Patents by Inventor DooWhan Choi

DooWhan Choi 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).

  • Copolymer and Organic Solar Cell Including Same
    Publication number: 20190390001
    Abstract: The present specification provides a copolymer including: a repeating unit derived from a compound represented by Formula 1; a first conjugated monomer; and a second conjugated monomer different from the first conjugated monomer, and an organic solar cell including the same.
    Type: Application
    Filed: June 22, 2018
    Publication date: December 26, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Bogyu Lim, Ji Hoon Kim, Songrim Jang, Doowhan Choi
  • ORGANIC SOLAR CELL
    Publication number: 20190393364
    Abstract: The present specification relates to an organic solar cell including a first electrode; a second electrode disposed opposite to the first electrode; and one or more organic material layers disposed between the first electrode and the second electrode and including a photoactive layer, wherein the photoactive layer includes an electron donor and an electron acceptor, and the electron acceptor is a dual electron acceptor including both a fullerene-based compound and a non-fullerene-based compound.
    Type: Application
    Filed: May 28, 2018
    Publication date: December 26, 2019
    Inventors: DOOWHAN CHOI, JIYOUNG LEE, BOGYU LIM, SONGRIM JANG, Jl HOON KIM
  • POLYMER AND ORGANIC SOLAR CELL COMPRISING SAME
    Publication number: 20190378987
    Abstract: The present specification relates to a polymer and an organic solar cell including the same.
    Type: Application
    Filed: December 13, 2017
    Publication date: December 12, 2019
    Inventors: Ji Hoon KIM, Doowhan CHOI, Songrim JANG, Bogyu LIM
  • ORGANIC SOLAR CELL
    Publication number: 20190378988
    Abstract: The present specification relates to an organic solar cell including a first electrode; a second electrode; and one or more organic material layers including a photoactive layer, wherein the photoactive layer includes an electron donor and an electron acceptor, the electron donor includes a polymer including a first unit represented by Chemical Formula 1; a second unit represented by Chemical Formula 2; and a third unit represented by Chemical Formula 3, and the electron acceptor includes a non-fullerene-based compound.
    Type: Application
    Filed: June 18, 2018
    Publication date: December 12, 2019
    Inventors: DOOWHAN CHOI, JIYOUNG LEE, BOGYU LIM, SONGRIM JANG, Jl HOON KIM
  • PHOTOACTIVE LAYER AND ORGANIC SOLAR CELL INCLUDING SAME
    Publication number: 20190372039
    Abstract: The present specification provides a photoactive layer including: an electron donor; and an electron acceptor, in which the electron donor includes: a single molecular material; and a polymer material, a content of the electron donor is higher than a content of the electron acceptor, and in the electron donor, a content of the single molecular material is higher than a content of the polymer material, and an organic solar cell including the same.
    Type: Application
    Filed: April 13, 2018
    Publication date: December 5, 2019
    Inventors: SONGRIM JANG, KYUNGKON KIM, JINSECK KIM, DOOWHAN CHOI, BOGYU LIM, KYUWAN CHO
  • COMPOUND AND ORGANIC SOLAR CELL COMPRISING SAME
    Publication number: 20190372031
    Abstract: The present specification provides a compound including a unit represented by Formula 1 and an organic solar cell including the same.
    Type: Application
    Filed: May 14, 2018
    Publication date: December 5, 2019
    Inventors: BOGYU LIM, SONGRIM JANG, DOOWHAN CHOI, Ji HOON KIM
  • Compound and organic solar cell comprising same
    Publication number: 20190363262
    Abstract: The present specification provides the compound represented by Formula 1 and an organic solar cell including the same.
    Type: Application
    Filed: March 16, 2018
    Publication date: November 28, 2019
    Inventors: BOGYU LIM, SONGRIM JANG, DOOWHAN CHOI, Jl HOON KIM
  • POLYMER AND ORGANIC SOLAR CELL INCLUDING SAME
    Publication number: 20190359765
    Abstract: The present specification relates to a polymer including a first unit represented by Chemical Formula 1; a second unit represented by Chemical Formula 2; and a third unit represented by Chemical Formula 3 or 4, and an organic solar cell including the polymer in a photoactive layer.
    Type: Application
    Filed: September 11, 2018
    Publication date: November 28, 2019
    Inventors: JI HOON KIM, JIYOUNG LEE, SONGRIM JANG, DOOWHAN CHOI, BOGYU LIM
  • Organic solar cell and manufacturing method therefor
    Patent number: 10439142
    Abstract: The present specification relates to an organic solar cell and a method for manufacturing the same.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: October 8, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Hangken Lee, Jiyoung Lee, Jaechol Lee, Songrim Jang, Doowhan Choi, Jiwon Bang
  • HETEROCYCLIC COMPOUND AND ORGANIC ELECTRONIC DEVICE COMPRISING SAME
    Publication number: 20190284210
    Abstract: The present specification relates to a heterocyclic compound of Chemical Formula 1 and an organic electronic device including the same.
    Type: Application
    Filed: January 31, 2018
    Publication date: September 19, 2019
    Inventors: Ji Hoon KIM, Jiyoung LEE, Songrim JANG, Doowhan CHOI, Bogyu LIM, Junghyun PARK
  • Heterocyclic compound and organic solar cell comprising the same
    Patent number: 10355221
    Abstract: The present specification relates to a heterocyclic compound and an organic solar cell including the same.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: July 16, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Bogyu Lim, Doowhan Choi, Jaechol Lee, Keun Cho
  • ORGANIC ELECTRONIC ELEMENT AND METHOD FOR MANUFACTURING SAME
    Publication number: 20190203016
    Abstract: The present specification relates to an organic electronic device and a method for manufacturing the same.
    Type: Application
    Filed: March 29, 2017
    Publication date: July 4, 2019
    Applicant: LG CHEM, LTD.
    Inventors: Doowhan CHOI, Jaesoon BAE, Jiyoung LEE, Jaechol LEE
  • Polymer and organic electronic element comprising same
    Patent number: 10312445
    Abstract: The present specification relates to a polymer, which comprises an electron acceptor functional group on a side chain and is represented by chemical formula 1 below, and to an organic electronic element comprising the same.
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: June 4, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Bogyu Lim, Jaechol Lee, Doowhan Choi, Sungkyoung Kang
  • ORGANIC SOLAR CELL AND METHOD FOR MANUFACTURING SAME
    Publication number: 20190074443
    Abstract: The present specification provides an organic solar cell, and a method for manufacturing the same.
    Type: Application
    Filed: March 13, 2017
    Publication date: March 7, 2019
    Inventors: Doowhan CHOI, Jaechol LEE, Jinseck KIM, Songrim JANG, Donggu LEE
  • ORGANIC SOLAR CELL MODULE AND METHOD FOR MANUFACTURING SAME
    Publication number: 20180182963
    Abstract: The present invention relates to a manufacturing method of an organic solar cell module and an organic solar cell module, and more particularly, to an organic solar cell module and a manufacturing method thereof, in which lower electrodes are spaced and etched in a staggered pattern and upper electrodes are coated to correspond to the lower electrodes to reduce a photoactive area of a sub cell and arrange more sub cells than sub cells in the related art in a predetermined area. Further, the present invention relates to an organic solar cell module and a manufacturing method thereof, which can reduce the installation cost and the manufacturing cost by coating a buffer layer and a photoactive layer on the lower electrode etched in the staggered pattern using a slot die coating apparatus in the related art.
    Type: Application
    Filed: March 28, 2017
    Publication date: June 28, 2018
    Inventors: Younshin KIM, Jaechol LEE, Hangken LEE, Songrim JANG, Doowhan CHOI
  • ORGANIC SOLAR CELL AND MANUFACTURING METHOD THEREFOR
    Publication number: 20180175219
    Abstract: The present application relates to an organic solar cell including: a first electrode; a second electrode which is disposed to face the first electrode; and an organic material layer having one or more layers which includes a photoactive layer disposed between the first electrode and the second electrode, in which one or more layers of the organic material layer include two or more regions having different thicknesses.
    Type: Application
    Filed: December 5, 2016
    Publication date: June 21, 2018
    Inventors: Songrim JANG, Younshin KIM, Jaechol LEE, Doowhan CHOI, Jiyoung LEE, Jinseck KIM
  • POLYMER AND ORGANIC ELECTRONIC ELEMENT COMPRISING SAME
    Publication number: 20180083195
    Abstract: The present specification relates to a polymer, which comprises an electron acceptor functional group on a side chain and is represented by chemical formula 1 below, and to an organic electronic element comprising the same.
    Type: Application
    Filed: May 24, 2016
    Publication date: March 22, 2018
    Inventors: Bogyu LIM, Jaechol LEE, Doowhan CHOI, Sungkyoung KANG
  • POLYMER AND ORGANIC SOLAR CELL COMPRISING SAME
    Publication number: 20180026192
    Abstract: The present specification relates to a polymer and an organic solar cell including the same.
    Type: Application
    Filed: March 9, 2016
    Publication date: January 25, 2018
    Applicant: LG CHEM, LTD.
    Inventors: Jiyoung LEE, Doowhan CHOI, Hangken LEE, Bogyu LIM, Jaechol LEE
  • Copolymer and organic solar cell comprising same
    Patent number: 9680101
    Abstract: The present specification provides a copolymer and an organic solar cell including the same.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: June 13, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Jinseck Kim, Jaechol Lee, Keun Cho, Hangken Lee, Songrim Jang, Doowhan Choi
  • Copolymer and organic solar cell comprising same
    Patent number: 9660194
    Abstract: The present specification provides a copolymer and an organic solar cell including the same.
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: May 23, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Jinseck Kim, Songrim Jang, Jaechol Lee, Hangken Lee, Keun Cho, Jiwon Bang, Jiyoung Lee, Doowhan Choi