Patents by Inventor Jung Hyun Seo

Jung Hyun Seo 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: 11428848
    Abstract: An anti-reflective film including: a hard coating layer; and a low refractive index layer containing a binder resin, and two or more kind of hollow inorganic particles having different particle diameters measured by dynamic light scattering (DLS), wherein the two or more kind of hollow inorganic particles having different particle diameters include one kind of hollow inorganic particles having a particle diameter of 40 nm to 60 nm and one kind of hollow inorganic particles having a particle diameter of 65 nm to 100 nm, and a display apparatus comprising the anti-reflective film.
    Type: Grant
    Filed: May 1, 2020
    Date of Patent: August 30, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Jinseok Byun, Jung Hyun Seo, Kwangseok Seo, Yeongrae Chang
  • Publication number: 20220206188
    Abstract: The present disclosure relates to an anti-glare film including a light-transmitting substrate; and a hard coating layer containing a binder resin and particles dispersed in the binder resin, a polarizing plate, and a display apparatus including the same, wherein the particles include a first inorganic particle aggregate having an average particle diameter of 1 to 2 ?m; a second inorganic particle aggregate having an average particle diameter of 3 to 5 ?m; and organic particles in the form of primary particles having an average particle diameter of 1 to 10 ?m.
    Type: Application
    Filed: November 24, 2020
    Publication date: June 30, 2022
    Applicant: LG CHEM, LTD.
    Inventors: Hanna LEE, Jung Hyun SEO, Hye Min LEE, Yeongrae CHANG, Joo Jong MOON, Jae Hak KIM
  • Publication number: 20210324165
    Abstract: The present disclosure relates to a composition comprising: a solvent screened using a solvent-polymer particle interaction parameter ?Pi and a solvent-(meth)acrylate binder interaction parameter ?Bi, polymer particles, and a (meth)acrylate binder, and an optical film and a display device comprising the same.
    Type: Application
    Filed: March 4, 2020
    Publication date: October 21, 2021
    Applicant: LG CHEM, LTD.
    Inventors: Jung Hyun SEO, Intaek SONG, Seungha KIM, Soree KIM, Yeongrae CHANG
  • Patent number: 11112599
    Abstract: The present invention relates to an antireflection film which includes a hard coating layer and a low refractive index layer formed on the hard coating layer, wherein a roughness skewness (Rsk) of the concavo-convex shape of the surface is greater than 0.5 and less than 5, and a slope angle of the concavo-convex shape of the surface is greater than 0.01 degree and less than 0.2 degree, and a display device comprising the antireflection film.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: September 7, 2021
    Assignee: LG Chem, Ltd.
    Inventors: Jung Hyun Seo, Yeong Rae Chang, Jae Hoon Shim, Jin Young Park, Jae Pil Koo, Boo Kyung Kim
  • Publication number: 20210223453
    Abstract: The present invention relates to a polarizing plate including: a polarizer; a first hard coating layer positioned on the polarizer and containing binder resin including (meth)acrylate-based (co)polymer; a light transmitting substrate positioned on the first hard coating layer, having retardation of 3000 nm or more, and having in-plane birefringence; and a second hard coating layer positioned on the light transmitting substrate and including a binder resin, and solid-type inorganic nanoparticles dispersed in the binder resin, wherein the degree of a angle formed by the slow axis of the light transmitting substrate and the absorption axis of the polarizer is 5 to 85°, and an image display device including the same.
    Type: Application
    Filed: March 6, 2019
    Publication date: July 22, 2021
    Applicant: LG CHEM, LTD.
    Inventors: Jung Hyun SEO, Kyungki HONG, Yeongrae CHANG, Jin Young PARK
  • Publication number: 20210215851
    Abstract: The present disclosure provides an optical laminate including: a polymer substrate containing a polymer resin and rubber particles having a cross-sectional diameter of 10 to 500 nm dispersed in the polymer resin; and an antiglare layer containing a binder resin and organic fine particles, nano-inorganic particles and chain-shaped silica dispersed in the binder resin, wherein rubber particles having a cross-sectional diameter of 10 to 500 nm exist within 50% of the thickness of the antiglare layer from the interface between the polymer substrate and the antiglare layer, a polarizing plate including the optical laminate, and a liquid crystal display and a display device including the polarizing plate.
    Type: Application
    Filed: January 8, 2020
    Publication date: July 15, 2021
    Applicant: LG CHEM, LTD.
    Inventors: Min Soo KIM, Jung Hyun SEO, Jaehoon SHIM, Jae Pil KOO, Hyung Oh LIM, Jaeyoung KIM
  • Publication number: 20210206935
    Abstract: The present invention relates to an anti-reflective film that has a low reflectance deviation and a light transmittance deviation, can simultaneously realize high scratch resistance and anti-fouling property, and can increase screen sharpness of a display apparatus, a polarizing plate and a display apparatus comprising the same.
    Type: Application
    Filed: October 17, 2019
    Publication date: July 8, 2021
    Applicant: LG CHEM, LTD.
    Inventors: Jinseok BYUN, So Young KIM, Jung Hyun SEO, Dong Hyun KIM, Kyung Moon KO, Yeongrae CHANG
  • Publication number: 20210173133
    Abstract: The present disclosure provides a polarizing plate comprising: a polarizer; an optical laminate formed on one side of the polarizer and containing a polymer substrate and an antiglare layer; and a thermoplastic resin layer formed on the other side of the polarizer and containing a (meth)acrylate resin, and a liquid crystal panel and a display device including the polarizing plate.
    Type: Application
    Filed: January 10, 2020
    Publication date: June 10, 2021
    Applicant: LG CHEM, LTD.
    Inventors: Min Soo KIM, Jaehoon SHIM, Jung Hyun SEO, Jae Pil KOO, Joo Jong MOON, Jaeyoung KIM
  • Publication number: 20210116605
    Abstract: The present disclosure provides an optical laminate including a polymer substrate and an antiglare layer, wherein rubber particles having a cross-sectional diameter of 10 to 500 nm exist within 50% of the thickness of the antiglare layer from the interface between the polymer substrate and the antiglare layer, a polarizing plate including the optical laminate, and a liquid crystal display and a display device including the polarizing plate.
    Type: Application
    Filed: November 14, 2019
    Publication date: April 22, 2021
    Applicant: LG CHEM, LTD.
    Inventors: Jaeyoung KIM, Yeongrae CHANG, Jung Hyun SEO, Min Soo KIM, Intaek SONG
  • Publication number: 20210032478
    Abstract: The present invention relates to an anti-glare film including: a light-transmitting substrate; and a hard coating layer containing a binder resin and inorganic fine particles dispersed in the binder resin, wherein the anti-glare film has a specific reflection intensity ratio (R), and a polarizing plate and a display device including the anti-glare film.
    Type: Application
    Filed: September 19, 2019
    Publication date: February 4, 2021
    Applicant: LG CHEM, LTD.
    Inventors: Hanna LEE, Jung Hyun SEO, Yeongrae CHANG, Jaeyoung KIM, Intaek SONG
  • Publication number: 20210018667
    Abstract: The present invention relates to a polarizing plate including: a polarizer; a hard coating layer having a thickness of 10 ?m or less formed on one surface side of the polarizer; and an optical laminate including a light-transmitting substrate formed on the other surface side of the polarizer.
    Type: Application
    Filed: July 1, 2019
    Publication date: January 21, 2021
    Applicant: LG CHEM, LTD.
    Inventors: Jung Hyun SEO, Jinseok BYUN, Jaehoon SHIM, Soo Kyoung LEE, Joo Jong MOON
  • Publication number: 20210018668
    Abstract: The present invention relates to a polarizing plate, a liquid crystal panel and a display device, and more specifically to a polarizing plate including a polarizer, and a hard coating layer having a thickness of 10 ?m or less and a light-transmitting substrate which are positioned so as to face each other on the basis of the polarizer, and to a liquid crystal panel and a display device including the same.
    Type: Application
    Filed: April 26, 2019
    Publication date: January 21, 2021
    Applicant: LG CHEM, LTD.
    Inventors: Jung Hyun SEO, Kyun Il RAH, Young Gon KIM, Taek Geun NAM, Gae Sung KIM, Hyun Soo LEE, Keon Woo KIM
  • Publication number: 20200407588
    Abstract: The present disclosure relates to a visibility improving film for a display panel and a display device including the same. More specifically, the present disclosure relates to a visibility improving film for a display panel capable of exhibiting excellent physical and optical properties particularly while improving the visibility of a laser pointer, by using polyethylene terephthalate as a substrate and including fine metal particles dispersed in the photocurable resin layer, and to a display device including the same.
    Type: Application
    Filed: March 11, 2019
    Publication date: December 31, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Hanna LEE, Kwangseok SEO, Yeongrae CHANG, Jung Hyun SEO
  • Publication number: 20200400860
    Abstract: [Summary] The present invention relates to an anti-glare film and a display apparatus, and more particularly to an anti-glare film including: a light-transmitting substrate; and a hard coating layer containing a binder resin, organic fine particles and inorganic fine particles dispersed in the binder resin, wherein a ratio of two or more organic fine particles aggregating with each other in the whole organic fine particles is 5% or less, and wherein a ratio of internal haze to external haze is 2.5 or less, and a display apparatus including the anti-glare film.
    Type: Application
    Filed: April 5, 2019
    Publication date: December 24, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Jung Hyun SEO, Hanna LEE, Kwangseok SEO, Yeongrae CHANG
  • Publication number: 20200355961
    Abstract: The present disclosure relates to a polarizing plate including: a polarizer, and a first hard coating layer having a thickness of 10 um or less and an anti-reflection film which are positioned so as to face each other around the polarizer, wherein the anti-reflection film includes a light-transmitting substrate and a second hard coating layer, and wherein a ratio (a/b) of a transmittance (a) at a wavelength of 400 nm of the second hard coating layer to the transmittance (b) at a wavelength of 500 nm of the second hard coating layer is 0.95 or less, or 0.85 to 0.95.
    Type: Application
    Filed: October 11, 2019
    Publication date: November 12, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Intaek SONG, Jung Hyun SEO, Hanna LEE, Yeongrae CHANG, Jaeyoung KIM
  • Publication number: 20200348450
    Abstract: The present invention relates to an anti-reflective film that comprises a low moisture permeable polymer film, a hard coating layer and a low refractive index layer and that has low reflectance deviation and light transmittance deviation, can simultaneously realize high scratch resistance and anti-fouling property, and can increase screen sharpness of a display apparatus, a polarizing plate and a display apparatus comprising the same.
    Type: Application
    Filed: October 17, 2019
    Publication date: November 5, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Jinseok BYUN, So Young KIM, Yeongrae CHANG, Jung Hyun SEO, Kwangseok SEO
  • Publication number: 20200319378
    Abstract: The present invention relates to an optical film for protecting a polarizer which can effectively suppress the generation of interference fringes derived from a polyester-based substrate film and exhibit a low curling property, thereby being suitably applied as a polarizer protective film or the like; a polarizing plate and an image display device comprising the same. The optical film for protecting a polarizer comprises a polyester-based substrate film having a refractive index of 1.6 to 1.7; and a hard coating layer formed on the substrate film and having a refractive index of 1.53 to 1.6 and a thickness of 13 ?m to 25 ?m, wherein the hard coating layer includes a predetermined cross-linked copolymer.
    Type: Application
    Filed: July 28, 2017
    Publication date: October 8, 2020
    Inventors: Jung Hyun SEO, Yeong Rae CHANG, Jin Seok BYUN, Jae Young KIM
  • Publication number: 20200284948
    Abstract: The present invention relates to an anti-reflective film including: a hard coating layer; and a low refractive index layer containing a binder resin containing a copolymer of a polyfunctional (meth)acrylate-based monomer, and inorganic particles dispersed in the binder resin, wherein the polyfunctional (meth)acrylate-based monomer includes a 2- to 4-functional (meth)acrylate-based monomer and a 5- to 6-functional (meth)acrylate-based monomer in a weight ratio of 9:1 to 6:4, and a polarizing plate and a display apparatus using the same.
    Type: Application
    Filed: January 15, 2019
    Publication date: September 10, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Jinseok BYUN, Kwangseok SEO, Jung Hyun SEO, Yeongrae CHANG
  • Publication number: 20200257022
    Abstract: An anti-reflective film including: a hard coating layer; and a low refractive index layer containing a binder resin, and two or more kind of hollow inorganic particles having different particle diameters measured by dynamic light scattering (DLS), wherein the two or more kind of hollow inorganic particles having different particle diameters include one kind of hollow inorganic particles having a particle diameter of 40 nm to 60 nm and one kind of hollow inorganic particles having a particle diameter of 65 nm to 100 nm, and a display apparatus comprising the anti-reflective film.
    Type: Application
    Filed: May 1, 2020
    Publication date: August 13, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Jinseok BYUN, Jung Hyun SEO, Kwangseok SEO, Yeongrae CHANG
  • Patent number: 10711142
    Abstract: The present invention relates to an antireflection film which includes a hard coating layer and a low refractive index layer formed on the hard coating layer, wherein the sum of the volume of the convex portion of the peak equal to or higher than the average line is less than 0.03 mm3 in the surface area of 1.47 mm2, and the sum of the volume of the concave portion of the valley equal to or lower than the average line is less than 0.03 mm3 in the surface area of 1.47 mm2, and a display device comprising the antireflection film.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: July 14, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Jung Hyun Seo, Boo Kyung Kim, Yeong Rae Chang, Jae Hoon Shim, Jin Young Park, Jae Pil Koo