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: 12295262
    Abstract: The present invention relates in part to compounds containing indolocarbazole and terphenyl building blocks. These compounds are useful for application in organic electroluminescent devices wherein the combination of indolocarbazoles with terphenyl groups leads to novel compounds that demonstrate superior device performance.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: May 6, 2025
    Assignee: Universal Display Corporation
    Inventors: Lichang Zeng, Zhiqiang Ji, Walter Yeager, Alexey Borisovich Dyatkin, Chuanjun Xia
  • Patent number: 12295199
    Abstract: Disclosed is a device that includes an emissive material or region including a host that is doped with a first material as an emitter that is an acceptor and a phosphorescent-capable second material as a sensitizer. The first material and the second material each has a first singlet state and a first triplet state. The first triplet state of the second material is not lower than the first triplet state of the first material. The second material transfers excitons to the first material and the excitons that transition to the first triplet state of the first material can be activated to the first singlet state of the first material through a thermal activation process.
    Type: Grant
    Filed: May 18, 2023
    Date of Patent: May 6, 2025
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Woo-Young So, Jui-Yi Tsai, Chuanjun Xia
  • Patent number: 12289984
    Abstract: Metal complexes containing azabenzothiazole are disclosed, which comprise a new series of ligands containing azabenzothiazole structure. The metal complexes can be used as emitters in the emissive layer of an organic electroluminescent device. The use of these novel metal complexes as emitters in OLED devices leads to more saturated color than the compounds containing benzothiazole ligands. An electroluminescent device and a formulation are also disclosed.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: April 29, 2025
    Assignee: BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD.
    Inventor: Chuanjun Xia
  • Publication number: 20250133952
    Abstract: 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: Application
    Filed: December 12, 2024
    Publication date: April 24, 2025
    Applicant: UNIVERSAL DISPLAY CORPORATION
    Inventors: Pierre-Luc T. Boudreault, Alexey Dyatkin, David Zenan Li, Scott Joseph, Chuanjun Xia, Hitoshi Yamamoto, Michael S. Weaver, Bert Alleyne, James Fiordeliso
  • Patent number: 12284913
    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: December 22, 2021
    Date of Patent: April 22, 2025
    Inventors: Lichang Zeng, Zeinab Elshenawy, Walter Yeager, Alexey Borisovich Dyatkin, Chuanjun Xia
  • Patent number: 12284911
    Abstract: A dual host system for OLEDs that contains hole-transporting indolocarbazole and electron-transporting indolocarbazole exhibiting superior performance in the OLEDs is disclosed.
    Type: Grant
    Filed: July 2, 2021
    Date of Patent: April 22, 2025
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Lichang Zeng, Vadim Adamovich, Chuanjun Xia, Michael Weaver
  • Patent number: 12281082
    Abstract: Disclosed are an electroluminescent material and device. The compound is a compound formed by connecting an indole- and pyrrole-fused azamacrocycle to triazine or a similar structure thereof at a specific position and is used as the host material of the electroluminescent device. These novel compounds have significantly reduced evaporation temperature and better thermal stability, can effectively reduce energy consumption, which more facilitates the device manufacturing process, and in addition, can also effectively improve device efficiency and reduce device drive voltage, which can provide better device performance. Further disclosed are an electroluminescent device, a compound formulation, and a display assembly.
    Type: Grant
    Filed: June 2, 2021
    Date of Patent: April 22, 2025
    Assignee: BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD.
    Inventors: Qiang Wang, Le Wang, Junfei Wang, Han Zhang, Chi Yuen Raymond Kwong, Chuanjun Xia
  • Patent number: 12274157
    Abstract: A compound is disclosed that has a metal coordination complex structure having at least two ligands coordinated to the metal; wherein the compound has a first substituent R1 at one of the ligands' periphery; wherein a first distance is defined as the distance between the metal and one of the atoms in R1 where that atom is the farthest away from the metal among the atoms in R1; wherein the first distance is also longer than any other atom-to-metal distance between the metal and any other atoms in the compound; and wherein when a sphere having a radius r is defined whose center is at the metal and the radius r is the smallest radius that will allow the sphere to enclose all atoms in the compound that are not part of R1, the first distance is longer than the radius r by at least 2.9 ?.
    Type: Grant
    Filed: October 30, 2023
    Date of Patent: April 8, 2025
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Eric A. Margulies, Zhiqiang Ji, Jui-Yi Tsai, Chun Lin, Alexey Borisovich Dyatkin, Mingjuan Su, Bin Ma, Michael S. Weaver, Julia J. Brown, Lichang Zeng, Walter Yeager, Alan Deangelis, Chuanjun Xia
  • Patent number: 12274167
    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: Grant
    Filed: July 16, 2021
    Date of Patent: April 8, 2025
    Assignee: BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD.
    Inventors: Hualong Ding, Chi Yuen Raymond Kwong, Chuanjun Xia
  • Patent number: 12274165
    Abstract: Novel host compounds consisting of carbazole and nitrile groups are disclosed. These compounds are useful in phosphorescent OLEDs.
    Type: Grant
    Filed: December 14, 2022
    Date of Patent: April 8, 2025
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Lichang Zeng, Chuanjun Xia
  • Publication number: 20250107429
    Abstract: 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: Application
    Filed: December 4, 2024
    Publication date: March 27, 2025
    Applicant: Universal Display Corporation
    Inventors: Chuanjun XIA, James Fiordeliso, Raymond Kwong
  • Patent number: 12262630
    Abstract: 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: Grant
    Filed: March 23, 2021
    Date of Patent: March 25, 2025
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Pierre-Luc T. Boudreault, Alexey Dyatkin, David Zenan Li, Scott Joseph, Chuanjun Xia, Hitoshi Yamamoto, Michael S. Weaver, Bert Alleyne, James Fiordeliso
  • Publication number: 20250098530
    Abstract: Provided are an organic electroluminescent material and a device. The organic electroluminescent material is a compound having a structure of Formula 1 and can be used as a host material in an organic electroluminescent device. These new compounds can provide better device performance such as high efficiency and unexpected improvement in lifetime. Further provided are an organic electroluminescent device comprising the compound, a compound composition comprising the compound and an electronic device comprising the compound.
    Type: Application
    Filed: September 5, 2024
    Publication date: March 20, 2025
    Applicant: BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD.
    Inventors: Qiang Wang, Le Wang, Ziyan Zhang, Gaoqi Zhang, Chi Yuen Raymond Kwong, Chuanjun Xia
  • Publication number: 20250089550
    Abstract: Provided are an organic electroluminescent material and device. The organic electroluminescent material is a metal complex comprising a ligand La having a structure of Formula 1 and a ligand Lb having a structure of Formula 2. When applied to electroluminescent devices, these new metal complexes can obtain more saturated green light emission and a lower efficiency roll-off, providing more options for the application of phosphorescent OLED materials and devices in high-brightness scenarios. Meanwhile, the metal complexes have lower device capacitance in the devices and better facilitate an increase in the response rate of OLED display devices at a low grayscale and an increase in the refresh rate of the devices. The metal complexes have great advantages and a broad prospect in industrial applications. Further provided are an organic electroluminescent device comprising the metal complex and a composition comprising the metal complex.
    Type: Application
    Filed: August 29, 2024
    Publication date: March 13, 2025
    Inventors: Zhen WANG, Hongbo LI, Zheng WANG, Wei CAI, Chi Yuen Raymond KWONG, Chuanjun XIA
  • Patent number: 12247150
    Abstract: Novel Iridium complexes having three different bidentate ligands useful for phosphorescent emitters in OLEDs are disclosed. At least one of the three different bidentate ligands is a carbene ligand.
    Type: Grant
    Filed: May 1, 2023
    Date of Patent: March 11, 2025
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Jui-Yi Tsai, Chuanjun Xia, Chun Lin, Adrian U. Palacios, Enrique Oñate, Miguel A. Esteruelas, Pierre-Luc T. Boudreault, Sonia Bajo, Montserrat Oliván
  • Patent number: 12245497
    Abstract: Provided is an organic light-emitting material. The light-emitting material is a series of metal complexes containing a ligand(s) based on isoquinoline which is substituted with deuterium at 3- and 4-position and a ligand(s) based on acetylacetone. The compounds can be used as the light-emitting material in an emissive layer of an organic electroluminescent device. These novel compounds can provide better device performance. Further provided are an electroluminescent device and a compound combination including the light-emitting material.
    Type: Grant
    Filed: January 11, 2021
    Date of Patent: March 4, 2025
    Assignee: BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD.
    Inventors: Renmao Liu, Xinfang Hao, Weizhou Huang, Zhihong Dai, Qi Zhang, Cuifang Zhang, Nannan Lu, Xueyu Lu, Dongdong Zhang, Yongjun Wu, Chi Yuen Raymond Kwong, Chuanjun Xia
  • Publication number: 20250072279
    Abstract: 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: Application
    Filed: November 5, 2024
    Publication date: February 27, 2025
    Inventors: Wei Cai, Ming Sang, Zhen Wang, Tao Wang, Chi Yuen Raymond Kwong, Chuanjun Xia
  • Patent number: 12239011
    Abstract: A compound having the formula Ir(LA)n(LB)3-n, having the structure of Formula I is provided. In the structure of Formula I, each of A1 through A8 is independently carbon or nitrogen; at least one of A1 through A8 is nitrogen; ring B is bonded to ring A through a C—C bond; the iridium is bonded to ring A through an Ir—C bond; X is O, S, or Se; each of R1 through R5 are independently selected from a variety of substituents, which may be linked for form a ring; n is an integer from 1 to 3; and at least one R2 adjacent to ring C is not hydrogen. Formulations and devices, such as OLEDs, that include the first compound are also provided.
    Type: Grant
    Filed: May 15, 2023
    Date of Patent: February 25, 2025
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Jui-Yi Tsai, Alexey Borisovich Dyatkin, Walter Yeager, Chuanjun Xia
  • Patent number: 12239018
    Abstract: An organic electroluminescent material is disclosed. The organic electroluminescent material is novel dehydro-fused-ring compounds with a structure of B(A)2, which may be used as charge transporting materials, charge injection materials, and the like in organic electroluminescent devices. Such novel compounds have very deep LUMO energy level, so they are excellent electron acceptor materials and charge transfer materials. They also have the potential to be excellent hole injection materials and p-dopant materials, and have broad industrial application prospects. An electroluminescent device and a compound formulation are also disclosed.
    Type: Grant
    Filed: February 23, 2021
    Date of Patent: February 25, 2025
    Assignee: BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD.
    Inventors: Zhihao Cui, Hualong Ding, Chi Yuen Raymond Kwong, Chuanjun Xia, Juntao Hu, Xiao Chen
  • Publication number: 20250043174
    Abstract: 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: Application
    Filed: July 25, 2024
    Publication date: February 6, 2025
    Inventors: Zheng WANG, Zhen WANG, Hongbo LI, Wei CAI, Chi Yuen Raymond Kwong, Chuanjun Xia