Patents by Inventor Hyeon Ji HONG

Hyeon Ji 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).

  • Patent number: 12153323
    Abstract: A light path control member according to an embodiment comprises: a first substrate by which a first direction and a second direction are defined; a first electrode disposed on the first substrate; a second substrate disposed on the first substrate; a second electrode disposed under the second substrate; and a light conversion unit disposed between the first electrode and the second electrode, wherein the light conversion unit comprises: a plurality of partitions; a plurality of accommodation units; and a base, wherein the accommodation units extend in the second direction, the first electrode includes a plurality of first pattern electrodes extending in the second direction and spaced apart from each other, and the first pattern electrodes overlap the accommodation units.
    Type: Grant
    Filed: January 4, 2022
    Date of Patent: November 26, 2024
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Jin Mi Noh, Byung Sook Kim, Ho Young Kim, Hyeon Ji Hong
  • Publication number: 20240061304
    Abstract: A light path control member according to an embodiment comprises: a first substrate by which a first direction and a second direction are defined; a first electrode disposed on the first substrate; a second substrate disposed on the first substrate; a second electrode disposed under the second substrate; and a light conversion unit disposed between the first electrode and the second electrode, wherein the light conversion unit comprises: a plurality of partitions; a plurality of accommodation units; and a base, wherein the accommodation units extend in the second direction, the first electrode includes a plurality of first pattern electrodes extending in the second direction and spaced apart from each other, and the first pattern electrodes overlap the accommodation units.
    Type: Application
    Filed: January 4, 2022
    Publication date: February 22, 2024
    Inventors: Jin Mi NOH, Byung Sook KIM, Ho Young KIM, Hyeon Ji HONG
  • Patent number: 11886049
    Abstract: An optical path control member according to an embodiment comprises: a first substrate; a first electrode disposed on the first substrate; a second substrate disposed on the first substrate; a second electrode disposed below the second substrate; and a light conversion unit disposed between the first electrode and the second electrode, wherein: the light conversion unit includes a partition wall portion, an accommodation portion, and a base portion; a light converting material including a dispersion liquid, light converting particles, and a dispersing agent is arranged in the accommodation portion; and the dispersing agent includes a nonionic dispersing agent.
    Type: Grant
    Filed: August 6, 2021
    Date of Patent: January 30, 2024
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Mun Yeong Son, Jin Mi Noh, Hyeon Ji Hong, Byung Sook Kim
  • Patent number: 11860466
    Abstract: An optical path control member according to an embodiment comprises an adhesive layer disposed between a second electrode and a light conversion part, wherein: the light conversion part includes a partition wall part and a reception part alternately arranged; the partition wall part includes a first area from the upper surface of the partition wall part up to 30 ?m in a direction toward the first substrate, a third area from the lower surface of the partition wall part up to 30 ?m in a direction toward the second substrate, and a second area provided between the first area and the third area; and Si measured by XPS in the first area corresponds to 2 at % or less.
    Type: Grant
    Filed: April 15, 2021
    Date of Patent: January 2, 2024
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Hyeon Ji Hong, In Hae Lee
  • Publication number: 20230341742
    Abstract: A light path control member according to an embodiment comprises: a first substrate; a first electrode disposed on the first substrate; a second substrate disposed on the first substrate; a second electrode disposed under the second substrate; and a light conversion part disposed between the first electrode and the second electrode, wherein: the light conversion part comprises a plurality of partition wall portions, a plurality of receiving portions, and a base portion; a light conversion material is disposed in the receiving portions; the light conversion part includes a first sealing portion which seals the light conversion material; the first sealing portion extends in a direction from one end to the other end thereof; and the other end of the first sealing portion is arranged to extend into the inner area of the receiving portions.
    Type: Application
    Filed: September 3, 2021
    Publication date: October 26, 2023
    Inventors: In Hae LEE, Chan Mi JU, Hyeon Ji HONG, Jun LEE, Gyu Lin LEE, Beom Sun HONG
  • Publication number: 20230324759
    Abstract: An optical path control member, according to one embodiment, comprises: a first substrate; a first electrode disposed on the first substrate; a second substrate disposed on the first substrate; a second electrode disposed under the second substrate; and a light conversion unit disposed between the first electrode and the second electrode, wherein the light conversion unit comprises a resin composition, the resin composition comprising an oligomer, a monomer, a photoinitiator and an additive, wherein the molecular weight of the monomer is at most 600 g/mol.
    Type: Application
    Filed: August 17, 2021
    Publication date: October 12, 2023
    Inventors: Mun Yeong Son, Hyeon Ji Hong, Jin Mi Noh
  • Publication number: 20230266625
    Abstract: An optical path control member according to an embodiment comprises: a first substrate; a first electrode disposed on the first substrate; a second substrate disposed on the first substrate; a second electrode disposed below the second substrate; and a light conversion unit disposed between the first electrode and the second electrode, wherein: the light conversion unit includes a partition wall portion, an accommodation portion, and a base portion; a light converting material including a dispersion liquid, light converting particles, and a dispersing agent is arranged in the accommodation portion; and the dispersing agent includes a nonionic dispersing agent.
    Type: Application
    Filed: August 6, 2021
    Publication date: August 24, 2023
    Inventors: Mun Yeong Son, Jin Mi Noh, Hyeon Ji Hong, Byung Sook Kim
  • Publication number: 20230194917
    Abstract: An optical path control member according to an embodiment comprises an adhesive layer disposed between a second electrode and a light conversion part, wherein: the light conversion part includes a partition wall part and a reception part alternately arranged; the partition wall part includes a first area from the upper surface of the partition wall part up to 30 ?m in a direction toward the first substrate, a third area from the lower surface of the partition wall part up to 30 ?m in a direction toward the second substrate, and a second area provided between the first area and the third area; and Si measured by XPS in the first area corresponds to 2 at % or less.
    Type: Application
    Filed: April 15, 2021
    Publication date: June 22, 2023
    Applicant: LG INNOTEK CO., LTD.
    Inventors: Hyeon Ji HONG, In Hae LEE
  • Publication number: 20230152658
    Abstract: An optical path control member according to an embodiment comprises: a first substrate; a first electrode disposed on the first substrate; a light conversion part disposed on the first electrode; a second substrate disposed on the first substrate; a second electrode disposed under the second substrate; and an adhesive layer disposed between the light conversion part and the second electrode, wherein the light conversion part comprises alternately disposed partition wall portions and accommodation portions, light transmittance of the accommodation portions changes according to voltage application, the upper surfaces of the partition wall portions are in contact with the adhesive layer, the light conversion part is formed of a photocurable resin, the photocurable resin comprises an oligomer, a monomer, a photopolymerization initiator, and an additive, and the additive comprises an antistatic agent in an amount of 1.5 wt % to 3.0 wt %.
    Type: Application
    Filed: April 28, 2021
    Publication date: May 18, 2023
    Applicant: LG INNOTEK CO., LTD.
    Inventors: Hyeon Ji HONG, Mun Yeong SON, Byung Sook KIM
  • Publication number: 20230077281
    Abstract: An optical path control member according to an embodiment comprises: a first substrate; a first electrode disposed on the upper part of the first substrate; a second substrate disposed on the first substrate; a second electrode disposed on the lower part of the second substrate; and an optical conversion unit disposed between the first electrode and the second electrode. The optical conversion unit includes partition wall portions and receiving portions that are alternately disposed. The receiving portions change optical transmittance in response to the application of voltage, and include a dispersion and optical conversion particles dispersed in the dispersion. The refractive index ratio of the partition wall portions and the receiving portions is 1:0.95 to 1:1.05.
    Type: Application
    Filed: January 12, 2021
    Publication date: March 9, 2023
    Inventors: Young Ju HAN, Byung Sook KIM, Hyeon Ji HONG, Won Seok CHOI, Jin Gyeong PARK
  • Publication number: 20220397801
    Abstract: An optical path control member, according to one embodiment, comprises: a first substrate; a first electrode disposed on the upper surface of the first substrate; a second substrate disposed above the first substrate; a second electrode disposed on the lower surface of the second substrate; and a light conversion unit disposed between the first electrode and the second electrode, wherein the light conversion unit comprises a partition wall part and an accommodation part which are alternately arranged. The accommodation part: has a light transmittance that varies according to the application of a voltage; comprises a dispersion liquid and a plurality of light-absorbing particles dispersed in the dispersion liquid; and has at least one protrusion part arranged therein. The protrusion part: makes contact with the partition wall part; and is extendedly arranged in a direction different from the extending direction of the partition wall part.
    Type: Application
    Filed: September 21, 2020
    Publication date: December 15, 2022
    Inventors: Jin Gyeong PARK, Byung Sook KIM, Hyeon Ji HONG, Mun Yeong SON