Patents by Inventor Seok Hwan Hwang

Seok Hwan Hwang 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).

  • Amine-based compound and organic light-emitting device including the same
    Patent number: 10290820
    Abstract: An amine-based compound is represented by Formula 1. Where, in Formula 1, at least one of R1, R3, R8, and R10 is a group represented by Formula 2. Where, in Formula 2, a1 is selected from 0, 1, 2 and 3. The remaining substituents of Formulae 1 and 2 are as described herein. An organic light-emitting device (OLED) includes the amine-based compound represented by Formula 1.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: May 14, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Mi-Eun Jun, Sang-Hyun Han, Young-Kook Kim, Seok-Hwan Hwang, Sam-Il Kho
  • Compound and organic light-emitting device including the same
    Patent number: 10256416
    Abstract: A compound is represented by Formula 1, 2, or 3, and an organic light-emitting device includes the compound. The organic light-emitting device includes a first electrode, a second electrode, and an organic layer. The organic layer includes the compound represented by Formula 1, 2 or 3. A flat display apparatus includes the organic light-emitting device.
    Type: Grant
    Filed: November 5, 2013
    Date of Patent: April 9, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Eun-Young Lee, Seok-Hwan Hwang, Young-Kook Kim, Hye-Jin Jung, Jun-Ha Park, Jong-Woo Kim, Jin-O Lim, Sang-Hyun Han, Eun-Jae Jeong, Soo-Yon Kim, Jong-Hyuk Lee
  • Anthracene-based compound and organic light-emitting device including the same
    Patent number: 10256412
    Abstract: An anthracene-based compound and an organic light-emitting device including the anthracene-based compound, the anthracene-based compound being represented by Formula 1, below:
    Type: Grant
    Filed: April 14, 2014
    Date of Patent: April 9, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Young-Kook Kim, Seok-Hwan Hwang, Hye-Jin Jung, Jun-Ha Park, Jong-Woo Kim, Eun-Young Lee, Jin-O Lim, Sang-Hyun Han, Eun-Jae Jeong, Kwang-Hyun Kim, Soo-Yon Kim
  • Phenylcarbazole-based compounds and fluorene-based compounds and organic light emitting device and flat panel display device comprising the same
    Patent number: 10211406
    Abstract: Provided are an organic light emitting device including: a substrate; a first electrode; a second electrode; and an organic layer interposed between the first electrode and the second electrode and including an emission layer, wherein one of the first electrode and the second electrode is a reflective electrode and the other is a semitransparent or transparent electrode, and wherein the organic layer includes a layer having at least one of the compounds having at least one carbazole group, and a flat panel display device including the organic light emitting device. The organic light emitting device has low driving voltage, excellent current density, high brightness, excellent color purity, high efficiency, and long lifetime.
    Type: Grant
    Filed: January 14, 2018
    Date of Patent: February 19, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seok-Hwan Hwang, Young-Kook Kim, Yoon-Hyun Kwak, Jong-Hyuk Lee, Kwan-Hee Lee, Min-Seung Chun
  • Amine-based compound and organic light-emitting device including the same
    Patent number: 10193073
    Abstract: Provided are an amine-based compound and an organic light-emitting device (OLED) including the same.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: January 29, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Soo-Yon Kim, Sam-Il Kho, Young-Kook Kim, Jong-Woo Kim, Seok-Hwan Hwang
  • Pyrene-based compound and organic light-emitting diode comprising the same
    Patent number: 10193072
    Abstract: A pyrene-based compound, and an organic light-emitting diode including the pyrene-based compound are provided.
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: January 29, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Eun-Jae Jeong, Seok-Hwan Hwang, Young-Kook Kim, Hye-Jin Jung, Jun-Ha Park, Eun-Young Lee, Jin-O Lim, Sang-Hyun Han, Soo-Yon Kim, Jong-Hyuk Lee
  • Amine-based compound and organic light-emitting device including the same
    Patent number: 10193074
    Abstract: A compound and an organic light-emitting device including the same, the compound being represented by Formula 1 below:
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: January 29, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seok-Hwan Hwang, Hye-Jin Jung, Soo-Yon Kim, Young-Kook Kim, Sang-Hyun Han
  • CONDENSED CYCLIC COMPOUNDS AND ORGANIC LIGHT-EMITTING DEVICES INCLUDING THE SAME
    Publication number: 20190013483
    Abstract: A condensed cyclic compound and an organic light-emitting device including the same, the condensed cyclic compound being represented by Formula 1 below:
    Type: Application
    Filed: August 31, 2018
    Publication date: January 10, 2019
    Inventors: Eun-Jae JEONG, Young-Kook KIM, Jun-Ha PARK, Eun-Young LEE, Seok-Hwan HWANG
  • Styrl-based compound and organic light emitting diode comprising the same
    Patent number: 10147882
    Abstract: A styryl-based compound represented by Formula 1 below is disclosed. An organic light-emitting diode including the styryl-based compound is also disclosed.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: December 4, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang-Hyun Han, Seok-Hwan Hwang, Young-Kook Kim, Hye-Jin Jung, Jin-O Lim, Soo-Yon Kim, Eun-Jae Jeong, Jun-Ha Park, Eun-Young Lee, Jong-Hyuk Lee
  • Condensed cyclic compounds and organic light-emitting devices including the same
    Patent number: 10069083
    Abstract: A condensed cyclic compound and an organic light-emitting device including the same, the condensed cyclic compound being represented by Formula 1 below:
    Type: Grant
    Filed: October 6, 2014
    Date of Patent: September 4, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Eun-Jae Jeong, Young-Kook Kim, Jun-Ha Park, Eun-Young Lee, Seok-Hwan Hwang
  • Organic light-emitting device
    Patent number: 9997713
    Abstract: An organic light-emitting device including a compound represented by Formula 1 below: wherein description of Formula 1 above is specified in the detailed description.
    Type: Grant
    Filed: January 9, 2014
    Date of Patent: June 12, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jun-Ha Park, Seok-Hwan Hwang, Young-Kook Kim, Hye-Jin Jung, Eun-Young Lee, Jin-O Lim, Sang-Hyun Han, Eun-Jae Jeong, Soo-Yon Kim, Jong-Hyuk Lee
  • PHENYLCARBAZOLE-BASED COMPOUNDS AND FLUORENE-BASED COMPOUNDS AND ORGANIC LIGHT EMITTING DEVICE AND FLAT PANEL DISPLAY DEVICE COMPRISING THE SAME
    Publication number: 20180159047
    Abstract: Provided are an organic light emitting device including: a substrate; a first electrode; a second electrode; and an organic layer interposed between the first electrode and the second electrode and including an emission layer, wherein one of the first electrode and the second electrode is a reflective electrode and the other is a semitransparent or transparent electrode, and wherein the organic layer includes a layer having at least one of the compounds having at least one carbazole group, and a flat panel display device including the organic light emitting device. The organic light emitting device has low driving voltage, excellent current density, high brightness, excellent color purity, high efficiency, and long lifetime.
    Type: Application
    Filed: January 14, 2018
    Publication date: June 7, 2018
    Inventors: Seok-Hwan Hwang, Young-Kook KIM, Yoon-Hyun Kwak, Jong-Hyuk Lee, Kwan-Hee Lee, Min-Seung Chun
  • LIGHT EMITTING DIODE
    Publication number: 20180138373
    Abstract: A light emitting diode is presented, including: a first electrode; a second electrode overlapping the first electrode; an emission layer interposed between the first electrode and the second electrode; and a light efficiency improving layer positioned on at least one of the first electrode and the second electrode, wherein at least one of the first electrode and the second electrode may include one surface facing the emission layer and the other surface opposing the one surface and including the other surface on which the light efficiency improving layer is positioned.
    Type: Application
    Filed: November 8, 2017
    Publication date: May 17, 2018
    Inventors: Sang Hyun HAN, Jong Woo KIM, Young Kook KIM, Seok Hwan HWANG
  • Arylamine-based compound and organic light emitting diode comprising the same
    Patent number: 9960359
    Abstract: An arylamine-based compound is represented by Formula 1 below. The arylamine-based compound is included in an organic light emitting diode.
    Type: Grant
    Filed: October 23, 2013
    Date of Patent: May 1, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seok-Hwan Hwang, Young-Kook Kim, Hye-Jin Jung, Jun-Ha Park, Eun-Young Lee, Jin-O Lim, Sang-Hyun Han, Eun-Jae Jeong, Soo-Yon Kim, Jong-Hyuk Lee
  • Phenylcarbazole-based compounds and fluorene-based compounds and organic light emitting device and flat panel display device comprising the same
    Patent number: 9917258
    Abstract: Provided are an organic light emitting device including: a substrate; a first electrode; a second electrode; and an organic layer interposed between the first electrode and the second electrode and including an emission layer, wherein one of the first electrode and the second electrode is a reflective electrode and the other is a semitransparent or transparent electrode, and wherein the organic layer includes a layer having at least one of the compounds having at least one carbazole group, and a flat panel display device including the organic light emitting device. The organic light emitting device has low driving voltage, excellent current density, high brightness, excellent color purity, high efficiency, and long lifetime.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: March 13, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seok-Hwan Hwang, Young-Kook Kim, Yoon-Hyun Kwak, Jong-Hyuk Lee, Kwan-Hee Lee, Min-Seung Chun
  • Pyrene-based compound and organic light-emitting diode including the same
    Patent number: 9882141
    Abstract: A pyrene-based compound and an organic light-emitting diode including the pyrene-based compound are provided.
    Type: Grant
    Filed: October 8, 2013
    Date of Patent: January 30, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hye-Jin Jung, Seok-Hwan Hwang, Young-Kook Kim, Jin-O Lim, Sang-Hyun Han, Eun-Jae Jeong, Soo-Yon Kim, Jun-Ha Park, Eun-Young Lee, Chang-Ho Lee, Jong-Hyuk Lee
  • Aryl amine condensed cyclic compound comprising pyrene moieties and organic light-emitting diode (OLED) including the same
    Patent number: 9876176
    Abstract: A condensed compound is represented by Formula 1 below: An organic light-emitting diode includes a substrate, a first electrode on the substrate, a second electrode disposed opposite to the first electrode, and an organic layer interposed between the first electrode and the second electrode. The organic layer includes at least one layer including a compound of Formula 1.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: January 23, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Soo-Yon Kim, Seok-Hwan Hwang, Young-Kook Kim, Jun-Ha Park, Hye-Jin Jung, Eun-Young Lee, Sang-Hyun Han, Jin-O Lim
  • Condensed-cyclic compound and organic light-emitting device comprising the same
    Patent number: 9837614
    Abstract: A condensed-cyclic compound represented by Formula 1 and an organic light-emitting device including the condensed-cyclic compound. wherein R1 to R10 are defined as in the specification.
    Type: Grant
    Filed: May 1, 2014
    Date of Patent: December 5, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Eun-Young Lee, Seok-Hwan Hwang, Young-Kook Kim, Jun-Ha Park, Hye-Jin Jung, Jin-O Lim, Jong-Woo Kim, Sang-Hyun Han, Kwang-Hyun Kim, Eun-Jae Jeong, Soo-Yon Kim
  • Condensed cyclic compound and organic light-emitting device comprising the same
    Patent number: 9831443
    Abstract: A condensed cyclic compound and an organic light-emitting device including the same are provided.
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: November 28, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Eun-Young Lee, Young-Kook Kim, Jun-Ha Park, Sung-Soo Bae, Eun-Jae Jeong, Seok-Hwan Hwang
  • Organic light-emitting device
    Patent number: 9822133
    Abstract: Provided is an organic light-emitting device including a first electrode, a second electrode, an emission layer between the first electrode and the second electrode, and a hole transport region between the first electrode and the emission layer, wherein the hole transport region includes an auxiliary layer, the auxiliary layer including at least one amine-based compound represented by Formula 1: where R11, R12, R13, R14, R15, R16, X11, L11, L12, L13, a11, a12, a13, b15, and b16 are as defined in the specification.
    Type: Grant
    Filed: April 3, 2015
    Date of Patent: November 21, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Myeong-Suk Kim, Hye-In Jeong, Seok-Hwan Hwang, Sam-IL Kho, Ja-Hyun Im