Patents by Inventor Jeonghoe Heo

Jeonghoe Heo 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).

  • NOVEL COMPOUND AND ORGANIC LIGHT EMITTING DEVICE COMPRISING THE SAME
    Publication number: 20250143180
    Abstract: A compound of Chemical Formula 1: wherein: Ar1 is a substituted or unsubstituted C6-60 aryl or a substituted or unsubstituted C2-60 heteroaryl containing at least one of N, O, or S as a heteroatom; X is O or S; R1 is hydrogen, deuterium, a substituted or unsubstituted C6-60 aryl, or a substituted or unsubstituted C2-60 heteroaryl containing at least one heteroatom selected from the group consisting of N, O and S; each R2 is independently hydrogen, deuterium, or a substituted or unsubstituted C6-60 aryl; each R3 is independently hydrogen, deuterium, or a substituted or unsubstituted C6-60 aryl; each R4 is independently hydrogen, deuterium, or a substituted or unsubstituted C6-60 aryl; and the other substituents are as defined in the specification, wherein the compound of Chemical Formula 1 is substituted with at least one deuterium; and an organic light emitting device comprising the same.
    Type: Application
    Filed: September 19, 2024
    Publication date: May 1, 2025
    Inventors: Jeonghoe HEO, Min Woo JUNG, Hoon Jun KIM, Miyeon HAN, Joongsuk OH, Hye Min CHO, Hojung LEE, Hyungjin PARK
  • Organic compounds and organic light emitting display device using the same
    Patent number: 12167685
    Abstract: The present disclosure relates to organic compounds and an organic light emitting display device using the same and more particularly, to an organic light emitting display in which an organic compound represented by the following Chemical Formula 1 is used for a hole transport layer or an electron blocking layer of the organic light emitting element to easily transport holes injected from an anode to a light emitting layer and suppress the leakage of electrons from the light emitting layer. Therefore, it is possible to provide an organic light emitting display device with high luminous efficiency and long lifetime.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: December 10, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: InBum Song, SangBeom Kim, Sunghoon Kim, Sang-hoon Hong, Seong-min Park, TaeWan Lee, SunJae Kim, DongHun Lee, Jeonghoe Heo
  • Organic light emitting device
    Patent number: 11895911
    Abstract: The present disclosure provides an organic light-emitting device comprising a novel compound. When the novel compound is applied as a hole transport material to an organic light emitting device, the novel compound allows the device to have improved drive voltage, efficiency and lifespan characteristics.
    Type: Grant
    Filed: October 31, 2022
    Date of Patent: February 6, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Heejun Park, Seonkeun Yoo, Soyoung Jang, Jicheol Shin, Sangbeom Kim, Sunghoon Kim, Tae Wan Lee, Dong Hun Lee, Jeonghoe Heo
  • Compound and organic light emitting device including the same
    Patent number: 11844270
    Abstract: Disclosed is a novel compound and an organic light-emitting device. The novel compound is represented by the following Chemical Formula 1, and when the novel compound is used as a material for a hole transport layer of an organic light emitting device, the novel compound allows the device to have lowered drive voltage, and improved efficiency and lifespan characteristics.
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: December 12, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Heejun Park, Jeongdae Seo, Seonkeun Yoo, Soyoung Jang, Sunghoon Kim, Sang-Hoon Hong, Seong-Min Park, Tae Wan Lee, Sunjae Kim, Dong Hun Lee, Jeonghoe Heo, Gwangyong Kim
  • Organic compound and organic electroluminescent device comprising the same
    Patent number: 11744145
    Abstract: Disclosed is an organic electroluminescent device with lowered driving voltage, and enhanced efficiency and lifetime.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: August 29, 2023
    Assignees: LG DISPLAY CO., LTD., MATERIAL SCIENCE CO., LTD.
    Inventors: Inbum Song, Seunghee Yoon, Heejun Park, Seonkeun Yoo, Soyoung Jang, Sunghoon Kim, Seong-Min Park, Tae Wan Lee, Sunjae Kim, Dong Hun Lee, Jeonghoe Heo
  • ORGANIC LIGHT EMITTING DEVICE
    Publication number: 20230172060
    Abstract: The present disclosure provides an organic light-emitting device comprising a novel compound. When the novel compound is applied as a hole transport material to an organic light emitting device, the novel compound allows the device to have improved drive voltage, efficiency and lifespan characteristics.
    Type: Application
    Filed: October 31, 2022
    Publication date: June 1, 2023
    Inventors: Heejun Park, Seonkeun Yoo, Soyoung Jang, Jicheol Shin, Sangbeom Kim, Sunghoon Kim, Tae Wan Lee, Dong Hun Lee, Jeonghoe Heo
  • Compound and organic electroluminescent device comprising the same
    Patent number: 11545630
    Abstract: Organic electroluminescent devices with lowered driving voltages, and enhanced efficiencies and lifetimes are provided.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: January 3, 2023
    Assignees: LG Display Co., Ltd., MATERIAL SCIENCE CO., LTD.
    Inventors: Inbum Song, Seunghee Yoon, Sunghoon Kim, Tae Wan Lee, Dong Hun Lee, Jeonghoe Heo, Seong-Min Park, Sunjae Kim
  • Organic light emitting device
    Patent number: 11515480
    Abstract: The present disclosure provides an organic light-emitting device comprising a novel compound. When the novel compound is applied as a hole transport material to an organic light emitting device, the novel compound allows the device to have improved drive voltage, efficiency and lifespan characteristics.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: November 29, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Heejun Park, Seonkeun Yoo, Soyoung Jang, Jicheol Shin, Sangbeom Kim, Sunghoon Kim, Tae Wan Lee, Dong Hun Lee, Jeonghoe Heo
  • ORGANIC COMPOUNDS AND ORGANIC LIGHT EMITTING DISPLAY DEVICE USING THE SAME
    Publication number: 20210126200
    Abstract: The present disclosure relates to organic compounds and an organic light emitting display device using the same and more particularly, to an organic light emitting display in which an organic compound represented by the following Chemical Formula 1 is used for a hole transport layer or an electron blocking layer of the organic light emitting element to easily transport holes injected from an anode to a light emitting layer and suppress the leakage of electrons from the light emitting layer. Therefore, it is possible to provide an organic light emitting display device with high luminous efficiency and long lifetime.
    Type: Application
    Filed: October 23, 2020
    Publication date: April 29, 2021
    Applicant: LG Display Co., Ltd.
    Inventors: InBum SONG, SangBeom KIM, Sunghoon KIM, Sang-hoon HONG, Seong-min PARK, TaeWan LEE, SunJae KIM, DongHun LEE, Jeonghoe HEO
  • NOVEL COMPOUND AND ORGANIC LIGHT EMITTING DEVICE
    Publication number: 20200335698
    Abstract: Disclosed is a novel compound and an organic light-emitting device. The novel compound is represented by the following Chemical Formula 1, and when the novel compound is used as a material for a hole transport layer of an organic light emitting device, the novel compound allows the device to have lowered drive voltage, and improved efficiency and lifespan characteristics.
    Type: Application
    Filed: April 16, 2020
    Publication date: October 22, 2020
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Heejun PARK, Jeongdae SEO, Seonkeun YOO, Soyoung JANG, Sunghoon KIM, Sang-Hoon HONG, Seong-Min PARK, Tae Wan LEE, Sunjae KIM, Dong Hun LEE, Jeonghoe HEO, Gwangyong KIM
  • ORGANIC LIGHT EMITTING DEVICE
    Publication number: 20200203619
    Abstract: The present disclosure provides an organic light-emitting device comprising a novel compound. When the novel compound is applied as a hole transport material to an organic light emitting device, the novel compound allows the device to have improved drive voltage, efficiency and lifespan characteristics.
    Type: Application
    Filed: December 19, 2019
    Publication date: June 25, 2020
    Inventors: Heejun Park, Seonkeun Yoo, Soyoung Jang, Jicheol Shin, Sangbeom Kim, Sunghoon Kim, Tae Wan Lee, Dong Hun Lee, Jeonghoe Heo
  • NOVEL COMPOUND AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME
    Publication number: 20200144509
    Abstract: Organic electroluminescent devices with lowered driving voltages, and enhanced efficiencies and lifetimes are provided.
    Type: Application
    Filed: November 5, 2019
    Publication date: May 7, 2020
    Inventors: Inbum Song, Seunghee Yoon, Sunghoon Kim, Tae Wan Lee, Dong Hun Lee, Jeonghoe Heo, Seong-Min Park, Sunjae Kim
  • ORGANIC COMPOUND AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME
    Publication number: 20200144506
    Abstract: Disclosed is an organic electroluminescent device with lowered driving voltage, and enhanced efficiency and lifetime.
    Type: Application
    Filed: November 5, 2019
    Publication date: May 7, 2020
    Inventors: Inbum Song, Seunghee Yoon, Heejun Park, Seonkeun Yoo, Soyoung Jang, Sunghoon Kim, Seong-Min Park, Tae Wan Lee, Sunjae Kim, Dong Hun Lee, Jeonghoe Heo