Patents by Inventor Byung Sook Kim

Byung Sook Kim 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: 20240094591
    Abstract: An optical path control member according to an embodiment comprises: a first substrate; a first electrode provided on the upper portion of the first substrate; a second substrate provided on the first substrate; a second electrode provided on the lower portion of the second substrate; and an optical conversion unit provided between the first electrode and the second electrode, wherein the optical conversion unit comprises partition wall parts and accommodation parts which are alternately arranged. The accommodation parts have a light transmission rate that varies according to the application of a voltage, and the accommodation parts comprise a plurality of unit accommodation cells spaced apart from each other, and comprises a dispersion and light-absorbing particles which are dispersed in the dispersion.
    Type: Application
    Filed: September 21, 2020
    Publication date: March 21, 2024
    Inventors: Jong Sik LEE, Byung Sook KIM, Jin Gyeong PARK, In Hae LEE, Young Ju HAN
  • Publication number: 20240085736
    Abstract: An optical path control member according to an embodiment comprises: a first substrate; a first electrode arranged on the upper surface of the first substrate; a second substrate arranged on top of the first substrate; a second electrode arranged on the lower surface of the second substrate; and an optical conversion unit which is arranged between the first electrode and the second electrode and which defines a first direction and a second direction, wherein the optical conversion unit comprises a partition part and an accommodation part that are alternately arranged in the first direction, the accommodation part includes a plurality of cells arranged to be spaced in the second direction, at least one of the cells includes a first inner side surface and a second inner side surface that are connected to each other, and the first inner side surface and/or the second inner side surface extends in a direction other than the first and second directions.
    Type: Application
    Filed: September 22, 2020
    Publication date: March 14, 2024
    Inventors: In Hae LEE, Young Ju HAN, Byung Sook KIM, Kweon Jin LEE, Jun Sik SHIN
  • Patent number: 11914242
    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 under the second substrate; and a photoconversion unit disposed between the first electrode and the second electrode, wherein the second substrate includes at least one hole penetrating the second substrate, and an electrode connection part connected to a side surface of the second electrode is disposed inside the hole.
    Type: Grant
    Filed: June 28, 2021
    Date of Patent: February 27, 2024
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Jin Gyeong Park, Chan Mi Ju, Byung Sook Kim
  • 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: 11899294
    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; a light conversion unit disposed between the first electrode and the second electrode; an adhesive layer between the second electrode and the light conversion unit; and a buffer layer between the first electrode and the light conversion unit. The light conversion unit includes a plurality of partition wall portions, a plurality of accommodation portions, and a base portion. The accommodation portions have a light conversion material disposed therein, and include at least two sealing regions formed on at least one of the first substrate or the second substrate.
    Type: Grant
    Filed: August 17, 2021
    Date of Patent: February 13, 2024
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Jun Sik Shin, Jong Sik Lee, Jong Tae Kwon, Byung Sook Kim, Jin Gyeong Park
  • 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
  • Publication number: 20230341714
    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; a light conversion unit disposed between the first electrode and the second electrode; an adhesive layer between the second electrode and the light conversion unit; and a buffer layer between the first electrode and the light conversion unit. The light conversion unit includes a plurality of partition wall portions, a plurality of accommodation portions, and a base portion. The accommodation portions have a light conversion material disposed therein, and include at least two sealing regions formed on at least one of the first substrate or the second substrate.
    Type: Application
    Filed: August 17, 2021
    Publication date: October 26, 2023
    Inventors: Jun Sik SHIN, Jong Sik LEE, Jong Tae KWON, Byung Sook KIM, Jin Gyeong PARK
  • Publication number: 20230324728
    Abstract: An optical path control member according to an embodiment comprises: a first substrate; a first electrode arranged on the first substrate; a second substrate arranged on the first substrate; a second electrode arranged below the second substrate; and a light conversion unit arranged between the first electrode and the second electrode, wherein the light conversion unit includes a partition part and accommodation parts, each accommodation part includes a dispersion liquid and light conversion particles dispersed in the dispersion liquid, the accommodation parts operate in a public mode or a privacy mode according to whether a voltage is applied thereto, the public mode includes the steps of applying an initial positive voltage and applying a positive sustaining voltage, the privacy mode includes a step of applying a negative voltage, the steps of applying the initial positive voltage, applying the positive sustaining voltage, and applying the negative voltage are sequentially performed, and the magnitude of th
    Type: Application
    Filed: September 3, 2021
    Publication date: October 12, 2023
    Inventors: Chan Mi JU, Byung Sook KIM
  • Publication number: 20230280612
    Abstract: An optical path control member according to an embodiment comprises: a first substrate on which a first direction and a second direction are defined; a first electrode arranged on the first substrate; a second substrate which is arranged on the first substrate and on which the first direction and the second direction are defined; a second electrode arranged under the second substrate; and a light conversion unit arranged between the first electrode and the second electrode, wherein the light conversion unit comprises an alternately arranged plurality of partition parts and plurality of accommodation parts, a light conversion material is arranged in the accommodation part, the accommodation part comprises at least one first region and at least one second region, and the height of the light conversion material arranged in the first region is less than the height of the light conversion material arranged in the second region.
    Type: Application
    Filed: July 8, 2021
    Publication date: September 7, 2023
    Inventors: Won Seok CHOI, Jin Gyeong PARK, Byung Sook KIM
  • Publication number: 20230273480
    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 includes a plurality of partition wall portions and a plurality of receiving portions which are alternately arranged; a light conversion material comprising a dispersion and multiple light conversion particles dispersed in the dispersion is disposed in the receiving portions; and the dispersion comprises a material having a carbon number of 2 to 13.
    Type: Application
    Filed: July 27, 2021
    Publication date: August 31, 2023
    Inventors: Jin Gyeong PARK, Jun LEE, Byung Sook KIM, Mun Yeong SON
  • 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: 20230258972
    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 under the second substrate; and a photoconversion unit disposed between the first electrode and the second electrode, wherein the second substrate includes at least one hole penetrating the second substrate, and an electrode connection part connected to a side surface of the second electrode is disposed inside the hole.
    Type: Application
    Filed: June 28, 2021
    Publication date: August 17, 2023
    Inventors: Jin Gyeong PARK, Chan Mi JU, Byung Sook KIM
  • Publication number: 20230236467
    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 second substrate and the second electrode comprise at least one hole penetrating the second substrate and the second electrode, and a sealing part is disposed inside the hole.
    Type: Application
    Filed: June 28, 2021
    Publication date: July 27, 2023
    Inventors: Jin Gyeong PARK, Jong Sik LEE, Byung Sook KIM
  • Publication number: 20230229035
    Abstract: An optical 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 and by which the first direction and the second direction are defined; a second electrode disposed under the second substrate; and an optical conversion unit disposed between the first electrode and the second electrode, wherein the second substrate and the second electrode include a cutting part penetrating the second substrate and the second electrode, the cutting part includes: a 1-1 cutting part and a 1-3 cutting part disposed to face each other in the second direction; a 1-2 cutting part disposed adjacent to the 1-1 cutting part and spaced apart from the 1-1 cutting part; and a 1-4 cutting part disposed adjacent to the 1-3 cutting part and spaced apart from the 1-3 cutting part, a 1-1 sealing part and a 1-3 sealing part are respectively disposed in the 1-
    Type: Application
    Filed: July 23, 2021
    Publication date: July 20, 2023
    Inventors: Jin Gyeong PARK, Jong Sik LEE, Byung Sook KIM, Hyung Woo YANG
  • Publication number: 20230194947
    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 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 part and an accommodation part which are alternately arranged, a sealing part is disposed on the outer surface of the light conversion unit, and the sealing part contains the same material as at least one among the first substrate and the second substrate.
    Type: Application
    Filed: April 19, 2021
    Publication date: June 22, 2023
    Applicant: LG INNOTEK CO., LTD.
    Inventors: Jong Sik LEE, Byung Sook KIM, Jun LEE, Mun Yeong SON, Jin Gyeong PARK
  • Publication number: 20230185152
    Abstract: A light path control member according to an embodiment comprises: a first substrate including an effective area and an ineffective area; a first electrode disposed on the first substrate; a second substrate disposed on the first substrate and including an effective area and an ineffective area; a second electrode disposed under the second substrate; and a light conversion unit disposed between the first electrode and the second electrode. The light conversion unit includes an alternating arrangement of partition wall parts and reception parts. A first hole passing through the first substrate is formed in at least one of the effective area or the ineffective area of the first substrate. A second hole passing through the first substrate is formed in at least one of the effective area or the ineffective area of the second substrate. A first connection electrode is disposed in the first hole, and a second connection electrode is disposed in the second hole.
    Type: Application
    Filed: April 15, 2021
    Publication date: June 15, 2023
    Applicant: LG INNOTEK CO., LTD.
    Inventors: Jin Gyeong PARK, Byung Sook KIM, Jong Sik LEE
  • Publication number: 20230185151
    Abstract: An optical path control member according to an embodiment comprises: a first substrate; a first electrode disposed on the first substrate; an optical conversion part disposed on the first electrode; a second substrate disposed on the first substrate; a second electrode disposed below the second substrate; and an adhesive layer disposed between the optical conversion part and second electrode. The optical conversion part comprises partition parts and accommodation parts which are alternately disposed. The accommodation parts comprise a dispersion liquid and optical conversion particles. The light transmittance of the accommodation parts changes in accordance with the application of voltage, and the driving speed measured by 85% reach time is less than 6 seconds.
    Type: Application
    Filed: April 19, 2021
    Publication date: June 15, 2023
    Applicant: LG INNOTEK CO., LTD.
    Inventors: Mun Yeong SON, Byung Sook KIM, Jin Mi NOH
  • Publication number: 20230176406
    Abstract: An optical path control member according to an embodiment comprises: a first substrate; a first electrode arranged on the first substrate; a second substrate arranged on the first substrate; a second electrode arranged beneath the second substrate; and a light conversion unit arranged between the first electrode and the second electrode, wherein the light conversion unit comprises a partition part and an accommodation part alternately arranged, the accommodation part includes a dispersion liquid and light conversion particles dispersed in the dispersion liquid, the accommodation part operates in a public mode or a privacy mode according to whether a voltage is applied, a first voltage is applied when changing from the privacy mode to the public mode, a second voltage and a third voltage are applied when changing from the public mode to the privacy mode, and the second voltage and/or the third voltage include a pulse voltage.
    Type: Application
    Filed: April 6, 2021
    Publication date: June 8, 2023
    Inventors: In Hae LEE, Chan Mi JU, Byung Sook KIM
  • Publication number: 20230161215
    Abstract: An optical path control member according to an embodiment comprises: a first substrate; a first electrode arranged on the first substrate; a second substrate arranged on the first substrate; a second electrode arranged under the second substrate; an optical conversion unit arranged between the first electrode and the second electrode; and an adhesive layer between the optical conversion unit and the second electrode, wherein the optical conversion unit comprises a partitioning part and an accommodation part that are alternately arranged, a dispersion liquid for changing the transmittance of light is arranged inside the accommodation part, the dispersion liquid is arranged to be in direct contact with the bottom surface and the inner side surfaces of the accommodation part and the lower surface of the adhesive layer, a first contact angle between the dispersion liquid and the bottom surface and the inner side surfaces of the accommodation part is 20° or lower, a second contact angle between the dispersion liqu
    Type: Application
    Filed: April 29, 2021
    Publication date: May 25, 2023
    Applicant: LG INNOTEK CO., LTD.
    Inventors: Mun Yeong SON, Byung Sook KIM
  • 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