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).

  • Condensed-cyclic compound and organic light-emitting device including the same
    Patent number: 9564601
    Abstract: A condensed-cyclic compound and an organic light-emitting device including the same, the compound being represented by Formula 1, below:
    Type: Grant
    Filed: April 22, 2014
    Date of Patent: February 7, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Soo-Yon Kim, Seok-Hwan Hwang, Young-Kook Kim, Hye-Jin Jung, Jun-Ha Park, Eun-Young Lee, Jong-Woo Kim, Jin-O Lim, Sang-Hyun Han, Kwang-Hyun Kim, Eun-Jae Jeong
  • Compound with electron injection and/or electron transport capabilities and organic light-emitting device including the same
    Patent number: 9559310
    Abstract: A compound represented by Formula 1 below and an organic light-emitting device including the compound are provided: Substituents in Formula 1 are the same as defined in the specification.
    Type: Grant
    Filed: June 21, 2013
    Date of Patent: January 31, 2017
    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
  • Organic compound and organic light emitting diode device including the same
    Patent number: 9548456
    Abstract: Disclosed are a novel organic compound and an organic light emitting diode device using the same. More particularly, a novel organic compound having electrical stability, high charge transport capability, and light emitting performance, high glass transition temperature and being capable of preventing crystallization, and an organic light emitting diode device including an organic layer including the same are disclosed.
    Type: Grant
    Filed: August 2, 2013
    Date of Patent: January 17, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Eun-Young Lee, Seok-Hwan Hwang, Young-Kook Kim, Hye-Jin Jung, Jun-Ha Park, 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: 20170005273
    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: September 15, 2016
    Publication date: January 5, 2017
    Inventors: Seok-Hwan Hwang, Young-Kook Kim, Yoon-Hyun Kwak, Jong-Hyuk Lee, Kwan-Hee Lee, Min-Seung Chun
  • Condensed-cyclic compound and organic light-emitting diode including the condensed-cyclic compound
    Patent number: 9537104
    Abstract: A condensed-cyclic compound and an organic light-emitting diode including the condensed-cyclic compound.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: January 3, 2017
    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
  • Heterocyclic compound and organic light-emitting device including the same
    Patent number: 9537108
    Abstract: Provided is a heterocyclic compound represented by Formula 1 below and an organic light-emitting device including the same. In Formula 1, R1 to R8 are each independently a hydrogen atom, a deuterium atom, a substituted or unsubstituted C1 to C60 alkyl group, a substituted or unsubstituted C3 to C60 cycloalkyl group, a substituted or unsubstituted C2 to C60 heteroaryl group, a substituted or unsubstituted C6 to C60 aryl group, or a substituted or unsubstituted C6 to C60 condensed polycyclic group, with the proviso that R2 is not wherein X is O, S, or Se.
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: January 3, 2017
    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, Eun-Jae Jeong, 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: 9478754
    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 28, 2015
    Date of Patent: October 25, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seok-Hwan Hwang, Young-Kook Kim, Yoon-Hyun Kwak, Jong-Hyuk Lee, Kwan-Hee Lee, Min-Seung Chun
  • Compound and organic light-emitting device including the same
    Patent number: 9455407
    Abstract: A compound, an organic light-emitting device, and a flat panel display device, the compound being represented by Formula 1, below:
    Type: Grant
    Filed: June 13, 2014
    Date of Patent: September 27, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jong-Woo Kim, Young-Kook Kim, Jin-O Lim, Seok-Hwan Hwang, Hyoung-Kun Kim
  • Heterocyclic compound and organic light-emitting device including the same
    Patent number: 9444056
    Abstract: A heterocyclic compound is represented by Formula 1 below. An organic light-emitting device includes a first electrode, a second electrode and an organic layer between the first electrode and the second electrode. The organic layer includes the heterocyclic compound. Organic light emitting devices including the heterocyclic compound of Formula 1 exhibit high efficiency, low voltages, high brightness, and long lifespans.
    Type: Grant
    Filed: September 26, 2013
    Date of Patent: September 13, 2016
    Assignee: Samsund 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
  • Heterocyclic compound and organic light-emitting device including the same
    Patent number: 9437827
    Abstract: A heterocyclic compound represented by Formula 1 below and an organic light-emitting device including the same,
    Type: Grant
    Filed: March 20, 2014
    Date of Patent: September 6, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seok-Hwan Hwang, Young-Kook Kim, Jun-Ha Park, Hye-Jin Jung, Jin-O Lim, Eun-Young Lee, Sang-Hyun Han, Eun-Jae Jeong, Soo-Yon Kim, Jong-Hyuk Lee
  • Heterocyclic compound and organic light-emitting device including the same
    Patent number: 9425407
    Abstract: A compound represented by Formula 1 or Formula 2 and an organic light-emitting device including the same:
    Type: Grant
    Filed: March 5, 2014
    Date of Patent: August 23, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seok-Hwan Hwang, Soo-Yon Kim, Jong-Woo Kim
  • Condensed cyclic compound and organic light-emitting device including the same
    Patent number: 9425416
    Abstract: A condensed cyclic compound of Formula 1 is provided. An organic light-emitting device includes the same.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: August 23, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hye-Jin Jung, Seok-Hwan Hwang, Young-Kook Kim, Jun-Ha Park, Eun-Young Lee, Jin-O Lim, Sang-Hyun Han, Eun-Jae Jeong, Soo-Yon Kim
  • Heterocyclic compound and organic light-emitting diode comprising the same
    Patent number: 9419228
    Abstract: A heterocyclic compound is represented by Formula 1 below and an organic light-emitting diode includes the heterocyclic compound. The heterocyclic compounds exhibit good electrical properties, high charge transporting and light-emitting capabilities, and high glass transition temperatures. Organic light-emitting diodes including the compounds of Formula 1 exhibit improved driving voltage, efficiency, brightness, and lifetime characteristics.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: August 16, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seok-Hwan Hwang, Young-Kook Kim, Jun-Ha Park, Hye-Jin Jung, Jin-O Lim, Eun-Young Lee, Sang-Hyun Han, Eun-Jae Jeong, Soo-Yon Kim, Jong-Hyuk Lee
  • Compound and organic light-emitting diode including the same
    Patent number: 9406890
    Abstract: An embodiment is directed to compound represented by Formula 1 below: wherein, in Formula 1, Ar1, Ar2, Ar3, and Ar4 are each independently a substituted or unsubstituted C6-C60 aryl group, a substituted or unsubstituted C10-C60 condensed polycyclic group, or a substituted or unsubstituted C3-C60 heteroaryl group; a is an integer from 0 to 2, b is an integer from 0 to 4, c is an integer from 1 to 3, and when b is 2 or more, Ar4 is identical to or different from each other.
    Type: Grant
    Filed: July 2, 2013
    Date of Patent: August 2, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jin-O Lim, Seok-Hwan Hwang, Young-Kook Kim, Jun-Ha Park, Hye-Jin Jung, Eun-Young Lee, Sang-Hyun Han, Eun-Jae Jeong, Soo-Yon Kim, Jong-Hyuk Lee
  • Compound and organic light-emitting diode including the same
    Patent number: 9397300
    Abstract: Provided is an organic light-emitting diode including a compound of Formula 1 below: A detailed description of a substituent in Formula 1 above is defined as described in the detailed description.
    Type: Grant
    Filed: June 21, 2013
    Date of Patent: July 19, 2016
    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
  • Heterocyclic compound and organic light-emitting diode including the same
    Patent number: 9391282
    Abstract: A heterocyclic compound is represented by Formula 1. The heterocyclic compound may be used in an organic layer of an organic light-emitting diode. An organic light-emitting diode includes a first electrode, a second electrode and an organic layer, and the organic layer includes the heterocyclic compound represented by Formula 1. The organic light-emitting diode may be used in a flat panel display device, in which the first electrode of the organic light-emitting diode may be electrically connected to a source or drain electrode of a thin film transistor.
    Type: Grant
    Filed: June 18, 2013
    Date of Patent: July 12, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Eun-Young Lee, Seok-Hwan Hwang, Young-Kook Kim, Jun-Ha Park, Hye-Jin Jung, Jin-O Lim, Sang-Hyun Han, Eun-Jae Jeong, Soo-Yon Kim, Jong-Hyuk Lee
  • Heterocyclic compound and organic light-emitting device including the same
    Patent number: 9391280
    Abstract: Provided is a heterocyclic compound represented by Formula 1 below and an organic light-emitting device including the heterocyclic compound of Formula 1: <Formula 1> wherein substituents in Formula 1 above are defined as in the specification.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: July 12, 2016
    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
  • Heterocyclic compound and organic light emitting device including the same
    Patent number: 9385325
    Abstract: Provided is a heterocyclic compound represented by Formula 1 below and an organic light-emitting device including the compound of Formula 1: wherein substituents in Formula 1 above are defined as in the specification.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: July 5, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Young-Kook Kim, Seok-Hwan Hwang, Hye-Jin Jung, Jun-Ha Park, Eun-Young Lee, Jin-O Lim, Sang-Hyun Han, Eun-Jae Jeong, Soo-Yon Kim, Jong-Hyuk Lee
  • Compound for organic light-emitting device and organic light-emitting device including the same
    Patent number: 9371270
    Abstract: Embodiments of the present disclosure are directed to a compound represented by Formula 1, and to organic light-emitting diodes including the compound.
    Type: Grant
    Filed: November 13, 2012
    Date of Patent: June 21, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin-O Lim, Seok-Hwan Hwang, Young-Kook Kim, Hye-Jin Jung, Sang-Hyun Han, Soo-Yon Kim, Eun-Jae Jeong, Jun-Ha Park, Eun-Young Lee, Il-Soo Oh, Jong-Hyuk Lee
  • Heterocyclic compound and organic light-emitting device comprising the same
    Patent number: 9368730
    Abstract: A heterocyclic compound represented by Formula 1 below and an organic light-emitting device including the heterocyclic compound are provided: Ar1, Ar2, Ar3 and X in Formula 1 are defined as in the specification.
    Type: Grant
    Filed: September 26, 2013
    Date of Patent: June 14, 2016
    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