Patents by Inventor Jae Pil Koo

Jae Pil Koo 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: 11860340
    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: Grant
    Filed: January 8, 2020
    Date of Patent: January 2, 2024
    Assignee: LG CHEM, LTD.
    Inventors: Min Soo Kim, Jung Hyun Seo, Jaehoon Shim, Jae Pil Koo, Hyung Oh Lim, Jaeyoung Kim
  • Publication number: 20230366623
    Abstract: The electrode drying device includes a transfer unit that transfers an electrode sheet having an electrode slurry coated onto the current collector, and a drying chamber including an inflow port where the electrode sheet transferred by the transfer unit enters, wherein an interrupting member for adjusting the flow amount or flow velocity of outside air flowing in a drying chamber is formed at the inflow port, and a height of a central part of the interrupting member is different from a height of a peripheral part of the interrupting member.
    Type: Application
    Filed: January 18, 2022
    Publication date: November 16, 2023
    Applicant: LG Energy Solution, Ltd.
    Inventors: Jae Pil Koo, Jae Hyoung Son, Ha Yong Jeong, Taeyeon Kim
  • Patent number: 11312874
    Abstract: The present invention relates to an antireflection film including a low refractive index layer and a hard coating layer, the low refractive index layer including: a binder resin containing a crosslinked polymer of a photopolymerizable compound and a polysilsesquioxane substituted with one or more reactive functional groups; and inorganic fine particles dispersed in the binder resin, wherein a 10-point average roughness (Rz) of the shape of irregularities on the surface of the low refractive index layer is 0.05 ?m to 0.2 ?m.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: April 26, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Boo Kyung Kim, Yeong Rae Chang, Jae Hoon Shim, Jin Young Park, Jae Pil Koo
  • 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: 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: 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
  • 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
  • Patent number: 10690810
    Abstract: The present invention relates to an antireflection film comprising a hard coating layer in which a ten-point average roughness (Rz) of the surface irregularities is 0.05 ?m to 0.2 ?m and an internal haze is 0.5% to 5%; and a low refractive index layer formed on the hard coating layer, and a display device comprising the antireflection film.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: June 23, 2020
    Assignee: LG CHEM LTD.
    Inventors: Yeong Rae Chang, Jae Hoon Shim, Jung Hyun Seo, Jin Young Park, Soo Kyoung Lee, Jae Pil Koo, Tae Soon Kim, Min Soo Kim, Kyung Ki Hong, Joo Jong Moon, Hye Min Lee
  • Publication number: 20190004214
    Abstract: The present invention relates to an antireflection film including a low refractive index layer and a hard coating layer, the low refractive index layer including: a binder resin containing a crosslinked polymer of a photopolymerizable compound and a polysilsesquioxane substituted with one or more reactive functional groups; and inorganic fine particles dispersed in the binder resin, wherein a 10-point average roughness (Rz) of the shape of irregularities on the surface of the low refractive index layer is 0.05 ?m to 0.2 ?m.
    Type: Application
    Filed: March 9, 2017
    Publication date: January 3, 2019
    Applicant: LG CHEM, LTD.
    Inventors: Boo Kyung KIM, Yeong Rae CHANG, Jae Hoon SHIM, Jin Young PARK, Jae Pil KOO
  • Publication number: 20180313978
    Abstract: The present invention relates to an antireflection film comprising a hard coating layer in which a ten-point average roughness (Rz) of the surface irregularities is 0.05 ?m to 0.2 ?m and an internal haze is 0.5% to 5%; and a low refractive index layer formed on the hard coating layer, and a display device comprising the antireflection film.
    Type: Application
    Filed: September 12, 2016
    Publication date: November 1, 2018
    Inventors: Yeong Rae CHANG, Jae Hoon SHIM, Jung Hyun SEO, Jin Young PARK, Soo Kyoung LEE, Jae Pil KOO, Tae Soon KIM, Min Soo KIM, Kyung Ki HONG, Joo Jong MOON, Hye Min LEE
  • Publication number: 20180223113
    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: Application
    Filed: February 10, 2017
    Publication date: August 9, 2018
    Inventors: Jung Hyun SEO, Yeong Rae CHANG, Jae Hoon SHIM, Jin Young PARK, Jae Pil KOO, Boo Kyung KIM
  • Publication number: 20180179395
    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: Application
    Filed: February 10, 2017
    Publication date: June 28, 2018
    Inventors: Jung Hyun SEO, Boo Kyung KIM, Yeong Rae CHANG, Jae Hoon SHIM, Jin Young PARK, Jae Pil KOO
  • Patent number: 9738809
    Abstract: The present invention relates to a coating layer for an anti-glare film that can prevent glaring by reflection of external light on a surface of a display and an anti-glare film comprising the same. The coating layer for an anti-glare film according to an exemplary embodiment of the present invention comprises a binder resin, organic particulates, and inorganic particulates, and differences differences between refractive indexes of the binder resin and the organic particulates and between refractive indexes of the binder resin and inorganic particulates are each 0.3 or less. The coating layer for an anti-glare film according to an exemplary embodiment of the present invention can provide an anti-glare film having excellent anti-glare property, distinctness-of-image, and contrast, such that the coating layer can be applied to a display having high resolution, and has excellent scratch resistance in terms of a coating thickness of a thin film, such that it is easy to enlarge a polarizing plate.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: August 22, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Jae-Hoon Shim, Joon-Koo Kang, Jae-Pil Koo, Yeong-Rae Chang
  • Patent number: 9482789
    Abstract: The present invention relates to an anti-reflective coating film. This anti-reflective coating film shows more improved interface adhesion and scratch resistance, which can be manufactured by a simple process.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: November 1, 2016
    Assignee: LG CHEM, LTD.
    Inventors: Heon Kim, Yeong-Rae Chang, Joon-Koo Kang, Jae-Pil Koo
  • Patent number: 9051474
    Abstract: An exemplary embodiment of the present invention relates to an anti-glare coating composition and anti-glare coating film having excellent abrasion resistance and contamination resistance. The anti-glare coating composition according to the exemplary embodiment of the present invention comprises a) a binder resin; b) a fluorine-based UV curable functional group-containing compound; c) a photoinitiator; d) a surface curable photoinitiator; and e) a particulate of which a surface has an uneven pattern. In the case where a film is formed by using the anti-glare coating composition according to the exemplary embodiment of the present invention, it is possible to provide both abrasion resistance and contamination resistance by a single coating method, to maintain characteristics of abrasion resistance and contamination resistance when the film is rubbed, and to decrease and easily remove contamination by an oil component, such as a fingerprint mark.
    Type: Grant
    Filed: July 13, 2011
    Date of Patent: June 9, 2015
    Assignee: LG CHEM, LTD.
    Inventors: Soon Hwa Jung, Sung Su Kim, Young Jun Hong, Kyungki Hong, Yeongrae Chang, Soo Kyoung Lee, Joon Koo Kang, Sang Hyuk Im, Jae Pil Koo, Eun Sang Yoo
  • Patent number: 8940805
    Abstract: The present invention relates to an anti-glare coating composition for preparation of anti-glare films having good anti-fingerprint properties as well as improved contrast ratio and image definition. More specifically, the coating composition comprises organic or inorganic particles, a photocurable resin, a photoinitiator, and a compound including an olefin oxide repeating unit.
    Type: Grant
    Filed: January 14, 2014
    Date of Patent: January 27, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Jae-Hoon Shim, Seung-Jung Lee, Yeong Rae Chang, Jae-Pil Koo
  • Patent number: 8814370
    Abstract: The present invention relates to an anti-reflective coating composition that can be used to form at least two layers by a single coating process and is allowed to provide an anti-reflective coating film having more improved interface adhesion between the formed layers and scratch resistance, and an anti-reflective coating film manufactured using the same.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: August 26, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Heon Kim, Yeong-Rae Chang, Joon-Koo Kang, Jae-Pil Koo
  • Patent number: 8795825
    Abstract: The present invention relates to an anti-reflective coating film. This anti-reflective coating film shows more improved interface adhesion and scratch resistance, which can be manufactured by a simple process.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: August 5, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Heon Kim, Yeong-Rae Chang, Joon-Koo Kang, Jae-Pil Koo
  • Publication number: 20140133033
    Abstract: The present invention relates to an anti-glare coating composition for preparation of anti-glare films having good anti-fingerprint properties as well as improved contrast ratio and image definition. More specifically, the coating composition comprises organic or inorganic particles, a photocurable resin, a photoinitiator, and a compound including an olefin oxide repeating unit.
    Type: Application
    Filed: January 14, 2014
    Publication date: May 15, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Jae-Hoon SHIM, Seung-Jung LEE, Yeong Rae CHANG, Jae-Pil KOO
  • Publication number: 20140127465
    Abstract: The present invention relates to an anti-glare film with excellent anti-glare properties as well as improved contrast ratio and image definition and a preparation method for the same. More specifically, the anti-glare film comprises an anti-glare layer comprising organic or inorganic particles having a volume average particle diameter of 5 to 10 ?m and a photocurable resin. Here, the difference in refraction index between the organic or inorganic particles and the photocurable resin is in the range of 0.005 to 0.05, and the volume average particle diameter of the organic or inorganic particles and the thickness of the anti-glare layer satisfy a defined mathematical formula.
    Type: Application
    Filed: January 14, 2014
    Publication date: May 8, 2014
    Applicant: LG Chem, Ltd.
    Inventors: Jae-Hoon SHIM, Joon Koo KANG, Jae-Pil KOO, Ki-Uk LIM, Yeong Rae CHANG, Soo-Kyoung LEE, Joo-Jong MOON