Patents Examined by Jay Yang
  • Patent number: 10897014
    Abstract: A heterocyclic compound and an organic light-emitting device including the same are provided, the heterocyclic compound being represented by <Formula 1>
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: January 19, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Munki Sim, Junha Park, Hyoyoung Lee, Eunjae Jeong, Youngkook Kim, Seokhwan Hwang
  • Patent number: 10897011
    Abstract: An organic light-emitting device including a first compound represented by Formula 1 and a second compound represented by one of Formulae 2A and 2B.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: January 19, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dongwoo Shin, Seulong Kim, Younsun Kim, Jungsub Lee, Naoyuki Ito, Jino Lim
  • Patent number: 10892419
    Abstract: Discussed is a space-through charge transfer compound including a naphthalene core; an electron donor moiety selected from carbazole and phenylcarbazole; and an electron acceptor moiety selected from pyridine, diazine, triazole, and phenyl benzodiazole, wherein the electron donor moiety and the electron acceptor moiety are combined to first and eighth positions of the naphthalene core with a benzene linker, respectively.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: January 12, 2021
    Assignee: LG Display Co., Ltd.
    Inventors: Hyo-Jin Noh, Kyung-Jin Yoon, Dae-Wi Yoon, In-Ae Shin, Jun-Yun Kim
  • Patent number: 10879472
    Abstract: An embodiment of the present invention provides an organic compound represented by following Formula: wherein each of X1 to X5 is independently selected from a carbon atom (C) or a nitrogen atom (N), and at least two or three of X1 to X5 are N, wherein each of R1 and R2 is independently selected from a substituted or non-substituted aryl group or a substituted or non-substituted heteroaryl group, and “a” is an integer between zero (0) to 3, and wherein each of L1 and L2 is independently selected from a substituted or non-substituted arylene group or a substituted or non-substituted heteroarylene group, and “b” is zero (0) or 1. The present invention also provides an organic light emitting diode and an organic light emitting display device including the organic compound.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: December 29, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Seon-Keun Yoo, Sung-Hoon Joo, Seung-Hee Yoon, Ji-Cheol Shin
  • Patent number: 10873036
    Abstract: This invention discloses novel ligands for metal complexes. These ligands contain a phenyl with an iso-quinoline (or other type of heterocycles) which are bridged together with a carbon substituted by two aliphatic side chains. The resulting light-emitting metal complexes exhibited high external quantum efficiency and better line shape.
    Type: Grant
    Filed: July 6, 2016
    Date of Patent: December 22, 2020
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Pierre-Luc T. Boudreault, Chuanjun Xia
  • Patent number: 10873038
    Abstract: Organometallic compounds comprising an imidazole carbene ligand having a N-containing ring fused to the imidazole ring are provided. In particular, the N-containing ring fused to the imidazole ring may contain one nitrogen atom or more than one nitrogen atom. These compounds may demonstrate high photoluminescent (PL) efficiency, Gaussian emission spectra, and/or short excited state lifetimes. These materials may be especially useful as blue phosphorescent emitters.
    Type: Grant
    Filed: April 10, 2018
    Date of Patent: December 22, 2020
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Yonggang Wu, Chuanjun Xia, James Fiordeliso, Suman Layek, Bert Alleyne, Alexey Borisovich Dyatkin, Nasrin Ansari, Scott Beers, Edward Barron, Jason Brooks
  • Patent number: 10854823
    Abstract: Provided are a heterocyclic compound and an organic light-emitting device including the same.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: December 1, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyoyoung Lee, Junha Park, Munki Sim, Eunjae Jeong, Youngkook Kim, Seokhwan Hwang
  • Patent number: 10833277
    Abstract: The present specification provides a heterocyclic compound and an organic light emitting device comprising the same.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: November 10, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Jungoh Huh, Dong Hoon Lee, Boonjae Jang, Minyoung Kang, Dong Uk Heo, Miyeon Han, Min Woo Jung
  • Patent number: 10818848
    Abstract: The present invention provides an organic light emitting device comprising at least one light emitting layer which comprises a first host compound and a second host compound, and the organic light emitting device has improved driving voltage, efficiency and lifetime.
    Type: Grant
    Filed: April 4, 2018
    Date of Patent: October 27, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Seong Mi Cho, Min Woo Jung, Sang Young Jeon, Minwoo Choi, Hyeon Soo Jeon
  • Patent number: 10790450
    Abstract: Disclosed herein is an organic light-emitting diode, comprising: an organic light-emitting diode, comprising: a first electrode; a second electrode facing the first electrode; a light-emitting layer intercalated between the first electrode and the second electrode, wherein the light-emitting layer comprises at least one of the amine compounds represented by Chemical Formula A or B, and at least one of the anthracene compounds represented by Chemical Formula C.
    Type: Grant
    Filed: July 5, 2016
    Date of Patent: September 29, 2020
    Assignee: SFC CO., LTD.
    Inventors: Sung-Wan Pyo, So Young Shim, Se Jin Yu
  • Patent number: 10790452
    Abstract: An antiaromatic compound and an organic light-emitting device including the same.
    Type: Grant
    Filed: November 4, 2014
    Date of Patent: September 29, 2020
    Assignees: Samsung Display Co., Ltd., Industry-Academic Cooperation Foundation Gyeongsang National University
    Inventors: Mi-Kyung Kim, Yun-Hi Kim, Soon-Ki Kwon, Chang-Woong Chu
  • Patent number: 10756277
    Abstract: The present disclosure relates to a novel organic compound and an organic electroluminescent device comprising the same, and the organic compound of the present disclosure may be used for an organic material layer of the organic electroluminescent device, thereby improving the light emitting efficiency, driving voltage, lifetime, and the like of the organic electroluminescent device.
    Type: Grant
    Filed: April 7, 2015
    Date of Patent: August 25, 2020
    Assignee: DOOSAN SOLUS CO., LTD.
    Inventors: Tae Jin Choi, Ho-Cheol Park, Youngmi Beak, Eunjin Kim
  • Patent number: 10756286
    Abstract: A light-emitting element with high luminous efficiency is provided. The light-emitting element contains a first organic compound and a second organic compound. The first and second organic compounds form an exciplex. The first organic compound emits no fluorescence but phosphorescence at a temperature ranging from low temperature to normal temperature. The luminescence quantum yield of the first organic compound is higher than or equal to 0% and lower than or equal to 40% at room temperature. Light emitted from the light-emitting element includes light emitted from an exciplex formed by the first organic compound and the second organic compound.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: August 25, 2020
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Takahiro Ishisone, Satoshi Seo
  • Patent number: 10749128
    Abstract: The present invention relates to a depositable ionic organic functional material having a structure selected from the formulas (21) to (26). The depositable ionic organic functional material can be used in high-efficiency blue to red OLEDs. The present invention also relates to an organic electroluminescent device using the depositable ionic organic functional material as a dopant in the organic light-emitting layer thereof.
    Type: Grant
    Filed: June 15, 2016
    Date of Patent: August 18, 2020
    Assignees: KUNSHAN GO-VISIONOX OPTO-ELECTRONICS CO., LTD., TSINGHUA UNIVERSITY
    Inventors: Lian Duan, Dongxin Ma, Song Liu, Jing Xie, Fei Zhao
  • Patent number: 10741771
    Abstract: A compound represented by Formula 1 is disclosed. An organic electric element includes a first electrode, a second electrode, and an organic material layer between the first electrode and the second electrode. The organic material layer includes the compound represented by Formula 1. When the organic electric element includes the compound in the organic material layer, luminescence efficiency, stability, and life span can be improved.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: August 11, 2020
    Assignee: DUK SAN NEOLUX CO., LTD.
    Inventors: Yu Ri Kim, Sun-Hee Lee, Won Sam Kim, Hye Ryeong Kim, Ho Young Jung, Jung Hwan Park, Sun Pil Hwang
  • Patent number: 10734589
    Abstract: A novel organic compound is provided. That is, a novel organic compound that is effective in improving the element characteristics and reliability is provided. The organic compound has a benzofuroquinoxaline skeleton or a benzothienoquinoxaline skeleton. The organic compound is represented by General Formula (G1). In the formula, Q represents O or S, and each of R1 to R8 independently represents any of hydrogen, a halogeno group, a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted aryl group having 6 to 12 carbon atoms, and a substituted or unsubstituted heteroaryl group having 3 to 12 carbon atoms. At least one of R1 to R8 includes a substituted or unsubstituted condensed aromatic or heteroaromatic ring having 3 to 24 carbon atoms.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: August 4, 2020
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hiroki Suzuki, Tomoya Yamaguchi, Hideko Yoshizumi, Satoshi Seo, Tatsuyoshi Takahashi, Hiromitsu Kido, Satomi Watabe
  • Patent number: 10720585
    Abstract: A compound is represented by Formula 1 and an organic light-emitting device including the same: wherein Formula 1 is the same as described above.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: July 21, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Junha Park, Eunyoung Lee, Youngkook Kim, Munki Sim, Hyoyoung Lee, Eunjae Jeong, Seokhwan Hwang
  • Patent number: 10700288
    Abstract: A light-emitting element that contains a fluorescent compound, which has high efficiency is provided. A light-emitting element in which the proportion of delayed fluorescence to the total light emitted from the light-emitting element is higher than that in a conventional light-emitting element is provided. Emission efficiency of the light-emitting element containing a fluorescent compound can be improved by increasing the probability of TTA caused by an organic compound in an EL layer, converting energy of triplet excitons, which does not contribute to light emission, into energy of singlet excitons, and making the fluorescent compound emit light by energy transfer of the singlet excitons.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: June 30, 2020
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Kunihiko Suzuki, Satoshi Seo, Harue Osaka, Tsunenori Suzuki, Naoaki Hashimoto, Kyoko Takeda
  • Patent number: 10700294
    Abstract: The invention provides a blue organic electroluminescent device, composed of a substrate, an anode layer, an anode modification layer, a hole transporting-electron blocking layer, a hole-dominated light-emitting layer, an electron-dominated light-emitting layer, a hole blocking-electron transporting layer, a cathode modification layer, and a cathode layer arranged in turn, wherein the electron-dominated light-emitting layer is composed of an organic sensitive material, a blue organic light-emitting material, and an electron-type organic host material.
    Type: Grant
    Filed: November 20, 2014
    Date of Patent: June 30, 2020
    Assignee: Changchun Institute of Applied Chemistry, Chinese Academy of Sciences
    Inventors: Liang Zhou, Hongjie Zhang, Yunlong Jiang
  • Patent number: 10700298
    Abstract: The present invention relates to an OLED display panel comprising a first electrode, and a first hole transporting layer, a second hole transporting layer, and an electron transporting layer stacked on the first electrode, and a second electrode formed; at least two light emitting units are provided on the second hole transporting layer; the electron transporting layer covers the light emitting units; the material of the electron transporting layer fills the gap(s) between adjacent light emitting units; the first hole transporting layer comprises a hole transporting material which has a hole mobility of 9×10?5-5×10?4 cm2/V·S, and a solubility of 10 g/L or more in a cleaning solvent at 25° C. The present invention utilizes a hole transporting material having a specific hole mobility as a common hole transporting layer, avoiding crosstalks between different pixels.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: June 30, 2020
    Assignees: SHANGHAI TIANMA AM-OLED CO., LTD., TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Xiangcheng Wang, Chen Liu, Wei He, Jinghua Niu, Yuji Hamada, Ying Liu