Patents by Inventor Dae-Wi Yoon

Dae-Wi Yoon 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: 20240090326
    Abstract: The present disclosure relates to an organic compound having the following structure, and an organic light emitting diode (OLED) and an organic light emitting device including the organic compound. The organic compound can be a bipolar compound having a p-type moiety and an n-type moiety and has high energy level and proper energy bandgap for an emissive layer of the OLED. As the organic compound is applied into the emissive layer, the OLED can maximize its luminous properties as holes and electrons are recombined uniformly over the whole area in an emitting material layer (EML).
    Type: Application
    Filed: September 26, 2023
    Publication date: March 14, 2024
    Applicants: LG DISPLAY CO., LTD, KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Kyung-Jin YOON, Dae-Wi YOON, Ji-Ae LEE, Su-Na CHOI, Dong-Hoon CHOI, Min-Ju CHO, JiWon YOON
  • Patent number: 11889757
    Abstract: An organic light emitting diode comprises an emitting material layer implementing a delayed fluorescence and another emitting material layer disposed adjacently to the emitting material layer and implementing fluorescence or phosphorescence and an organic light emitting device including the diode. As exciton generated in the plural emitting material layer drops to a ground state through the luminous materials each of which has a controlled energy level, it is possible to implement excellent luminous efficiency derived from a delayed fluorescent material and improved color purity derived from a fluorescent or phosphorescent material having narrow FWHM.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: January 30, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: Bo-Min Seo, Dae-Wi Yoon, Jun-Yun Kim, Chun-Ki Kim, Mi-Sang Yoo
  • Patent number: 11844275
    Abstract: The present disclosure relates to an organic compound having the following structure, and an organic light emitting diode (OLED) and an organic light emitting device including the organic compound. The organic compound is a bipolar compound having a p-type moiety and an n-type moiety and has high energy level and proper energy bandgap for an emissive layer of the OLED. As the organic compound is applied into the emissive layer, the OLED can maximize its luminous properties as holes and electrons are recombined uniformly over the whole area in an EML.
    Type: Grant
    Filed: October 12, 2020
    Date of Patent: December 12, 2023
    Assignees: LG DISPLAY CO., LTD., KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Dae-Wi Yoon, Suk-Young Bae, In-Ae Shin, Su-Na Choi, Dong-Hoon Choi, Min-Ju Cho, Jiwon Yoon
  • Patent number: 11825741
    Abstract: The present disclosure relates to an organic compound having the following structure, and an organic light emitting diode (OLED) and an organic light emitting device including the organic compound. The organic compound is a bipolar compound having a p-type moiety and an n-type moiety and has high energy level and proper energy bandgap for an emissive layer of the OLED. As the organic compound is applied into the emissive layer, the OLED can maximize its luminous properties as holes and electrons are recombined uniformly over the whole area in an emitting material layer (EML).
    Type: Grant
    Filed: July 16, 2020
    Date of Patent: November 21, 2023
    Assignees: LG DISPLAY CO., LTD., KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Kyung-Jin Yoon, Dae-Wi Yoon, Ji-Ae Lee, Su-Na Choi, Dong-Hoon Choi, Min-Ju Cho, Jiwon Yoon
  • Patent number: 11820761
    Abstract: The present disclosure relates to an organic compound having the following structure, and an organic light emitting diode (OLED) and an organic light emitting device including the organic compound. Applying the organic compound into an emissive layer makes the OLED and the organic light emitting device lower their driving voltage, improves their luminous efficiency and color purity.
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: November 21, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Mi-Sang Yoo, Kyung-Jin Yoon, Dae-Wi Yoon, In-Ae Shin, Suk-Young Bae
  • Patent number: 11802102
    Abstract: The present disclosure provides an organic compound of following formula and an organic light emitting diode and an OLED device including the organic compound.
    Type: Grant
    Filed: November 20, 2020
    Date of Patent: October 31, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Suk-Young Bae, Kyung-Jin Yoon, Dae-Wi Yoon, In-Ae Shin, Mi-Sang Yoo
  • Patent number: 11800732
    Abstract: The present disclosure relates to an organic light emitting diode including an emitting material layer that has a host and two different delayed fluorescent materials whose energy levels are controlled and an organic light emitting device including the diode. Exciton energy is transferred from a first delayed fluorescent dopant to a second delayed fluorescent dopant, which has singlet and triplet energy levels lower than singlet and triplet energy levels of the first delayed fluorescent dopant and a narrow FWHM (full-width at half maximum) compared to the first delayed fluorescent dopant so that efficient light emission can be realized.
    Type: Grant
    Filed: July 8, 2022
    Date of Patent: October 24, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Chun-Ki Kim, Joong-Hwan Yang, Bo-Min Seo, Dae-Wi Yoon
  • Publication number: 20230200205
    Abstract: The present disclosure relates to an emitting compound and organic light emitting device including the same, more specifically, relates to an emitting compound of following and an organic light emitting diode and an organic light emitting device each including the emitting compound.
    Type: Application
    Filed: November 21, 2022
    Publication date: June 22, 2023
    Inventors: Su-Na Choi, Dae-Wi Yoon, Seong-Su Jeon
  • Publication number: 20230189642
    Abstract: The present disclosure relates to an emitting compound and organic light emitting device including the same, more specifically, relates to an emitting compound of following and an organic light emitting diode and an organic light emitting device each including the emitting compound.
    Type: Application
    Filed: November 21, 2022
    Publication date: June 15, 2023
    Inventors: Su-Na Choi, Dae-Wi Yoon
  • 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: 11505557
    Abstract: Discussed is an organic compound of Formula 1 and an organic light emitting diode and an OLED device including the organic compound. In the organic compound, Ar1 is a heteroaryl group comprising a nitrogen atom, and Ar2 is a C6 to C30 aryl group, and R is a C1 to C10 alkyl group. The organic compound may be included in an emitting material layer of the organic light emitting diode as a host such that an emitting efficiency and a lifespan of the organic light emitting diode and the OLED device are improved.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: November 22, 2022
    Assignees: LG DISPLAY CO., LTD., KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Dae-Wi Yoon, Bo-Min Seo, Chun-Ki Kim, Dong-Hoon Choi, Min-Ju Cho, Su-Na Choi, Mallesham Godumala
  • Publication number: 20220367828
    Abstract: The present disclosure relates to an organic light emitting diode including an emitting material layer that has a host and two different delayed fluorescent materials whose energy levels are controlled and an organic light emitting device including the diode. Exciton energy is transferred from a first delayed fluorescent dopant to a second delayed fluorescent dopant, which has singlet and triplet energy levels lower than singlet and triplet energy levels of the first delayed fluorescent dopant and a narrow FWHM (full-width at half maximum) compared to the first delayed fluorescent dopant so that efficient light emission can be realized.
    Type: Application
    Filed: July 8, 2022
    Publication date: November 17, 2022
    Applicant: LG Display Co., Ltd.
    Inventors: Chun-Ki Kim, Joong-Hwan Yang, Bo-Min Seo, Dae-Wi Yoon
  • Patent number: 11456427
    Abstract: An organic light emitting diode including at least one emitting material layer, which includes a host and a dopant and at least one exciton energy control layer disposed adjacently to the at least one emitting material layer and an organic light emitting device having the same is disclosed. The at least one exciton energy control layer includes an organic compound that has excited state singlet and triplet energy levels lower than excited state singlet and triplet energy levels of the host. The organic light emitting diode can enhance its luminous efficiency and its luminous lifetime by incorporating one or more exciton energy control layers.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: September 27, 2022
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Bo-Min Seo, Jeong-Eun Baek, Dae-Wi Yoon, Mi-Sang Yoo
  • Patent number: 11424424
    Abstract: The present disclosure relates to an organic light emitting diode including an emitting material layer that has a host and two different delayed fluorescent materials whose energy levels are controlled and an organic light emitting device including the diode. Exciton energy is transferred from a first delayed fluorescent dopant to a second delayed fluorescent dopant, which has singlet and triplet energy levels lower than singlet and triplet energy levels of the first delayed fluorescent dopant and a narrow FWHM (full-width at half maximum) compared to the first delayed fluorescent dopant so that efficient light emission can be realized.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: August 23, 2022
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Chun-Ki Kim, Joong-Hwan Yang, Bo-Min Seo, Dae-Wi Yoon
  • Patent number: 11401268
    Abstract: An organic compound, an organic light emitting diode including the compound, and an organic light emitting device including the organic light emitting diode are disclosed. The organic compound may include a fused hetero aromatic moiety having a p-type property and an aza-acridine moiety having an n-type property bonded to the fused hetero aromatic moiety via an aromatic or a hetero aromatic linker. The organic compound has relatively high energy level since it includes plural fused hetero aromatic rings. Holes and electrons can be recombined in an emitting material layer in a balanced manner since the organic compound has a bipolar property. The organic light emitting diode and the organic light emitting device including the organic compound have enhanced luminous efficiency and luminous lifetime.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: August 2, 2022
    Assignees: LG DISPLAY CO., LTD., KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Bo-Min Seo, Dae-Wi Yoon, Joong-Hwan Yang, Dong-Hoon Choi, Su-Na Choi, Hyung-Jong Kim, Mallesham Godumala
  • 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: 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: 20210163504
    Abstract: The present disclosure relates to an organic compound having the following structure, and an organic light emitting diode (OLED) and an organic light emitting device including the organic compound. The organic compound includes an electron donor moiety separated from an electron acceptor moiety, thus has delayed fluorescent properties. Applying the organic compound into an emissive layer makes the OLED and the organic light emitting device can allows the OLED and the organic light emitting device to improve their luminous efficiency.
    Type: Application
    Filed: November 24, 2020
    Publication date: June 3, 2021
    Applicant: LG DISPLAY CO., LTD.
    Inventors: In-Ae SHIN, Kyung-Jin YOON, Dae-Wi YOON, Suk-Young BAE, Mi-Sang YOO
  • Publication number: 20210155566
    Abstract: The present disclosure provides an organic compound of following formula and an organic light emitting diode and an OLED device including the organic compound.
    Type: Application
    Filed: November 20, 2020
    Publication date: May 27, 2021
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Suk-Young BAE, Kyung-Jin YOON, Dae-Wi YOON, In-Ae SHIN, Mi-Sang YOO
  • Publication number: 20210119147
    Abstract: The present disclosure relates to an organic compound having the following structure, and an organic light emitting diode (OLED) and an organic light emitting device including the organic compound. The organic compound is a bipolar compound having a p-type moiety and an n-type moiety and has high energy level and proper energy bandgap for an emissive layer of the OLED. As the organic compound is applied into the emissive layer, the OLED can maximize its luminous properties as holes and electrons are recombined uniformly over the whole area in an EML.
    Type: Application
    Filed: October 12, 2020
    Publication date: April 22, 2021
    Applicants: LG Display Co., Ltd., Korea University Research and Business Foundation
    Inventors: Dae-Wi YOON, Suk-Young BAE, In-Ae SHIN, Su-Na CHOI, Dong-Hoon CHOI, Min-Ju CHO, Jiwon YOON