Patents by Inventor Il-Jin Kim

Il-Jin 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: 20250145869
    Abstract: Disclosed herein are an adhesive film for a non-metal base material and a metal base material, an optical member including the adhesive film, and an optical display apparatus including the adhesive film. The adhesive film is a cured product of a composition including (meth)acrylic binder and a thermal curing agent. The adhesive film has a peel strength at 60° C. and 93% relative humidity of 400 gf/inch or more with respect to each of the non-metal base material and the metal base material. T. The (meth)acrylic binder is formed from a monomer mixture including 1 wt % to 10 wt % of a cycloaliphatic group-containing (meth)acrylic monomer.
    Type: Application
    Filed: November 6, 2024
    Publication date: May 8, 2025
    Inventors: Ji Yeon KIM, Dong Myeong SHIN, Ji Ho KIM, Se Mi HEO, Jun Ki OH, Tae Mi KIM, Ji Young HAN, Il Jin KIM
  • Publication number: 20250019573
    Abstract: Provided are an optical display device and an adhesive film to be included therein. The optical display device comprises: a panel for an optical display device and an adhesive film stacked on at least one surface of the panel for an optical display device, wherein the adhesive film has a storage modulus of 0.5 MPa or less at ?20° C., the adhesive film has a haze of 3% or more, and the optical display device does not include a polarization plate.
    Type: Application
    Filed: November 2, 2022
    Publication date: January 16, 2025
    Inventors: Do Young KIM, Gwang Hwan LEE, Ji Ho KIM, Il Jin KIM
  • Patent number: 12195643
    Abstract: An adhesive film for polarizing plates, a polarizing plate including the same, and an optical display apparatus including the same are provided. An adhesive film for polarizing plates is formed of an adhesive composition including a (meth)acrylic copolymer, an isocyanate curing agent, a metal chelate curing agent, and an antistatic agent, and has a surface resistance difference ?SR of 1.0 (log(?/?)) or less, as calculated by Equation 1 and, in Equation 1, SR1 is 10 (log(?/?)) or less.
    Type: Grant
    Filed: July 15, 2021
    Date of Patent: January 14, 2025
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Seung Jun Lee, Dae Yun Kim, Il Jin Kim, Mi Yeon Yu, Woo Jin Jeong, Ha Yun Cho
  • Publication number: 20240425728
    Abstract: An adhesive film and an optical display apparatus including the same are provided herein. The adhesive film includes: a (meth)acrylic copolymer; a chain-transfer agent; a photoinitiator; and a UV absorber mixture, wherein the UV absorber mixture includes: an indole-based UV absorber as a first UV absorber; and at least one of a triazine-based UV absorber or a benzotriazole-based UV absorber as a second UV absorber.
    Type: Application
    Filed: June 20, 2024
    Publication date: December 26, 2024
    Inventors: Do Young KIM, Sung Han KIM, Il Jin KIM
  • Publication number: 20240353593
    Abstract: Provided are an optical member and an optical display device comprising same, the optical member comprising a support layer and an optically functional layer laminated on one surface of the support layer, wherein: the optically functional layer includes a groove having inclined surfaces; at least one convex portion extending from the flat portion of the optically functional layer is formed at each of the inclined surfaces; the convex portion is a curved surface with a radius of curvature of 1 mm or greater, and each of the inclined surfaces satisfies expression 1.
    Type: Application
    Filed: August 3, 2022
    Publication date: October 24, 2024
    Inventors: Kyoung Gon PARK, Sung Hyun MUN, Jin Young LEE, Ji Young HAN, Ji Won KANG, Ji Yeon KIM, Ji Ho KIM, Jae Hyun HAN, Il Jin KIM, Gwang Hwan LEE, Do Young KIM, Dong Myeong SHING
  • Publication number: 20240327691
    Abstract: Provided are a silicone-based adhesive film, an optical member including same, and an optical display device comprising same, the silicone-based adhesive film being formed of a composition including: a reactive silicone-based resin; an MQ-type silicone-based resin; inorganic particles having a reactive functional group; and a catalyst, and the silicone-based adhesive film having a peel strength of 20 gf/inch or more, as measured on the surface of a fingerprint-resistant layer.
    Type: Application
    Filed: November 2, 2022
    Publication date: October 3, 2024
    Inventors: Sung Hyun MUN, Ji Won KANG, Il Jin KIM, Dong Myeong SHIN, Do Young KIM
  • Publication number: 20240327684
    Abstract: An adhesive film and a display member including the same are disclosed. The adhesive film is formed of an adhesive composition including: a copolymer of a monomer mixture including a hydroxyl group-containing (meth)acrylate and a comonomer; and nanoparticles. The adhesive film has a creep at ?20° C. of about 50 ?m to about 100 ?m and a gel fraction of about 50% to about 75%.
    Type: Application
    Filed: June 3, 2024
    Publication date: October 3, 2024
    Inventors: Ik Hwan Cho, Ji Ho Kim, Jee Hee Kim, Ji Won Kang, Byeong Do Kwak, Yong Tae Kim, Il Jin Kim, Sung Hyun Mun, Hyung Rang Moon, Seon Hee Shin, Gwang Hwan Lee, Woo Jin Lee, Jae Hyun Han
  • Patent number: 12084605
    Abstract: An adhesive film formed of an adhesive composition including a (meth)acrylic copolymer including an alkylene glycol group and a cyclic functional group while satisfying Equation 3 and Equation 4 herein, an optical member including the same, and an optical display including the same, are provided.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: September 10, 2024
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Ji Ho Kim, Ji Won Kang, Il Jin Kim, Sung Hyun Mun, Kyoung Gon Park, Gwang Hwan Lee, Jin Young Lee, Jae Hyun Han
  • Patent number: 11999879
    Abstract: An adhesive film and a display member including the same are disclosed. The adhesive film is formed of an adhesive composition including: a copolymer of a monomer mixture including a hydroxyl group-containing (meth)acrylate and a comonomer; and nanoparticles. The adhesive film has a creep at ?20° C. of about 50 ?m to about 100 ?m and a gel fraction of about 50% to about 75%.
    Type: Grant
    Filed: October 12, 2020
    Date of Patent: June 4, 2024
    Assignees: Samsung SDI Co., Ltd., Samsung Electronics Co., Ltd.
    Inventors: Ik Hwan Cho, Ji Ho Kim, Jee Hee Kim, Ji Won Kang, Byeong Do Kwak, Yong Tae Kim, Il Jin Kim, Sung Hyun Mun, Hyung Rang Moon, Seon Hee Shin, Gwang Hwan Lee, Woo Jin Lee, Jae Hyun Han
  • Publication number: 20240158669
    Abstract: Provided are: an optical laminate comprising a second adhesive layer, a second adhesive layer laminated on the second adhesive layer, and a light shield part laminated between the first adhesive layer and the second adhesive layer; an optical member comprising same; and an optical display device including same.
    Type: Application
    Filed: February 24, 2022
    Publication date: May 16, 2024
    Inventors: Ji Ho KIM, Sung Hyun MUN, Kyoung Gon PARK, Jin Young LEE, Jae Hyun HAN, Il Jin KIM, Dong Myeong SHIN
  • Publication number: 20240141206
    Abstract: Disclosed are an adhesive film and a display member including the same. The adhesive film includes a matrix including a (meth)acrylic copolymer containing hydroxyl group and nanoparticles dispersed in the matrix, wherein a difference in cohesive energy between the matrix and the nanoparticles is about 20,000 J/mol or less.
    Type: Application
    Filed: January 8, 2024
    Publication date: May 2, 2024
    Inventors: Seon Hee SHIN, Hyung Rang MOON, Il Jin KIM
  • Patent number: 11958993
    Abstract: Disclosed herein are an adhesive protective film, an optical member including the same, and an optical display including the same. An adhesive protective film is formed of a composition including a (meth)acrylic binder derived from a monomer mixture including: an alkyl group-containing (meth)acrylic monomer; and at least one selected from among a hydroxyl group-containing (meth)acrylic monomer, a carboxyl group-containing (meth)acrylic monomer, and a polysiloxane (meth)acrylate, the adhesive protective film having an initial peel strength of about 100 gf/inch or less and a peel strength decrease rate of about 50% or less, as calculated according to Equation 1.
    Type: Grant
    Filed: May 27, 2021
    Date of Patent: April 16, 2024
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Irina Nam, Tae Ji Kim, Won Kim, Il Jin Kim, Jung Hyo Lee, Oh Hyeon Hwang
  • Publication number: 20240076530
    Abstract: An adhesive film, an optical member including the same, and an optical display apparatus including the same are provided. An adhesive film includes a (meth)acrylic based copolymer, a (meth)acrylic based oligomer, and a curing agent and has a maximum shear strain of 50% or less at 60° C. and a peel strength of 600 gf/25 mm or more with respect to a polyimide based film at 25° C.
    Type: Application
    Filed: August 23, 2023
    Publication date: March 7, 2024
    Inventors: Ji Yeon Kim, Do Young Kim, Dong Myeong Shin, Ji Young Han, Kyoung Gon Park, Il Jin Kim
  • Publication number: 20240052214
    Abstract: Provided are: an adhesive film formed of an adhesive film composition comprising a (meth)acrylic binder, a (meth)acrylic oligomer, and a curing agent, wherein the adhesive film has a peak temperature of tan ? of about ?40° C. or less, and a storage modulus of about 0.3 MPa or less at ?20° C., an optical member including same; and an optical display apparatus including same.
    Type: Application
    Filed: December 21, 2021
    Publication date: February 15, 2024
    Inventors: Dong Myeong SHIN, Do Young KIM, Ji Yeon KIM, Ji Young HAN, Il Jin KIM, Kyoung Gon PARK
  • Publication number: 20230407141
    Abstract: Provided are an adhesive film, an optical member comprising same, and an optical display device comprising same, the adhesive film being formed of a composition that includes: a monomer mixture including a monomer having a glass transition temperature of homopolymer of about ?50° C. or less, and (meth)acrylate having a hydroxyl group; and an epoxy silane coupling agent, wherein a variation of the shear strain rate of equation 1 is about 10% or less for the adhesive film.
    Type: Application
    Filed: November 8, 2021
    Publication date: December 21, 2023
    Inventors: Dong Myeong SHIN, Ji Yeon KIM, Jin Young LEE, Jae Hyun HAN, Il Jin KIM, Kyoung Gon PARK
  • Publication number: 20230407155
    Abstract: A silicone-based adhesive protective film and an optical member including the same are provided. A silicone-based adhesive protective film is formed of a composition including a silicone resin, a crosslinking agent, and a curing catalyst, and the silicone-based adhesive protective film has a peel strength of about 3 gf/inch or less with respect to a glass plate at 25° C., and a modulus of about 0.5 MPa to about 7 MPa at 25° C.
    Type: Application
    Filed: August 25, 2023
    Publication date: December 21, 2023
    Inventors: Dong Il HAN, Tae Ji KIM, Won KIM, Il Jin KIM, Dong Myeong SHIN
  • Publication number: 20230407144
    Abstract: Provided are: an adhesive film for a surface protective film, formed from a composition comprising a urethane-based binder and an isocyanate-based curing agent; and an optical member comprising same, wherein the adhesive film has a release force increase rate, of formula 1, of 180% or less, an initial release force of 1-12 gf/inch, a nitrogen amount of 0.5-1.5 wt % and a modulus, at 25° C., of 0.05-0.8 MPa.
    Type: Application
    Filed: November 22, 2021
    Publication date: December 21, 2023
    Inventors: Irina NAM, Young Hoon KIM, Won KIM, Bong Soo PARK, Il Jin KIM, Dong Heon YUN, Dong Il YUN
  • Publication number: 20230383151
    Abstract: Provided is an adhesive composition for a polarizing plate, a polarizing plate, and an optical display device, wherein the adhesive composition comprises a polyvinyl alcohol-based resin, a crosslinking agent bearing a primary amine group or a secondary amine group, and an epoxy-based compound bearing an alkylene oxide group.
    Type: Application
    Filed: October 26, 2021
    Publication date: November 30, 2023
    Inventors: Tae Hyun LEE, Il Jin KIM, Mi Ran SEO, Mi Yeon YU, Woo Jin JEONG
  • Patent number: 11822109
    Abstract: Provided are a polarizing plate, a polarizing plate adhesive composition for same, and an optical display apparatus comprising same, the polarizing plate comprising: a polarizer; and a polarizing plate adhesive layer and a protective layer which are sequentially formed on at least one surface of the polarizer, wherein the polarizing plate adhesive layer comprises poly(ethylenedioxythiophene) poly(styrenesulfonate) (PEDOT:PSS), and the polarizing plate adhesive layer has a surface resistance of about 1×108 to about 1×1012(?/?).
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: November 21, 2023
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Tae Hyun Lee, Mi Yeon Yu, Seung Jun Lee, Woo Jin Jeong, Il Jin Kim
  • Publication number: 20230332024
    Abstract: Provided are an adhesive film, an optical member comprising same, and an optical display device comprising same, the adhesive film comprising a (meth)acryl-based binder containing an aromatic group and a hydroxyl group, inorganic particles, and a trigger polymer, wherein the trigger polymer has a melting point of about 0° C. or more, the adhesive film has a haze of about 2% or less, and an adhesive film has a ratio of adhesive strength of about 10 or more according to Equation 1.
    Type: Application
    Filed: September 1, 2021
    Publication date: October 19, 2023
    Inventors: Do Young KIM, Young Jong KIM, Seung Hoon LEE, Seong Heun CHO, Il Jin KIM