Patents by Inventor Young-Jun Yu

Young-Jun Yu 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: 12637449
    Abstract: An organic compound and an organic light emitting device including the same are disclosed. For example, an organic compound is represented by the following chemical formula in which one of X1 and X2 is N, and the other one of X1 and X2 is O or S. The organic light emitting diode and the organic light emitting device each includes the organic compound.
    Type: Grant
    Filed: October 18, 2022
    Date of Patent: May 26, 2026
    Assignee: LG Display Co., Ltd.
    Inventors: Seon-Keun Yoo, Young-Jun Yu, Sang-Beom Kim
  • Patent number: 12595257
    Abstract: The present disclosure relates to a heterocyclic compound being represented by Formula, an organic light emitting device including the heterocyclic compound and an organic light emitting display device including the organic light emitting device. The organic heterocyclic is included in an organic material layer of the organic light emitting device.
    Type: Grant
    Filed: April 14, 2022
    Date of Patent: April 7, 2026
    Assignees: LG DISPLAY CO., LTD., LT MATERIALS CO., LTD.
    Inventors: Sang-Beom Kim, Young-Jun Yu, Seon-Keun Yoo, Seung-Kwang Roh, Woo-Chul Choi, Ji-Ho Baek, Kyung-Hoon Lee, Ki-Min Lim, Dong-Jun Kim, Young-Seok No, Hyun-Joo Lee, Eui-Jeong Choi
  • Patent number: 12584065
    Abstract: An organic light emitting diode and an organic light emitting device including the same are described. The organic light emitting diode can include a first electrode, a second electrode facing the first electrode, and a first emitting part including a red emitting material layer and a first hole transporting layer and positioned between the first and second electrodes. The red emitting material layer can include a first red host and a red dopant, and the first hole transporting layer can include a hole transporting material and is positioned between the first electrode and the red emitting material layer.
    Type: Grant
    Filed: November 9, 2021
    Date of Patent: March 24, 2026
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Young-Jun Yu, Sang-Beom Kim, Jung-Keun Kim, Jeong-Dae Seo, Sung-Hoon Kim, Kwang-Seok Do, Dong-Hun Lee, Won-Bin Kim
  • Publication number: 20260049090
    Abstract: An organic light emitting diode and an organic light emitting device including the same are discussed. The organic light emitting diode can include a first electrode, a second electrode facing the first electrode, and a first emitting part including a green emitting material layer and positioned between the first and second electrodes. The green emitting material layer can include a first host, a second host and a dopant, wherein at least one of the first host and the second host is deuterated.
    Type: Application
    Filed: June 25, 2025
    Publication date: February 19, 2026
    Applicants: LG DISPLAY CO., LTD., DUPONT SPECIALTY MATERIALS KOREA LTD.
    Inventors: Young-Jun YU, Sang-Beom KIM, Do-Han KIM, Jeong-Dae SEO, Chi-Sik KIM, Kyoung-Jin PARK, Soo-Yong LEE, Seung-Hoon YOO
  • Publication number: 20260007082
    Abstract: Proposed is a high-performance photoactive neuromorphic synaptic device using a two-dimensional ferroelectric semiconductor with an asymmetric energy band structure, the synaptic device including a gate electrode layer, a buffer insulating layer arranged on the gate electrode layer, a channel layer arranged on the buffer insulating layer, a source electrode of a conductor arranged on the channel layer, and a drain electrode of a conductor arranged on the channel layer, and spaced apart from the source electrode, wherein the channel layer is made of the two-dimensional ferroelectric semiconductor, the buffer insulating layer is made of an insulating material having a lower dielectric constant than that of the channel layer, the gate electrode layer is configured to control an electric field of the channel layer by an applied electrical bias, and the photoactive neuromorphic synaptic device increases a Fermi level as increased electron-hole pairs.
    Type: Application
    Filed: February 20, 2025
    Publication date: January 1, 2026
    Applicant: THE INDUSTRY & ACADEMIC COOPERATION IN CHUNGNAM NATIONAL UNIVERSITY (IAC)
    Inventors: Young-Jun YU, Seok-Ju KANG, Oh Hun GWON, Wonzee JUNG
  • Publication number: 20250359428
    Abstract: An organic light emitting diode and an organic light emitting device containing the same are provided. The organic light emitting diode includes at least two emitting parts each of which includes independently an emitting material layer. Each of the emitting material layers includes independently an anthracene-based host having different deuterium substitution rates. The organic light emitting device includes the organic light emitting diode. Hosts with different deuterium substitution rates are introduced into each organic emitting material layer to improve luminous efficiency and luminous lifespan of the organic light emitting diode and the organic light emitting device.
    Type: Application
    Filed: July 25, 2025
    Publication date: November 20, 2025
    Applicant: LG Display Co., Ltd.
    Inventors: Young-Jun YU, Sang-Beom KIM, Hyun-Chul CHOI, Ji-Ho BAEK, In-Bum SONG, Jeong-Dae SEO, Sun-Kap KWON
  • Patent number: 12398318
    Abstract: An organic light emitting diode and an organic light emitting device containing the same are provided. The organic light emitting diode includes at least two emitting parts each of which includes independently an emitting material layer. Each of the emitting material layers includes independently an anthracene-based host having different deuterium substitution rates. The organic light emitting device includes the organic light emitting diode. Hosts with different deuterium substitution rates are introduced into each organic emitting material layer to improve luminous efficiency and luminous lifespan of the organic light emitting diode and the organic light emitting device.
    Type: Grant
    Filed: December 1, 2021
    Date of Patent: August 26, 2025
    Assignee: LG Display Co., Ltd.
    Inventors: Young-Jun Yu, Sang-Beom Kim, Hyun-Chul Choi, Ji-Ho Baek, In-Bum Song, Jeong-Dae Seo, Sun-Kap Kwon
  • Patent number: 12391700
    Abstract: An organic light emitting diode and an organic light emitting device including the same are discussed. The organic light emitting diode can include a first electrode, a second electrode facing the first electrode, and a first emitting part including a green emitting material layer and positioned between the first and second electrodes. The green emitting material layer can include a first host, a second host and a dopant, wherein at least one of the first host and the second host is deuterated.
    Type: Grant
    Filed: November 30, 2021
    Date of Patent: August 19, 2025
    Assignees: LG DISPLAY CO., LTD., DUPONT SPECIALTY MATERIALS KOREA LTD.
    Inventors: Young-Jun Yu, Sang-Beom Kim, Do-Han Kim, Jeong-Dae Seo, Chi-Sik Kim, Kyoung-Jin Park, Soo-Yong Lee, Seung-Hoon Yoo
  • Publication number: 20250178987
    Abstract: The present disclosure relates to an organic compound, an organic light emitting diode (OLED) and an organic light emitting device having thereof. In particular, an organic compound having the following structure of Chemical Formula 1 is provided. Luminous lifespan of an organic light emitting diode (OLED) and an organic light emitting device containing the OLED (e.g., a display device or a lighting device) can be improved by applying the organic compound in an emissive layer in the OLED.
    Type: Application
    Filed: December 4, 2024
    Publication date: June 5, 2025
    Inventors: Ji-Cheol SHIN, Young-Jun YU, Sang-Beom KIM, Yoo-Jin DOH, Chi-Sik KIM, Young-Kwang KIM, Hae-Yeon KIM
  • Publication number: 20250169358
    Abstract: An organic compound, and an organic light emitting diode and an organic light emitting device including the same are disclosed. For example, an organic compound is represented by the following chemical formula. The organic light emitting diode and the organic light emitting device each includes the organic compound.
    Type: Application
    Filed: October 18, 2024
    Publication date: May 22, 2025
    Inventors: Yeong-Su Lim, Young-Jun Yu, Seon-Keun Yoo, Sang-Beom Kim, Woo-Sam Kim, Hyung-Keun Jang, Dae-Hyuk Choi, Dong-Jun Kim, Young-Seok No, Hyun-Joo Lee, Geon-Yu Park, Sang-Hun Ahn
  • Publication number: 20240246997
    Abstract: The present disclosure relates to an organic compound and an organic light emitting diode and an organic light emitting device each including the same, and more specifically, relates to an emitting compound of following and an organic light emitting diode and an organic light emitting device each including the organometallic compound.
    Type: Application
    Filed: October 16, 2023
    Publication date: July 25, 2024
    Inventors: Seon-Keun YOO, Young-Jun Yu, Seong-Su Jeon, Sang-Beom Kim, Gi-Baek Lee, Dae-Hyuk Choi, Dong-Jun Kim, Jun-Tae Mo
  • Publication number: 20240246996
    Abstract: The present disclosure relates to an organic compound and an organic light emitting diode and an organic light emitting device each including the same, and more specifically, relates to an emitting compound of following and an organic light emitting diode and an organic light emitting device each including the organometallic compound.
    Type: Application
    Filed: October 3, 2023
    Publication date: July 25, 2024
    Inventors: Seon-Keun YOO, Young-Jun YU, Seong-Su JEON, Sang-Beom KIM, Gi-Baek LEE, Dae-Hyuk CHOI, Dong-Jun KIM, Jun-Tae MO
  • Publication number: 20240246953
    Abstract: The present disclosure relates to an organic compound including at least one fused hetero aromatic moiety with at least one nitrogen atom linked to a triazine moiety directly or through a linking group and a benzothiazole moiety linked to the triazine moiety, and substituted with at least one of deuterium and a deuterium-substituted group, an organic light emitting diode and an organic light emitting device having the organic compound. The organic light emitting diode and the organic light emitting device where an emissive layer includes the organic compound have beneficial luminous efficiency and luminous lifespan.
    Type: Application
    Filed: October 3, 2023
    Publication date: July 25, 2024
    Applicants: LG DISPLAY CO., LTD., LT Materials Co.,Ltd
    Inventors: Sang-Beom KIM, Seon-Keun YOO, Young-Jun YU, Woo-Sam KIM, Hyung-Keun JANG, Dae-Hyuk CHOI, Dong-Jun KIM, Young-Seok NO, Hyun-Joo LEE, Geon-Yu PARK, Sang-Hun AHN
  • Publication number: 20240244971
    Abstract: The present disclosure relates to an organic light emitting diode including a first electrode; a second electrode facing the first electrode; and a first emitting part including a first blue emitting layer, a second blue emitting layer, an electron transporting layer and positioned between the first and second electrode, wherein the first blue emitting layer includes a first host and a first dopant, and the second blue emitting layer includes a second host and a second dopant, wherein the first host is an anthracene derivative having a first deuteration ratio, and the second host is an anthracene derivative having a second deuteration ratio smaller than the first deuteration ratio, wherein the first dopant is a first compound represented by Formula 3, and wherein the first electron transporting layer includes an electron transporting material represented by Formula 9.
    Type: Application
    Filed: September 18, 2023
    Publication date: July 18, 2024
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Sang-Beom KIM, Young-Jun YU, Seon-Keun YOO, Dae-Wi YOON, Su-Na CHOI, Seong-Su JEON, Ji-Yun KIM, Yong-Hwan KIM, Jin-Hwan PARK
  • Publication number: 20240244970
    Abstract: The present invention relates to an organic light emitting diode including first and second electrodes facing each other; and a first emitting part including a first blue emitting layer, a second blue emitting layer, an electron transporting layer and positioned between the first and second electrode, wherein the first blue emitting layer includes a first host and a first dopant, and the second blue emitting layer includes a second host and a second dopant, wherein the first host is an anthracene derivative having a first deuteration ratio, and the second host is an anthracene derivative having a second deuteration ratio smaller than the first deuteration ratio, wherein the first dopant is a first compound represented by Formula 3, and wherein the first electron transporting layer includes at least one of a first electron transporting material represented by Formula 9 and a second electron transporting material represented by Formula 10.
    Type: Application
    Filed: September 18, 2023
    Publication date: July 18, 2024
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Sang-Beom KIM, Young-Jun YU, Seon-Keun YOO, Dae-Wi YOON, Su-Na CHOI, Seong-Su JEON, Ji-Yun KIM, Yong-Hwan KIM, Jin-Hwan PARK
  • Publication number: 20240237530
    Abstract: An organic light emitting diode including a first electrode; a second electrode facing the first electrode; and a first emitting part including a first blue emitting layer and a second blue emitting layer and positioned between the first and second electrode, the second blue emitting layer positioned between the first blue emitting layer and the second electrode and contacting the first blue emitting layer, wherein the first blue emitting layer includes a first host and a first dopant, and the second blue emitting layer includes a second host and a second dopant, wherein the first host is an anthracene derivative having a first deuteration ratio, and the second host is an anthracene derivative having a second deuteration ratio smaller than the first deuteration ratio, wherein the first dopant is a first compound represented by Formula 3, and the second dopant is a second compound represented by Formula 7.
    Type: Application
    Filed: September 18, 2023
    Publication date: July 11, 2024
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Sang-Beom KIM, Young-Jun YU, Seon-Keun YOO, Dae-Wi YOON, Su-Na CHOI, Seong-Su JEON, Yong-Hwan KIM, Jin-Hwan PARK, Jin-Yun KIM
  • Publication number: 20240237519
    Abstract: The present disclosure relates to an organic compound including at least one fused hetero aromatic moiety with at least one nitrogen atom linked to a triazine moiety directly or through a linking group and a benzothiazole moiety linked to the triazine moiety, an organic light emitting diode and an organic light emitting device having the organic compound. The organic light emitting diode and the organic light emitting device where an emissive layer includes the organic compound have beneficial luminous efficiency and luminous lifespan.
    Type: Application
    Filed: October 18, 2023
    Publication date: July 11, 2024
    Inventors: Seon-Keun YOO, Young-Jun YU, Seong-Su JEON, Sang-Beom KIM, Woo-Sam KIM, Hyung-Keun JANG, Dae-Hyuk CHOI, Dong-Jun KIM, Young-Seok NO, Hyun-Joo LEE, Geon-Yu PARK, Sang-Hun AHN
  • Publication number: 20230217814
    Abstract: An organic compound and an organic light emitting device including the same are disclosed. For example, an organic compound is represented by the following chemical formula in which one of X and Y is N, and the other one of X and Y is O or S. The organic light emitting diode and the organic light emitting device each includes the organic compound.
    Type: Application
    Filed: October 20, 2022
    Publication date: July 6, 2023
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Seon-Keun YOO, Young-Jun YU, Sang-Beom KIM
  • Publication number: 20230217818
    Abstract: An organic compound including a first moiety having a hetero-ring fused acridine moiety and a second moiety having a quinazoline ring linked to the first moiety directly or via a bivalent linking group is disclosed. In the organic compound, at least one hydrogen atom may be substituted with deuterium or a deuterium-substituted group. An organic light emitting diode (OLED) and an organic light emitting device including the organic compound are also disclosed. The driving voltage of the OLED can be lowered and the luminous efficiency and the luminous lifespan of the OLED can be maximized or increased by adding the organic compound into an emissive layer of the OLED.
    Type: Application
    Filed: October 20, 2022
    Publication date: July 6, 2023
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Sang-Beom KIM, Young-Jun YU, Seon-Keun YOO
  • Publication number: 20230212161
    Abstract: An organic compound and an organic light emitting device including the same are disclosed. For example, an organic compound is represented by the following chemical formula in which one of X1 and X2 is N, and the other one of X1 and X2 is O or S. The organic light emitting diode and the organic light emitting device each includes the organic compound.
    Type: Application
    Filed: October 18, 2022
    Publication date: July 6, 2023
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Seon-Keun YOO, Young-Jun YU, Sang-Beom KIM