Patents by Inventor Yun-Ji LEE

Yun-Ji 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).

  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT EMITTING ELEMENT USING SAME
    Publication number: 20180287072
    Abstract: The present application provides a hetero-cyclic compound which may significantly improve the service life, efficiency, electrochemical stability, and thermal stability of an organic light emitting device, and an organic light emitting device in which the hetero-cyclic compound is contained in an organic compound layer.
    Type: Application
    Filed: June 7, 2018
    Publication date: October 4, 2018
    Applicant: HEESUNG MATERIAL LTD.
    Inventors: Geon-yu PARK, Han-Kook OH, Yun-Ji LEE, Dong-Jun KIM, Jin-Seok CHOI
  • Anthracene-based compound and organic light-emitting device comprising the same
    Patent number: 10026909
    Abstract: An anthracene-based compound is provided as represented by Formula 1: with substituents as described herein.
    Type: Grant
    Filed: June 25, 2014
    Date of Patent: July 17, 2018
    Assignees: SAMSUNG DISPLAY CO., LTD., Industry-Academic Cooperation Foundation Gyeongsang National University
    Inventors: Mi-Kyung Kim, Chang-Woong Chu, Se-Hun Kim, Hwan-Hee Cho, Dong-Hyun Kim, Yun-Hi Kim, Soon-Ki Kwon, Yun-Ji Lee
  • Anthracene-based compounds and organic light-emitting device including the same
    Patent number: 9966545
    Abstract: Embodiments are directed to an anthracene-based compound and an organic light-emitting device. The anthracene-based compound is represented by Formula 1: Substituents of Formula 1 are described in the specification. The organic light-emitting device may include a first electrode, a second electrode opposite to the first electrode, and an organic layer between the first and second electrodes and including an emission layer. The organic layer may include at least one anthracene-based compound of Formula 1.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: May 8, 2018
    Assignees: SAMSUNG DISPLAY CO., LTD., INDUSTRY-ACADEMIC COOPERATION FOUNDATION GYEONGSANG NATIONAL UNIVERSITY
    Inventors: Mi-Kyung Kim, Chang-Woong Chu, Se-Hun Kim, Dong-Hyun Kim, Yun-Hi Kim, Soon-Ki Kwon, Yun-ji Lee
  • HETERO-CYCLIC COMPOUND AND ORGANIC LIGHT EMITTING DEVICE USING THE SAME
    Publication number: 20170213988
    Abstract: The present application provides a hetero-cyclic compound which may significantly improve the lifetime, efficiency, electrochemical stability, and thermal stability of an organic light emitting device, and an organic light emitting device in which the hetero-cyclic compound is contained in an organic compound layer.
    Type: Application
    Filed: July 27, 2016
    Publication date: July 27, 2017
    Applicant: HEESUNG MATERIAL LTD.
    Inventors: Geon-Yu PARK, Han-Kook OH, Yun-Ji LEE, Jae-Yeol MA, Dong-Jun KIM, Jin-Seok CHOI, Dae-Hyuk CHOI, Joo-Dong LEE
  • Organic light-emitting diode
    Patent number: 9520568
    Abstract: An organic light-emitting diode including a substrate; a first electrode on the substrate; a second electrode facing the first electrode; and an emission layer between the first electrode and the second electrode, the emission layer including an anthracene-based compound represented by Formula 1, below, and a condensed ring compound represented by Formula 20, below:
    Type: Grant
    Filed: November 12, 2013
    Date of Patent: December 13, 2016
    Assignees: Industry-Academic Cooperation Foundation Gyeongsang National University, Samsung Display Co., Ltd.
    Inventors: Se-Hun Kim, Dong-Hyun Kim, Hwan-Hee Cho, Mi-Kyung Kim, Chang-Woong Chu, Yun-Ji Lee, Yun-Hi Kim, Soon-Ki Kwon
  • Organic light-emitting diode
    Patent number: 9496501
    Abstract: An organic light-emitting diode, comprising a substrate; a first electrode on the substrate; a second electrode disposed opposite to the first electrode; and an emission layer between the first electrode and the second electrode, the emission layer including an anthracene-based compound represented by Formula 1, below, and a condensed cyclic compound represented by Formula 20, below:
    Type: Grant
    Filed: November 7, 2013
    Date of Patent: November 15, 2016
    Assignees: SAMSUNG DISPLAY CO., LTD., Industry-Academic Cooperation Foundation Gyeongsang National University
    Inventors: Se-Hun Kim, Dong-Hyun Kim, Hwan-Hee Cho, Mi-Kyung Kim, Chang-Woong Chu, Yun-Ji Lee, Yun-Hi Kim, Soon-Ki Kwon
  • ANTHRACENE-BASED COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE COMPRISING THE SAME
    Publication number: 20150053945
    Abstract: An anthracene-based compound is provided as represented by Formula 1: with substituents as described herein.
    Type: Application
    Filed: June 25, 2014
    Publication date: February 26, 2015
    Inventors: Mi-Kyung KIM, Chang-Woong CHU, Se-Hun KIM, Hwan-Hee CHO, Dong-Hyun KIM, Yun-Hi KIM, Soon-Ki KWON, Yun-Ji LEE
  • ANTHRACENE-BASED COMPOUNDS AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE SAME
    Publication number: 20150053946
    Abstract: An anthracene-based compound is provided represented by Formula 1: wherein the substituents are described herein.
    Type: Application
    Filed: July 9, 2014
    Publication date: February 26, 2015
    Inventors: Mi-Kyung KIM, Chang-Woong CHU, Se-Hun KIM, Dong-Hyun KIM, Yun-Hi KIM, Soon-Ki KWON, Yun-ji LEE
  • ORGANIC LIGHT-EMITTING DEVICE
    Publication number: 20150053944
    Abstract: An organic light-emitting device includes a first electrode; a second electrode opposite to the first electrode; and an organic layer between the first electrode and the second electrode, and the organic layer including an emission layer that includes at least one silane-based compound represented by Formula 1 below and at least one anthracene-based compound represented by Formula 20 below. wherein, in Formulae 1 and 20 above, R1 to R6, R11 to R16, L1 to L4, Ar1, Ar2, a, b, c, d, i, j, l, k, and n are further defined.
    Type: Application
    Filed: June 19, 2014
    Publication date: February 26, 2015
    Inventors: Se-Hun KIM, Dong-Hyun KIM, Hwan-Hee CHO, Mi-Kyung KIM, Chang-Woong CHU, Yun-Ji LEE, Yun-Hi KIM, Soon-Ki KWON
  • ORGANIC LIGHT-EMITTING DIODE
    Publication number: 20140346464
    Abstract: An organic light-emitting diode including a substrate; a first electrode on the substrate; a second electrode facing the first electrode; and an emission layer between the first electrode and the second electrode, the emission layer including an anthracene-based compound represented by Formula 1, below, and a condensed ring compound represented by Formula 20, below:
    Type: Application
    Filed: November 12, 2013
    Publication date: November 27, 2014
    Inventors: Se-Hun KIM, Dong-Hyun KIM, Hwan-Hee CHO, Mi-Kyung KIM, Chang-Woong CHU, Yun-Ji LEE, Yun-Hi KIM, Soon-Ki KWON
  • ORGANIC LIGHT-EMITTING DIODE
    Publication number: 20140346462
    Abstract: An organic light-emitting diode, comprising a substrate; a first electrode on the substrate; a second electrode disposed opposite to the first electrode; and an emission layer between the first electrode and the second electrode, the emission layer including an anthracene-based compound represented by Formula 1, below, and a condensed cyclic compound represented by Formula 20, below:
    Type: Application
    Filed: November 7, 2013
    Publication date: November 27, 2014
    Inventors: Se-Hun KIM, Dong-Hyun KIM, Hwan-Hee CHO, Mi-Kyung KIM, Chang-Woong CHU, Yun-Ji LEE, Yun-Hi KIM, Soon-Ki KWON