Patents by Inventor Kusun CHOUNG

Kusun CHOUNG 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).

  • Publication number: 20240260446
    Abstract: An organic light-emitting diode including: a first electrode; a second electrode facing the first electrode; and an organic layer disposed between the first electrode and the second electrode. The organic layer includes a light-emitting layer that includes a dopant material including an organometallic compound represented by Chemical Formula 1, and a host material including a mixture including a compound represented by Chemical Formula 2 and a compound represented by Chemical Formula 3. The organic light-emitting diode may have excellent or desirable light-emitting efficiency and lifespan.
    Type: Application
    Filed: December 21, 2023
    Publication date: August 1, 2024
    Applicant: LG Display Co., Ltd.
    Inventors: Hansol PARK, Misang YOO, Yoojeong JEONG, Kusun CHOUNG
  • Publication number: 20240244868
    Abstract: An organic light-emitting diode including: a first electrode; a second electrode facing the first electrode; and an organic layer disposed between the first electrode and the second electrode. The organic layer includes a light-emitting layer that includes a dopant material including an organometallic compound represented by Chemical Formula 1, and a host material including a mixture including a compound represented by Chemical Formula 2 and a compound represented by Chemical Formula 3. The organic light-emitting diode may have excellent or desirable light-emitting efficiency and lifespan.
    Type: Application
    Filed: December 21, 2023
    Publication date: July 18, 2024
    Applicant: LG Display Co., Ltd.
    Inventors: Hansol PARK, Misang YOO, Yoojeong JEONG, Kusun CHOUNG
  • Publication number: 20240244947
    Abstract: Disclosed is an organic light-emitting diode including: a first electrode; a second electrode facing the first electrode; and an organic layer disposed between the first electrode and the second electrode; wherein the organic layer includes a light-emissive layer, wherein the light-emissive layer includes a dopant material and a host material, wherein the dopant material includes an organometallic compound represented by Chemical Formula 1, wherein the host material includes a mixture of a compound represented by a Chemical Formula 2 and a compound represented by Chemical Formula 3. The organic light-emitting diode has excellent light-emitting efficiency and lifespan.
    Type: Application
    Filed: December 22, 2023
    Publication date: July 18, 2024
    Applicant: LG Display Co., Ltd.
    Inventors: Kusun CHOUNG, Misang YOO, Hansol PARK, Yoojeong JEONG
  • Publication number: 20240244946
    Abstract: Disclosed is an organic light-emitting diode including: a first electrode; a second electrode facing the first electrode; and an organic layer disposed between the first electrode and the second electrode; wherein the organic layer includes a light-emissive layer, wherein the light-emissive layer includes a dopant material and a host material, wherein the dopant material includes an organometallic compound represented by Chemical Formula 1, wherein the host material includes a mixture of a compound represented by Chemical Formula 2 and a compound represented by Chemical Formula 3. The organic light-emitting diode has excellent light-emitting efficiency and lifespan.
    Type: Application
    Filed: December 22, 2023
    Publication date: July 18, 2024
    Applicant: LG Display Co., Ltd.
    Inventors: Hansol PARK, Misang YOO, Yoojeong JEONG, Kusun CHOUNG
  • Publication number: 20240244864
    Abstract: Disclosed is an organic light-emitting diode including: a first electrode; a second electrode facing the first electrode; and an organic layer disposed between the first electrode and the second electrode, wherein the organic layer includes a light-emissive layer, a hole transport layer (HTL) and an electron transport layer (ETL), wherein the light-emissive layer includes a dopant material and a host material, wherein the dopant material includes an organometallic compound represented by a Chemical Formula 1, wherein the host material includes a mixture of a compound represented by a Chemical Formula 2 and a compound represented by a Chemical Formula 3, wherein the hole transport layer includes a compound represented by a Chemical Formula 4, wherein the electron transport layer includes a compound represented by a Chemical Formula 5. The organic light-emitting diode has excellent light-emitting efficiency and lifespan.
    Type: Application
    Filed: December 20, 2023
    Publication date: July 18, 2024
    Applicant: LG Display Co., Ltd.
    Inventors: Kusun CHOUNG, Misang YOO, Hansol PARK, Yoojeong JEONG
  • Publication number: 20240244867
    Abstract: Disclosed is an organic light-emitting diode including: a first electrode; a second electrode facing the first electrode; and an organic layer disposed between the first electrode and the second electrode, wherein the organic layer includes a light-emissive layer, a hole transport layer (HTL) and an electron transport layer (ETL), wherein the light-emissive layer includes a dopant material and a host material, wherein the dopant material includes an organometallic compound represented by a Chemical Formula 1, wherein the host material includes a mixture of a compound represented by a Chemical Formula 2 and a compound represented by a Chemical Formula 3, wherein the hole transport layer includes a compound represented by a Chemical Formula 4, wherein the electron transport layer includes a compound represented by a Chemical Formula 5. The organic light-emitting diode has excellent light-emitting efficiency and lifespan.
    Type: Application
    Filed: December 21, 2023
    Publication date: July 18, 2024
    Applicant: LG Display Co., Ltd.
    Inventors: Kusun CHOUNG, Misang YOO, Hansol PARK, Yoojeong JEONG
  • Publication number: 20240244945
    Abstract: Disclosed is an organic light-emitting diode including: a first electrode; a second electrode facing the first electrode; and an organic layer disposed between the first electrode and the second electrode; wherein the organic layer includes a light-emitting layer, wherein the light-emitting layer includes a dopant material and a host material, wherein the dopant material includes an organometallic compound represented by Chemical Formula 1, wherein the host material includes a mixture of a compound represented by Chemical Formula 2 and a compound represented by Chemical Formula 3. The organic light-emitting diode has excellent light-emitting efficiency and lifespan.
    Type: Application
    Filed: December 21, 2023
    Publication date: July 18, 2024
    Applicant: LG Display Co., Ltd.
    Inventors: Hansol PARK, Misang YOO, Yoojeong JEONG, Kusun CHOUNG
  • Publication number: 20240244966
    Abstract: An organic light-emitting diode including: a first electrode; a second electrode facing the first electrode; and an organic layer disposed between the first electrode and the second electrode. The organic layer includes a light-emissive layer that includes a dopant material including an organometallic compound represented by Chemical Formula 1, and a host material including a mixture including a compound represented by Chemical Formula 2 and a compound represented by Chemical Formula 3. The organic light-emitting diode may have excellent or desirable light-emitting efficiency and lifespan.
    Type: Application
    Filed: December 22, 2023
    Publication date: July 18, 2024
    Applicant: LG Display Co., Ltd.
    Inventors: Kusun CHOUNG, Misang YOO, Hansol PARK, Yoojeong JEONG
  • Publication number: 20240244866
    Abstract: An organic light-emitting diode including: a first electrode; a second electrode facing the first electrode; and an organic layer disposed between the first electrode and the second electrode. The organic layer includes a light-emissive layer that includes a dopant material including an organometallic compound represented by Chemical Formula 1, and a host material including a mixture including a compound represented by Chemical Formula 2 and a compound represented by Chemical Formula 3. The organic light-emitting diode may have excellent or desirable light-emitting efficiency and lifespan.
    Type: Application
    Filed: December 21, 2023
    Publication date: July 18, 2024
    Applicant: LG Display Co., Ltd.
    Inventors: Hansol PARK, Misang YOO, Yoojeong JEONG, Kusun CHOUNG
  • Publication number: 20240244869
    Abstract: Disclosed is an organic light-emitting diode including: a first electrode; a second electrode facing the first electrode; and an organic layer disposed between the first electrode and the second electrode, wherein the organic layer includes a light-emissive layer, a hole transport layer (HTL) and an electron transport layer (ETL), wherein the light-emissive layer includes a dopant material and a host material, wherein the dopant material includes an organometallic compound represented by Chemical Formula 1, wherein the host material includes a mixture of a compound represented by Chemical Formula 2 and a compound represented by Chemical Formula 3, wherein the hole transport layer includes a compound represented by Chemical Formula 4, wherein the electron transport layer includes a compound represented by Chemical Formula 5.
    Type: Application
    Filed: December 21, 2023
    Publication date: July 18, 2024
    Applicant: LG Display Co., Ltd.
    Inventors: Yoojeong JEONG, Misang YOO, Hansol PARK, Kusun CHOUNG
  • Publication number: 20240244949
    Abstract: Disclosed is an organic light-emitting diode including: a first electrode; a second electrode facing the first electrode; and an organic layer disposed between the first electrode and the second electrode, wherein the organic layer includes a light-emissive layer, a hole transport layer (HTL) and an electron transport layer (ETL), wherein the light-emissive layer includes a dopant material and a host material, wherein the dopant material includes an organometallic compound represented by Chemical Formula 1, wherein the host material includes a mixture of a compound represented by Chemical Formula 2 and a compound represented by Chemical Formula 3, wherein the hole transport layer includes a compound represented by Chemical Formula 4, wherein the electron transport layer includes a compound represented by Chemical Formula 5.
    Type: Application
    Filed: December 22, 2023
    Publication date: July 18, 2024
    Applicant: LG Display Co., Ltd.
    Inventors: Yoojeong JEONG, Misang YOO, Hansol PARK, Kusun CHOUNG
  • Publication number: 20240244865
    Abstract: Disclosed is an organic light-emitting device including: a first electrode; a second electrode facing the first electrode; and an organic layer disposed between the first electrode and the second electrode; wherein the organic layer includes a light-emissive layer, wherein the light-emissive layer includes a dopant material and a host material, wherein the dopant material includes an organometallic compound represented by Chemical Formula 1, wherein the host material includes a mixture of a compound represented by Chemical Formula 2 and a compound represented by Chemical Formula 3. The organic light-emitting device has excellent light-emitting efficiency and lifespan.
    Type: Application
    Filed: December 20, 2023
    Publication date: July 18, 2024
    Applicant: LG Display Co., Ltd.
    Inventors: Kusun CHOUNG, Hansol PARK, Yoojeong JEONG
  • Publication number: 20240244948
    Abstract: Disclosed is an organic light-emitting diode including: a first electrode; a second electrode facing the first electrode; and an organic layer disposed between the first electrode and the second electrode, wherein the organic layer includes a light-emissive layer, a hole transport layer (HTL) and an electron transport layer (ETL), wherein the light-emissive layer includes a dopant material and a host material, wherein the dopant material includes an organometallic compound represented by Chemical Formula 1, wherein the host material includes a mixture of a compound represented by Chemical Formula 2 and a compound represented by Chemical Formula 3, wherein the hole transport layer includes a compound represented by Chemical Formula 4, wherein the electron transport layer includes a compound represented by Chemical Formula 5.
    Type: Application
    Filed: December 22, 2023
    Publication date: July 18, 2024
    Applicant: LG Display Co., Ltd.
    Inventors: Yoojeong JEONG, Misang YOO, Hansol PARK, Kusun CHOUNG
  • Patent number: 11814401
    Abstract: A new luminescent material and an electroluminescent display device using the same are disclosed, in which the luminescent material includes a compound expressed by the following chemical formula 1 and may be used as a dopant of a light emitting layer of a green, yellow-green or red color:
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: November 14, 2023
    Assignees: LG DISPLAY CO., LTD, ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.
    Inventors: HeeJun Park, Jaemin Moon, Kusun Choung, Hee Ryong Kang, Hyun Kim, Ga Won Lee, Seung Hyun Yoon, Kyoung-Jin Park
  • Publication number: 20230203074
    Abstract: Disclosed is a novel organometallic compound represented by following Chemical Formula 1. The organometallic compound acts as a dopant of a phosphorescent light-emitting layer of an organic light-emitting diode.
    Type: Application
    Filed: December 19, 2022
    Publication date: June 29, 2023
    Applicants: LG DISPLAY CO., LTD., ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.
    Inventors: Hansol PARK, Yoojeong JEONG, Kusun CHOUNG, Kyoung-Jin PARK, Hyun KIM, Jin Ri HONG, Yeon Gun LEE
  • Publication number: 20230209989
    Abstract: Disclosed is a novel organometallic compound in which a main ligand (LA) has a fused ring structure including a thiophene group. The organometallic compound acts as a dopant of a phosphorescent light-emitting layer of an organic light-emitting diode. Thus, an operation voltage of the diode is lowered, and luminous efficiency and a lifespan thereof are improved.
    Type: Application
    Filed: December 23, 2022
    Publication date: June 29, 2023
    Applicants: LG DISPLAY CO., LTD., ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.
    Inventors: Yoojeong JEONG, Hansol PARK, Kusun CHOUNG, Kyoung-Jin PARK, Hyun KIM, Jin Ri HONG, Yeon Gun LEE
  • Publication number: 20230209858
    Abstract: Disclosed is a combination of host materials of a red light-emitting layer that can lower an operation voltage of an organic light-emitting diode, and improve light-emitting efficiency and lifetime thereof. In addition, disclosed is a charge scavenger which causes quenching with polaron to reduce triplet polaron quenching (TPQ) and roll-off occurring in the organic light-emitting diode. Further, disclosed is an organic light-emitting diode including the charge scavenger.
    Type: Application
    Filed: December 1, 2022
    Publication date: June 29, 2023
    Inventors: Seongsu Jeon, Sangbeom Kim, Kusun Choung
  • Publication number: 20230203075
    Abstract: Disclosed is a novel organometallic compound in which a main ligand (LA) has a fused ring structure including a thiophene group. The organometallic compound acts as a dopant of a phosphorescent light-emitting layer of an organic light-emitting diode. Thus, an operation voltage of the diode is lowered, and luminous efficiency and a lifespan thereof are improved.
    Type: Application
    Filed: December 23, 2022
    Publication date: June 29, 2023
    Applicants: LG DISPLAY CO., LTD., ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.
    Inventors: Kusun CHOUNG, Gyuhyeong KIM, Yoojeong JEONG, Hansol PARK, Kyoung-Jin PARK, Hyun KIM, Jin Ri HONG, Yeon Gun LEE
  • Publication number: 20230203073
    Abstract: Disclosed is a novel organometallic compound which reduces or suppresses triplet polaron quenching (TPQ) and roll-off phenomena to improve light-emitting efficiency and lifespan of an organic light-emitting diode including the compound. Further, the organic light-emitting diode including the compound is disclosed. The organic light-emitting diode including the compound may include a first electrode, a second electrode, and one or more light-emitting stacks between the first electrode and the second electrode.
    Type: Application
    Filed: December 1, 2022
    Publication date: June 29, 2023
    Inventors: Seongsu Jeon, Sangbeom Kim, Kusun Choung
  • Publication number: 20230117909
    Abstract: Disclosed is an organometallic compound represented by a following Chemical Formula 1. The organometallic compound acts as a dopant of a light-emitting layer of an organic light-emitting diode. Thus, operation voltage of the diode is lowered, and luminous efficiency and lifespan thereof are improved: Ir(LA)m(LB)n??[Chemical Formula 1] where in the Chemical Formula 1, LA represents a main ligand, and is one selected from a group consisting of Chemical Formula 2-1, Chemical Formula 2-2, and Chemical Formula 2-3, LB denotes an ancillary ligand represented by a Chemical Formula 3, each of m and n denotes a number of the ligands bound to Ir (iridium), and m is 1, 2 or 3, and n is 0, 1 or 2, and a sum of m and n is 3.
    Type: Application
    Filed: July 26, 2022
    Publication date: April 20, 2023
    Applicants: LG DISPLAY CO., LTD., ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.
    Inventors: Kusun CHOUNG, Hansol PARK, Yoojeong JEONG, Kyoung-Jin PARK, Hyun KIM, Jin Ri HONG, Yeon Gun LEE