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: 20210070740
    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: Application
    Filed: September 4, 2020
    Publication date: March 11, 2021
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Mi-Sang YOO, Kyung-Jin YOON, Dae-Wi YOON, In-Ae SHIN, Suk-Young BAE
  • Publication number: 20210036237
    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: Application
    Filed: July 31, 2020
    Publication date: February 4, 2021
    Applicants: LG Display Co., Ltd., Korea University Research and Business Foundation
    Inventors: Suk-Young BAE, Jun-Yun KIM, Dae-Wi YOON, Jeong-Eun BAEK, Han-Young WOO, Hye-Beom SHIN
  • Publication number: 20210020847
    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: Application
    Filed: July 16, 2020
    Publication date: January 21, 2021
    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: 10892419
    Abstract: Discussed is a space-through charge transfer compound including a naphthalene core; an electron donor moiety selected from carbazole and phenylcarbazole; and an electron acceptor moiety selected from pyridine, diazine, triazole, and phenyl benzodiazole, wherein the electron donor moiety and the electron acceptor moiety are combined to first and eighth positions of the naphthalene core with a benzene linker, respectively.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: January 12, 2021
    Assignee: LG Display Co., Ltd.
    Inventors: Hyo-Jin Noh, Kyung-Jin Yoon, Dae-Wi Yoon, In-Ae Shin, Jun-Yun Kim
  • Patent number: 10889602
    Abstract: Embodiments relate to an organic compound of Formula 1: The excitons in the triplet state are engaged in emission such that the emitting efficiency of the organic compound is increased. Embodiments also relate to an organic light emitting display device with an organic light emitting diode that includes the organic compound.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: January 12, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Jun-Yun Kim, Hyo-Jin Noh, Dae-Wi Yoon
  • Patent number: 10770662
    Abstract: The present invention 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 28, 2017
    Date of Patent: September 8, 2020
    Assignees: LG Display Co., Ltd., Korea University Research And Business Foundation
    Inventors: Dae-Wi Yoon, Jun-Yun Kim, Dong-Hoon Choi, Su-Na Choi
  • Publication number: 20200207760
    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: Application
    Filed: December 16, 2019
    Publication date: July 2, 2020
    Applicants: 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
  • Patent number: 10700290
    Abstract: An organic compound is represented by the Formula below, and an organic light-emitting diode and an organic light-emitting diode display device include the organic compound.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: June 30, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Hyo-Jin Noh, Dae-Wi Yoon, Jun-Yun Kim
  • Publication number: 20200194689
    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: Application
    Filed: December 11, 2019
    Publication date: June 18, 2020
    Applicant: LG Display Co., Ltd
    Inventors: Bo-Min Seo, Jeong-Eun Baek, Dae-Wi Yoon, Mi-Sang Yoo
  • Publication number: 20200190100
    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: Application
    Filed: December 12, 2019
    Publication date: June 18, 2020
    Applicants: 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: 20200185632
    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: December 11, 2019
    Publication date: June 11, 2020
    Applicant: LG Display Co., Ltd.
    Inventors: Chun-Ki Kim, Joong-Hwan Yang, Bo-Min Seo, Dae-Wi Yoon
  • Patent number: 10651399
    Abstract: Embodiments relate to a delayed fluorescence compound of The excitons in the triplet state are engaged in emission such that the emitting efficiency of the delayed fluorescent compound is increased. Embodiments also relate to a display device with an organic light emitting diode (OLED) that includes the delayed fluorescence compound.
    Type: Grant
    Filed: October 1, 2018
    Date of Patent: May 12, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Joong-Hwan Yang, Kyung-Jin Yoon, Hyo-Jin Noh, Dae-Wi Yoon, In-Ae Shin, Jun-Yun Kim
  • Patent number: 10566561
    Abstract: An organic light emitting diode includes an emitting material layer including first and second layers; a first electrode on a side of the emitting material layer; and a second electrode on the other side of the light emitting material layer and facing the first electrode, wherein the first layer includes a first compound, and the second layer includes a second compound, wherein the first compound has a difference, between a singlet energy and a triplet energy, less than 0.3 eV, and wherein the singlet energy of the first compound is greater than a singlet energy of the second compound.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: February 18, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Jun-Yun Kim, Joong-Hwan Yang, Hyo-Jin Noh, Dae-Wi Yoon
  • Publication number: 20200052226
    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: Application
    Filed: July 26, 2019
    Publication date: February 13, 2020
    Inventors: Bo-Min SEO, Dae-Wi YOON, Jun-Yun KIM, Chun-Ki KIM, Mi-Sang YOO
  • Publication number: 20190081244
    Abstract: Discussed is a space-through charge transfer compound including a naphthalene core; an electron donor moiety selected from carbazole and phenylcarbazole; and an electron acceptor moiety selected from pyridine, diazine, triazole, and phenyl benzodiazole, wherein the electron donor moiety and the electron acceptor moiety are combined to first and eighth positions of the naphthalene core with a benzene linker, respectively.
    Type: Application
    Filed: October 11, 2018
    Publication date: March 14, 2019
    Inventors: Hyo-Jin NOH, Kyung-Jin YOON, Dae-Wi YOON, In-Ae SHIN, Jun-Yun KIM
  • Publication number: 20190036035
    Abstract: Embodiments relate to a delayed fluorescence compound of The excitons in the triplet state are engaged in emission such that the emitting efficiency of the delayed fluorescent compound is increased. Embodiments also relate to a display device with an organic light emitting diode (OLED) that includes the delayed fluorescence compound.
    Type: Application
    Filed: October 1, 2018
    Publication date: January 31, 2019
    Inventors: Joong-Hwan YANG, Kyung-Jin YOON, Hyo-Jin NOH, Dae-Wi YOON, In-Ae SHIN, Jun-Yun KIM
  • Patent number: 10193085
    Abstract: Embodiments relate to a delayed fluorescence compound of Formula 1: or Formula 2: The excitons in the triplet state are engaged in emission such that the emitting efficiency of the delayed fluorescent compound is increased. Embodiments also relate to a display device with an organic light emitting diode (OLED) that includes the delayed fluorescence compound.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: January 29, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Joong-Hwan Yang, Kyung-Jin Yoon, Hyo-Jin Noh, Dae-Wi Yoon, In-Ae Shin, Jun-Yun Kim
  • Patent number: 10141515
    Abstract: Discussed is a space-through charge transfer compound including a naphthalene core; an electron donor moiety selected from carbazole and phenylcarbazole; and an electron acceptor moiety selected from pyridine, diazine, triazole, and phenyl benzodiazole, wherein the electron donor moiety and the electron acceptor moiety are combined to first and eighth positions of the naphthalene core with a benzene linker, respectively.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: November 27, 2018
    Assignee: LG Display Co., Ltd.
    Inventors: Hyo-Jin Noh, Kyung-Jin Yoon, Dae-Wi Yoon, In-Ae Shin, Jun-Yun Kim
  • Patent number: 10135005
    Abstract: Embodiments relate to a delayed fluorescence compound of Formula 1: or Formula 2: The excitons in the triplet state are engaged in emission such that the emitting efficiency of the delayed fluorescent compound is increased. Embodiments also relate to a display device with an organic light emitting diode (OLED) that includes the delayed fluorescence compound.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: November 20, 2018
    Assignee: LG Display Co., Ltd.
    Inventors: Joong-Hwan Yang, Kyung-Jin Yoon, Hyo-Jin Noh, Dae-Wi Yoon, In-Ae Shin, Jun-Yun Kim
  • Publication number: 20180269408
    Abstract: Embodiments relate to a delayed fluorescence compound of Formula 1: or Formula 2: The excitons in the triplet state are engaged in emission such that the emitting efficiency of the delayed fluorescent compound is increased. Embodiments also relate to a display device with an organic light emitting diode (OLED) that includes the delayed fluorescence compound.
    Type: Application
    Filed: March 13, 2018
    Publication date: September 20, 2018
    Inventors: Joong-Hwan YANG, Kyung-Jin YOON, Hyo-Jin NOH, Dae-Wi YOON, In-Ae SHIN, Jun-Yun KIM