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).

  • Heterocyclic compound and organic light-emitting device including the same
    Patent number: 9362506
    Abstract: A heterocyclic compound represented by Formula 1 below and an organic light-emitting device including the heterocyclic compound: wherein R1 to R12 are defined as in the specification.
    Type: Grant
    Filed: June 12, 2014
    Date of Patent: June 7, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Young-Kook Kim, Seok-Hwan Hwang, Yoon-Hyun Kwak, Sun-Young Lee, Hye-Jin Jung, Jin-O Lim, Jong-Hyuk Lee
  • Compound and organic light-emitting device including the same
    Patent number: 9337431
    Abstract: A compound is represented by Formula 1: The substituents R1 to R14, Ar1 to Ar4, X, and Y of Formula 1 are described herein. An organic light emitting device includes at least one of the compound represented by Formula 1. The organic light-emitting device including the compound may have a low driving voltage, high efficiency, high brightness, and long lifespan.
    Type: Grant
    Filed: July 28, 2014
    Date of Patent: May 10, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin-O Lim, Young-Kook Kim, Jong-Woo Kim, Seok-Hwan Hwang
  • Heterocyclic compound, organic light-emitting diode comprising the heterocyclic compound, and flat panel display device comprising the organic light-emitting diode
    Patent number: 9309197
    Abstract: A heterocyclic compound represented by Formula 1 below, an organic light-emitting diode including the same, and a flat panel display device including the organic light-emitting diode: where X is *—Ar1 or wherein Ar1, Ar2, R1, R2, R3, R4, Y1, Y2, Y3, Y4, a, b, c, and d are as defined in the specification.
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: April 12, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Young-Kook Kim, Seok-Hwan Hwang, Hye-Jin Jung, Jin-O Lim, Sang-Hyun Han, Se-Jin Cho, Jong-Hyuk Lee
  • Heterocyclic compound, organic light-emitting diode including the heterocyclic compound, and flat display device including the organic light-emitting diode
    Patent number: 9312497
    Abstract: Provided are a heterocyclic compound represented by Formula 1 below, and an organic light-emitting diode and a flat display device each including the heterocyclic compound. The organic light-emitting diode including an organic layer including the heterocyclic compound has a low driving voltage, high luminescence efficiency, and long lifetime.
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: April 12, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang-Hyun Han, Seok-Hwan Hwang, Young-Kook Kim, Hye-Jin Jung, Jin-O Lim, Se-Jin Cho, Jong-Hyuk Lee
  • Organic light-emitting diode
    Patent number: 9293710
    Abstract: An organic light-emitting diode including a buffer layer including an amine-based compound.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: March 22, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Se-Jin Cho, Chang-Ho Lee, Dae-Yup Shin, Young-Mok Son, ll-Soo Oh, Hee-Joo Ko, Jin-Young Yun, Bo-Ra Lee, Seok-Hwan Hwang, Young-Kook Kim, Yoon-Hyun Kwak
  • Styryl-based compound, composition containing styryl-based compound, and organic light emitting diode including styryl-based compound
    Patent number: 9288869
    Abstract: A styryl-based compound represented by Formula 1, a composition containing the styryl-based compound, and an organic light-emitting diode (OLED) including the styryl-based compound: The styryl-based compound may exhibit high heat resistance and thus an OLED including the same may have low driving voltage, high brightness, high efficiency, and long lifetime.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: March 15, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang-Hyun Han, Seok-Hwan Hwang, Young-Kook Kim, Hye-Jin Jung, Jin-O Lim, Soo-Yon Kim, Dae-Yup Shin, Jong-Hyuk Lee
  • Heterocyclic compound and organic light-emitting device including the same
    Patent number: 9278927
    Abstract: A heterocyclic compound represented by Formula 1 or Formula 2 below, and an organic light-emitting device including the heterocyclic compound. The organic light-emitting device may include an organic layer containing the heterocyclic compound, and thus may have a low driving voltage, a high-emission efficiency, and long lifespan characteristics. wherein R1 to R12, Ar1, Ar2, A, B, a, and b are defined as in the specification.
    Type: Grant
    Filed: November 25, 2011
    Date of Patent: March 8, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Young-Kook Kim, Seok-Hwan Hwang, Hye-Jin Jung, Jin-O Lim, Sang-Hyun Han, Se-Jin Cho, Jong-Hyuk Lee
  • Arylamine compound and organic light-emitting device comprising same
    Patent number: 9276218
    Abstract: An arylamine compound of Formula 1 below and an organic light-emitting device including the arylamine compound are provided: Substituents in Formula 1 are as defined in the specification.
    Type: Grant
    Filed: September 3, 2013
    Date of Patent: March 1, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Soo-Yon Kim, Seok-Hwan Hwang, Young-Kook Kim, Hye-Jin Jung, Jin-O Lim, Sang-Hyun Han, Eun-Jae Jeong, Jun-Ha Park, Eun-Young Lee, Jong-Hyuk Lee
  • Heterocyclic compounds and organic light emitting devices including the same
    Patent number: 9252370
    Abstract: Provided are heterocyclic compounds represented by general Formula 1 below and organic light-emitting devices including the same: Such N-substituted diarylamino derivatives of 4,5-iminophenanthrene, when included in color fluorescent or phosphorescent organic light emitting devices in a hole transporting or hole injecting charge transport role, impart high efficiency, low driving voltages, high luminances and long lifetimes to these devices.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: February 2, 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
  • Compound and organic light emitting device including the same
    Patent number: 9246109
    Abstract: A compound represented by Formula 1, below, and an organic light-emitting device including the compound represented by Formula 1:
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: January 26, 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, Dae-Yup Shin, Jong-Hyuk Lee
  • Condensed-cyclic compound, organic light-emitting diode comprising the same and flat panel display device comprising the organic light-emitting diode
    Patent number: 9224961
    Abstract: A condensed-cyclic compound of Formula 1, an organic light-emitting diode (OLED) including the same and a flat panel display device including the OLED. The condensed-cyclic compound of Formula 1 may be used in an organic light-emitting diode. Accordingly, an OLED according to an embodiment of the present invention includes a first electrode, a second electrode disposed opposite to the first electrode, and a first layer interposed between the first electrode and the second electrode, wherein the first layer includes the condensed-cyclic compound represented by Formula 1. The OLED may further include at least one layer selected from the group consisting of a hole injection layer, a hole transport layer, an emission layer, a hole blocking layer, an electron transport layer and an electron injection layer.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: December 29, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Young-Kook Kim, Seok-Hwan Hwang, Hye-Jin Jung, Jin-O Lim, Jong-Hyuk Lee
  • AMINE-BASED COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE SAME
    Publication number: 20150364705
    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: Application
    Filed: December 16, 2014
    Publication date: December 17, 2015
    Inventors: Mi-Eun Jun, Sang-Hyun Han, Young-Kook Kim, Seok-Hwan Hwang, Sam-Il Kho
  • ORGANIC LIGHT-EMITTING DEVICE
    Publication number: 20150364697
    Abstract: An organic light-emitting device includes: a first electrode; a second electrode; an emission layer between the first electrode and the second electrode; a hole transport region between the first electrode and the emission layer; and an electron transport region between the second electrode and the emission layer, wherein the hole transport region includes a first compound represented by Formula 1.
    Type: Application
    Filed: March 10, 2015
    Publication date: December 17, 2015
    Inventors: Myeong-Suk Kim, Hye-In Jeong, Jin-Soo Hwang, Sam-Il Kho, Seung-Gak Yang, Ja-Hyun Im, Seok-Hwan Hwang
  • AMINE-BASED COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE SAME
    Publication number: 20150357575
    Abstract: Provided are an amine-based compound and an organic light-emitting device (OLED) including the same.
    Type: Application
    Filed: October 16, 2014
    Publication date: December 10, 2015
    Inventors: Soo-Yon Kim, Sam-Il Kho, Young-Kook Kim, Jong-Woo Kim, Seok-Hwan Hwang
  • Amine-based compound and organic light-emitting device including the same
    Patent number: 9209407
    Abstract: An amine-based compound and an organic light-emitting diode including the amine-based compound are provided. The amine-based compound may be used between a pair of electrodes of an organic light-emitting diode. For example, the amine-based compound may be used in an emission layer and/or between the emission layer and an anode (for example, in a hole injection layer, a hole transport layer, a functional layer having a hole injection ability and a hole transport ability). Accordingly, an organic light-emitting diode including a first electrode, a second electrode facing the first electrode, and an organic layer that is interposed between the first electrode and the second electrode, and includes the amine-based compound is provided.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: December 8, 2015
    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
  • AMINE-BASED COMPOUND AND ORGANIC LIGHT- EMITTING DEVICE INCLUDING THE SAME
    Publication number: 20150349265
    Abstract: A compound and an organic light-emitting device including the same, the compound being represented by Formula 1 below:
    Type: Application
    Filed: September 25, 2014
    Publication date: December 3, 2015
    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: 20150349275
    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: October 6, 2014
    Publication date: December 3, 2015
    Inventors: Eun-Jae JEONG, Young-Kook KIM, Jun-Ha PARK, Eun-Young LEE, Seok-Hwan HWANG
  • Organic light emitting display devices and methods of manufacturing organic light emitting display devices
    Patent number: 9203031
    Abstract: An organic light emitting display device comprising a first electrode; a hole transport layer, an emitting layer and an electron transport layer disposed sequentially on the first electrode; and a second electrode formed on the electron transport layer, wherein the emitting layer comprises a host material comprising a calixarene compound represented by Chemical Formula (1) wherein, in the Chemical Formula (1), each of R1 to R4 is defined as in the specification.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: December 1, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin-O Lim, Seok-Hwan Hwang, Young-Kook Kim, Hye-Jin Jung, Sang-Hyun Han, Jong-Hyuk Lee
  • Organic compound and organic light-emitting device comprising the same
    Patent number: 9196838
    Abstract: An organic compound represented by Formula 1 below and an organic light-emitting device including the organic compound; Wherein Ar1, Ar2, Ar3, Ar4, a, b, and c are defined as in the specification.
    Type: Grant
    Filed: July 17, 2013
    Date of Patent: November 24, 2015
    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
  • CONDENSED CYCLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE COMPRISING THE SAME
    Publication number: 20150333268
    Abstract: A condensed cyclic compound is represented by Formula 1. The components of Formula 1 are described herein. An organic light-emitting device includes the condensed cyclic compound. The organic light-emitting device has improved driving voltage, improved luminance, improved efficiency, and improved half-lifetime, as compared to those of an organic light-emitting device that does not include the condensed cyclic compound.
    Type: Application
    Filed: October 13, 2014
    Publication date: November 19, 2015
    Inventors: Sang-Hyun Han, Soo-Yon Kim, Young-Kook Kim, Seok-Hwan Hwang, Tsuyoshi Naijo