Patents by Inventor Oun Gyu LEE

Oun Gyu LEE 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: 11605785
    Abstract: There is provided an organic electroluminescence device, including at least an anode, a hole transport layer, a light-emitting layer, an electron transport layer, and a cathode in the stated order, the organic electroluminescence device being characterized in that the hole transport layer contains an arylamine compound represented by formula (1), and the light-emitting layer contains a heterocyclic compound having a fused ring structure represented by formula (2) or a heterocyclic compound having a fused ring stricture represented by formula (3), wherein each of formulas (1), (2) and (3) are set forth in the specification.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: March 14, 2023
    Assignees: HODOGAYA CHEMICAL CO., LTD., SFC CO., LTD.
    Inventors: Yuta Hirayama, Takeshi Yamamoto, Kazuyuki Suruga, Se-Jin Lee, Oun-Gyu Lee, Bong-Ki Shin
  • Publication number: 20220077403
    Abstract: The present invention provides various organic electroluminescent elements using a material for a capping layer and a material for a luminous layer, in which the material for a capping layer uses an arylamine material that exhibit excellent stability and durability in the form of a thin film, especially a specific amine compound having a high refractive index and having a high absorbance within a wavelength range from 400 nm to 410 nm in the absorption spectrum at a concentration of 10?5 mol/L; and in which the material for a luminous layer uses a compound containing a heterocyclic compound that has a specific fused ring structure.
    Type: Application
    Filed: December 18, 2019
    Publication date: March 10, 2022
    Applicants: Hodogaya Chemical Co., Ltd., SFC CO., LTD.
    Inventors: Yuta HIRAYAMA, Takeshi YAMAMOTO, Shunji MOCHIZUKI, Shuichi HAYASHI, Se-Jin LEE, Oun-Gyu LEE, Bong-Ki SHIN
  • Patent number: 11217754
    Abstract: According to the present invention, there is provided an organic electroluminescent device which has an anode, a hole transport layer, a luminous layer, an electron transport layer, and a cathode arranged in order of description. The device is characterized in that: the hole transport layer includes a specific arylamine compound, and that the luminous layer includes a specific indenoindole derivative or a specific carbazole derivative. The organic EL device of the present invention has improved efficiency of hole transport from the hole transport layer to the luminous layer and also improved efficiency of electron transport from the electron transport layer to the luminous layer, in comparison to conventional organic EL devices.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: January 4, 2022
    Assignees: HODOGAYA CHEMICAL CO., LTD., SFC CO., LTD.
    Inventors: Shuichi Hayashi, Naoaki Kabasawa, Shunji Mochiduki, Se-Jin Lee, Oun-gyu Lee, Bong-Ki Shin
  • Publication number: 20200287141
    Abstract: [Object] It is an object of the present invention to provide an organic EL device in which various materials for an organic EL device, which is excellent in hole/electron injection/transport performance, electron blocking performance, stability in a thin film state, and durability, are combined as materials for an organic EL device that has high light emission efficiency and high durability so that properties of each of the materials can be effectively expressed, thereby achieving (1) high light emission efficiency and power efficiency, (2) a low light emission start voltage, (3) a low practical driving voltage, and particularly (4) a long lifetime.
    Type: Application
    Filed: September 21, 2018
    Publication date: September 10, 2020
    Applicants: HODOGAYA CHEMICAL CO., LTD., SFC CO., LTD.
    Inventors: Yuta HIRAYAMA, Takeshi YAMAMOTO, Kazuyuki SURUGA, Se-Jin LEE, Oun-Gyu LEE, Bong-Ki SHIN
  • Patent number: 10505119
    Abstract: The organic EL device of the present invention has an anode, a hole transport layer, a luminous layer, an electron transport layer, and a cathode in the order of description. The hole transport layer includes an arylamine compound represented by the following general formula (1): in the formula, Ar1 to Ar4 each represent a monovalent aromatic hydrocarbon group or a monovalent aromatic heterocyclic group, and the luminous layer includes an N-aromatic substituted nitrogen-containing heterocyclic compound.
    Type: Grant
    Filed: January 5, 2016
    Date of Patent: December 10, 2019
    Assignees: HODOGAYA CHEMICAL CO., LTD., SFC CO., LTD.
    Inventors: Norimasa Yokoyama, Shuichi Hayashi, Takeshi Yamamoto, Naoaki Kabasawa, Daizo Kanda, Shunji Mochiduki, Se-Jin Lee, Oun-gyu Lee, Bong-Ki Shin
  • Patent number: 10486191
    Abstract: Disclosed is an apparatus for evaluation of a deposition process in organic thin film-manufacturing processes using a chamber employing a deposition-preventing plate, by which it can be predicted whether a thin film layer formed on the deposition-preventing plate will be delaminated. Also provided is a method for evaluating a deposition process of an organic material, using the apparatus.
    Type: Grant
    Filed: August 26, 2017
    Date of Patent: November 26, 2019
    Assignees: SFC CO., LTD., SAMSUNG DISPLAY CO., LTD.
    Inventors: Sung-Wan Pyo, Oun-Gyu Lee, Young-Hwan Park, Myeong-Suk Kim, Soung Wook Kim
  • Patent number: 10424742
    Abstract: The organic EL device of the invention has, in order, an anode, a hole transport layer, a luminous layer, an electron transport layer and a cathode. The hole transport layer includes an indenoacridan derivative represented by the following general formula (1), and the luminous layer includes an N-aromatic substituted indenoindole compound and/or an N-aromatic substituted carbazole compound. In the formula, A1 is a divalent aromatic hydrocarbon group, a divalent aromatic heterocyclic group or a single bond, B is a monovalent aromatic hydrocarbon group; a monovalent aromatic heterocyclic group; or a disubstituted amino group having, as a substituent, a monovalent aromatic hydrocarbon group or a monovalent aromatic heterocyclic group; and R1 to R14 each represent a hydrogen atom or an alkyl group.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: September 24, 2019
    Assignees: HODOGAYA CHEMICAL CO., LTD., SFC CO., LTD
    Inventors: Shuichi Hayashi, Daizou Kanda, Shunji Mochiduki, Se-Jin Lee, Oun-gyu Lee, Bong-Ki Shin
  • Publication number: 20180212153
    Abstract: According to the present invention, there is provided an organic electroluminescent device which has an anode, a hole transport layer, a luminous layer, an electron transport layer, and a cathode arranged in order of description. The device is characterized in that: the hole transport layer includes a specific arylamine compound, and that the luminous layer includes a specific indenoindole derivative or a specific carbazole derivative. The organic EL device of the present invention has improved efficiency of hole transport from the hole transport layer to the luminous layer and also improved efficiency of electron transport from the electron transport layer to the luminous layer, in comparison to conventional organic EL devices.
    Type: Application
    Filed: July 27, 2015
    Publication date: July 26, 2018
    Applicants: HODOGAYA CHEMICAL CO., LTD., SFC CO., LTD.
    Inventors: Shuichi HAYASHI, Naoaki KABASAWA, Shunji MOCHIDUKI, Se-Jin LEE, Oun-gyu LEE, Bong-Ki SHIN
  • Publication number: 20180056326
    Abstract: Disclosed is an apparatus for evaluation of a deposition process in organic thin film-manufacturing processes using a chamber employing a deposition-preventing plate, by which it can be predicted whether a thin film layer formed on the deposition-preventing plate will be delaminated. Also provided is a method for evaluating a deposition process of an organic material, using the apparatus.
    Type: Application
    Filed: August 26, 2017
    Publication date: March 1, 2018
    Inventors: Sung-Wan PYO, Oun-Gyu Lee, Young-Hwan Park
  • Patent number: 9905775
    Abstract: The present invention provides an organic electroluminescent device having at least an anode, a hole transport layer, a luminous layer, an electron transport layer, and a cathode in this order, wherein the hole transport layer contains an arylamine compound having a specific structure, and the luminous layer contains an indenoindole derivative or a carbazole derivative having a specific structure. The organic EL device of the present invention is an organic EL device improved in luminous efficiency, driving voltage and durability.
    Type: Grant
    Filed: January 5, 2016
    Date of Patent: February 27, 2018
    Assignees: HODOGAYA CHEMICAL CO., LTD., SFC CO., LTD
    Inventors: Shuichi Hayashi, Naoaki Kabasawa, Shunji Mochiduki, Se-Jin Lee, Oun-gyu Lee, Bong-Ki Shin
  • Publication number: 20180026198
    Abstract: The organic EL device of the present invention has an anode, a hole transport layer, a luminous layer, an electron transport layer, and a cathode in the order of description. The hole transport layer includes an arylamine compound represented by the following general formula (1): in the formula, Ar1 to Ar4 each represent a monovalent aromatic hydrocarbon group or a monovalent aromatic heterocyclic group, and the luminous layer includes an N-aromatic substituted nitrogen-containing heterocyclic compound.
    Type: Application
    Filed: January 5, 2016
    Publication date: January 25, 2018
    Applicants: HODOGAYA CHEMICAL CO., LTD., SFC CO., LTD.
    Inventors: Norimasa YOKOYAMA, Shuichi HAYASHI, Takeshi YAMAMOTO, Naoaki KABASAWA, Daizo KANDA, Shunji MOCHIDUKI, Se-Jin LEE, Oun-gyu LEE, Bong-Ki SHIN
  • Publication number: 20170358753
    Abstract: The present invention provides an organic electroluminescent device having at least an anode, a hole transport layer, a luminous layer, an electron transport layer, and a cathode in this order, wherein the hole transport layer contains an arylamine compound having a specific structure, and the luminous layer contains an indenoindole derivative or a carbazole derivative having a specific structure. The organic EL device of the present invention is an organic EL device improved in luminous efficiency, driving voltage and durability.
    Type: Application
    Filed: January 5, 2016
    Publication date: December 14, 2017
    Applicants: HODOGAYA CHEMICAL CO., LTD., SFC CO., LTD
    Inventors: Shuichi HAYASHI, Naoaki KABASAWA, Shunji MOCHIDUKI, Se-Jin LEE, Oun-gyu LEE, Bong-Ki SHIN
  • Patent number: 9793514
    Abstract: The present invention relates to an organic light emitting diode and a manufacturing method therefor, and the organic light emitting diode comprises: a lower electrode formed on a light-transmitting substrate; an organic thin film layer which is formed on the lower electrode and includes a light-emitting layer; a light-transmitting upper electrode formed on the organic thin film layer; a functional layer which is formed on the upper electrode and enables mutual reinforcement and interference for the transmitted lights; and a reflective layer formed on the functional layer.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: October 17, 2017
    Assignee: SFC CO., LTD.
    Inventors: Oun Gyu Lee, Young Hwan Park, Jeong Hyun Kim, Jong Tae Je
  • Publication number: 20170271599
    Abstract: The organic EL device of the invention has, in order, an anode, a hole transport layer, a luminous layer, an electron transport layer and a cathode. The hole transport layer includes an indenoacridan derivative represented by the following general formula (1), and the luminous layer includes an N-aromatic substituted indenoindole compound and/or an N-aromatic substituted carbazole compound. In the formula, A1 is a divalent aromatic hydrocarbon group, a divalent aromatic heterocyclic group or a single bond, B is a monovalent aromatic hydrocarbon group; a monovalent aromatic heterocyclic group; or a disubstituted amino group having, as a substituent, a monovalent aromatic hydrocarbon group or a monovalent aromatic heterocyclic group; and R1 to R14 each represent a hydrogen atom or an alkyl group.
    Type: Application
    Filed: August 6, 2015
    Publication date: September 21, 2017
    Applicants: HODOGAYA CHEMICAL CO., LTD., SFC CO., LTD.
    Inventors: Shuichi HAYASHI, Daizou KANDA, Shunji MOCHIDUKI, Se-Jin LEE, Oun-gyu LEE, Bong-Ki SHIN
  • Patent number: 9570711
    Abstract: Disclosed are an organic light emitting diode and a method of manufacturing the same, the organic light emitting diode including: a light-transmitting substrate including a first region and a second region separated from the first region; a first lower electrode formed on the first region of the light-transmitting substrate and a second lower electrode formed on the second region thereof; a first organic thin film layer including a first emission material layer, formed on the first lower electrode of the first region, and a second organic thin film layer including a second emission material layer, formed on the second lower electrode of the second region; and a light-transmitting upper electrode formed on the first organic thin film layer and the second organic thin film layer and configured such that portions corresponding to the first region and the second region are connected to each other.
    Type: Grant
    Filed: August 21, 2014
    Date of Patent: February 14, 2017
    Assignee: SFC CO., LTD.
    Inventors: Oun-Gyu Lee, Young-hwan Park, Jong-Tae Je
  • Publication number: 20160211485
    Abstract: Disclosed are an organic light emitting diode and a method of manufacturing the same, the organic light emitting diode including: a light-transmitting substrate including a first region and a second region separated from the first region; a first lower electrode formed on the first region of the light-transmitting substrate and a second lower electrode formed on the second region thereof; a first organic thin film layer including a first emission material layer, formed on the first lower electrode of the first region, and a second organic thin film layer including a second emission material layer, formed on the second lower electrode of the second region; and a light-transmitting upper electrode formed on the first organic thin film layer and the second organic thin film layer and configured such that portions corresponding to the first region and the second region are connected to each other.
    Type: Application
    Filed: August 21, 2014
    Publication date: July 21, 2016
    Inventors: Oun-Gyu Lee, Young-hwan Park, Jong-Tae Je
  • Publication number: 20150295205
    Abstract: The present invention relates to an organic light emitting diode and a manufacturing method therefor, and the organic light emitting diode comprises: a lower electrode formed on a light-transmitting substrate; an organic thin film layer which is formed on the lower electrode and includes a light-emitting layer; a light-transmitting upper electrode formed on the organic thin film layer; a functional layer which is formed on the upper electrode and enables mutual reinforcement and interference for the transmitted lights; and a reflective layer formed on the functional layer.
    Type: Application
    Filed: October 22, 2013
    Publication date: October 15, 2015
    Inventors: Oun Gyu LEE, Young Hwan PARK, Jeong Hyun KIM, Jong Tae JE, Sung Jae MAENG