Patents by Inventor Yongbum CHA

Yongbum CHA 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: 11631821
    Abstract: Provided is a heterocyclic compound of Chemical Formula 1: wherein: W1 and W2 are the same as or different from each other, and each independently is O or S; A1 and A2 each independently is a substituted or unsubstituted aryl group, or a substituted or unsubstituted heteroaryl group; R1 to R7 each independently is hydrogen, deuterium, a nitrile group, a halogen group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted silyl group, a substituted or unsubstituted amine group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heteroaryl group; and R1 to R7, A1 and A2 bond to adjacent substituents to form a substituted or unsubstituted ring, and an organic light-emitting device including the same.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: April 18, 2023
    Assignee: LG CHEM, LTD.
    Inventors: Sang Duk Suh, Sung Kil Hong, Yongbum Cha, Seong So Kim, Minseung Chun
  • Publication number: 20230086039
    Abstract: Provided is an organic light emitting device comprising a light emitting layer comprising a compound of Chemical Formula 1 and a compound of Chemical Formula 2: wherein: Ar1, Ar2, Ar4 and Ar5 are each independently a substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing N, O or S; Ar3 is hydrogen, or a substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing N, O or S; L1 to L3 are each independently a single bond or a substituted or unsubstituted C6-60 arylene; L4 to L6 are each independently a single bond or a substituted or unsubstituted C6-60 arylene or C2-60 heteroarylene containing N, O or S; L7 is a substituted or unsubstituted C6-60 arylene; R1 is hydrogen, deuterium, or a substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing one or of N, O and S; a is 0 to 7.
    Type: Application
    Filed: March 11, 2021
    Publication date: March 23, 2023
    Inventors: Minjun KIM, Dong Hoon LEE, Yongbum CHA, Sang Duk SUH, Young Seok KIM, Joongsuk OH, Seoyeon KIM
  • Publication number: 20230042871
    Abstract: A heterocyclic compound represented by Chemical Formula 1 and an organic light emitting device including the same, and the heterocyclic compound which is used as a material of an organic material layer of the organic light emitting device and provides improved efficiency, low driving voltage and improved lifetime characteristics of the organic light emitting device.
    Type: Application
    Filed: November 8, 2019
    Publication date: February 9, 2023
    Inventors: Dong Uk Heo, Sung Kil Hong, Jungoh Huh, Yongbum Cha, Miyeon Han, Jae Tak Lee, Junghoon Yang
  • Patent number: 11569453
    Abstract: Provided is a compound of Chemical Formula 1: where A and B each independently is a substituted or unsubstituted aryl group, a substituted or unsubstituted monocyclic or dicyclic heteroaryl group, a substituted or unsubstituted dibenzofuran group, a substituted or unsubstituted benzonaphthofuran group, a substituted or unsubstituted dibenzothiophene group, a substituted or unsubstituted benzonaphthothiophene group, a substituted or unsubstituted phenoxazine group, a substituted or unsubstituted phenothiazine group, a substituted or unsubstituted phenanthroline group, a substituted or unsubstituted benzoquinoline group, a substituted or unsubstituted arylamine group, a substituted or unsubstituted silyl group, or a substituted or unsubstituted phosphine oxide group, or one of the following substituents: and an organic light emitting device including the same.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: January 31, 2023
    Assignee: LG CHEM, LTD.
    Inventors: Junghoon Yang, Dong Hoon Lee, Jungoh Huh, Yongbum Cha, Dong Uk Heo, Miyeon Han, Jae Tak Lee, Heekyung Yun
  • Publication number: 20230006161
    Abstract: Provided is an organic light emitting device including an anode; a cathode; a light emitting layer between the anode and the cathode; a first organic material layer between the light emitting layer and the anode; and a second organic material layer between the light emitting layer and the cathode, wherein the first organic material layer comprises a compound of Chemical Formula 1, the light emitting layer comprises a compound of Chemical Formula 2, the second organic material layer comprises a compound of Chemical Formula 3, and Chemical Formula 1 and Chemical Formula 3 satisfy one or more of <Equation 1> to <Equation 3>: |EL1|<EL3|??<Equation 1> Es1>Es3??<Equation 2> ET1>ET3??<Equation 3>
    Type: Application
    Filed: January 28, 2021
    Publication date: January 5, 2023
    Inventors: Dongkeun SONG, Jaegoo LEE, Yongbum CHA, Dong Uk HEO, Woochul LEE, Jiyoung NOH, Jun Young LEE
  • Publication number: 20220367819
    Abstract: A compound represented by Chemical Formula 1 and an organic light emitting device including the same.
    Type: Application
    Filed: June 1, 2021
    Publication date: November 17, 2022
    Inventors: Yongbum Cha, Sung Kil Hong, Dong Uk Heo, Woo Jin Cho, Jaegoo Lee
  • Publication number: 20220348597
    Abstract: An organic light emitting device comprising a light emitting layer including a compound of Chemical Formula 1, and a first organic material layer including a compound of Chemical Formula 2.
    Type: Application
    Filed: November 27, 2020
    Publication date: November 3, 2022
    Inventors: Hyeon Jin Mun, Sujeong Geum, Sung Kil Hong, Yongbum Cha, Jaegoo Lee
  • Patent number: 11482677
    Abstract: The present specification relates to a compound and an organic electronic device including the same.
    Type: Grant
    Filed: January 9, 2017
    Date of Patent: October 25, 2022
    Inventors: Yongbum Cha, Sung Kil Hong, Jungoh Huh, Jin Joo Kim
  • Patent number: 11462695
    Abstract: Provided is an organic light emitting device including an anode; a cathode; and a light emitting layer provided between the anode and cathode, wherein an electron control layer provided between the light emitting layer and the cathode and including a compound of Chemical Formula 1: is included, and the light emitting layer includes a compound of Chemical Formula 3:
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: October 4, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Dong Uk Heo, Dong Hoon Lee, Jungoh Huh, Boonjae Jang, Yongbum Cha, Miyeon Han, Junghoon Yang, Heekyung Yun
  • Publication number: 20220310935
    Abstract: Provided is an organic light-emitting device comprising an anode, a cathode, and a first organic layer and a second organic layer provided between the anode and the cathode, wherein the first organic layer comprises a compound of Chemical Formula 1: and the second organic layer comprises a compound Chemical Formula 2:
    Type: Application
    Filed: June 18, 2020
    Publication date: September 29, 2022
    Inventors: So Young CHOI, Yongbum CHA, Hoon Jun KIM, Eunjin HAN, Hyungjin LEE, Wanpyo HONG, Min Woo LEE, Mina KIM, Sangmin OH, Sangjoon KIM
  • Publication number: 20220302392
    Abstract: The present disclosure relates to an organic light emitting device having improved driving voltage, efficiency and lifetime.
    Type: Application
    Filed: October 29, 2020
    Publication date: September 22, 2022
    Inventors: Jaegoo Lee, Yongbum Cha, Dong Uk Heo, Woochul Lee, Dongkeun Song, Jiyoung Noh
  • Patent number: 11450819
    Abstract: The present specification relates to a heterocyclic compound represented by Chemical Formula 1 and an organic light emitting device comprising the same.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: September 20, 2022
    Inventors: Dong Uk Heo, Dong Hoon Lee, Jungoh Huh, Boonjae Jang, Yongbum Cha, Miyeon Han, Junghoon Yang, Heekyung Yun
  • Publication number: 20220246848
    Abstract: An organic light emitting device including a hole transport layer comprising a compound of Chemical Formula 1 and an electron blocking layer comprising a compound of Chemical Formula 2, and having improved driving voltage, efficiency, and lifespan.
    Type: Application
    Filed: January 11, 2021
    Publication date: August 4, 2022
    Inventors: Yongbum Cha, Woo Jin Cho, Sung Kil Hong, Jaegoo Lee
  • Publication number: 20220123218
    Abstract: Provided is an organic electroluminescent device, the organic electroluminescent device comprising a cathode, an anode, and one or more organic material layers provided between the cathode and the anode, the one or more organic material layers comprising a light emitting layer, an electron transport region and a hole transport region, wherein all of the organic materials, other than a dopant, contained in the one or more organic material layers have a triplet state energy of 2.5 eV or higher, at least three types of the organic materials having a triplet state energy of 2.5 eV or higher have a triplet state energy of 2.7 eV or higher, and at least two types of the organic materials having a triplet state energy of 2.5 eV or higher include a spiro compound.
    Type: Application
    Filed: September 29, 2019
    Publication date: April 21, 2022
    Inventors: Jae Seung HA, Seong So KIM, Minseung CHUN, Sang Duk SUH, Min Woo JUNG, Boon Jae JANG, Yongbum CHA, Dong Uk HEO, Jungha LEE
  • Patent number: 11306060
    Abstract: The present specification relates to a compound and an organic electronic device comprising the same.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: April 19, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Yongbum Cha, Sang Duk Suh, Jungbum Kim, Sung Kil Hong
  • Publication number: 20220085300
    Abstract: An organic light emitting device including a light emitting layer which comprises a compound represented by Chemical Formula 1 and a compound represented by Chemical Formula 2, and the organic light emitting device having improved driving voltage, efficiency and lifetime.
    Type: Application
    Filed: November 11, 2020
    Publication date: March 17, 2022
    Inventors: Minjun Kim, Young Seok Kim, Seoyeon Kim, Da Jung Lee, Dong Hoon Lee, Yongbum Cha, Sang Duk Suh, Donghee Kim, Joongsuk Oh, Seung Won Choi, Jaehoon Sim
  • Publication number: 20220029101
    Abstract: An organic light emitting device including a first electrode; a second electrode provided to face the first electrode; and an organic material layer having one, two or more layers provided between the first electrode and the second electrode, wherein the organic material layer includes a first organic material layer including a compound of Chemical Formula 1 and a second organic material layer including a compound of Chemical Formula 2.
    Type: Application
    Filed: January 14, 2020
    Publication date: January 27, 2022
    Inventors: Sung Jae LEE, Sung KII HONG, Yongbum CHA, Woo Jin CHO, Joo Yong YOON, Hyeon Jin MUN
  • Publication number: 20220006063
    Abstract: An organic light emitting device comprising an anode, a hole transport layer, a light emitting layer including a host and a dopant, and a cathode, where a difference between a dipole moment value of a compound included in the hole transport layer and a dipole moment value of the host is 1.0 to 2.0, and the organic light emitting device having low driving voltage, high emission efficiency and long lifetime characteristics.
    Type: Application
    Filed: January 17, 2020
    Publication date: January 6, 2022
    Inventors: Jaegoo Lee, Dongkeun Song, Jiyoung Noh, Yongbum Cha, Woochul Lee
  • Patent number: 11208368
    Abstract: The present specification relates to a double spiro structure compound, and an organic light emitting device comprising the same.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: December 28, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Yongbum Cha, Jin Joo Kim
  • Patent number: 11165025
    Abstract: The present application relates to a compound and an organic electronic device including the same.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: November 2, 2021
    Inventors: Sang Duk Suh, Yongbum Cha, Sung Kil Hong, Dongheon Kim