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).

  • Patent number: 11329237
    Abstract: Boron and nitrogen containing heterocyclic compounds are disclosed, which can be used as emitters, hosts, charge blocking materials, charge transporting materials, etc. in an electroluminescent device. These novel compounds can offer very narrow emissive spectrum, and obtain high saturated deep blue emission. Also disclosed are an organic light-emitting device and a formulation.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: May 10, 2022
    Assignee: Beijing Summer Sprout Technology Co., Ltd.
    Inventor: Chuanjun Xia
  • Patent number: 11325934
    Abstract: Organic luminescent materials containing tetraphenylene ligands are disclosed, which can be used as emitters in the emissive layer of an organic electroluminescent device. The organic luminescent materials is metal complexes which comprise a new series of tetraphenylene ligands. The use of these novel ligands can decrease aggregation in the solid state and improve the lifetime of device. Also disclosed are an electroluminescent device and a formulation.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: May 10, 2022
    Assignee: BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD.
    Inventor: Chuanjun Xia
  • Publication number: 20220140252
    Abstract: Disclosed are a novel organic electroluminescent material and a device thereof. The organic electroluminescent material is a novel compound having the structure in Formula 1. The organic electroluminescent material has LUMO energy levels of different depths, can be used as a single hole injection material, and is also an excellent p-type dopant material, which is of great significance for the development of new high-performance hole injection materials. Also disclosed are an organic electroluminescent device comprising the novel compound and a compound composition comprising the novel compound.
    Type: Application
    Filed: January 18, 2022
    Publication date: May 5, 2022
    Applicant: BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD.
    Inventors: Hualong Ding, Chi Yuen Raymond Kwong, Chuanjun Xia
  • Publication number: 20220131093
    Abstract: 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: Application
    Filed: January 15, 2021
    Publication date: April 28, 2022
    Inventors: Cuifang ZHANG, Nannan LU, Zhihong DAI, Chi Yuen Raymond Kwong, Chuanjun XIA
  • Patent number: 11316113
    Abstract: Novel organic compounds comprising a bicarbazole core are provided. In particular, the compounds has a 3,3?-bicarbazole core substituted at the 9-position with a triazine or pyrimidine. The compounds may be used in organic light emitting devices to provide devices having improved efficiency and improved lifetime.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: April 26, 2022
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Chuanjun Xia, Raymond Kwong, Ken-Tsung Wong, Ming-Cheng Kuo
  • Publication number: 20220115601
    Abstract: Organic materials containing dibenzofuran or aza-dibenzofuran moiety are disclosed in this application. These materials are expected to improve OLED device performance.
    Type: Application
    Filed: December 22, 2021
    Publication date: April 14, 2022
    Inventors: Lichang Zeng, Zeinab Elshenawy, Walter Yeager, Alexey Borisovich Dyatkin, Chuanjun Xia
  • Patent number: 11302872
    Abstract: 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: Grant
    Filed: August 18, 2016
    Date of Patent: April 12, 2022
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Lichang Zeng, Vadim Adamovich, Alexey Borisovich Dyatkin, Walter Yeager, Chuanjun Xia, Zhiqiang Ji, Michael S. Weaver
  • Publication number: 20220109118
    Abstract: Provided is a light-emitting material with polycyclic ligand. The light-emitting material is a metal complex with polycyclic ligand and may be used as a light-emitting material in an electroluminescent device. While maintaining a very narrow FWHM, these novel metal complexes can better adjust the light-emitting color of the device, reduce the driving voltage of the device or maintain the driving voltage at a low level, improve device efficiency, greatly increase the lifetime of the device, and provide better device performance. Further provided are an electroluminescent device and a compound composition.
    Type: Application
    Filed: April 27, 2021
    Publication date: April 7, 2022
    Inventors: Cuifang ZHANG, Qi ZHANG, Nannan LU, Zhihong DAI, Chi Yuen Raymond Kwong, Chuanjun Xia
  • Patent number: 11289659
    Abstract: Novel electroluminescent devices containing bicarbazole triazine compounds as emissive dopants are described. Devices incorporating this class of compounds exhibit delayed fluorescence characteristics that showed EQE's far exceeding the theoretical limit for a conventional fluorescent device.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: March 29, 2022
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Chuanjun Xia, Ken-Tsung Wong, Jason Brooks, James Esler, Raymond Kwong
  • Publication number: 20220077404
    Abstract: Provided is an organic electroluminescent device. The electroluminescent device includes an anode, a cathode and an organic layer disposed between the anode and the cathode, where the organic layer includes a first compound having a structure of H1-L1-E1 and a second compound having a structure of H2-L2-E2. The electroluminescent device containing a novel material combination has a low driving voltage, high device efficiency and a significantly improved device lifetime, which greatly improves the overall performance of the device. Further provided are an electronic equipment including the preceding electroluminescent device and use of the electroluminescent device in an electronic element module, a display apparatus or a lighting apparatus.
    Type: Application
    Filed: September 7, 2021
    Publication date: March 10, 2022
    Applicant: BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD.
    Inventors: Han Zhang, Le Wang, Junfei Wang, Qiang Wang, Menglan Xie, Chi Yuen Raymond Kwong, Chuanjun Xia
  • Patent number: 11245080
    Abstract: Organic materials containing dibenzofuran or aza-dibenzofuran moiety are disclosed in this application. These materials are expected to improve OLED device performance.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: February 8, 2022
    Assignee: Universal Display Corporation
    Inventors: Lichang Zeng, Zeinab Elshenawy, Walter Yeager, Alexey Borisovich Dyatkin, Chuanjun Xia
  • Publication number: 20220037598
    Abstract: A compound comprising a heteroleptic iridium complex having a structure of Formula II, is provided. In Formula II, each of R1, R2, R3, R4, R5, and R6, is independently selected from the group consisting of hydrogen, deuterium, cycloalkyl, deuterated cycloalkyl, alkyl, and deuterated alkyl; at least one of R1, R2, R3, R4, R5, and R6 is not hydrogen or deuterium; and each R and R? is independently selected from a variety of substitutions. OLEDs and formulations containing the compound of Formula II are also provided.
    Type: Application
    Filed: October 6, 2021
    Publication date: February 3, 2022
    Applicant: Universal Display Corporation
    Inventors: BIN MA, Alan Deangelis, Chuanjun Xia, Bert Alleyne
  • Patent number: 11239430
    Abstract: Boron and nitrogen containing heterocyclic compounds are disclosed, which can be used as emitters, hosts, charge blocking materials, charge transporting materials, etc. in an electroluminescent device. These novel compounds can offer very narrow emissive spectrum, and obtain high saturated deep blue emission. Also disclosed are an organic light-emitting device and a formulation.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: February 1, 2022
    Assignee: BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD.
    Inventor: Chuanjun Xia
  • Patent number: 11239432
    Abstract: A new series of iptycene derivatives as ligands for metal complexes that are useful as phosphorescent emitters for incorporation into OLEDs are disclosed. Provided are compositions that include a compound including a chemical group of Formula I wherein (1) the chemical group of Formula I is included as at least one of the substituents in a bidentate ligand forming the metal complex, or (2) when the substituents in a bidentate ligand forming the metal complex are attached to a six-membered ring, at least one of the such substituents join adjacent substituents and fuse into the six-membered ring attached thereto to form a chemical group having Formula I.
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: February 1, 2022
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Mingjuan Su, Lichang Zeng, Chuanjun Xia
  • Publication number: 20220020935
    Abstract: Disclosed are a novel organic electroluminescent material and a device thereof. Such a novel organic electroluminescent material has a structure of Formula 1, and when applied to the organic electroluminescent device, can improve the balance of electrons and holes in the organic electroluminescent device and thus bring excellent device effects such as the improvement of external quantum efficiency, current efficiency, and service life. The novel organic electroluminescent material can be used to prepare organic semiconductor devices and is suitable for different types of organic semiconductor devices, including but not limited to fluorescent OLEDs, phosphorescent OLEDs, white OLEDs, laminated OLEDs, OTFTs, OPVs, etc. Further disclosed are an electroluminescent device comprising the organic electroluminescent material and a compound formulation comprising the organic electroluminescent material.
    Type: Application
    Filed: July 16, 2021
    Publication date: January 20, 2022
    Applicant: BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD.
    Inventors: Hualong Ding, Chi Yuen Raymond Kwong, Chuanjun Xia
  • Patent number: 11228002
    Abstract: A compound having a formula M(LA)(LB)(LC) is disclosed. Each of ligands LA and LB are mono-anionic bidentate ligands coordinated to metal M forming a 5-member cyclometalated ring. Ligands LA and LB are covalently linked by a first linking group, where there is at least one loop of M-LA-first linking group-LB-M having only carbocyclic or heterocyclic groups in the loop other than M. Wherein the first linking group includes multiple aliphatic or aromatic rings that are separated by at least one single bond, where each ring in the first linking group is part of the backbone of the loop. Devices, such as organic light emitting diodes, including the compounds are also disclosed.
    Type: Grant
    Filed: August 8, 2017
    Date of Patent: January 18, 2022
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Suman Layek, Chuanjun Xia
  • Patent number: 11228003
    Abstract: A compound having a formula M(LA)(LB)(LC) is described. In formula M(LA)(LB)(LC), ligands LA and LB are each a mono-anionic bidentate ligand coordinated to metal M forming a 5-member cyclometalated ring and ligands LA and LB are covalently linked by a linking group. There is at least one loop of M-LA-linking group-LB-M having only arylene or heteroarylene groups in the loop other than M. In the compound, each ring in the linking group is part of a backbone of the loop; and either (i) the loop comprises a specific DBX moiety and the linking group comprises two or more arylene or heteroarylene groups, or (ii) the linking group comprises three or more arylene or heteroarylene groups. Formulations, OLEDs, and consumer product containing the compound are also disclosed.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: January 18, 2022
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Suman Layek, Chuanjun Xia
  • Publication number: 20220002329
    Abstract: Provided are a phosphorescent organometallic complex and a use thereof. The metal complex has a ligand with a structure represented by Formula 1 and may be used as a light-emitting material in an electroluminescent device. These novel metal complexes can not only maintain low voltage and improve device efficiency in electroluminescent devices but also greatly reduce the half-peak width of light emitted by these devices so as to greatly improve color saturation of the light emitted by these devices, thereby providing better device performance. Further provided are an electroluminescent device and a compound formulation.
    Type: Application
    Filed: July 24, 2020
    Publication date: January 6, 2022
    Inventors: Wei CAI, Ming SANG, Chi Yuen Raymond Kwong, Chuanjun XIA, Zhen WANG, Tao WANG, Hongbo LI
  • Publication number: 20210403496
    Abstract: Provided are a phosphorescent organometallic complex and a use thereof. The metal complex has a ligand with a structure represented by Formula 1 and may be used as a light-emitting material in an electroluminescent device. These novel metal complexes can not only maintain high device efficiency and low voltage in electroluminescent devices but also allow these devices to have narrower half-peak width so as to greatly improve color saturation of light emitted by these devices, thereby providing better device performance. Further provided are an electroluminescent device and a compound formulation.
    Type: Application
    Filed: July 24, 2020
    Publication date: December 30, 2021
    Inventors: Wei CAI, Ming SANG, Chi Yuen Raymond Kwong, Chuanjun XIA, Zhen WANG, Tao WANG, Hongbo LI
  • Patent number: 11201290
    Abstract: Novel tetraphenylene anthracene compounds are disclosed, which can be used as charge transporting materials, emitters, hosts in an organic electroluminescent device. These novel compounds offer better device performance. Also disclosed are an electroluminescent device and a formulation.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: December 14, 2021
    Assignee: BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD.
    Inventor: Chuanjun Xia