Patents by Inventor Seon-Keun Yoo

Seon-Keun Yoo 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: 20240099130
    Abstract: The present invention provides an organic compound represented by: an organic light emitting diode and an organic light emitting display device using the organic compound. The organic compound of the present invention is capable of reducing a driving voltage of an organic light emitting diode and improving an emitting efficiency and a lifetime of the organic light emitting diode and the organic light emitting display device including the organic compound.
    Type: Application
    Filed: November 15, 2023
    Publication date: March 21, 2024
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Seung-Hee YOON, Sung-Hoon JOO, Seon-Keun YOO, Ji-Cheol SHIN
  • Patent number: 11889754
    Abstract: The present disclosure provides an organic compound of the following formula and an organic light emitting diode and an OLED device including the same.
    Type: Grant
    Filed: August 4, 2020
    Date of Patent: January 30, 2024
    Assignees: LG DISPLAY CO., LTD, P & HTECH
    Inventors: Ji-Cheol Shin, Seon-Keun Yoo, Jeong-Dae Seo, Sang-Beom Kim, Hee-Jun Park, Seo-Yong Hyun, Seok-Keun Yoon
  • Patent number: 11856846
    Abstract: An example of the present invention provides an organic compound represented by: an organic light emitting diode and an organic light emitting display device using the organic compound. The organic compound of the present invention is capable of reducing a driving voltage of an organic light emitting diode and improving an emitting efficiency and a lifetime of the organic light emitting diode and the organic light emitting display device including the organic compound.
    Type: Grant
    Filed: June 23, 2021
    Date of Patent: December 26, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Seung-Hee Yoon, Sung-Hoon Joo, Seon-Keun Yoo, Ji-Cheol Shin
  • Publication number: 20230276705
    Abstract: Embodiments of the present invention provide an organic light emitting diode and an organic light emitting display device including the organic compound. The organic compound is capable of reducing a driving voltage of an organic light emitting diode and improves a current efficiency and a lifetime of the organic light emitting diode and the organic light emitting display device including the same.
    Type: Application
    Filed: May 9, 2023
    Publication date: August 31, 2023
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Seon-Keun YOO, Sung-Hoon JOO, Seung-Hee YOON, Ji-Cheol SHIN
  • 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: 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: 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
  • Patent number: 11690291
    Abstract: Embodiments of the present invention provide an organic light emitting diode and an organic light emitting display device including the organic compound. The organic compound is capable of reducing a driving voltage of an organic light emitting diode and improves a current efficiency and a lifetime of the organic light emitting diode and the organic light emitting display device including the same.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: June 27, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Seon-Keun Yoo, Sung-Hoon Joo, Seung-Hee Yoon, Ji-Cheol Shin
  • Publication number: 20230107166
    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: Application
    Filed: April 14, 2022
    Publication date: April 6, 2023
    Applicants: 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
  • Publication number: 20220416176
    Abstract: The present disclosure relates to an organic compound of Formula, and an organic light emitting diode and an organic light emitting display device including the organic compound. In Formula, X is oxygen (O) or sulfur (S), and each of R1 to R4 is independently selected from the group consisting of deuterium, halogen, cyano, C1 to C10 alkyl group, C1 to C10 alkoxy group, C3 to C30 cycloalkyl group, C6 to C30 aryl group, C6 to C30 arylamino group, and C5 to C30 heteroaryl group, wherein each of L1 and L2 is independently selected from the group consisting of C6 to C30 arylene group and C5 to C30 heteroarylene group, and wherein each of a and b is independently 0 or 1, each of c and f is independently an integer of 0 to 3, and each of d and e is independently an integer of 0 to 2.
    Type: Application
    Filed: August 2, 2021
    Publication date: December 29, 2022
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Dae Wi YOON, Seon Keun YOO, Seong Su JEON
  • Patent number: 11524947
    Abstract: An organic compound having a tetraphenyl moiety and at least one fused hetero aryl moiety having at least one oxygen and/or sulfur on a ring and bonded to the tetraphenyl moiety directly or indirectly, and a light emitting diode and a light emitting device having the organic compound are disclosed. The organic compound has excellent thermal resistance property and hole mobility property. The organic compound can be incorporated into a hole transfer layer, an electron blocking layer and/or a charge generation layer of the light emitting diode. Therefore, the light emitting diode and light emitting device according to the present invention have decreased driving voltage and enhanced luminous efficiency.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: December 13, 2022
    Assignee: LG DISPLAY CO., LTD.
    Inventors: So-Young Jang, Hee-Jun Park, Jeong-Dae Seo, Seon-Keun Yoo, Ji-Cheol Shin, Sang-Beom Kim
  • Patent number: 11469378
    Abstract: The present invention provides an electroluminescent compound of one of following formulas Formula 1 and Formula 2. Another aspect of the invention is an electroluminescent device including a first electrode; a second electrode facing the first electrode; and at least one organic material layer between the first and second electrodes, wherein one or more of the at least one organic material layer includes the electroluminescent compound.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: October 11, 2022
    Assignees: LG DISPLAY CO., LTD., PNH TECH
    Inventors: Seon-Keun Yoo, Hee-Jun Park, Jeong-Dae Seo, Seo-Yong Hyun, Ha-Yeon Kim, Seok-Keun Yoon, Sun-Gi Kim, In-Ho Lee
  • Publication number: 20220231236
    Abstract: The present disclosure relates to an organic compound having the following structure of Formula 1, an organic light emitting diode (OLED) where an electron transport layer and/or a charge generation layer includes the organic compound and an organic light emitting device including the organic light emitting diode. While only the specific moiety in the organic compound is deuterated, the organic compound can implement excellent luminous efficiency and luminous lifespan as a compound where all the carbon atoms are deuterated. The OLED can maximize its luminous efficiency and luminous lifespan with minimizing utilization of expensive deuterium.
    Type: Application
    Filed: June 15, 2021
    Publication date: July 21, 2022
    Inventors: Dae Wi YOON, Seon Keun YOO, Shin Han KIM, Min Gi HONG, Seong Su JEON, Ji Cheol SHIN
  • Publication number: 20220216417
    Abstract: The present disclosure relates to an organic light emitting diode comprising a first electrode; a second electrode facing the first electrode; a first emitting part including a first emitting material layer and a hole injection layer and positioned between the first and second electrodes, wherein the hole injection layer includes a first hole injection material and a second hole injection material and is positioned between the first electrode and the first emitting material layer, and wherein the first hole injection material is an indacene derivative, and the second hole injection material includes at least one of fluorene derivatives having different structures.
    Type: Application
    Filed: December 17, 2021
    Publication date: July 7, 2022
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Ji-Cheol SHIN, Jeong-Dae SEO, Shin-Han Kim, Seon-Keun YOO
  • Publication number: 20220209126
    Abstract: The present disclosure relates to an organic light emitting diode including a first electrode; a second electrode facing the first electrode; a first p-type doping layer between the first and second electrodes; a second p-type doping layer between the first p-type doping layer and the second electrode; a third p-type doping layer between the second p-type doping layer and the second electrode; a first emitting material layer between the first and second p-type doping layers; a second emitting material layer between the second and third p-type doping layers; and a third emitting material layer between the third p-type doping layer and the second electrode, wherein an electrical conductivity of the third p-type doping layer is greater than an electrical conductivity of the first p-type doping layer and is equal to or smaller than an electrical conductivity of the second p-type doping layer.
    Type: Application
    Filed: December 15, 2021
    Publication date: June 30, 2022
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Ji-Cheol SHIN, Seong-Su JEON, Shin-Han KIM, Seon-Keun YOO
  • Publication number: 20220173328
    Abstract: The present disclosure relates to an organic compound, and an organic light emitting diode and an organic light emitting device including the same, more specifically, relates to an organic compound being represented by following Formula, an organic light emitting diode including the organic compound and an organic light emitting device including the organic light emitting diode. The organic compound is included in an electron transporting layer and/or a p-type charge generation layer of the organic light emitting diode.
    Type: Application
    Filed: August 20, 2021
    Publication date: June 2, 2022
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Seon-Keun YOO, Dae-Wi YOON, Shin-Han KIM, Min-Gi HONG, Seong-Su JEON, Ji-Cheol SHIN
  • Publication number: 20210408395
    Abstract: The present disclosure relates to an organic compound including a substituted or non-substituted phenanthroline moiety and a substituted or non-substituted anthracene moiety and being partially deuterated and an organic light emitting diode includes the organic compound. The organic compound has improved electron transporting property and/or the charge generation property. According, the emitting efficiency and the lifespan of the OLED and the organic light emitting display device including the organic compound in the ETL and/or the CGL are improved.
    Type: Application
    Filed: August 31, 2020
    Publication date: December 30, 2021
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Seon Keun YOO, Ji Cheol SHIN, Jeong Dae SEO
  • Patent number: 11155543
    Abstract: An embodiment of the present invention provides an organic compound represented by: and an organic light emitting diode and an organic light emitting display device using the organic compound. The organic compound of the present invention includes a phenanthroline core, which has a nitrogen atom of a relatively electron rich sp2 hybrid orbital, and a phosphine oxide moiety, which has an excellent electron transporting property and an excellent thermal stability. The electron transporting property of the organic compound of the present invention is improved based on the chemical structure of the organic compound. Accordingly, when the organic compound is used for the organic light emitting diode and the organic light emitting display device, the driving voltage is reduced, and the lifetime and the emitting efficiency are improved.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: October 26, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Sung-Hoon Joo, Seon-Keun Yoo, Seung-Hee Yoon, Ji-Cheol Shin
  • Publication number: 20210320261
    Abstract: An example of the present invention provides an organic compound represented by: an organic light emitting diode and an organic light emitting display device using the organic compound. The organic compound of the present invention is capable of reducing a driving voltage of an organic light emitting diode and improving an emitting efficiency and a lifetime of the organic light emitting diode and the organic light emitting display device including the organic compound.
    Type: Application
    Filed: June 23, 2021
    Publication date: October 14, 2021
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Seung-Hee YOON, Sung-Hoon JOO, Seon-Keun YOO, Ji-Cheol SHIN
  • Patent number: 11081648
    Abstract: The present invention provides an organic compound represented by: an organic light emitting diode and an organic light emitting display device using the organic compound. The organic compound of the present invention is capable of reducing a driving voltage of an organic light emitting diode and improving an emitting efficiency and a lifetime of the organic light emitting diode and the organic light emitting display device including the organic compound.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: August 3, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Seung-Hee Yoon, Sung-Hoon Joo, Seon-Keun Yoo, Ji-Cheol Shin