Patents Examined by Gregory Clark
  • Patent number: 10103333
    Abstract: An organic light-emitting device with improved efficiency and improved lifetime includes: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode and including an emission layer.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: October 16, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Naoyuki Ito, Seulong Kim, Younsun Kim, Dongwoo Shin, Jungsub Lee
  • Patent number: 9905780
    Abstract: An organic electroluminescent material is shown in General Formula (1), wherein one of X1, X2, and X3 is an independent nitrogen atom, and R1 to R14 are each independently selected from the group consisting of a hydrogen atom, a fluorine atom, a cyano group, an alkyl group, a cycloalkyl group, an alkoxy group, a thioalkyl group, a silyl group, and an alkenyl group.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: February 27, 2018
    Assignee: YUAN ZE UNIVERSITY
    Inventors: Pei-Ling Ting, Man-Kit Leung, Tien-Lung Chiu, Jiun-Haw Lee, Lik-Ka Yun
  • Patent number: 9899613
    Abstract: Provided is an organic light-emitting element having high light-emitting efficiency and a long element lifetime. Specifically, provided is an organic light-emitting element, including: an anode; a cathode; and an organic compound layer placed between the anode and the cathode, in which: the organic compound layer includes an emission layer; the emission layer includes at least a host and a guest; the guest is an iridium complex of a specific structure; the host is a heterocycle-containing compound; and a content of the host is 50 wt % or more with reference to a total amount of constituent materials for the emission layer.
    Type: Grant
    Filed: January 20, 2014
    Date of Patent: February 20, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takayuki Horiuchi, Tetsuya Kosuge, Hirokazu Miyashita, Yosuke Nishide, Shigemoto Abe, Naoki Yamada, Jun Kamatani, Akihito Saitoh, Kengo Kishino
  • Patent number: 9882142
    Abstract: The present invention relates to certain fluorenes, to the use of the compounds in an electronic device, and to an electronic device comprising at least one of these compounds. The present invention furthermore relates to a process for the preparation of the compounds and to a formulation and composition comprising one or more of the compounds.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: January 30, 2018
    Assignee: Merck Patent GmbH
    Inventors: Teresa Mujica-Fernaud, Elvira Montenegro, Amir Hossain Parham, Arne Buesing, Frank Voges
  • Patent number: 9882143
    Abstract: An amine-based compound and an organic light-emitting diode including the amine-based compound.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: January 30, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Youngkook Kim, Seokhwan Hwang, Hyejin Jung, Jino Lim, Sanghyun Han, Eunjae Jeong, Sooyon Kim, Junha Park, Eunyoung Lee, Jonghyuk Lee
  • Patent number: 9876181
    Abstract: The present invention relates to electron-deficient heteroaromatic compounds which are substituted by dibenzofuran or dibenzothiophene derivatives and by carbazoles or amines, in particular for use as triplet matrix materials in organic electroluminescent devices. The invention furthermore relates to a process for the preparation of the compounds according to the invention and to electronic devices comprising these compounds.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: January 23, 2018
    Assignee: Merck Patent GmbH
    Inventors: Amir Hossain Parham, Thomas Eberle, Anja Jatsch, Tobias Grossmann, Jonas Valentin Kroeber, Rémi Manouk Anémain
  • Patent number: 9876179
    Abstract: An organic light-emitting device including: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode, the organic layer including an emission layer, wherein the organic layer further includes: i) a hole transport region between the first electrode and the emission layer, the hole transport region including at least one selected from a hole transport layer, a hole injection layer, and a buffer layer, and ii) an electron transport region between the emission layer and the second electrode, the electron transport region including an electron transport layer and at least one selected from a hole blocking layer and an electron injection layer; and wherein the electron transport region includes a compound represented by Formula 1 or a compound represented by Formula 2:
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: January 23, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Eunyoung Lee, Youngkook Kim, Junha Park, Munki Sim, Eunjae Jeong, Seokhwan Hwang
  • Patent number: 9873831
    Abstract: A co-polymer comprising a repeat unit of formula (I): wherein Ar1, Ar2 and Ar3 each independently represent an aryl or heteroaryl group that may be unsubstituted or substituted with one or more substituents, the copolymer further comprising a conjugation-breaking repeat unit that does not provide any conjugation path between repeat units adjacent to the conjugation-breaking repeat unit. The copolymer may be used as a host material of a phosphorescent material in a light-emitting layer of an organic light-emitting device.
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: January 23, 2018
    Assignees: Cambridge Display Technology Limited, Sumitomo Chemical Company Limited
    Inventors: Annette Steudel, Kiran Kamtekar
  • Patent number: 9871206
    Abstract: A compound is represented by a formula (1) below. In the formula (1), X1 to X8 each independently represent a carbon atom to be bonded to a group represented by the following formula (20), CRX or a nitrogen atom. At least one of X1 to X8 is a carbon atom to be bonded to the group represented by the following formula (2). RX is each independently a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, or the like.
    Type: Grant
    Filed: September 12, 2013
    Date of Patent: January 16, 2018
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Sayaka Mizutani, Takayasu Sado
  • Patent number: 9871204
    Abstract: A material for an organic electroluminescence device is represented by the following Formula 1, where X1 to X7, E, L, Ar1 and Ar2 are as defined in the specification.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: January 16, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventor: Junta Fuchiwaki
  • Patent number: 9865822
    Abstract: A blue phosphorescence compound and an organic light emitting diode using the same are disclosed. The blue phosphorescence compound is represented by Chemical Formula 1 below: wherein ‘A’ and ‘B’ are symmetrically or asymmetrically substituted at positions of Nos. 2 and 7 or Nos. 3 and 6 of dibenzofuran core and are independently formed of an aromatic cyclic compound or a heterocyclic compound.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: January 9, 2018
    Assignee: LG Display Co., Ltd.
    Inventors: Inbum Song, Sukyoung Bae
  • Patent number: 9853222
    Abstract: A condensed-cyclic compound is represented by Formula 1, and an organic light-emitting diode includes the condensed-cyclic compound. The organic light-emitting diode includes a first electrode, a second electrode facing the first electrode, and an organic layer. The organic layer includes an emission layer and the condensed-cyclic compound. The condensed-cyclic compound can be included in the emission layer as a host, and the emission layer may further include a dopant.
    Type: Grant
    Filed: August 22, 2013
    Date of Patent: December 26, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Se-Hun Kim, Mi-Kyung Kim, Kwan-Hee Lee, Chang-Woong Chu
  • Patent number: 9847492
    Abstract: An organic compound is represented by Formula 1. where X1, X2, L, A1, A2, R1, R2, R3, R4, and Het are as defined in the specification.
    Type: Grant
    Filed: January 13, 2015
    Date of Patent: December 19, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventor: Ji Yun Jung
  • Patent number: 9847501
    Abstract: An aromatic heterocyclic derivative is represented by a formula (1) below. In the formula (1), X1 to X3 each are a nitrogen atom or CR1, with a proviso that at least one of X1 to X3 is a nitrogen atom. A is represented by a formula (2) and B is represented by a formula (4) below.
    Type: Grant
    Filed: November 21, 2012
    Date of Patent: December 19, 2017
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Sayaka Mizutani, Takayasu Sado
  • Patent number: 9842998
    Abstract: In a novel compound, and a light emitting diode and an electronic apparatus including the same, the novel compound is represented by the following Chemical Formula 1.
    Type: Grant
    Filed: September 18, 2013
    Date of Patent: December 12, 2017
    Assignee: LMS CO., LTD.
    Inventors: Jeong Og Choi, Joon Ho Jung, Oh Kwan Kwon
  • Patent number: 9843005
    Abstract: An amine derivative represented by compound (1) of following Formula 1:
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: December 12, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventor: Yasuo Miyata
  • Patent number: 9837617
    Abstract: The present application relates to a compound of a formula (I) which contains a spirobifluorene basic structure condensed onto a benzofuran unit. The application furthermore relates to a process for the preparation of the compound of the formula (I), and to the use of the compound of the formula (I) in an electronic device.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: December 5, 2017
    Assignee: Merck Patent GmbH
    Inventors: Jochen Pfister, Frank Voges, Elvira Montenegro, Teresa Mujica-Fernaud
  • Patent number: 9837618
    Abstract: The present invention relates to a novel indole-based compound having excellent hole injection and transport capabilities, light-emitting capabilities, and the like, and an organic electroluminescence device which includes the indole-based compound in one or more organic material layers thereof so as to improve characteristics such as light-emitting efficiency, driving voltage, and lifespan.
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: December 5, 2017
    Assignee: DOOSAN CORPORATION
    Inventors: Ho Cheol Park, Hyung Chan Bae, Min Sik Eum, Young Mi Beak, Chang Jun Lee, Jin Yong Shin, Tae Hyung Kim
  • Patent number: 9831444
    Abstract: The present invention discloses a phenanthroline-based compound and an organic EL device employing the compound as phosphorescent light emitting host material of a light emitting layer and/or electron transporting layer material and/or hole blocking layer material and/or a thermally activated delayed fluorescence (TADF) material of a light emitting layer which can display good performance.
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: November 28, 2017
    Inventors: Feng-Wen Yen, Li-Chieh Chuang, Chin-Min Teng
  • Patent number: 9831439
    Abstract: According to an embodiment of the present invention, an organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an emission layer between the first electrode and the second electrode. The organic light-emitting device includes a hole transport zone between the first electrode and the emission layer and includes an auxiliary layer, wherein the auxiliary layer includes at least one auxiliary material represented by Formula 1 below, and wherein the emission layer includes at least one light-emitting material represented by Formula 2 below.
    Type: Grant
    Filed: May 27, 2014
    Date of Patent: November 28, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Myeong-Suk Kim, Ji-Hyun Seo, Sung-Wook Kim, Jae-Hong Kim, Jin-Soo Hwang