Patents by Inventor Michael S. Weaver
Michael S. Weaver 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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Patent number: 11302872Abstract: A composition of matter that includes a novel combination of host compounds containing indol-fused hosts and emissive dopants containing benzofuran or azabenzofuran ligand is disclosed,Type: GrantFiled: August 18, 2016Date of Patent: April 12, 2022Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: Lichang Zeng, Vadim Adamovich, Alexey Borisovich Dyatkin, Walter Yeager, Chuanjun Xia, Zhiqiang Ji, Michael S. Weaver
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Publication number: 20220020945Abstract: The present invention relates to OLED devices and stacks for OLED devices that include a symmetric emissive-layer architecture. In one embodiment, the present invention relates to an emissive stack having three layers, wherein the top and bottom layers emit light in the same or similar color region while the middle layer emits light in a different color region than the other two layers. In such an embodiment, the three layers are in contact with each other with no other layers in between. The symmetric emissive-layer architecture of the present invention can be used to improve the color stability of OLED devices.Type: ApplicationFiled: October 1, 2021Publication date: January 20, 2022Inventors: Hitoshi Yamamoto, Xin Xu, Michael S. Weaver, Vadim Adamovich
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Publication number: 20210406668Abstract: A hybrid neuromorphic computing device is provided, in which artificial neurons include light-emitting devices that provide weighted sums of inputs as light output. The output is detected by a photodetector and converted to an electrical output. Each neuron may receive output from one or more other neurons as initial input. Interconnects between neurons may be optical, electrical, or a combination thereof. The neurons also may provide imaging sensor and/or display capabilities.Type: ApplicationFiled: June 28, 2021Publication date: December 30, 2021Inventors: Michael HACK, Paul Prucnal, Thomas Ferreira de Lima, Michael S. WEAVER, Simon Bilodeau
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Publication number: 20210359026Abstract: Device structures are provided that include one or more plasmonic OLEDs and zero or more non-plasmonic OLEDs. Each plasmonic OLED includes an enhancement layer that includes a plasmonic material which exhibits surface plasmon resonance that non-radiatively couples to an organic emissive material and transfers excited state energy from the emissive material to a non-radiative mode of surface plasmon polaritons in the plasmonic OLED.Type: ApplicationFiled: June 2, 2021Publication date: November 18, 2021Inventors: Nicholas J. THOMPSON, Michael S. WEAVER, Michael FUSELLA
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Patent number: 11145837Abstract: The present invention relates to OLED devices and stacks for OLED devices that include a symmetric emissive-layer architecture. In one embodiment, the present invention relates to an emissive stack having three layers, wherein the top and bottom layers emit light in the same or similar color region while the middle layer emits light in a different color region than the other two layers. In such an embodiment, the three layers are in contact with each other with no other layers in between. The symmetric emissive-layer architecture of the present invention can be used to improve the color stability of OLED devices.Type: GrantFiled: November 19, 2019Date of Patent: October 12, 2021Assignee: Universal Display CorporationInventors: Hitoshi Yamamoto, Xin Xu, Michael S. Weaver, Vadim Adamovich
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Publication number: 20210313545Abstract: An OLED is disclosed that includes an enhancement layer having optically active metamaterials, or hyperbolic metamaterials, which transfer radiative energy from the organic emissive material to a non-radiative mode, wherein the enhancement layer is disposed over the organic emissive layer opposite from the first electrode, and is positioned no more than a threshold distance away from the organic emissive layer, wherein the organic emissive material has a total non-radiative decay rate constant and a total radiative decay rate constant due to the presence of the enhancement layer, and the threshold distance is where the total non-radiative decay rate constant is equal to the total radiative decay rate constant; and an outcoupling layer disposed over the enhancement layer, wherein the outcoupling layer scatters radiative energy from the enhancement layer to free space.Type: ApplicationFiled: June 22, 2021Publication date: October 7, 2021Inventors: Nicholas J. Thompson, Marc A. Baldo, Michael S. Weaver, Vinod M. Menon
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Patent number: 11094891Abstract: A dual host system for OLEDs that contains hole-transporting indolocarbazole and electron-transporting indolocarbazole exhibiting superior performance in the OLEDs is disclosed.Type: GrantFiled: March 2, 2017Date of Patent: August 17, 2021Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: Lichang Zeng, Vadim Adamovich, Chuanjun Xia, Michael S. Weaver
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Patent number: 11075363Abstract: An OLED is disclosed that includes an enhancement layer having optically active metamaterials, or hyperbolic metamaterials, which transfer radiative energy from the organic emissive material to a non-radiative mode, wherein the enhancement layer is disposed over the organic emissive layer opposite from the first electrode, and is positioned no more than a threshold distance away from the organic emissive layer, wherein the organic emissive material has a total non-radiative decay rate constant and a total radiative decay rate constant due to the presence of the enhancement layer, and the threshold distance is where the total non-radiative decay rate constant is equal to the total radiative decay rate constant; and an outcoupling layer disposed over the enhancement layer, wherein the outcoupling layer scatters radiative energy from the enhancement layer to free space.Type: GrantFiled: July 26, 2019Date of Patent: July 27, 2021Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: Nicholas J. Thompson, Marc A. Baldo, Michael S. Weaver, Vinod M. Menon
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Publication number: 20210217971Abstract: A compound having an ancillary ligand L1 having the formula: Formula I is disclosed. The ligand L1 is coordinated to a metal M having an atomic number greater than 40, and two adjacent substituents are optionally joined to form into a ring. Such compound is suitable for use as emitters in organic light emitting devices.Type: ApplicationFiled: March 23, 2021Publication date: July 15, 2021Applicant: Universal Display CorporationInventors: PIERRE-LUC T. BOUDREAULT, Alexey Dyatkin, David Zenan Li, Scott Joseph, Chuanjun Xia, Hitoshi Yamamoto, Michael S. Weaver, Bert Alleyne, James Fiordeliso
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Patent number: 11056540Abstract: Device structures are provided that include one or more plasmonic OLEDs and zero or more non-plasmonic OLEDs. Each plasmonic OLED includes an enhancement layer that includes a plasmonic material which exhibits surface plasmon resonance that non-radiatively couples to an organic emissive material and transfers excited state energy from the emissive material to a non-radiative mode of surface plasmon polaritons in the plasmonic OLED.Type: GrantFiled: March 10, 2020Date of Patent: July 6, 2021Assignee: Universal Display CorporationInventors: Nicholas J. Thompson, Michael S. Weaver, Michael Fusella
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Patent number: 10991896Abstract: A compound having an ancillary ligand L1 having the formula: Formula I is disclosed. The ligand L1 is coordinated to a metal M having an atomic number greater than 40, and two adjacent substituents are optionally joined to form into a ring. Such compound is suitable for use as emitters in organic light emitting devices.Type: GrantFiled: September 12, 2018Date of Patent: April 27, 2021Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: Pierre-Luc T. Boudreault, Alexey Dyatkin, David Zenan Li, Scott Joseph, Chuanjun Xia, Hitoshi Yamamoto, Michael S. Weaver, Bert Alleyne, James Fiordeliso
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Publication number: 20210074931Abstract: A compound of: is disclosed. In Formula IV, ring B and ring C are each independently a 5 or 6-membered carbocyclic or heterocyclic ring; A-B represents a bonded pair of carbocyclic or heterocyclic rings coordinated to a metal M via a nitrogen atom in ring A and an sp2 hybridized atom in ring B; A-C represents a bonded pair of carbocyclic or heterocyclic rings; M is a metal having an atomic number greater than 40; L? is a monoanionic bidentate ligand; m is the oxidation state of the metal M; and n is at least 1.Type: ApplicationFiled: November 19, 2020Publication date: March 11, 2021Applicant: Universal Display CorporationInventors: Chuanjun XIA, Bert ALLEYNE, Raymond C. KWONG, James FIORDELISO, Michael S. WEAVER, Nasrin ANSARI, Alan DEANGELIS, Dinesh RAYABARAPU, Vadim ADAMOVICH
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Publication number: 20210009615Abstract: 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: ApplicationFiled: September 24, 2020Publication date: January 14, 2021Applicant: Universal Display CorporationInventors: Lichang ZENG, Zhiqiang JI, Eric A. MARGULIES, Paul M. LAHTI, Michael S. WEAVER
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Patent number: 10892426Abstract: An OLED containing an emissive dopant that is a heteroleptic complex having the formula Ir(LA-B)2(LC-D) is disclosed.Type: GrantFiled: January 14, 2020Date of Patent: January 12, 2021Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: Chuanjun Xia, Bert Alleyne, Raymond C. Kwong, James Fiordeliso, Michael S. Weaver, Nasrin Ansari, Alan Deangelis, Dinesh Rayabarapu, Vadim Adamovich
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Patent number: 10879487Abstract: Embodiments of the disclosed subject matter may provide a wearable device that includes an organic light emitting diode (OLED) light source to output light. At least one emissive layer of the OLED light source of the wearable device may have a plurality of segments that are independently controllable to output the light at a duty cycle of less than 100%. The OLED light source of the wearable device may be encapsulated.Type: GrantFiled: September 19, 2019Date of Patent: December 29, 2020Assignee: Universal Display CorporationInventors: Michael Hack, Michael S. Weaver, Julia J. Brown
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Publication number: 20200388785Abstract: Embodiments of the disclosed subject matter may provide a wearable device that includes an organic light emitting diode (OLED) light source to output light. At least one emissive layer of the OLED light source of the wearable device may have a plurality of segments that are independently controllable to output the light at a duty cycle of less than 100%. The OLED light source of the wearable device may be encapsulated.Type: ApplicationFiled: August 19, 2020Publication date: December 10, 2020Inventors: Michael HACK, Michael S. WEAVER, Julia J. BROWN
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Publication number: 20200373510Abstract: Provided is an OLED that includes in its emissive region a first compound, a second compound, and a third compound, where the first compound is capable of functioning as a phosphorescent emitter in an OLED at room temperature, the second compound meets at least one of the following conditions: (1) the second compound is capable of functioning as a TADF emitter in an OLED at room temperature; and (2) the second compound is capable of forming an exciplex with the first compound in an OLED at room temperature, and the third compound is a fluorescent compound that functions as an emitter in the OLED of the present disclosure at room temperature.Type: ApplicationFiled: May 5, 2020Publication date: November 26, 2020Applicant: UNIVERSAL DISPLAY CORPORATIONInventors: Chun LIN, Tyler FLEETHAM, Michael S. WEAVER
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Patent number: 10837515Abstract: A shock absorber with a pressure tube, a reserve tube, and a piston slidably disposed within the pressure tube to define first and second working chambers. A reservoir chamber is positioned between the pressure tube and the reserve tube. A damper baffle tube, positioned in the reservoir chamber, defines a baffle tube chamber between the pressure tube and the damper baffle tube. One or more electromechanical valves are positioned in fluid communication with the first working chamber and the baffle tube chamber. The damper baffle tube includes a compliant portion that has a sealing surface configured to move into and out of contact with the pressure tube in response to fluctuations in fluid pressure in the baffle tube chamber so as to form a check valve that holds a constrained volume of hydraulic fluid in the baffle tube chamber.Type: GrantFiled: February 11, 2019Date of Patent: November 17, 2020Assignee: Tenneco Automotive Operating Company Inc.Inventors: Matthew L. Roessle, Darrell G. Breese, Thomas P. Mallin, Michael S. Weaver
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Patent number: 10822361Abstract: 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: GrantFiled: February 7, 2018Date of Patent: November 3, 2020Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: Lichang Zeng, Zhiqiang Ji, Eric A. Margulies, Paul M. Lahti, Michael S. Weaver
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Publication number: 20200343457Abstract: Disclosed is electron/exciton blocking material that is a compound of Formula I or Formula II that is useful in improving the EQE of OLEDs. Also disclosed are OLEDs incorporating the electron/exciton blocking materials in their electron/exciton blocking layers and display devices incorporating such OLEDs.Type: ApplicationFiled: April 23, 2020Publication date: October 29, 2020Applicant: Universal Display CorporationInventors: Michael S. WEAVER, Nicholas J. THOMPSON, Vadim ADAMOVICH, Jerald FELDMAN, Chun LIN