Patents by Inventor Se-Jin Lee

Se-Jin Lee 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: 20230183200
    Abstract: The present invention relates to: an anthracene derivative compound having a specific structure; and an organic light-emitting device having low-voltage driving characteristics, comprising same, and also relates to an organic light-emitting device, which employs, as a dopant compound, a polycyclic aromatic derivative compound having a specific structure together in a light-emitting layer, and thus has excellent light-emitting characteristics such as further improved low-voltage driving.
    Type: Application
    Filed: May 12, 2021
    Publication date: June 15, 2023
    Applicant: SFC CO., LTD
    Inventors: Ji-yung KIM, Se-jin LEE, Yeong-tae CHOI, Kyung-tae KIM, Myeong-jun KIM, Kyeong-hyeon KIM
  • Publication number: 20230159566
    Abstract: The present disclosure relates to a boron compound useful in an organic light-emitting diode and an organic light-emitting diode comprising same and, more particularly, to a boron compound represented by any one of [Chemical Formula A] to [Chemical Formula E], wherein [Chemical Formula A] to [Chemical Formula E] is as defined in the description.
    Type: Application
    Filed: April 13, 2021
    Publication date: May 25, 2023
    Inventors: Myeong-Jun KIM, Se-Jin LEE, Yeong-Tae CHOI, Ji-Yung KIM, Kyungtae KIM, Kyeong-Hyeon KIM
  • Patent number: 11605333
    Abstract: A display device includes: a substrate having red, first green, second green and blue subpixels; a driving thin film transistor in each of the red, first green, second green and blue subpixels on the substrate; and a light emitting diode connected to the driving thin film transistor and in each of the red, first green, second green and blue subpixels, wherein the light emitting diodes of the red, first green, second green and blue subpixels includes red, first green, second green and blue emission areas, respectively, and wherein the first green emission area has a cross shape.
    Type: Grant
    Filed: November 30, 2021
    Date of Patent: March 14, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Min-Gyu Choi, Se-Jin Lee
  • Patent number: 11605785
    Abstract: There is provided an organic electroluminescence device, including at least an anode, a hole transport layer, a light-emitting layer, an electron transport layer, and a cathode in the stated order, the organic electroluminescence device being characterized in that the hole transport layer contains an arylamine compound represented by formula (1), and the light-emitting layer contains a heterocyclic compound having a fused ring structure represented by formula (2) or a heterocyclic compound having a fused ring stricture represented by formula (3), wherein each of formulas (1), (2) and (3) are set forth in the specification.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: March 14, 2023
    Assignees: HODOGAYA CHEMICAL CO., LTD., SFC CO., LTD.
    Inventors: Yuta Hirayama, Takeshi Yamamoto, Kazuyuki Suruga, Se-Jin Lee, Oun-Gyu Lee, Bong-Ki Shin
  • Publication number: 20230039080
    Abstract: The present disclosure relates to a boron compound useful in an organic light-emitting diode and an organic light-emitting diode comprising same and, more particularly, to a boron compound represented by [Chemical Formula A], wherein [Chemical Formula A] is as defined in the description.
    Type: Application
    Filed: February 4, 2021
    Publication date: February 9, 2023
    Inventors: Se-Jin LEE, Yeong-Tae CHOI, Ji-Young KIM, Kyungtae KIM, Myeong-Jun KIM, Kyeong-Hyeon KIM
  • Patent number: 11476426
    Abstract: Disclosed is an organic light emitting device including a first electrode, a second electrode opposite to the first electrode, and at least one organic layer interposed between the first and second electrodes. The organic layer includes first and second compounds represented by Formulae A and B, respectively: The organic light emitting device exhibits low driving voltage, high efficiency, and long life. Due to these advantages, the organic light emitting device is useful in a variety of industrial applications, including displays and lighting systems.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: October 18, 2022
    Assignee: SFC CO., LTD.
    Inventors: Se-jin Lee, Taejung Yu, Seok-bae Park, Byung-sun Yang, Su-Jin Lee, Bong-Hyang Lee, Yeongtae Choi
  • Publication number: 20220255021
    Abstract: Disclosed herein is an organic light emitting diode including a novel anthracene compound. More particularly, an organic light emitting diode including an anthracene compound represented by Chemical Formula A; and a compound represented by Chemical Formula B-1 or B-2 is provided. Chemical Formulas A, B-1, and B-2 are as defined in the description.
    Type: Application
    Filed: January 14, 2022
    Publication date: August 11, 2022
    Inventors: Se-Jin Lee, Si-In KIM, Seok-Bae Park, Hee-Dae Kim, Yeong-Tae Choi, Seung-Soo Lee, Ji-Yung Kim, Kyeong-Hyeon Kim, Kyungtae Kim, Myeong-Jun Kim, Tae Gyun Lee, Joon-Ho Kim
  • Publication number: 20220208068
    Abstract: A display device includes: a substrate having red, first green, second green and blue subpixels; a driving thin film transistor in each of the red, first green, second green and blue subpixels on the substrate; and a light emitting diode connected to the driving thin film transistor and in each of the red, first green, second green and blue subpixels, wherein the light emitting diodes of the red, first green, second green and blue subpixels includes red, first green, second green and blue emission areas, respectively, and wherein the first green emission area has a cross shape.
    Type: Application
    Filed: November 30, 2021
    Publication date: June 30, 2022
    Inventors: Min-Gyu Choi, Se-Jin Lee
  • Publication number: 20220187505
    Abstract: A display device includes a display panel including a plurality of pixel regions and configured to display a picture or an image, and a microlens array disposed on a front surface of the display panel. The microlens array includes a plurality of microlenses each having a polygonal pattern. Further, the microlenses can have different slanted angles.
    Type: Application
    Filed: December 9, 2021
    Publication date: June 16, 2022
    Applicant: LG Display Co., Ltd.
    Inventors: Min-Gyu CHOI, Se-Jin LEE, Dong-Hyeok KIM
  • Publication number: 20220181559
    Abstract: Disclosed are an anthracene derivative with a specific structure and an organic electroluminescent device including the anthracene derivative. The organic electroluminescent device includes a light emitting layer employing the anthracene derivative as a host compound and a polycyclic aromatic derivative with a specific structure as a dopant compound. The use of the host and dopant compounds allows the organic electroluminescent device to have a long lifetime and significantly improved low-voltage characteristics.
    Type: Application
    Filed: December 7, 2021
    Publication date: June 9, 2022
    Applicant: SFC CO., LTD
    Inventors: Se-jin LEE, Si-In KIM, Seok-bae PARK, Hee-dae KIM, Yeong-tae CHOI, Seung-soo LEE, Ji-yung KIM, Kyeong-hyeon KIM, Kyung-tae KIM, Myeong-jun KIM, Tae-gyun LEE, Joon-ho KIM
  • Publication number: 20220119360
    Abstract: An objective of the invention is to provide an organic EL device that combines various materials of the device and a capping layer composed from a material that absorbs sunlight within the wavelength range of 400 nm to 410 nm to prevent impact on materials inside the organic EL device, has a high light absorption coefficient and a high refractive index to significantly improve light extraction efficiency, has excellent stability, durability and light resistance in a thin film, and has no absorption within the wavelength ranges of blue, green and red, to thereby effectively achieve the characteristics of the various materials of the device. The invention is an arylamine compound having a benzazole structure, and is also an organic EL device including a capping layer containing the arylamine compound and a light-emitting layer containing a host and a phosphorescent dopant.
    Type: Application
    Filed: February 21, 2020
    Publication date: April 21, 2022
    Applicants: HODOGAYA CHEMICAL CO., LTD., SFC CO., LTD.
    Inventors: Shunji MOCHIZUKI, Takuya UEHARA, Kouki KASE, Yuta HIRAYAMA, Takeshi YAMAMOTO, Shuichi HAYASHI, Young-Tae CHOI, Se-Jin LEE, Seok-Bae PARK, Tae-Jung YU, Byung-Sun YANG
  • Publication number: 20220082855
    Abstract: A display device includes a display panel including a plurality of pixel regions and displaying a picture; and a light path controlling member located on a front surface of the display panel and transmitting the picture output from the display panel, wherein the light path controlling member includes a plurality of separation walls and a plurality of light path portions between the plurality of separation walls, and wherein a period of the light path portion is different from a period of the pixel region.
    Type: Application
    Filed: September 10, 2021
    Publication date: March 17, 2022
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Se-Jin LEE, Young-Woong KIM, Seung-Soo YANG, Min-Gyu CHOI
  • Publication number: 20220077403
    Abstract: The present invention provides various organic electroluminescent elements using a material for a capping layer and a material for a luminous layer, in which the material for a capping layer uses an arylamine material that exhibit excellent stability and durability in the form of a thin film, especially a specific amine compound having a high refractive index and having a high absorbance within a wavelength range from 400 nm to 410 nm in the absorption spectrum at a concentration of 10?5 mol/L; and in which the material for a luminous layer uses a compound containing a heterocyclic compound that has a specific fused ring structure.
    Type: Application
    Filed: December 18, 2019
    Publication date: March 10, 2022
    Applicants: Hodogaya Chemical Co., Ltd., SFC CO., LTD.
    Inventors: Yuta HIRAYAMA, Takeshi YAMAMOTO, Shunji MOCHIZUKI, Shuichi HAYASHI, Se-Jin LEE, Oun-Gyu LEE, Bong-Ki SHIN
  • Publication number: 20220054922
    Abstract: A pitching machine pitch type and speed data providing method is carried out by a service providing apparatus connected to a user terminal through a network, and the method includes the steps of acquiring player data having pitch types and command percentages by pitcher in real game situations, converting the player data into pitch type and speed data of a given pitching machine, receiving a request message for the player data, and providing the pitch type and speed data corresponding to the player data for the user terminal in response to the request message for the player data.
    Type: Application
    Filed: January 8, 2019
    Publication date: February 24, 2022
    Applicant: LOSNY SPORTS CO.LTD.
    Inventors: Seo Il YANG, Se Jin LEE
  • Publication number: 20220002319
    Abstract: The present disclosure relates to a boron compound useful in an organic light-emitting diode and an organic light-emitting diode comprising same and, more particularly, to a boron compound represented by [Chemical Formula A] or [Chemical Formula B], wherein [Chemical Formula A] and [Chemical Formula B] are as defined in the description.
    Type: Application
    Filed: November 19, 2019
    Publication date: January 6, 2022
    Inventors: Se-Jin Lee, Bong-Hyang Lee, Taejung Yu, Yeong-Tae Choi, Kyung-Tae Kim
  • Patent number: 11217754
    Abstract: According to the present invention, there is provided an organic electroluminescent device which has an anode, a hole transport layer, a luminous layer, an electron transport layer, and a cathode arranged in order of description. The device is characterized in that: the hole transport layer includes a specific arylamine compound, and that the luminous layer includes a specific indenoindole derivative or a specific carbazole derivative. The organic EL device of the present invention has improved efficiency of hole transport from the hole transport layer to the luminous layer and also improved efficiency of electron transport from the electron transport layer to the luminous layer, in comparison to conventional organic EL devices.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: January 4, 2022
    Assignees: HODOGAYA CHEMICAL CO., LTD., SFC CO., LTD.
    Inventors: Shuichi Hayashi, Naoaki Kabasawa, Shunji Mochiduki, Se-Jin Lee, Oun-gyu Lee, Bong-Ki Shin
  • Publication number: 20210403490
    Abstract: The present disclosure relates to a boron compound useful in an organic light-emitting diode and an organic light-emitting diode comprising same and, more particularly, to a boron compound represented by [Chemical Formula A], wherein [Chemical Formula A] and [Chemical Formula C] are as defined in the description.
    Type: Application
    Filed: November 14, 2019
    Publication date: December 30, 2021
    Inventors: Se-Jin Lee, Bong-Hyang Lee, Taejung YU, Yeong-Tae Choi, Kyung-Tae Kim
  • Publication number: 20210408390
    Abstract: The present disclosure relates to a boron compound useful in an organic light-emitting diode and an organic light-emitting diode comprising same and, more particularly, to a boron compound represented by any one of [Chemical Formula A] to [Chemical Formula C], wherein [Chemical Formula A] to [Chemical Formula C] are as defined in the description.
    Type: Application
    Filed: November 18, 2019
    Publication date: December 30, 2021
    Inventors: Se-Jin Lee, Bong-Hyang LEE, Taejung Yu, Yeong-Tae Choi, Kyung-Tae Kim
  • Publication number: 20210376241
    Abstract: Disclosed are amine-substituted naphthalene derivatives and organic light emitting diodes including the same. In the organic light emitting diodes, at least one of the amine-substituted naphthalene derivatives is employed in a hole auxiliary layer interposed between a hole transport layer and a light emitting layer to enable efficient hole transport to the light emitting layer, achieving high luminous efficiency and long lifetime.
    Type: Application
    Filed: August 11, 2021
    Publication date: December 2, 2021
    Applicant: SFC CO., LTD.
    Inventors: Se-jin LEE, Bong-Hyang LEE, Taejung YU, Yeongtae CHOI, Dajung LEE
  • Publication number: 20210317144
    Abstract: Disclosed herein are a boron compound available for an organic light-emitting diode and an organic light-emitting diode including same. More particularly, a boron compound represented by Chemical Formula A and an organic light-emitting diode including same are provided. Chemical Formula A is as defined in the description.
    Type: Application
    Filed: March 31, 2021
    Publication date: October 14, 2021
    Inventors: Kyung-Tae Kim, Se-Jin Lee, Yeong-Tae Choi, Ji-Yung Kim, Myeong-Jun Kim, Kyeong-Hyeon Kim