Patents by Inventor Paul M. Lahti

Paul M. Lahti 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: 11758804
    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: Grant
    Filed: May 24, 2018
    Date of Patent: September 12, 2023
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Hsiao-Fan Chen, Mingjuan Su, Zhiqiang Ji, Jui-Yi Tsai, Jason Brooks, Paul M. Lahti
  • Publication number: 20230276696
    Abstract: The present invention includes novel heterocyclic materials for use as blue phosphorescent materials in OLED devices. The materials are based on carbene and heterocyclic 5-membered ring linked ligands, which may be complexed to a transition metal via a metal-carbon (carbene) bond and a metal-nitrogen covalent bond.
    Type: Application
    Filed: April 17, 2023
    Publication date: August 31, 2023
    Inventors: Tongxiang (Aaron) Lu, George Fitzgerald, Morgan C. MacInnis, Paul M. Lahti
  • 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
  • Patent number: 11678565
    Abstract: The present invention includes novel heterocyclic materials for use as blue phosphorescent materials in OLED devices. The materials are based on carbene and heterocyclic 5-membered ring linked ligands, which may be complexed to a transition metal via a metal-carbon (carbene) bond and a metal-nitrogen covalent bond.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: June 13, 2023
    Assignee: Universal Display Corporation
    Inventors: Tongxiang (Aaron) Lu, George Fitzgerald, Morgan C. MacInnis, Paul M. Lahti
  • Patent number: 11239433
    Abstract: A compound comprising a ligand LA having the formula: is disclosed. Such a compound is suitable for use an emitter in organic light emitting devices.
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: February 1, 2022
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Morgan C. MacInnis, Diana Drennan, Tongxiang Lu, Daniel W. Silverstein, Hsiao-Fan Chen, George Fitzgerald, Jason Brooks, Paul M. Lahti
  • Patent number: 11201299
    Abstract: The present invention includes novel heterocyclic materials for use as blue phosphorescent materials in OLED devices. The novel materials include two fused 5-membered aromatic or pseudoaromatic rings, which are bonded with 6 membered aromatic rings to serve as chelation ligands for a transition metal. The novel 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: April 13, 2018
    Date of Patent: December 14, 2021
    Assignee: Universal Display Corporation
    Inventors: Tongxiang (Aaron) Lu, George Fitzgerald, Paul M. Lahti, Morgan C. MacInnis, Daniel W. Silverstein, Peter Wolohan, Diana Drennan
  • Patent number: 10964904
    Abstract: This invention relates to the development of heterocyclic materials for use as red, green, and blue phosphorescent materials in OLED devices. The materials are based in part on a pair of aromatic or psuedoaromatic rings bonded to one another and complexed to a transition metal. Azaborinane, borazine, and related aromatic structures including boron may be incorporated as fused rings, as pendant groups, or as bridging groups to tune color and improve chemical stability. Desirable structures may be selected by being 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: January 4, 2018
    Date of Patent: March 30, 2021
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: George Fitzgerald, Paul M Lahti, Chun Lin
  • Publication number: 20210009615
    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: Application
    Filed: September 24, 2020
    Publication date: January 14, 2021
    Applicant: Universal Display Corporation
    Inventors: Lichang ZENG, Zhiqiang JI, Eric A. MARGULIES, Paul M. LAHTI, Michael S. WEAVER
  • Patent number: 10822361
    Abstract: A compound having the formula Ir(LA)n(LB)3?n, having the structure, Formula I, is disclosed. In Formula I, Z1, Z2, Z3, and Z4 each independently are N or 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: February 7, 2018
    Date of Patent: November 3, 2020
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Lichang Zeng, Zhiqiang Ji, Eric A. Margulies, Paul M. Lahti, Michael S. Weaver
  • Publication number: 20190058136
    Abstract: A compound comprising a ligand LA of Formula I shown below is disclosed.
    Type: Application
    Filed: July 18, 2018
    Publication date: February 21, 2019
    Applicant: UNIVERSAL DISPLAY CORPORATION
    Inventors: Morgan C. MACINNIS, Diana DRENNAN, Tongxiang LU, Daniel W. SILVERSTEIN, Hsiao-Fan CHEN, George FITZGERALD, Jason BROOKS, Paul M. LAHTI
  • Publication number: 20180375038
    Abstract: The present invention includes novel heterocyclic materials for use as blue phosphorescent materials in OLED devices. The materials are based on carbene and heterocyclic 5-membered ring linked ligands, which may be complexed to a transition metal via a metal-carbon (carbene) bond and a metal-nitrogen covalent bond.
    Type: Application
    Filed: June 5, 2018
    Publication date: December 27, 2018
    Inventors: Tongxiang (Aaron) Lu, George Fitzgerald, Morgan C. Maclnnis, Paul M. Lahti
  • Publication number: 20180370999
    Abstract: The present invention includes a series of novel osmium bis(tridenatate) complexes with emission profiles in the near-infrared region.
    Type: Application
    Filed: May 18, 2018
    Publication date: December 27, 2018
    Inventors: Jui-Yi Tsai, Alexey Borisovich Dyatkin, Zhiqiang Ji, Paul M. Lahti, Miguel A. Esteruelas, Ana M. Lopez, Enrique Onate, Ainhoa San Torcuato, Pierre-Luc T. Boudreault
  • 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
  • Publication number: 20180331291
    Abstract: The present invention includes novel heterocyclic materials for use as blue phosphorescent materials in OLED devices. The novel materials include two fused 5-membered aromatic or pseudoaromatic rings, which are bonded with 6 membered aromatic rings to serve as chelation ligands for a transition metal. The novel 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: Application
    Filed: April 13, 2018
    Publication date: November 15, 2018
    Inventors: Tongxiang (Aaron) Lu, George Fitzgerald, Paul M. Lahti, Morgan C. MacInnis, Daniel W. Silverstein, Peter Wolohan, Diana Drennan
  • Publication number: 20180261793
    Abstract: This invention relates to the development of heterocyclic materials for use as red, green, and blue phosphorescent materials in OLED devices. The materials are based in part on a pair of aromatic or psuedoaromatic rings bonded to one another and complexed to a transition metal. Azaborinane, borazine, and related aromatic structures including boron may be incorporated as fused rings, as pendant groups, or as bridging groups to tune color and improve chemical stability. Desirable structures may be selected by being determined computationally to have appropriate triplet energies for use as blue emitters and to possess sufficient chemical stability for use in devices.
    Type: Application
    Filed: January 4, 2018
    Publication date: September 13, 2018
    Inventors: George FITZGERALD, Paul M. LAHTI, Chun LIN
  • Publication number: 20180237463
    Abstract: A compound having the formula Ir(LA)n(LB)3-n, having the structure Formula I, is disclosed. In Formula I, Z1, Z2, Z3, and Z4 each independently are N or 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: Application
    Filed: February 7, 2018
    Publication date: August 23, 2018
    Applicant: Universal Display Corporation
    Inventors: Lichang Zeng, Zhiqiang Ji, Eric A. Margulies, Paul M. Lahti, Michael S. Weaver
  • Publication number: 20180226580
    Abstract: The present invention includes novel compounds having a boron containing ring for use as charge transporters, hosts or emitters in OLEDs.
    Type: Application
    Filed: January 18, 2018
    Publication date: August 9, 2018
    Inventors: George Fitzgerald, Chun Lin, Alexey Borisovich Dyatkin, Paul M. Lahti