Patents by Inventor Chuanjun Xia
Chuanjun Xia 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: 20250043174Abstract: Provided are an organic electroluminescent material and a device comprising the same. The organic electroluminescent material is a metal complex including a ligand La having a structure of Formula 1 and a ligand Lb having a structure of Formula 2. These new metal complexes, when applied to electroluminescent devices, can reduce the full width at half maximum of the device to make the maximum emission wavelength blue-shifted, thereby obtaining more saturated green light, and can also improve the efficiency of the device, thereby helping improve the comprehensive performance of the device. The metal complexes have great advantages and broad prospects in industrial applications. Further provided are an organic electroluminescent device including the metal complex and a composition including the metal complex.Type: ApplicationFiled: July 25, 2024Publication date: February 6, 2025Inventors: Zheng WANG, Zhen WANG, Hongbo LI, Wei CAI, Chi Yuen Raymond Kwong, Chuanjun Xia
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Patent number: 12207550Abstract: Organic electroluminescent materials and devices are disclosed. The organic electroluminescent materials are novel dehydrobenzodiimidazole or dehydrobenzodipyrrole or its analogous structure compounds, which can be used as charge transporting materials or charge injection materials or the like in an electroluminescent device. These novel compounds have deep LUMO energy level, and have better potential and excellent application prospecty in the field of charge-transporting materials, charge injection materials or the like. An organic electroluminescent device and a compound formulation are also disclosed.Type: GrantFiled: January 5, 2021Date of Patent: January 21, 2025Assignee: BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD.Inventors: Hualong Ding, Chuanjun Xia, Renmao Liu, Zhihao Cui, Chi Yuen Raymond Kwong
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Patent number: 12201011Abstract: Novel organic compounds comprising ligands with deuterium substitution are provided. In particular, the compound is an iridium complex comprising methyl-d3 substituted ligands. The compounds may be used in organic light emitting devices to provide devices having improved color, efficiency and lifetime.Type: GrantFiled: June 10, 2019Date of Patent: January 14, 2025Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: Chuanjun Xia, James Fiordeliso, Raymond Kwong
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Patent number: 12201012Abstract: This invention discloses iridium complexes containing phenylpyridine ligand wherein there is an aryl or heterocyclic ring fused into phenyl ring. The iridium complexes showed desired device performance.Type: GrantFiled: November 25, 2020Date of Patent: January 14, 2025Assignee: Universal Display CorporationInventors: Bin Ma, Chuanjun Xia
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Patent number: 12201014Abstract: Provided are a metal complex, an electroluminescent device containing the same, and a use thereof. The metal complex has a structure of M(La)m(Lb)n and can more effectively fine-tune a light-emitting color and adjust an emission peak width, thereby narrowing a full width at half maximum, making the light-emitting color more saturated, and improving device efficiency, current efficiency, and external quantum efficiency.Type: GrantFiled: January 15, 2021Date of Patent: January 14, 2025Assignee: BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD.Inventors: Cuifang Zhang, Nannan Lu, Zhihong Dai, Chi Yuen Raymond Kwong, Chuanjun Xia
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Publication number: 20250011356Abstract: Provided are an organic electroluminescent material and a device comprising the same. The organic electroluminescent material is a metal complex comprising a ligand La having a structure of Formula 1. Applied to an electroluminescent device, these new metal complexes can reduce a full width at half maximum and capacitance of the device. The organic electroluminescent device can improve the response time and refresh rate of an OLED display device at a low grayscale and can maintain excellent device performance, thereby contributing to improving the overall performance of the device. The metal complex has a great advantage and a broad prospect in industrial application. Further provided are an organic electroluminescent device comprising the metal complex and a composition comprising the metal complex.Type: ApplicationFiled: June 28, 2024Publication date: January 9, 2025Applicant: BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD.Inventors: Zhen Wang, Zheng Wang, Hongbo Li, Wei Cai, Chi Yuen Raymond Kwong, Chuanjun Xia
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Publication number: 20250008834Abstract: A composition formed of a mixture of two compounds having similar thermal evaporation properties that are pre-mixed into an evaporation source that can be used to co-evaporate the two compounds into an emission layer in OLEDs via vacuum thermal evaporation process is disclosed. The first and second compounds can have an evaporation temperature T1 and T2, respectively, of 150 to 350° C., and the absolute value of T1-T2 can be less than 20° C. The first compound can have a concentration C1 in the mixture and a concentration C2 in a film formed by evaporating the mixture in a vacuum deposition tool at a constant 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, where the absolute value of (C1-C2)/C1 is less than 5%.Type: ApplicationFiled: September 9, 2024Publication date: January 2, 2025Applicant: Universal Display CorporationInventors: Chuanjun XIA, Chun LIN, Ting-Chih WANG
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Publication number: 20250008836Abstract: A compound comprising a ligand LA, having a structure of Formula I, is provided. In Formula I, A1 to A8 are each independently CR or N; at least two adjacent ones of A1 to A8 are CR and the Rs are joined together to form a six-membered ring fused to ring A or ring C; X is O, S, or Se; each R and RB is independently hydrogen or a substituent; any adjacent substituents are optionally joined or fused into a ring; the ligand LA is coordinated to a metal M; the metal M is bonded to ring A through a M-C bond; the metal M can be coordinated to other ligands; and the ligand LA is optionally linked with other ligands. Formulations, OLEDs, and consumer products containing such compounds are also disclosed.Type: ApplicationFiled: July 23, 2024Publication date: January 2, 2025Applicant: Universal Display CorporationInventors: Mingjuan SU, Walter YEAGER, Alan DEANGELIS, Bin MA, Jui-Yi TSAI, Lichang ZENG, Chuanjun XIA
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Publication number: 20240415005Abstract: Provided are an organic electroluminescent material and device. The organic electroluminescent material is a compound having a structure of Formula 1. The compound has bluer and more saturated luminescence. These novel compounds may be used as light-emitting materials in organic electroluminescent devices and can provide better device performance such as higher current efficiency. Further provided are an organic electroluminescent device and compound composition comprising the compound having the structure of Formula 1.Type: ApplicationFiled: May 30, 2024Publication date: December 12, 2024Applicant: BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD.Inventors: Ming Sang, Chunliang Zhao, Xuechao Tian, Liuhuan Cai, Chi Yuen Raymond Kwong, Chuanjun Xia
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Publication number: 20240415015Abstract: Provided are a mixture comprising a 5- and/or 6-membered ring fused structure, a composition, an organic electroluminescent device and an electronic device thereof. The mixture, the composition, the organic electroluminescent device and the electronic device thereof comprise at least three compounds, wherein one of the compounds comprises a fused structure formed by fusing at least four 5- and/or 6-membered rings and the fused structure is not triphenylene. The composition and the mixture can be used as host materials in organic electroluminescent devices to obtain electroluminescent devices with excellent comprehensive performance and in particular, to achieve a significant improvement in lifetime while maintaining high-level device efficiency.Type: ApplicationFiled: May 29, 2024Publication date: December 12, 2024Inventors: Le WANG, Qiang WANG, Ziyan ZHANG, Gaoqi ZHANG, Chi Yuen Raymond KWONG, Chuanjun XIA
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Patent number: 12167674Abstract: A metal complex with fluorine substitution is disclosed, which employs a series of new ligands containing fluorine-substituted structure can be used as a luminescent material in an emissive layer of an electroluminescent device. By using the metal complex can provide much longer device lifetime, better thermal stability, no blue-shifted illumination, and higher luminous efficiency. An electroluminescent device and compound formulation are also disclosed.Type: GrantFiled: September 13, 2019Date of Patent: December 10, 2024Assignee: Beijing Summer Sprout Technology Co., Ltd.Inventors: Wei Cai, Ming Sang, Zhen Wang, Tao Wang, Chi Yuen Raymond Kwong, Chuanjun Xia
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Publication number: 20240397810Abstract: An OLED including an organic layer that contains metal complex compounds that are useful as a phosphorescent emitter is disclosed. The metal complex compounds include ligands that incorporate fluorinated side chains and has at least one substituent R selected from the group consisting of partially fluorinated alkyl, partially fluorinated cycloalkyl, and combinations thereof, wherein R is directly bonded to an aromatic ring, In the compound, C having an F attached thereto is separated by at least one carbon atom from the aromatic ring.Type: ApplicationFiled: July 29, 2024Publication date: November 28, 2024Applicant: UNIVERSAL DISPLAY CORPORATIONInventors: Jui-Yi TSAI, Alexey Borisovich Dyatkin, Pierre-Luc T. Boudreault, Walter Yeager, Chuanjun Xia
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Patent number: 12156464Abstract: A composition formed of a mixture of two compounds having similar thermal evaporation properties that are pre-mixed into an evaporation source that can be used to co-evaporate the two compounds into an emission layer in OLEDs via vacuum thermal evaporation process is disclosed. The first and second compounds can have an evaporation temperature T1 and T2, respectively, of 150 to 350° C., and the absolute value of T1-T2 can be less than 20° C. The first compound can have a concentration C1 in the mixture and a concentration C2 in a film formed by evaporating the mixture in a vacuum deposition tool at a constant 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, where the absolute value of (C1?C2)/C1 is less than 5%.Type: GrantFiled: June 17, 2019Date of Patent: November 26, 2024Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: Chuanjun Xia, Chun Lin, Ting-Chih Wang
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Patent number: 12156466Abstract: Provided are an organic electroluminescent material and a device comprising the same. The organic electroluminescent material is a novel compound having a parent core structure formed by fusing indole and pyrrole with an azamacrocycle and bonded with benzoquinazoline or benzoquinoxaline and similar structures thereof. The organic electroluminescent material may be used as a host material in an electroluminescent device. The novel compound can provide better device performance in the electroluminescent device. Further provided are an electroluminescent device and a compound formulation.Type: GrantFiled: November 24, 2020Date of Patent: November 26, 2024Assignee: BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD.Inventors: Qiang Wang, Le Wang, Junfei Wang, Chi Yuen Raymond Kwong, Chuanjun Xia
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Patent number: 12145954Abstract: A silicon-containing electron transporting material and its application are disclosed. The silicon-containing electron transporting material employs a silicon-containing compound with a novel structure containing one or more silicon atoms and a specific group. The compound can be used as an electron transporting layer of an electroluminescent device, which can effectively improve the lifetime of the device and improve device performance. An electroluminescent device and compound formulation are also disclosed.Type: GrantFiled: October 24, 2019Date of Patent: November 19, 2024Assignee: Beijing Summer Sprout Technology Co., Ltd.Inventors: Xiao Chen, Chuanjun Xia, Chi Yuen Raymond Kwong
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Publication number: 20240376088Abstract: Provided are an organic electroluminescent material and device thereof. The organic electroluminescent material is a compound having a structure of Formula 1. The compound can be used as a host material, an electron transporting material or a hole blocking material in the organic electroluminescent device and can significantly improve the overall performance of the device, for example, a low drive voltage, high device efficiency and a significantly improved device lifetime. Further provided are an organic electroluminescent device including the compound of Formula 1 and a compound composition.Type: ApplicationFiled: January 12, 2024Publication date: November 14, 2024Inventors: Yang WANG, Feng LI, Chi Yuen Raymond KWONG, Chuanjun XIA
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Publication number: 20240373738Abstract: New organometallic complexes having bis- or tris-heteroleptic ligands and large aspect ratio in one direction and their use in OLEDs to enhance the efficiency is disclosed. Such compounds can have a structure of Formula III, where rings A, B, C, and D are ring; L1 and L3 each a direct bond or a linking group; n1 and n2 are 0 or 1; if n1 or n2 is 1, then L2 or L4 is a direct bond or a linking group, and if n1 or n2 is 0, L2 or L4 is not present; Q1, Q2, Q3 and Q4 are a direct bond or oxygen; ring A is trans to ring D, ring B is trans to ring C in a square-planar coordination configuration; M2 is Pt, and the compound comprises at least one Pt-carbene bond.Type: ApplicationFiled: December 19, 2023Publication date: November 7, 2024Applicant: Universal Display CorporationInventors: Zhiqiang JI, Lichang ZENG, Jui-Yi TSAI, Chun LIN, Chuanjun XIA, Alexey Borisovich DYATKIN, Walter YEAGER
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Publication number: 20240368465Abstract: Provided are an organic electroluminescent material and a device comprising the same. The organic electroluminescent material is a metal complex having a structure of Formula 1, and the structure of Formula 1 includes a ligand La having a specific substituent and a ligand Lb having a specific substituent. When applied to the electroluminescent devices, these new compounds can provide excellent device performance such as improved device efficiency, an extended device lifetime, and reduced device capacitance, and facilitate the improvement of the overall performance of the devices. Further provided are an organic electroluminescent device including the metal complex and a composition including the metal complex.Type: ApplicationFiled: March 25, 2024Publication date: November 7, 2024Applicant: BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD.Inventors: Hongbo Li, Zhen Wang, Zheng Wang, Wei Cai, Chi Yuen Raymond Kwong, Chuanjun Xia
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Patent number: 12127470Abstract: A compound of: is disclosed. In Formula III, 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: GrantFiled: September 16, 2022Date of Patent: October 22, 2024Assignee: 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: 20240349590Abstract: A compound having the formula Ir(LA)n(LB)3-n is disclosed wherein LA is an aza-DBF ligand and LB is an alkyl-substituted phenylpyridine ligand, wherein the compound has a structure according to Formula I: wherein each of A1 to A8 comprise carbon or nitrogen; wherein at least one of A1 to A8 is nitrogen; wherein ring B is bonded to ring A through a C—C bond; wherein the iridium is bonded to ring A through a Ir—C bond; wherein X is O, S, or Se; wherein R? and R? each independently represent mono-, di-substitution, or no substitution; wherein any adjacent substitutions in R?, R?, R1, R2, R3, R4, R5, and R6 are optionally linked together to form a ring; wherein R1, R2, R?, and R? are each independently selected from a variety of substituents; wherein R3, R4, R5, and R6 are each independently selected from the group consisting of hydrogen, deuterium, alkyl, cycloalkyl, and combinations thereof; wherein n is an integer from 1 to 3; and wherein total number of carbons in at least one of the pairs R3 and R4, andType: ApplicationFiled: May 15, 2024Publication date: October 17, 2024Applicant: Universal Display CorporationInventors: Bin MA, Walter YEAGER, Edward BARRON, Alan DEANGELIS, Chuanjun XIA, Vadim ADAMOVICH, Scott BEERS, Harvey WENDT, Suman LAYEK