Patents Examined by Dylan C Kershner
  • Patent number: 10985325
    Abstract: An aromatic amine derivative represented by formula (1): wherein HAr1, Ar2, L1, L2, and L3 are as defined in the specification, is useful as a material for constituting an organic EL device and realizes an organic EL device having a high efficiency and a long lifetime even when driving at a low voltage.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: April 20, 2021
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Tomoki Kato, Takayasu Sado, Takahiro Fujiyama
  • Patent number: 10985322
    Abstract: Light-emitting composition and devices including the same, the composition including a fluorescent light-emitting material and a polymer having a conjugating repeat unit and a non-conjugating repeat unit in a backbone of the polymer, and in which the conjugating repeat unit provides at least one conjugation path between repeat units linked to it; the non-conjugating repeat unit reduces conjugation of the polymer as compared to a polymer in which the non-conjugating repeat unit is absent; and a triplet excited state energy level of the light-emitting material is higher than a triplet excited state energy level of the non-conjugating repeat unit.
    Type: Grant
    Filed: October 13, 2011
    Date of Patent: April 20, 2021
    Assignees: Cambridge Display Technology, Ltd., Sumitomo Chemical Company Limited
    Inventors: Natasha M. J. Conway, Jonathan Pillow, Thomas Pounds, Fredrik Jakobsson, Christian Nielsen
  • Patent number: 10981876
    Abstract: The present specification provides a spiro structured compound represented by the following Chemical Formula 1 and an organic light emitting device including the same: wherein L1, n, Ar1, R1 to R7, p, q, r, s, and t are defined herein.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: April 20, 2021
    Inventors: Yongbum Cha, Jin Joo Kim, Sang Duk Suh
  • Patent number: 10957870
    Abstract: A region of a device is provided that includes a first material and a second material. The first and second materials may be co-dopants of an emissive material or region. The first material may have an energy gap of not more than about 100 meV between the first excited singlet state and the first excited triplet state. Excitons that transition to the T1 state can be activated to the S1 state due to the relatively small energy gap. This thermal activation process is fast enough that non-radiative decay from the T1 state to the S0 state is minimal or negligible, thus allowing for sensitization up to and including 100%. The second material may be a phosphorescent-capable material, and may act as a sensitizer to the first material.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: March 23, 2021
    Inventors: Woo-Young So, Jui-Yi Tsai, Chuanjun Xia
  • Patent number: 10957861
    Abstract: Compounds of Formula I containing indolocarbazole and aromatic and/or heteroaromatic building blocks are useful for application in organic electroluminescent devices.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: March 23, 2021
    Inventors: Alexey Borisovich Dyatkin, Zhiqiang Ji, Lichang Zeng, Chuanjun Xia
  • Patent number: 10944061
    Abstract: An organic electroluminescence device having high efficiency, low in driving voltage and excellent in durability and a compound useful for the organic electroluminescence device are provided. An organic electroluminescence device comprising, a substrate having thereon: a pair of electrodes of an anode and a cathode; and at least one organic layer comprising a light-emitting layer between the pair of electrodes, and the light-emitting layer contains at least one kind of a phosphorescent material, and at least either one layer of the at least one organic layer contains a specific compound having a dibenzothiophene or dibenzofuran structure, and the compound.
    Type: Grant
    Filed: September 5, 2011
    Date of Patent: March 9, 2021
    Inventors: Kousuke Watanabe, Wataru Sotoyama
  • Patent number: 10879473
    Abstract: The present invention relates to organic electronic devices. The devices can include a first electrode, a second electrode, and a substantially organic layer. The substantially organic layer may include a lithium-containing compound, and may be arranged between the first and the second electrode. Also provided herein are organic light emitting diodes, organic solar cells, and organic field effect transistors that include the lithium-containing compound.
    Type: Grant
    Filed: June 6, 2014
    Date of Patent: December 29, 2020
    Assignee: Novaled GmbH
    Inventors: Francois Cardinali, Omrane Fadhel, Mike Zöllner, Carsten Rothe, Mauro Furno
  • Patent number: 10879470
    Abstract: Provided are condensed cyclic compounds represented by Formula 1: and an organic light-emitting device having the compounds which has decreased driving voltage, higher efficiency, and increased overall lifespan.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: December 29, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seulong Kim, Illsoo Park, Hyosup Shin, Sunghun Lee
  • Patent number: 10873027
    Abstract: A process for the manufacture of a multilayer structure suitable for forming part of an organic electronic device having a cathode and an anode wherein liquid compositions with solvent systems comprising organic compounds with ionizable groups are deposited out of solution. Organic electronic devices can be made with use of the process including transistors, diodes, and photovoltaic devices, including organic light emitting diodes (OLEDs).
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: December 22, 2020
    Assignee: Nissan Chemical Industries, Ltd.
    Inventor: Roland Martin
  • Patent number: 10868261
    Abstract: This invention discloses iridium complexes containing phenylpyridine ligand wherein there is an aryl or heterocyclic ring fused into phenyl ring. This invention also discloses organic light emitting devices comprising an anode, a cathode, and an organic layer disposed between the anode and the cathode, the organic layer comprising an iridium complex, and formulations comprising iridium complexes. The iridium complexes showed desired device performance.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: December 15, 2020
    Inventors: Bin Ma, Chuanjun Xia
  • Patent number: 10862060
    Abstract: An organic light emitting device includes a substrate, a first electrode on the substrate, a second electrode, a first stack on the first electrode and including a hole injection layer, a first hole transport layer, a first mixed layer, a second hole transport layer, a first light emitting layer, and a first electron transport layer sequentially laminated, a second stack between the first stack and the second electrode and including a third hole transport layer, a fourth hole transport layer, a second light emitting layer, and a second electron transport layer sequentially laminated, and a charge generation layer between the first stack and the second stack to control charge balance between the first and second stacks. The first mixed layer includes materials used to form the first and second hole transport layers.
    Type: Grant
    Filed: May 22, 2013
    Date of Patent: December 8, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Jeong-Haeng Heo, Jae-Man Lee, Jeong-Kyun Shin, Gwi-Jeong Cho, So-Yeon Ahn
  • Patent number: 10862044
    Abstract: The present disclosure relates to an organic compound, a light emitting diode and an organic light emitting diode display device using the same. The organic compound is represented by a following chemical formula 1. This organic compound has the advantages in the thermal stability, the emission property, the color purity, the hole transport property and the hole movement property, and thus the lifetime, the emission efficiency and the emission property of the LED using the same are improved.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: December 8, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Ki-Dong Koo, Jung-Keun Kim, Do-Han Kim, Jeong-Dae Seo, Seon-Keun Yoo, Seung-Hee Yoon, Ji-Cheol Shin
  • Patent number: 10840461
    Abstract: Provided is an organic electroluminescence device material, which, in its production, is free from formation of impurities that worsen the performance of organic EL devices, which, in forming an upper layer by coating, does not cause dissolution mixing or swelling mixing, which forms a film of good quality and which contributes toward improving the performance (high durability, and low driving voltage) of organic EL devices.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: November 17, 2020
    Assignee: UDC Ireland Limited
    Inventors: Yasunori Yonekuta, Koji Takaku, Naoyuki Hayashi
  • Patent number: 10825992
    Abstract: Novel spirobifluorene compounds for light emitting devices where the spirobifluorene ring system comprises at least one acridine-type substituent.
    Type: Grant
    Filed: September 24, 2012
    Date of Patent: November 3, 2020
    Inventors: Dominique Bascour, Jonathan Maunoury, Enrico Orselli
  • Patent number: 10825991
    Abstract: A composition is provided containing a phosphorescent compound and a polymer compound having a constitutional unit represented by the formula (Y): ArY1??(Y) wherein ArY1 represents an arylene group, a divalent heterocyclic group or the like; and at least one constitutional unit selected from the constitutional units represented by the formulas (Ia) to (Id): wherein m represents an integer of 0 to 4, n represents an integer of 0 to 3, RT1 represents an alkyl group, an alkoxy group, an aryl group, a monovalent heterocyclic group or the like, Rx represents a hydrogen atom, an alkyl group, an alkoxy group, an aryl group, a monovalent heterocyclic group or the like, Ar represents an aromatic hydrocarbon group or a heterocyclic group, nA and nB represent an integer of 0 to 3, and LA and LB represent an alkylene group, a cycloalkylene group, an arylene group or a divalent heterocyclic group.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: November 3, 2020
    Inventors: Shin-Ya Tanaka, Ryuji Matsumoto
  • Patent number: 10804475
    Abstract: A compound having a ligand LA of Formula I, is described. In the structure of Formula I, A is five-membered or six-membered carbocyclic or heterocyclic ring; B is a five-membered carbocyclic or heterocyclic ring; each of Z0 to Z6 is selected from nitrogen and carbon; each R1 to R4 is independently selected from a variety of substituents; any two adjacent substituents are optionally joined or fused into a ring; ligand LA is coordinated to Pt; and the ligand LA is optionally linked with one or more other ligands. Formulations and devices, such as OLEDs, that include the first compound are also provided.
    Type: Grant
    Filed: February 1, 2017
    Date of Patent: October 13, 2020
    Inventors: Lichang Zeng, Chuanjun Xia, Chun Lin
  • Patent number: 10790453
    Abstract: The present specification relates to an organic electronic device in which a novel compound that may improve a life-span, efficiency, a driving voltage drop, and stability of the organic electronic device is contained in an organic material layer.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: September 29, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Tae Yoon Park, Minseung Chun, Dongheon Kim, Jiyeon Ahn, Hyoung Seok Kim
  • Patent number: 10686146
    Abstract: Provided a paracyclophane-based iridium complexes and the phosphorescent organic EL device employing the paracyclophane-based iridium complexes as light emitting dopant of emitting layer can display good performance like as lower driving voltage, power consumption, increasing efficiency and life time. Additional, the present invention provide the suitable emitting host (H1 to H8) to collocate with the energy level of paracyclophane-based iridium complexes for the present invention.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: June 16, 2020
    Inventors: Feng-Wen Yen, Cheng-Hao Cheng
  • Patent number: 10541369
    Abstract: To provide an organic compound of excellent characteristics that exhibits excellent electron-injecting/transporting performance with hole blocking ability, and has high stability in the thin-film state, as material for an organic electroluminescent device having high efficiency and high durability, and to provide the organic electroluminescent device having high efficiency and high durability using the compound. An organic electroluminescent device includes a pair of electrodes, and one or more organic layers sandwiched between the pair of electrodes, wherein the compound of general formula (1) in which a substituted bipyridyl group and a pyridoindole ring structure are bonded via a phenylene group, is used as a constituent material of at least one organic layer.
    Type: Grant
    Filed: January 16, 2012
    Date of Patent: January 21, 2020
    Assignee: Hodogaya Chemical Co., Ltd.
    Inventors: Norimasa Yokoyama, Daizou Kanda, Shuichi Hayashi, Eiji Takahashi
  • Patent number: 10510968
    Abstract: Novel iridium complexes containing phenylpyridine and pyridyl aza-benzo fused ligands are described. These complexes are useful as light emitters when incorporated into OLEDs.
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: December 17, 2019
    Inventors: Scott Beers, Chuanjun Xia, Harvey Wendt, Suman Layek