA, Scott JOSEPH, Walter YEAGER, Mingjuan SU, Ting-Chih WANG
  • Publication number: 20190237683
    Abstract: Novel phosphorescent metal complexes containing ligands having the Formula I: bearing either a naphthalene or other fused heterocycle moieties such as benzofuran and benzothiophene useful as emitters in OLEDs and improve the device efficiency and the FWHM of the emission are disclosed.
    Type: Application
    Filed: April 4, 2019
    Publication date: August 1, 2019
    Applicant: Universal Display Corporation
    Inventors: Pierre-Luc T. BOUDREAULT, Mingjuan SU, Harvey WENDT, Scott JOSEPH
  • Patent number: 10361375
    Abstract: A composition formed of a mixture of a first compound and a second compound wherein the first compound has a different chemical structure than the second compound. The first compound and the second compound are both organic compounds. At least one of the first compound and the second compound contains at least one less abundant stable isotope atom. The first compound has an evaporation temperature T1 and the second compound has an evaporation temperature T2 where both T1 and T2 are between 100 to 400 ° C. and the absolute value of T1-T2 is less than 20 ° C. The first compound has a concentration C1 in said mixture and a concentration C2 in a film formed by evaporating said mixture in a high vacuum deposition tool with a chamber base pressure between 1×10?6 Torr to 1×10?9 Torr, at a 2?/sec deposition rate on a surface positioned at a predefined distance away from the mixture being evaporated; and wherein absolute value of (C1-C2)/C1 is less than 5%.
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: July 23, 2019
    Assignee: Universal Display Corporation
    Inventors: Lichang Zeng, Chuanjun Xia, Scott Joseph, Walter Yeager, Mingjuan Su, Ting-Chih Wang
  • Patent number: 10361381
    Abstract: A composition including a first compound capable of functioning as a phosphorescent emitter in an OLED is provided. The first compound has at least one aromatic ring and at least one substituent R directly bonded to one of the at least one aromatic rings. Each substituent R has the formula of where (a) G1 is selected from NR1, SiR1R2, GeR1R2, alkyl, cycloalkyl, and combinations thereof; and G2 is a non-aromatic polycyclic group; (b) G1 is a direct bond; and G2 is a non-aromatic spiro polycyclic group; or (c) G1 is selected from direct bond, NR1, SiR1R2, GeR1R2, alkyl, cycloalkyl, and combinations thereof; G2 is a non-aromatic polycyclic group; and R is directly bonded to a phenyl, pyridine, or triazine. R1, R2, and R3 are a variety of substituents. Formulations and devices, such as an OLEDs, that include the first compound are also described.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: July 23, 2019
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Chuanjun Xia, Chun Lin, Pierre-Luc T. Boudreault, Jui-Yi Tsai, Mingjuan Su, Lichang Zeng, Zhiqiang Ji, Edward Barron, Walter Yeager, Alexey Borisovich Dyatkin
  • Publication number: 20190135841
    Abstract: A compound that includes a ligand LA of Formula I, Formula II, or Formula III, and the ligand LA is coordinated to a metal M. Ring A is a 5-membered, or 6-membered, aromatic ring, and Ring B a 5-membered, or 6-membered, carboxylic or heterocyclic ring. Y1, Y2, and Y3 are independently selected from the group consisting of C, N, and B, and forms an aromatic BN ring; wherein one of Y1, Y2, and Y3 is C, one of Y1, Y2, and Y3 is N, and one of Y1, Y2, and Y3 is B, and the B and N are adjacent ring atoms; and Z1 and Z2 are independently selected from the group consisting of C and N. The compounds can be used as phosphorescent dopant emitters in OLEDs. An OLED that includes an organic layer that includes a compound with a ligand LA of Formula I, Formula II, or Formula III, and a consumer product that includes the OLED.
    Type: Application
    Filed: October 23, 2018
    Publication date: May 9, 2019
    Inventors: Mingjuan Su, Hsiao-Fan Chen
  • Publication number: 20190140191
    Abstract: A compound having a metal coordination complex structure, where the compound is capable of functioning as a phosphorescent emitter in an organic light emitting device at room temperature is disclosed. The compound has a first ligand coordinated to a metal. The free-state of the first ligand has a first triplet energy T1 of EL at 77K, while the compound has a first triplet energy T1 of E at 77K, and the difference in energy (?E) between E and EL is ?250 meV. The compound has a triplet emission spectrum with a FWHM value of no more than 45 nm. Organic light emitting devices, consumer products, and formulations containing the compounds are also disclosed.
    Type: Application
    Filed: December 28, 2018
    Publication date: May 9, 2019
    Applicant: UNIVERSAL DISPLAY CORPORATION
    Inventors: Jui-Yi TSAI, Eric A. MARGULIES, Zhiqiang JI, Alexey Borisovich DYATKIN, Walter YEAGER, Mingjuan SU
  • Publication number: 20190119566
    Abstract: A compound having a Pt tetradentate structure of Formula 1, is provided. In the structure of Formula 1, rings C and D each independently represent 5- or 6-membered carbocyclic or heterocyclic ring; L1, L2, and L3 are each independently a direct bond, BR, NR, PR, O, S, Se, C?O, S?O, SO2, SiRR?, GeRR?, alkyl, cycloalkyl, or a combination thereof; the sum of n1 and n2 is 1 or 2; X is selected from NRE, O, S, and Se; X3 and X4 each independently carbon or nitrogen; and one of Q1, Q3, and Q4 is oxygen, and the remaining two of Q1, Q3, and Q4 each represents a direct bond. Formulations and devices, such as an OLEDs, that include the compound of Formula 1 are also described.
    Type: Application
    Filed: October 18, 2018
    Publication date: April 25, 2019
    Applicant: Universal Display Corporation
    Inventors: BIN MA, Mingjuan SU, Alan DEANGELIS, Edward BARRON, Chuanjun XIA
  • Publication number: 20190088889
    Abstract: The present invention includes novel heteroleptic/homoleptic iridium complexes containing two tridentate ligands, where at least one of the tridentate ligands comprises of pyridinium-derived N-heterocyclic carbene. The compounds of the present invention may be useful for organic electroluminescent devices.
    Type: Application
    Filed: September 20, 2018
    Publication date: March 21, 2019
    Inventors: Jui-Yi Tsai, Mingjuan Su
  • Publication number: 20190036040
    Abstract: The present invention includes novel polycyclic alkyl amino carbenes as ligands for metal complexes. These compounds may be useful as emitter materials for phosphorescent electroluminescent devices.
    Type: Application
    Filed: July 23, 2018
    Publication date: January 31, 2019
    Inventors: Mingjuan Su, Morgan C. MacInnis, Daniel W. Silverstein, Tongxiang (Aaron) Lu, George Fitzgerald
  • Publication number: 20180375037
    Abstract: Novel metal compounds having a first ligand LA that has the following formula: Formula I useful as emitters in OLED application are disclosed.
    Type: Application
    Filed: May 24, 2018
    Publication date: December 27, 2018
    Applicant: Universal Display Corporation
    Inventors: Hsiao-Fan CHEN, Mingjuan SU, Zhiqiang JI, Jui-Yi TSAI, Jason BROOKS, Paul M. LAHTI
  • Patent number: 10144867
    Abstract: A compound having a Pt tetradentate structure selected from the group consisting of is provided. In the structures of Formula 1 and Formula 2, rings C and D each independently represent 5- or 6-membered carbocyclic or heterocyclic ring; L1, L2, and L3 are each independently a direct bond, BR, NR, PR, O, S, Se, C?O, S?O, SO2, SiRR?, GeRR?, alkyl, cycloalkyl, or a combination thereof; the sum of n1 and n2 is 1 or 2; X is selected from NRE, O, S, and Se; X3 and X4 each independently carbon or nitrogen; and one of Q1, Q3, and Q4 is oxygen, and the remaining two of Q1, Q3, and Q4 each represents a direct bond. Formulations and devices, such as an OLEDs, that include the compound of Formulas 1 and 2 are also described.
    Type: Grant
    Filed: February 2, 2016
    Date of Patent: December 4, 2018
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Bin Ma, Mingjuan Su, Alan Deangelis, Edward Barron, Chuanjun Xia
  • Publication number: 20180337351
    Abstract: The present invention includes novel transition metal complexes of bidentate ligands containing benzofused imidazole moieties. The materials are useful for application in organic electroluminescence devices.
    Type: Application
    Filed: April 26, 2018
    Publication date: November 22, 2018
    Inventors: Jerald Feldman, Jui-Yi Tsai, Alexey Borisovich Dyatkin, Zhiqiang Ji, Mingjuan Su, Tongxiang (Aaron) Lu
  • Publication number: 20180337342
    Abstract: A compound including a first ligand LA of Formula I, useful as an emitter in OLEDs is disclosed.
    Type: Application
    Filed: April 3, 2018
    Publication date: November 22, 2018
    Applicant: Universal Display Corporation
    Inventors: Mingjuan SU, Jerald FELDMAN
  • Publication number: 20180305385
    Abstract: A compound having a formula: Formula I useful as emitters in OLEDs is disclosed.
    Type: Application
    Filed: April 9, 2018
    Publication date: October 25, 2018
    Applicant: Universal Display Corporation
    Inventors: Hsiao-Fan CHEN, Mingjuan SU
  • Publication number: 20180240988
    Abstract: Novel phosphorescent metal complexes containing ligands having the Formula I: bearing either a naphthalene or other fused heterocycle moieties such as benzofuran and benzothiophene useful as emitters in OLEDs and improve the device efficiency and the FWHM of the emission are disclosed.
    Type: Application
    Filed: April 11, 2018
    Publication date: August 23, 2018
    Applicant: Universal Display Corporation
    Inventors: Pierre-Luc T. BOUDREAULT, Mingjuan SU, Harvey WENDT, Scott JOSEPH
  • Patent number: 10033002
    Abstract: Phosphorescent iridium complexes comprising multi-alkyl-substituted aza-DBF and 2-phenylpyridine ligands is disclosed. These complexes are useful as emitters for phosphorescent OLEDs.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: July 24, 2018
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Bin Ma, Mingjuan Su, Chuanjun Xia
  • Publication number: 20180155381
    Abstract: Metal complexes with cyclic ligands having Formula (I), are disclosed. Ligands with cyclic structure are believed to be beneficial to the rigidity and stability of the metal complexes, which is desirable for improving OLED device performance.
    Type: Application
    Filed: November 7, 2017
    Publication date: June 7, 2018
    Applicant: Universal Display Corporation
    Inventors: Lichang ZENG, Zhiqiang Ji, Mingjuan Su, Edward Barron, Chun Lin