Patents by Inventor Heungwoo CHOI

Heungwoo 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).

  • Patent number: 11877464
    Abstract: Provided is an organic light emitting device that includes an anode, a cathode provided to face the anode, and one or more light emitting units provided between the anode and the cathode, wherein the organic light emitting device includes a charge generation layer provided between the anode and the one light emitting unit, or between the two light emitting units adjacent to each other among the light emitting units, the charge generation layer comprises a p-type charge injection layer, a p-type charge generation layer, or a layer which simultaneously injects and generates p-type charges, and the p-type charge injection layer, the p-type charge generation layer, or the layer which simultaneously injects and generates p-type charges has electric conductivity of 1×10?6 S/cm or more.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: January 16, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Dongheon Kim, Nansra Heo, Wanpyo Hong, Yeon Hwan Kim, Heungwoo Choi, Jun Yun, Hyungjin Lee, Jae Seung Ha
  • Patent number: 11877507
    Abstract: An organic light emitting display device is provided. The organic light emitting display device may include at least one light emitting part between al anode and a cathode, and the at least one light emitting part having at least one organic layer and a light emitting layer, wherein the at least one organic layer comprises a compound represented by Chemical Formula 1 or 2.
    Type: Grant
    Filed: April 20, 2022
    Date of Patent: January 16, 2024
    Assignees: LG Display Co., Ltd., LG Chem, Ltd.
    Inventors: Jungkeun Kim, Dohan Kim, Jeongdae Seo, Hyoseok Kim, Heungwoo Choi, Wanpyo Hong
  • Publication number: 20230389415
    Abstract: An organic light emitting display device is provided. The organic light emitting display device may include at least one light emitting part between an anode and a cathode, and the at least one light emitting part having at least one organic layer and a light emitting layer, wherein the at least one organic layer comprises a compound represented by Chemical Formula 1 or 2.
    Type: Application
    Filed: August 10, 2023
    Publication date: November 30, 2023
    Applicants: LG Display Co., Ltd., LG Chem, Ltd.
    Inventors: Jungkeun KIM, Dohan KIM, Jeongdae SEO, Hyoseok KIM, Heungwoo CHOI, Wanpyo HONG
  • Patent number: 11805696
    Abstract: An organic light emitting display device is provided. The organic light emitting display device may include at least one light emitting part between an anode and a cathode, and the at least one light emitting part having at least one organic layer and a light emitting layer, wherein the at least one organic layer comprises a compound represented by Chemical Formula 1 or 2.
    Type: Grant
    Filed: December 30, 2021
    Date of Patent: October 31, 2023
    Assignees: Display Co., Ltd., LG Chem., Ltd.
    Inventors: Jungkeun Kim, Dohan Kim, Jeongdae Seo, Hyoseok Kim, Heungwoo Choi, Wanpyo Hong
  • Publication number: 20220246855
    Abstract: An organic light emitting display device is provided.
    Type: Application
    Filed: April 20, 2022
    Publication date: August 4, 2022
    Applicants: LG Display Co., Ltd., LG Chem, Ltd.
    Inventors: Jungkeun KIM, Dohan KIM, Jeongdae SEO, Hyoseok KIM, Heungwoo CHOI, Wanpyo HONG
  • Patent number: 11349079
    Abstract: An organic light emitting display device is provided. The organic light emitting display device may include at least one light emitting part between an anode and a cathode, and the at least one light emitting part having at least one organic layer and a light emitting layer, wherein the at least one organic layer comprises a compound represented by Chemical Formula 1 or 2.
    Type: Grant
    Filed: June 4, 2020
    Date of Patent: May 31, 2022
    Assignees: LG Display Co., Ltd., LG Chem, Ltd.
    Inventors: Jungkeun Kim, Dohan Kim, Jeongdae Seo, Hyoseok Kim, Heungwoo Choi, Wanpyo Hong
  • Publication number: 20220123217
    Abstract: An organic light emitting display device is provided. The organic light emitting display device may include at least one light emitting part between an anode and a cathode, and the at least one light emitting part having at least one organic layer and a light emitting layer, wherein the at least one organic layer comprises a compound represented by Chemical Formula 1 or 2.
    Type: Application
    Filed: December 30, 2021
    Publication date: April 21, 2022
    Applicants: LG Display Co., Ltd., LG Chem, Ltd.
    Inventors: Jungkeun KIM, Dohan KIM, Jeongdae SEO, Hyoseok KIM, Heungwoo CHOI, Wanpyo HONG
  • Publication number: 20220102640
    Abstract: An organic light emitting display device is provided. The organic light emitting display device may include at least one light emitting part between an anode and a cathode, and the at least one light emitting part having at least one organic layer and a light emitting layer, wherein the at least one organic layer comprises a compound represented by Chemical Formula 1 or 2.
    Type: Application
    Filed: June 4, 2020
    Publication date: March 31, 2022
    Applicants: LG Display Co., Ltd., LG CHEM, LTD.
    Inventors: Jungkeun KIM, Dohan KIM, Jeongdae SEO, Hyoseok KIM, Heungwoo CHOI, Wanpyo HONG
  • Patent number: 11158810
    Abstract: The present specification provides a multicyclic compound of Chemical Formula 1, and an organic light emitting device including the same.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: October 26, 2021
    Inventors: Wanpyo Hong, Hyoungcheul Kim, Yun Hwan Kim, Heungwoo Choi, Jun Yun
  • Patent number: 11158808
    Abstract: An organic light emitting display device is provided. The organic light emitting display device may include at least one light emitting part between an anode and a cathode, and the at least one light emitting part having at least one organic layer and a light emitting layer, wherein the at least one organic layer comprises a compound represented by Chemical Formula 1 or 2.
    Type: Grant
    Filed: April 7, 2020
    Date of Patent: October 26, 2021
    Assignees: LG Display Co., Ltd., LG Chem, Ltd.
    Inventors: Jungkeun Kim, Dohan Kim, Jeongdae Seo, Hyoseok Kim, Heungwoo Choi, Wanpyo Hong
  • Publication number: 20200303651
    Abstract: An organic light emitting display device is provided. The organic light emitting display device may include at least one light emitting part between an anode and a cathode, and the at least one light emitting part having at least one organic layer and a light emitting layer, wherein the at least one organic layer comprises a compound represented by Chemical Formula 1 or 2.
    Type: Application
    Filed: June 4, 2020
    Publication date: September 24, 2020
    Applicants: LG Display Co., Ltd., LG CHEM, LTD.
    Inventors: Jungkeun KIM, Dohan KIM, Jeongdae SEO, Hyoseok KIM, Heungwoo CHOI, Wanpyo HONG
  • Publication number: 20200235302
    Abstract: An organic light emitting display device is provided. The organic light emitting display device may include at least one light emitting part between an anode and a cathode, and the at least one light emitting part having at least one organic layer and a light emitting layer, wherein the at least one organic layer comprises a compound represented by Chemical Formula 1 or 2.
    Type: Application
    Filed: April 7, 2020
    Publication date: July 23, 2020
    Applicant: LG Display Co., Ltd.
    Inventors: Jungkeun KIM, Dohan KIM, Jeongdae SEO, Hyoseok KIM, Heungwoo CHOI, Wanpyo HONG
  • Patent number: 10658593
    Abstract: An organic light emitting display device is provided. The organic light emitting display device may include at least one light emitting part between an anode and a cathode, and the at least one light emitting part having at least one organic layer and a light emitting layer, wherein the at least one organic layer comprises a compound represented by Chemical Formula 1 or 2.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: May 19, 2020
    Assignees: LG DISPLAY CO., LTD, LG CHEM, LTD.
    Inventors: Jungkeun Kim, Dohan Kim, Jeongdae Seo, Hyoseok Kim, Heungwoo Choi, Wanpyo Hong
  • Publication number: 20200144552
    Abstract: Provided is an organic light emitting device that includes an anode, a cathode provided to face the anode, and one or more light emitting units provided between the anode and the cathode, wherein the organic light emitting device includes a charge generation layer provided between the anode and the one light emitting unit, or between the two light emitting units adjacent to each other among the light emitting units, the charge generation layer comprises a p-type charge injection layer, a p-type charge generation layer, or a layer which simultaneously injects and generates p-type charges, and the p-type charge injection layer, the p-type charge generation layer, or the layer which simultaneously injects and generates p-type charges has electric conductivity of 1×10?6 S/cm or more.
    Type: Application
    Filed: May 11, 2018
    Publication date: May 7, 2020
    Inventors: Dongheon KIM, Nansra HEO, Wanpyo HONG, Yeon Hwan KIM, Heungwoo CHOI, Jun YUN, Hyungjin LEE, Jae Seung HA
  • Publication number: 20200127207
    Abstract: The present specification provides a multicyclic compound of Chemical Formula 1, and an organic light emitting device including the same.
    Type: Application
    Filed: October 12, 2016
    Publication date: April 23, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Wanpyo Hong, Hyoungcheul Kim, Yun Hwan Kim, Heungwoo Choi, Jun Yun
  • Publication number: 20170162792
    Abstract: An organic light emitting display device is provided. The organic light emitting display device may include at least one light emitting part between an anode and a cathode, and the at least one light emitting part having at least one organic layer and a light emitting layer, wherein the at least one organic layer comprises a compound represented by Chemical Formula 1 or 2.
    Type: Application
    Filed: August 29, 2016
    Publication date: June 8, 2017
    Applicants: LG DISPLAY CO., LTD., LG CHEM, LTD.
    Inventors: Jungkeun KIM, Dohan KIM, Jeongdae SEO, Hyoseok KIM, Heungwoo CHOI, Wanpyo HONG
  • Publication number: 20150060833
    Abstract: The present specification provides a novel compound that is capable of largely improving an expected life span, efficiency, electrochemical stability, and thermal stability of an organic electronic device, and an organic electronic device that includes an organic material layer including the compound.
    Type: Application
    Filed: September 24, 2014
    Publication date: March 5, 2015
    Inventors: Hyok Joon KWON, Kidong KOO, Kongkyeom KIM, Minjun KIM, Seong So KIM, Hyoung Seok KIM, Hyoungcheul KIM, Sang Young JEON, Heungwoo CHOI