Patents by Inventor Sohee JO

Sohee JO 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: 12648351
    Abstract: Provided is a light emitting element including a first electrode, a second electrode on the first electrode, and at least one functional layer between the first electrode and the second electrode. The at least one functional layer may include an amine compound represented by Formula 1 below.
    Type: Grant
    Filed: July 7, 2022
    Date of Patent: June 2, 2026
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dongjun Kim, Chaeyeong Kim, Hankyu Pak, Byeongwook Yoo, Seowon Cho, Sohee Jo
  • Patent number: 12635332
    Abstract: An organic electroluminescence device (OLED) of an embodiment includes a first electrode, a hole transport region on the first electrode, an emission layer on the hole transport region, and an electron transport region on the emission layer.
    Type: Grant
    Filed: June 3, 2024
    Date of Patent: May 19, 2026
    Assignee: Samsung Display Co., Ltd.
    Inventors: Eunjae Jeong, Dongjun Kim, Minji Kim, Sohee Jo, Sanghyun Han
  • Publication number: 20260049050
    Abstract: A light-emitting element includes a first electrode, a second electrode, and at least one functional layer disposed between the first electrode and the second electrode and including an amine compound represented by Formula 1.
    Type: Application
    Filed: October 28, 2025
    Publication date: February 19, 2026
    Inventors: SANGHYUN HAN, DONGJUN KIM, MINJI KIM, HANKYU PAK, EUNJAE JEONG, SOHEE JO, ILSOO OH, ILLHUN CHO
  • Publication number: 20260033237
    Abstract: Provided are an amine compound represented by Formula 1 and a light-emitting device including the amine compound. The light emitting device includes: a first electrode; a second electrode facing the first electrode; and an interlayer between the first electrode and the second electrode and including an emission layer, wherein the light-emitting device includes an amine compound represented by Formula 1.
    Type: Application
    Filed: October 6, 2025
    Publication date: January 29, 2026
    Inventors: Minji Kim, Sanghyun Han, Dongjun Kim, Hankyu Pak, Eunjae Jeong, Sohee Jo
  • Patent number: 12497348
    Abstract: A light-emitting element includes a first electrode, a second electrode, and at least one functional layer disposed between the first electrode and the second electrode and including an amine compound represented by Formula 1.
    Type: Grant
    Filed: January 28, 2022
    Date of Patent: December 16, 2025
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sanghyun Han, Dongjun Kim, Minji Kim, Hankyu Pak, Eunjae Jeong, Sohee Jo, Ilsoo Oh, Illhun Cho
  • Patent number: 12490647
    Abstract: Provided are an amine compound represented by Formula 1 and a light-emitting device including the amine compound. The light emitting device includes: a first electrode; a second electrode facing the first electrode; and an interlayer between the first electrode and the second electrode and including an emission layer, wherein the light-emitting device includes an amine compound represented by Formula 1.
    Type: Grant
    Filed: April 6, 2021
    Date of Patent: December 2, 2025
    Assignee: Samsung Display Co., Ltd.
    Inventors: Minji Kim, Sanghyun Han, Dongjun Kim, Hankyu Pak, Eunjae Jeong, Sohee Jo
  • Patent number: 12441699
    Abstract: An organic electroluminescence device of an embodiment of the present disclosure includes a first electrode, a second electrode facing the first electrode, and a plurality of organic layers disposed between the first electrode and the second electrode, wherein at least one organic layer of the plurality of organic layers includes an amine compound containing a fluorene group; an aryl group having 6 to 60 ring-forming carbon atoms, which is substituted to the fluorene group; a heteroaryl group having 2 to 60 ring-forming carbon atoms, which is substituted to the fluorene group; and at least one amine group, which is substituted to the fluorene group; wherein all the carbons of the aryl group are substituted with deuterium, and the organic electroluminescence device exhibits high efficiency and a long service life.
    Type: Grant
    Filed: October 27, 2023
    Date of Patent: October 14, 2025
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dongjun Kim, Minji Kim, Eunjae Jeong, Sohee Jo, Sanghyun Han
  • Patent number: 12439820
    Abstract: An organic electroluminescence device includes a first electrode and a second electrode facing each other, and a plurality of organic layers between the first electrode and the second electrode, wherein at least one of the organic layers includes an amine compound represented by Formula 1 below. The organic electroluminescence device may have improved luminous efficiency.
    Type: Grant
    Filed: August 19, 2020
    Date of Patent: October 7, 2025
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sohee Jo, Dongjun Kim, Minji Kim, Eunjae Jeong, Sanghyun Han
  • Publication number: 20250301901
    Abstract: Embodiments provide an amine compound, a light emitting element that includes the amine compound, and a display device that includes the light emitting element. The light emitting element includes a first electrode, a hole transport region disposed on the first electrode, an emission layer disposed on the hole transport region, an electron transport region disposed on the emission layer, and a second electrode disposed on the electron transport region, wherein the hole transport region includes the amine compound. The amine compound is represented by Formula 1, which is explained in the specification.
    Type: Application
    Filed: January 7, 2025
    Publication date: September 25, 2025
    Applicant: Samsung Display Co., Ltd.
    Inventors: EUNJAE JEONG, BYEONGWOOK YOO, Jeong Min LEE, SOHEE JO
  • Patent number: 12426500
    Abstract: Provided is a light emitting element including a first electrode, a second electrode, and at least one functional layer between the first electrode and the second electrode, and the at least one functional layer may include an amine compound represented by Formula 1 below, thereby exhibiting high luminous efficiency and improved service life characteristics.
    Type: Grant
    Filed: June 29, 2021
    Date of Patent: September 23, 2025
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dongjun Kim, Hankyu Pak, Eunjae Jeong, Sanghyun Han, Minji Kim, Sohee Jo
  • Publication number: 20250275470
    Abstract: Provided is a light-emitting element including a first electrode, a second electrode facing the first electrode, and at least one functional layer disposed between the first electrode and the second electrode and including an amine compound represented by Formula 1. The light-emitting element may exhibit excellent light-emitting efficiency and improved service life characteristics.
    Type: Application
    Filed: May 13, 2025
    Publication date: August 28, 2025
    Inventors: Sanghyun HAN, Dongjun KIM, MINJI KIM, Hankyu PAK, Eunjae JEONG, Sohee JO
  • Publication number: 20250257073
    Abstract: A light-emitting device includes a heterocyclic compound represented by Formula 1: The heterocyclic compound represented by Formula 1 may have a high glass transition temperature (Tg) and/or melting point for excellent thermal resistance, and excellent hole injectability and/or transportability. Accordingly, the light-emitting device may have excellent luminance, luminescence efficiency, lifespan, and/or driving voltage.
    Type: Application
    Filed: April 1, 2025
    Publication date: August 14, 2025
    Inventors: Sohee JO, Dongjun KIM, Minji KIM, Eunjae JEONG, Sanghyun HAN
  • Publication number: 20250255177
    Abstract: A light-emitting device including a first electrode, a second electrode opposite to (e.g., facing) the first electrode, and an interlayer between the first electrode and the second electrode is provided. The interlayer includes an emission layer, and an organic compound represented by Formula 1.
    Type: Application
    Filed: January 9, 2025
    Publication date: August 7, 2025
    Inventors: Sohee Jo, Hankyu Pak, Hyunbin Park, Byeongwook Yoo, Jinyoung Yun, Bora Lee, Eunjae Jeong, Hanna Cha
  • Publication number: 20250234702
    Abstract: A display apparatus includes a substrate, a pixel electrode above the substrate, an opposite electrode above the pixel electrode, and having a thickness between about 150 ? and about 350 ?, an emission layer between the pixel electrode and the opposite electrode, a first functional layer between the pixel electrode and the emission layer, and a second functional layer between the emission layer and the opposite electrode, and having a thickness between about 100 ? and about 400 ?.
    Type: Application
    Filed: September 27, 2024
    Publication date: July 17, 2025
    Inventors: Bora Lee, Hyunbin Park, Byeongwook Yoo, Jinyoung Yun, Sohee Jo, Illhun Cho
  • Publication number: 20250223283
    Abstract: A compound according to an embodiment of the present disclosure is represented by Formula 1: When the compound is used in an organic light-emitting device, efficiency is higher as compared to when existing compounds in the art are used. In particular, the compound shows a remarkable effect of lifespan improvement, resulting in a significantly increased lifespan of the organic light-emitting device including the compound.
    Type: Application
    Filed: March 26, 2025
    Publication date: July 10, 2025
    Inventors: Sohee Jo, Dongjun Kim, Minji Kim, Eunjae Jeong, Sanghyun Han
  • Patent number: 12356795
    Abstract: A light emitting diode of an embodiment includes a first electrode, a hole transport region disposed on the first electrode, an emission layer disposed on the hole transport region, an electron transport region disposed on the emission layer, and a second electrode disposed on the electron transport region. The hole transport region includes a first hole transport layer disposed adjacent to the first electrode and having a first refractive index, a second hole transport layer disposed adjacent to the emission layer and having a second refractive index, and a third hole transport layer disposed between the first hole transport layer and the second hole transport layer and having a third refractive index which is greater than each of the first refractive index and the second refractive index, thereby showing high light extraction efficiency and high emission efficiency properties.
    Type: Grant
    Filed: July 6, 2023
    Date of Patent: July 8, 2025
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Bora Lee, Hyomin Ko, Illhun Cho, Eunjae Jeong, Minji Kim, Sohee Jo, Dongjun Kim, Hankyu Pak, Sanghyun Han
  • Publication number: 20250215311
    Abstract: Provided are an arylamine compound including a phenyl-naphthyl linker substituted with at least one deuterium and an amine group substituted with at least one carbazole group, a light-emitting device including the arylamine compound, and an electronic apparatus including the light-emitting device. The arylamine compound is the same as described in the present specification.
    Type: Application
    Filed: February 10, 2025
    Publication date: July 3, 2025
    Inventors: Dongjun Kim, Hankyu Pak, Minji Kim, Eunjae Jeong, Sohee Jo, Sanghyun Han
  • Publication number: 20250194419
    Abstract: An organic electroluminescence device includes a first electrode and a second electrode, and a plurality of organic layers disposed between the first electrode and the second electrode, wherein at least one organic layer among the plurality of organic layers includes an amine compound represented by Formula 1, and thereby exhibits improved emission efficiency.
    Type: Application
    Filed: February 14, 2025
    Publication date: June 12, 2025
    Inventors: EUNJAE JEONG, DONGJUN KIM, MINJI KIM, HANKYU PAK, SOHEE JO, SANGHYUN HAN
  • Patent number: 12329027
    Abstract: Provided is a light-emitting element including a first electrode, a second electrode facing the first electrode, and at least one functional layer disposed between the first electrode and the second electrode and including an amine compound represented by Formula 1. The light-emitting element may exhibit excellent light-emitting efficiency and improved service life characteristics.
    Type: Grant
    Filed: November 30, 2021
    Date of Patent: June 10, 2025
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sanghyun Han, Dongjun Kim, Minji Kim, Hankyu Pak, Eunjae Jeong, Sohee Jo
  • Publication number: 20250185500
    Abstract: Embodiments provide a light-emitting device, an electronic apparatus including the light-emitting device, and electronic equipment including the light-emitting device.
    Type: Application
    Filed: November 5, 2024
    Publication date: June 5, 2025
    Applicant: Samsung Display Co., Ltd.
    Inventors: Jinyoung Yun, Hyunbin Park, Heechoon Ahn, Hyunah Um, Byeongwook Yoo, Bora Lee, Sohee Jo, Hanna Cha