Patents by Inventor Peter Djurovich
Peter Djurovich 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).
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Publication number: 20140008639Abstract: Organic light emitting devices are described wherein the emissive layer comprises a host material containing an emissive molecule, which molecule is adapted to luminesce when a voltage is applied across the heterostructure, and the emissive molecule is selected from the group of phosphorescent organometallic complexes, including cyclometallated platinum, iridium and osmium complexes. The organic light emitting devices optionally contain an exciton blocking layer. Furthermore, improved electroluminescent efficiency in organic light emitting devices is obtained with an emitter layer comprising organometallic complexes of transition metals of formula L2MX, wherein L and X are distinct bidentate ligands. Compounds of this formula can be synthesized more facilely than in previous approaches and synthetic options allow insertion of fluorescent molecules into a phosphorescent complex, ligands to fine tune the color of emission, and ligands to trap carriers.Type: ApplicationFiled: August 29, 2013Publication date: January 9, 2014Applicants: The University of Southern California, The Trustees of Princeton UniversityInventors: Mark E. Thompson, Peter Djurovich, Sergey Lamansky, Drew Murphy, Raymond Kwong, Feras Abdel-Razzaq, Stephen R. Forrest, Marc A. Baldo, Paul A. Burrows
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Patent number: 8580394Abstract: Novel phosphorescent trigonal copper carbene complexes are provided. The complex comprise a carbene ligand coordinated to a three coordinate copper atom. The complex may be used in organic light emitting devices. In particular, the complexes may be especially useful in OLEDs used for lighting applications.Type: GrantFiled: November 17, 2010Date of Patent: November 12, 2013Assignee: Universal Display CorporationInventors: Mark Thompson, Peter Djurovich, Valentina Krylova
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Patent number: 8574726Abstract: Organic light emitting devices are described wherein the emissive layer comprises a host material containing an emissive molecule, which molecule is adapted to luminesce when a voltage is applied across the heterostructure, and the emissive molecule is selected from the group of phosphorescent organometallic complexes, including cyclometallated platinum, iridium and osmium complexes. The organic light emitting devices optionally contain an exciton blocking layer. Furthermore, improved electroluminescent efficiency in organic light emitting devices is obtained with an emitter layer comprising organometallic complexes of transition metals of formula L2MX, wherein L and X are distinct bidentate ligands. Compounds of this formula can be synthesized more facilely than in previous approaches and synthetic options allow insertion of fluorescent molecules into a phosphorescent complex, ligands to fine tune the color of emission, and ligands to trap carriers.Type: GrantFiled: January 19, 2011Date of Patent: November 5, 2013Assignees: The Trustees of Princeton University, The University of Southern CaliforniaInventors: Mark E. Thompson, Peter Djurovich, Sergey Lamansky, Drew Murphy, Raymond Kwong, Feras Abdel-Razzaq, Stephen R. Forrest, Marc A. Baldo, Paul E. Burrows
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Patent number: 8557402Abstract: Organic light emitting devices are described wherein the emissive layer comprises a host material containing an emissive molecule, which molecule is adapted to luminesce when a voltage is applied across the heterostructure, and the emissive molecule is selected from the group of phosphorescent organometallic complexes, including cyclometallated platinum, iridium and osmium complexes. The organic light emitting devices optionally contain an exciton blocking layer. Furthermore, improved electroluminescent efficiency in organic light emitting devices is obtained with an emitter layer comprising organometallic complexes of transition metals of formula L2MX, wherein L and X are distinct bidentate ligands. Compounds of this formula can be synthesized more facilely than in previous approaches and synthetic options allow insertion of fluorescent molecules into a phosphorescent complex, ligands to fine tune the color of emission, and ligands to trap carriers.Type: GrantFiled: August 8, 2011Date of Patent: October 15, 2013Assignees: The Trustees of Princeton University, The Universtiy of Southern CaliforniaInventors: Mark E. Thompson, Peter Djurovich, Sergey Lamansky, Drew Murphy, Raymond Kwong, Feras Abdel-Razzaq, Stephen R. Forrest, Marc A. Baldo, Paul E. Burrows
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Patent number: 8426041Abstract: An organic light emitting device having an anode, a cathode and an organic layer disposed between the anode and the cathode is provided.Type: GrantFiled: January 11, 2012Date of Patent: April 23, 2013Assignees: Universal Display Corporation, The University of Southern CaliforniaInventors: Peter Djurovich, Jui-Yi Tsai, Chun Lin, Jason Brooks, Bert Alleyne, Mark E. Thompson, Peter B. MacKenzie, Bin Ma
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Patent number: 8372528Abstract: The invention provides emissive materials and organic light emitting devices using the emissive materials in an emissive layer disposed between and electrically connected to an anode and a cathode. The emissive materials include compounds with the following structure: wherein at least one of R8 to R14 is phenyl or substituted phenyl, and/or at least two of R8 to R14 that are adjacent are part of a fluorenyl group. The emissive materials have enhanced electroluminescent efficiency and improved lifetime when incorporated into light emitting devices.Type: GrantFiled: October 6, 2011Date of Patent: February 12, 2013Assignee: The University of Southern CaliforniaInventors: Mark E. Thompson, Arnold Tamayo, Peter Djurovich
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Publication number: 20120153266Abstract: The present invention provides a new class of excited state intramolecular charge transfer (ESIPT) dye compounds based on mono or dihydroxy substituted 1,3-bisiminoisoindole motif and metal complexes containing such compounds as ligands. The present invention also provides OLEDs containing the compound and/or metal complex as the emissive material.Type: ApplicationFiled: December 12, 2011Publication date: June 21, 2012Inventors: Mark E. THOMPSON, Kenneth HANSON, Peter DJUROVICH
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Publication number: 20120138906Abstract: Compounds that act as capture agents to sequester unsaturated metal complexes are provided. In particular, the compounds may be host materials, dopant materials, or co-dopant materials containing functional groups, such as an isocyanide or a phosphine group, which are suitable for trapping an unsaturated coordination complex. These compounds may be used in organic light emitting devices, particularly blue devices, to provide improved device lifetime.Type: ApplicationFiled: November 22, 2011Publication date: June 7, 2012Applicant: The University of Southern California USC Stevens Institute for InnovationInventors: Mark E. Thompson, Alberto Bossi, Peter Djurovich
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Publication number: 20120104378Abstract: An organic light emitting device having an anode, a cathode and an organic layer disposed between the anode and the cathode is provided. In one aspect, the organic layer comprises a compound having at least one zwitterionic carbon donor ligand.Type: ApplicationFiled: January 11, 2012Publication date: May 3, 2012Inventors: Peter Djurovich, Jui-Yi Tsai, Chun Lin, Jason Brooks, Bert Alleyne, Mark E. Thompson, Peter B. MacKenzie, Bein Ma
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Publication number: 20120056529Abstract: Novel phosphorescent trigonal copper carbene complexes are provided. The complex comprise a carbene ligand coordinated to a three coordinate copper atom. The complex may be used in organic light emitting devices. In particular, the complexes may be especially useful in OLEDs used for lighting applications.Type: ApplicationFiled: November 17, 2010Publication date: March 8, 2012Applicant: The University of Southern CaliforniaInventors: Mark Thompson, Peter Djurovich, Valentina Krylova
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Patent number: 8114533Abstract: An organic light emitting device having an anode, a cathode and an organic layer disposed between the anode and the cathode is provided.Type: GrantFiled: August 31, 2009Date of Patent: February 14, 2012Assignees: Universal Display Corporation, The University of Southern CaliforniaInventors: Peter Djurovich, Jui-Yi Tsai, Chun Lin, Jason Brooks, Bert Alleyne, Mark E. Thompson, Peter B. MacKenzie, Bin Ma
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Publication number: 20120025698Abstract: The invention provides emissive materials and organic light emitting devices using the emissive materials in an emissive layer disposed between and electrically connected to an anode and a cathode. The emissive materials include compounds with the following structure: wherein at least one of R8 to R14 is phenyl or substituted phenyl, and/or at least two of R8 to R14 that are adjacent are part of a fluorenyl group. The emissive materials have enhanced electroluminescent efficiency and improved lifetime when incorporated into light emitting devices.Type: ApplicationFiled: October 6, 2011Publication date: February 2, 2012Inventors: Mark E. THOMPSON, Arnold Tamayo, Peter Djurovich
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Publication number: 20110285280Abstract: Organic light emitting devices are described wherein the emissive layer comprises a host material containing an emissive molecule, which molecule is adapted to luminesce when a voltage is applied across the heterostructure, and the emissive molecule is selected from the group of phosphorescent organometallic complexes, including cyclometallated platinum, iridium and osmium complexes. The organic light emitting devices optionally contain an exciton blocking layer. Furthermore, improved electroluminescent efficiency in organic light emitting devices is obtained with an emitter layer comprising organometallic complexes of transition metals of formula L2MX, wherein L and X are distinct bidentate ligands. Compounds of this formula can be synthesized more facilely than in previous approaches and synthetic options allow insertion of fluorescent molecules into a phosphorescent complex, ligands to fine tune the color of emission, and ligands to trap carriers.Type: ApplicationFiled: August 8, 2011Publication date: November 24, 2011Inventors: Mark E. THOMPSON, Peter Djurovich, Sergey Lamansky, Drew Murphy, Raymond Kwong, Feras Abdel-Razzaq, Stephen R. Forrest, Mare A. Baldo, Paul E. Burrows
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Patent number: 8043724Abstract: The invention provides emissive materials and organic light emitting devices using the emissive materials in an emissive layer disposed between and electrically connected to an anode and a cathode. The emissive materials include compounds with the following structure: wherein at least one of R8 to R14 is phenyl or substituted phenyl, and/or at least two of R8 to R14 that are adjacent are part of a fluorenyl group. The emissive materials have enhanced electroluminescent efficiency and improved lifetime when incorporated into light emitting devices.Type: GrantFiled: February 11, 2008Date of Patent: October 25, 2011Assignee: The University of Southern CaliforniaInventors: Mark E. Thompson, Arnold Tamayo, Peter Djurovich
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Patent number: 8007926Abstract: An organic light emitting device is provided. The device has an anode, a cathode and an organic layer disposed between the anode and the cathode. The organic layer comprises a compound further comprising one or more carbene ligands coordinated to a metal center.Type: GrantFiled: June 2, 2008Date of Patent: August 30, 2011Assignee: The University of Southern CaliforniaInventors: Mark E. Thompson, Arnold Tamayo, Peter Djurovich, Tissa Sajoto
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Patent number: 7989090Abstract: Certain iridium compounds which may comprise an iridium(III)-ligand complex having the general formula: (C^N)2—Ir—(N^N). (C^N) and (N^N) may each represent a ligand coordinated to an iridium atom. The iridium compounds may have a primary phosphorescent photoluminescence peak wavelength in the near-infrared (IR) range. Also, organic devices that use certain iridium compounds. The organic device may comprise an organic layer and the organic layer may comprise any of the iridium compounds disclosed herein. Also, organic devices that use certain metalloporphyrin compounds. The metalloporphyrin compounds may comprise a core porphyrin structure with four pyrrole rings. The metalloporphyrin compounds may have a primary phosphorescent photoluminescence peak wavelength in the near-IR range.Type: GrantFiled: August 25, 2009Date of Patent: August 2, 2011Assignees: The Trustees of Princeton University, The University of Southern California, The Regents of the University of MichiganInventors: Mark E. Thompson, Carsten Borek, Kenneth Hanson, Peter Djurovich, Yiru Sun, Stephen Forrest, Arnold Tamayo
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Patent number: 7883787Abstract: Organic light emitting devices are described wherein the emissive layer comprises a host material containing an emissive molecule, which molecule is adapted to luminesce when a voltage is applied across the heterostructure, and the emissive molecule is selected from the group of phosphorescent organometallic complexes, including cyclometallated platinum, iridium and osmium complexes. The organic light emitting devices optionally contain an exciton blocking layer. Furthermore, improved electroluminescent efficiency in organic light emitting devices is obtained with an emitter layer comprising organometallic complexes of transition metals of formula L2MX, wherein L and X are distinct bidentate ligands. Compounds of this formula can be synthesized more facilely than in previous approaches and synthetic options allow insertion of fluorescent molecules into a phosphorescent complex, ligands to fine tune the color of emission, and ligands to trap carriers.Type: GrantFiled: May 1, 2009Date of Patent: February 8, 2011Assignees: The Trustees of Princeton University, The University of Southern CaliforniaInventors: Mark E. Thompson, Peter Djurovich, Sergey Lamansky, Drew Murphy, Raymond Kwong, Feras Abdel-Razzaq, Stephen R. Forrest, Marc A. Baldo, Paul E. Burrows
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Patent number: 7824778Abstract: Devices are provided having an anode, a cathode, and an emissive layer disposed between and electrically connected to the anode and the cathode. The emissive layer includes an emissive material having more than one metal center. In one embodiment, first and second metal centers are independently selected from the group consisting of d7, d8, and d9 metals. A bridging ligand is coordinated to the first metal center and to the second metal center. In one embodiment, the first and second metal centers each have coordination numbers of at least 3, and more preferably each have coordination numbers of 4. In one embodiment, photoactive ligands are coordinated to the first and second metal centers. In one embodiment, there are no photoactive ligands. In one embodiment, a charge neutral bi-nuclear emissive material is provided. In one embodiment the first and metal centers have a co-facial configuration, and preferably a square planar co-facial configuration.Type: GrantFiled: May 15, 2006Date of Patent: November 2, 2010Assignee: The University of Southern CaliforniaInventors: Mark E. Thompson, Bert Alleyne, Peter Djurovich
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Publication number: 20100013386Abstract: Certain iridium compounds which may comprise an iridium(III)-ligand complex having the general formula: (C?N)2—Ir—(N?N). (C?N) and (N?N) may each represent a ligand coordinated to an iridium atom. The iridium compounds may have a primary phosphorescent photoluminescence peak wavelength in the near-infrared (IR) range. Also, organic devices that use certain iridium compounds. The organic device may comprise an organic layer and the organic layer may comprise any of the iridium compounds disclosed herein. Also, organic devices that use certain metalloporphyrin compounds. The metalloporphyrin compounds may comprise a core porphyrin structure with four pyrrole rings. The metalloporphyrin compounds may have a primary phosphorescent photoluminescence peak wavelength in the near-IR range.Type: ApplicationFiled: August 25, 2009Publication date: January 21, 2010Inventors: Mark E. THOMPSON, Carsten Borek, Kenneth Hanson, Peter Djurovich, Yiru Sun, Stephen Forrest, Arnold Tamayo
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Publication number: 20100007273Abstract: An organic light emitting device having an anode, a cathode and an organic layer disposed between the anode and the cathode is provided. In one aspect, the organic layer comprises a compound having at least one zwitterionic carbon donor ligand.Type: ApplicationFiled: August 31, 2009Publication date: January 14, 2010Inventors: Peter Djurovich, Jui-Yi Tsai, Chun Lin, Jason Brooks, Bert Alleyne, Mark E. Thompson, Peter B. MacKenzie, Bin Ma