Patents by Inventor Tae-Ryang Hong

Tae-Ryang Hong 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: 20240196723
    Abstract: The present disclosure relates to an organometallic compound having the following structure of Chemical Formula 1, Ir(LA)m(LB)n, an organic light emitting diode (OLED) where the organometallic compound is applied to an emitting material layer and an organic light emitting device. The luminous efficiency, color purity and luminous lifespan of the OLED and the organic light emitting device can be improved.
    Type: Application
    Filed: May 12, 2023
    Publication date: June 13, 2024
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Tae Ryang HONG, Na-Yeon LEE
  • Publication number: 20240172552
    Abstract: The present disclosure relates to an organometallic compound having the structure of Chemical Formula 1, Ir(LA)m(LB)n, an organic light emitting diode (OLED) where the organometallic compound is applied to an emitting material layer and an organic light emitting device. The luminous efficiency, color purity and luminous lifespan of the OLED and the organic light emitting device can be improved.
    Type: Application
    Filed: May 10, 2023
    Publication date: May 23, 2024
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Tae Ryang HONG, Young Woo WOO
  • Publication number: 20240147830
    Abstract: The present disclosure relates to an organometallic compound having the following structure of Chemical Formula 1, Ir(LA)m(LB)n, an organic light emitting diode (OLED) where the organometallic compound is applied to an emitting material layer and an organic light emitting device. The luminous efficiency, color purity and luminous lifespan of the OLED and the organic light emitting device can be improved.
    Type: Application
    Filed: May 10, 2023
    Publication date: May 2, 2024
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Tae-Ryang HONG, In-Bum SONG, Sung-Jin PARK, Jae-Min MOON, Seok-Woo KANG
  • Patent number: 11895915
    Abstract: Disclosed is an organic light emitting diode (OLED) comprising at least one emitting unit that includes a first compound, which may have a bipolar property, a second compound, which may have a delayed fluorescent property, and a third compound, which may have narrow FWHM (full width at half maximum) and a fluorescent property, and an organic light emitting device including the OLED. Further the compounds have defined relative LUMO and HOMO energies. The OLED and the organic light emitting device has enhanced luminous efficiency, color purity and luminous life span as well as low driving voltage.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: February 6, 2024
    Assignees: LG DISPLAY CO., LTD, LG CHEM, LTD.
    Inventors: Hyong-Jong Choi, Tae-Ryang Hong, Joong-Hwan Yang, Jun-Yun Kim, Wan-Pyo Hong, Jin-Joo Kim, Hong-Sik Yoon
  • Patent number: 11864462
    Abstract: An organic light emitting diode includes a first electrode; a second electrode facing the first electrode; and an emitting material layer including a first compound and a second compound and positioned between the first and second electrodes. An energy level of the first compound and an energy level of the second compound satisfy a pre-determined condition. An organic light emitting device may include the organic light emitting diode.
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: January 2, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: Tae-Ryang Hong, Hyong-Jong Choi, Bo-Min Seo, Jun-Yun Kim
  • Patent number: 11683982
    Abstract: An organic compound including a carbazolyl moiety having a p-type property, a dibenzofuranyl or dibenzothiophenyl moiety having an n-type property and further substituted with a dibenzofuranyl or dibenzothiophenyl moiety is disclosed. An organic light emitting diode and an organic light emitting device including the organic compound are also disclosed. The organic compound has excellent thermal resistance and a high energy level due to the combination of fused hetero aromatic rings. Therefore, the organic light emitting diode and the organic light emitting device including the organic compound show excellent luminous efficiency and an improved luminous lifetime.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: June 20, 2023
    Assignees: LG DISPLAY CO., LTD., LG CHEM, LTD.
    Inventors: Jun-Yun Kim, Tae-Ryang Hong, Joong-Hwan Yang, Wan-Pyo Hong, Jin-Joo Kim, Hong-Sik Yoon
  • Patent number: 11667647
    Abstract: The disclosure provides a delayed fluorescent compound of the Formula and an organic light emitting diode including a first electrode, a second electrode and an organic emitting layer between the first and second electrodes, where the delayed fluorescent compound is included in the organic emitting layer, and an organic light emitting display device including the organic emitting layer.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: June 6, 2023
    Assignees: LG Display Co., Ltd., Soulbrain Co., Ltd.
    Inventors: Suk-Young Bae, Tae-Ryang Hong, Jun-Yun Kim, Jin-Hee Kim, Ah-Rang Lee
  • Patent number: 11655219
    Abstract: The present disclosure relates to an organic compound having the following structure of Chemical Formula 1, and an organic light emitting diode (OLED) and an organic light emitting device including the organic compound. The organic compound includes a triazine moiety of an electron acceptor and a fused hetero aromatic moiety of an electron donor separated from the triazine moiety. The organic compound includes the electron acceptor moiety and the electron donor moiety in a single molecule, thus charges can be moved in the molecule. Also, since the organic compound includes the rigid fused hetero aromatic ring, three dimensional conformation of the organic compound is limited, and therefore the compound may have excellent luminous efficiency and color purity.
    Type: Grant
    Filed: November 24, 2020
    Date of Patent: May 23, 2023
    Assignees: LG Display Co., Ltd., Soulbrain Co., Ltd.
    Inventors: Jun-Yun Kim, Hyong-Jong Choi, Joong-Hwan Yang, Bo-Min Seo, Tae-Ryang Hong, Jin Hee Kim, Eun-Chul Shin
  • Publication number: 20230131832
    Abstract: An organic light emitting diode (OLED) includes at least one emitting material layer (EML) disposed between two electrodes and including a first compound of a pyrimidine-based organic compound substituted with at least one electron-withdrawing group and a second compound of an organic compound having a tetracene-based core. The OLED can be included in an organic light emitting device. The first compound and the second compound can be the same emitting material layer or adjacently disposed emitting material layers. The OLED can lower its driving voltage and improve its luminous efficiency utilizing the advantages of the first and second compounds by adjusting energy levels between the first and second compounds.
    Type: Application
    Filed: June 17, 2022
    Publication date: April 27, 2023
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Tae-Ryang HONG, Dong-Young KIM
  • Publication number: 20230127360
    Abstract: An organic light emitting diode includes a first electrode; a second electrode facing the first electrode; and a first emitting material layer including a first compound and a second compound and positioned between the first and second electrodes. The emission spectrum of the first compound and the absorption spectrum of the second compound has a relatively large overlapping ratio. An organic light emitting device includes the organic light emitting diode and can be a display device or a lighting device.
    Type: Application
    Filed: July 29, 2022
    Publication date: April 27, 2023
    Applicant: LG Display Co., Ltd.
    Inventor: Tae-Ryang Hong
  • Patent number: 11637255
    Abstract: An embodiment of the present disclosure provides an organic light emitting diode comprising a first electrode; a second electrode facing the first electrode; and a first emitting material layer including a first delayed fluorescent dopant and a first phosphorescent dopant and disposed between the first and second electrodes, wherein a percentage by weight of the first phosphorescent dopant with respect to the first delayed fluorescent dopant is equal to or less than 5.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: April 25, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Tae-Ryang Hong, Hyong-Jong Choi, Jun-Yun Kim
  • Patent number: 11618736
    Abstract: The present disclosure relates to an organic compound having the following structure of Chemical Formula 1, and an organic light emitting diode (OLED) and an organic light emitting device including the organic compound. The organic compound includes a triazine moiety of an electron acceptor and a fused hetero aromatic moiety of an electron donor separated from the triazine moiety. The organic compound includes the electron acceptor moiety and the electron donor moiety in a single molecule, thus charges can be moved in the molecule. Also, since the organic compound includes the rigid fused hetero aromatic ring, three dimensional conformation of the organic compound is limited, and therefore the compound may have excellent luminous efficiency and color purity.
    Type: Grant
    Filed: November 24, 2020
    Date of Patent: April 4, 2023
    Assignees: LG Display Co., Ltd., Soulbrain Co., Ltd.
    Inventors: Jun-Yun Kim, Hyong-Jong Choi, Joong-Hwan Yang, Bo-Min Seo, Tae-Ryang Hong, Jin Hee Kim, Eun-Chul Shin
  • Publication number: 20230100457
    Abstract: The present disclosure relates to an organic light emitting diode that includes a first electrode; a second electrode facing the first electrode; and a first emitting material layer including a first compound and a second compound and positioned between the first and second electrodes, wherein an overlap ratio between an absorption spectrum of the first compound and an emission spectrum of the second compound is equal to or greater than 35%, and an organic light emitting display including the organic light emitting diode.
    Type: Application
    Filed: September 7, 2021
    Publication date: March 30, 2023
    Inventors: Gi Hwan Lim, Tae Ryang Hong, Jun Yun Kim
  • Patent number: 11588113
    Abstract: Disclosed is an organic light emitting diode (OLED) includes a first emitting material layer, which includes a first compound and a second compound, and a second emitting material layer, which includes a third compound and a fourth compound, wherein a HOMO energy level of the first compound is higher than a HOMO energy level of the second compound and a HOMO energy level of the third compound is lower than a HOMO energy level of the fourth compound, and an organic light emitting device having the OLED. The OLED and the organic light emitting device disclosed have enhanced luminous efficiency, color purity and luminous life span as well as low driving voltage by applying the emitting material layer.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: February 21, 2023
    Assignees: LG DISPLAY CO., LTD., LG CHEM, LTD.
    Inventors: Tae-Ryang Hong, Hyong-Jong Choi, Jun-Yun Kim, Wan-Pyo Hong, Jin-Joo Kim, Hong-Sik Yoon
  • Patent number: 11557731
    Abstract: The present disclosure provides an organic light emitting diode comprising a first electrode; a second electrode facing the first electrode; and an emitting material layer. The emitting material layer includes a p-type host, a n-type host and a phosphorescent dopant and positioned between the first electrode and the second electrode, wherein a first energy level of a HOMO of the p-type host is equal to or lower than a second energy level of a HOMO of the n-type host, and a difference between an energy level of a singlet state of the n-type host and an energy level of a triplet state of the n-type host is greater than 0.3 eV and smaller than 0.5 eV.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: January 17, 2023
    Assignees: LG DISPLAY CO., LTD., SOULBRAIN CO., LTD.
    Inventors: Hyong-Jong Choi, Tae-Ryang Hong, Jun-Yun Kim, Jin Hee Kim, Ah-Rang Lee
  • Patent number: 11420979
    Abstract: Disclosed is an organic compound that includes a fused hetero aromatic moiety of a spiro structure as an electron donor and a triazine moiety as an electron acceptor that is linked to the electron donor via an arylene linker substituted with at least one electron withdrawing group, an organic light emitting diode and an organic light emitting device each of which applies the organic compound into at least one emitting unit. The organic compound enables the organic light emitting diode to increase its luminous efficiency and to improve its color purity.
    Type: Grant
    Filed: December 24, 2019
    Date of Patent: August 23, 2022
    Assignees: LG DISPLAY CO., LTD., SOULBRAIN CO., LTD.
    Inventors: Ik-Rang Choe, Tae-Ryang Hong, Jun-Yun Kim, Jin Hee Kim, Eun Chul Shin
  • Patent number: 11417853
    Abstract: Disclosed is an organic light-emitting diode and an organic light-emitting device including the organic light-emitting diode. The organic light-emitting diode includes a cathode electrode; an anode electrode; a first emitting material layer including a first host and a first delayed fluorescent material, which is between the cathode electrode and the anode electrode; and a second emitting material layer having a second delayed fluorescent material and a first fluorescent or phosphorescent material, between the cathode electrode and the anode electrode. The organic light-emitting diode has enhanced luminous efficiency and color continuity.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: August 16, 2022
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Tae-Ryang Hong, Hyong-Jong Choi, Jun-Yun Kim
  • Publication number: 20220077401
    Abstract: The present disclosure relates to an organic compound in which an electron acceptor moiety and an electron donor moiety of a fused aromatic ring or a hetero aromatic ring are directly linked or through an linker moiety and they are connected via carbon-carbon bond, and an organic light emitting diode (OLED) and an organic light emitting device including the organic compound. The organic compound includes both the electron acceptor and donor moieties that are linked directly or through a linker moiety via a carbon-carbon bond having strong bond energy within its molecule, thus charges can be transported easily within the molecule. The OLED and the organic light emitting device including the organic compound in an emissive layer can implement excellent luminous efficiency and luminous lifespan.
    Type: Application
    Filed: July 26, 2021
    Publication date: March 10, 2022
    Applicants: LG DISPLAY CO., LTD., LT Materials Co., Ltd.
    Inventors: Tae-Ryang HONG, Suk-Young BAE, Jun-Yun KIM, Yong-Woo KIM, Yong-Geun JUNG, Jin-Hwan SHIN, Yeon-Jun SHIM
  • Publication number: 20220077402
    Abstract: The present disclosure relates to an organic compound including an electron acceptor moiety of a hetero aromatic ring having at least one nitrogen as a nuclear atom and an electron donor moiety of a fused aromatic or a fused hetero aromatic ring linked to the electron acceptor moiety directly or via a linker moiety, and an organic light emitting diode (OLED) and an organic light emitting device including the organic compound. The organic compound includes both the electron acceptor and donor moieties, thus charges can be transported easily within the molecule. The OLED and the organic light emitting device including the organic compound, which may comprise at least one substituent having strong electron withdrawing property at specific position, in an emissive layer can implement excellent luminous efficiency and luminous lifespan.
    Type: Application
    Filed: July 28, 2021
    Publication date: March 10, 2022
    Applicants: LG Display Co., Ltd., LT Materials Co., Ltd
    Inventors: Tae-Ryang HONG, Young-Ju RYU, Gi-Hwan LIM, Jun-Yun KIM, Yong-Woo KIM, Yong-Geun JUNG, Jin-Hwan SHIN, Yeon-Jun SHIM
  • Publication number: 20220006023
    Abstract: An organic light emitting diode (OLED) including at least one emitting material layer (EML) disposed between two electrodes and comprising a first compound and a second compound and an organic light emitting device having the OLED are disclosed. The first compound of delayed fluorescent material and the second compound of fluorescent material have predetermined energy levels so that the OLED can improve its stability and luminous lifespan.
    Type: Application
    Filed: June 30, 2021
    Publication date: January 6, 2022
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Tae-Ryang HONG, Gi-Hwan LIM, Jun-Yun KIM