Patents by Inventor Han-Na Lee

Han-Na Lee 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: 20200257021
    Abstract: The present invention relates to a visibility improving film for a display panel and a display device including the same. More specifically, the present invention 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 including fine metal particles dispersed in the photocurable resin layer, and to a display device including the same.
    Type: Application
    Filed: September 28, 2018
    Publication date: August 13, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Kwangseok SEO, Han Na LEE, Yeong Rae CHANG, Jin Seok BYUN, Yun U SHIN
  • Publication number: 20200041696
    Abstract: The present invention relates to an optical film exhibiting excellent optical properties such as low gloss value and reflectance, and an appropriate level of haze properties, and to an image display device including the same. The optical film comprises: a light-transmitting substrate film; an antiglare layer including a binder containing a (meth)acrylate-based crosslinked polymer, and organic fine particles of a micron (?m) scale dispersed on the binder and inorganic fine particles of a nanometer (nm) scale dispersed on the binder; and a low refractive index layer which is formed on the antiglare layer and includes a binder resin containing a (co)polymer of a photopolymerizable compound, and hollow silica particles dispersed in the binder resin, wherein the organic and inorganic fine particles exhibit a predetermined particle size distribution, refractive index difference, and content range.
    Type: Application
    Filed: December 12, 2017
    Publication date: February 6, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Jung Hyun SEO, Yeong Rae CHANG, Jin Young PARK, Han Na LEE
  • Patent number: 10550237
    Abstract: A plastic film including a supporting substrate, a first coating layer which is formed on one side of the supporting substrate, and a second coating layer which is formed on another side of the supporting substrate, and a method for preparing the plastic film. More specifically, the plastic film has high hardness. According to the plastic film of the present invention and the preparation method thereof, it is possible to prepare a plastic film of high hardness which is less prone to curling easily.
    Type: Grant
    Filed: November 24, 2014
    Date of Patent: February 4, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Jin Young Park, Soon Hwa Jung, Han Na Lee, Yeong Rae Chang, Joon Koo Kang, Hyeok Jeong, Eun Kyu Her
  • Patent number: 10508183
    Abstract: The present invention relates to a plastic film and a method for manufacturing same. A plastic film, which is formed such that at least one part has a curved shape, can have high hardness, impact resistance, scratch resistance and high transparency. The plastic film is light and will not be easily damaged by external pressure and thus can substitute for the existing glass and is expected to be used for various electronic products such as a display and the like. In particular, the plastic film has at least one part in a curved shape and thereby is expected to be used for products in various shapes which cannot be manufactured by means of the existing glass. Moreover, a method for manufacturing a plastic film enables manufacturing of a plastic film having at least one part in a curved shape without curls or cracks as well as simultaneous performing of heat molding and heat curing, thereby increasing the productivity of a plastic film.
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: December 17, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Han Na Lee, Young Suk Kim, Yeong Rae Chang, Heon Kim, Soon Hwa Jung, Jin Seok Byun
  • Patent number: 10465098
    Abstract: The present invention provides an optical adhesive sheet including a layered structure of a first adhesive layer and a second adhesive layer, in which the first adhesive layer has a glass transition temperature of ?50° C. to ?30° C. and a modulus of 0.3×105 Pa to about 0.6×105 Pa, and the second adhesive layer has a glass transition temperature of ?20° C. to ?10° C. and a modulus of 0.7×105 Pa to 1.0×105 Pa.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: November 5, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Joo-Hyun Lee, Jang-Soon Kim, Bu-Gi Jung, Sang-Hwan Kim, Sung-Chan Park, Chan-Oh Yoon, Han-Na Lee
  • Publication number: 20190317255
    Abstract: The present invention relates to an optical film including a light-transmitting substrate film such as a polyester-based substrate film and an antiglare layer, and more specifically, to an optical film capable of effectively suppressing the occurrence of interference fringes derived from the substrate film, realizing excellent antiglare properties, and having excellent scratch resistance, and excellent adhesion between the substrate film and the antiglare layer, and the like, and to an image display device including the same.
    Type: Application
    Filed: December 12, 2017
    Publication date: October 17, 2019
    Applicant: LG CHEM, LTD.
    Inventors: Jung Hyun SEO, Yeong Rae CHANG, Jin Young PARK, Han Na LEE
  • Publication number: 20190310546
    Abstract: Provided are a decoration sheet and a method for producing same, the decoration sheet sequentially comprising a thermosetting resin layer, a deposition layer, and a base layer, wherein the thermosetting resin layer has a micropattern on a surface thereof, and the elongation rate of the sheet is 200% to 300%.
    Type: Application
    Filed: October 31, 2017
    Publication date: October 10, 2019
    Inventors: Geo-Hyeok LIM, Seung-Hun LEE, Ji-Yong PARK, Han-Na LEE
  • Publication number: 20190285778
    Abstract: The present invention relates to a polarizer protective film comprising a cured resin and exhibiting high hardness and excellent properties.
    Type: Application
    Filed: June 5, 2019
    Publication date: September 19, 2019
    Applicant: LG CHEM, LTD.
    Inventors: Hye Min KIM, Yeong Rae CHANG, Han Na LEE
  • Publication number: 20190285777
    Abstract: The present invention relates to a resin composition for a polarizer protective film, and, more specifically, to a resin composition for a polarizer protective film exhibiting high hardness and excellent properties.
    Type: Application
    Filed: June 5, 2019
    Publication date: September 19, 2019
    Applicant: LG CHEM, LTD.
    Inventors: Hye Min KIM, Yeong Rae CHANG, Han Na LEE
  • Patent number: 10414840
    Abstract: The present invention relates to a curable composition for a glass substitute. By using a curable composition, excellent wear resistance and high hardness at a glass level can be obtained, and two-dimensional planar plastic film and three-dimensional plastic film without cracks or curls can be provided. The plastic films can be a substitute for existing glass, thereby enabling manufacturing of various electronic products, such as a display and the like, which are light and will not be easily damaged by external pressure.
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: September 17, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Han Na Lee, Heon Kim, Yeong Rae Chang, Soon Hwa Jung, Jin Seok Byun
  • Patent number: 10400110
    Abstract: The present invention relates to a composition for forming a self-healing coating layer, comprising a reversible covalent compound containing a (thio)urea functional group comprising one or more sterically hindered thio(urea) bonds and a (meth)acrylate-based or vinyl-based functional group bonded to the (thio)urea functional group; a photoinitiator; and an organic solvent, a coating film prepared from the composition, a coating film comprising the coating film, and home electronics and display devices comprising the coating film.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: September 3, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Young Suk Kim, Han Na Lee, Yeong Rae Chang
  • Publication number: 20190225831
    Abstract: The present invention relates to a resin composition for forming an optical film, an optical film, and a polarizing plate, in which the resin composition for forming an optical film improves adhesion between an antiglare layer and a light-transmitting substrate film and enables the antiglare layer and the optical film to exhibit excellent optical properties such as appropriate haze, low gloss value, and excellent antiglare properties.
    Type: Application
    Filed: December 18, 2017
    Publication date: July 25, 2019
    Applicant: LG CHEM, LTD.
    Inventors: Jung Hyun SEO, Yeong Rae CHANG, Jin Young PARK, Han Na LEE
  • Patent number: 10344193
    Abstract: The present invention provides a vacuum thermoforming adhesive composition containing a polyurethane polymer and an acrylic polymer and having a difference in melting temperature and cross-linking temperature of 30-60° C. In addition, provided is a vacuum thermoforming decoration sheet comprising: an adhesive layer, a substrate layer formed on the adhesive layer; a printing layer formed on the substrate layer, and a transparent substrate layer formed on the printing layer, wherein the adhesive layer is formed from the defroster vacuum thermoforming adhesive composition.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: July 9, 2019
    Assignee: LG HAUSYS, LTD.
    Inventors: Ji-Yong Park, Byung-Hyun Roh, Han-Na Lee
  • Patent number: 10330829
    Abstract: The present invention relates to a resin composition for a polarizer protective film, a polarizer protective film, a polarizing plate including the same, and a preparation method of a polarizing plate, and, more specifically, to a resin composition for a polarizer protective film and a polarizer protective film exhibiting high hardness and excellent properties, a polarizing plate including the same, and a preparation method of a polarizing plate. According to the polarizing plate of the present invention, it can be usefully utilized in various fields because of its excellent hardness, flexibility, and optical properties.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: June 25, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Hye Min Kim, Yeong Rae Chang, Han Na Lee
  • Publication number: 20190129071
    Abstract: The present disclosure relates to a polarizer protecting film, a polarizing plate including the same, a liquid crystal display including the polarizing plate, and a coating composition for polarizer protecting film. More specifically, it relates to a coating composition capable of producing a polarizer protecting film exhibiting excellent physical and optical characteristics while absorbing and emitting light in a specific wavelength range to enhance visibility of a laser pointer, a polarizer protecting film produced by using the same, a polarizing plate including the polarizer protecting film, and a liquid crystal display including the polarizing plate.
    Type: Application
    Filed: December 26, 2017
    Publication date: May 2, 2019
    Inventors: Han Na LEE, Yeong Rae CHANG
  • Publication number: 20180373096
    Abstract: The present disclosure relates to a wide color gamut film, a composition for preparing the same, a polarizing plate including the same, and a liquid crystal display including the polarizing plate. More specifically, the present disclosure relates to a wide color gamut film capable of improving color gamut by increasing color purity and exhibiting excellent physical and optical characteristics, a composition for preparing the same, a polarizing plate including the same, and a liquid crystal display including the polarizing plate.
    Type: Application
    Filed: July 6, 2016
    Publication date: December 27, 2018
    Inventors: Han Na LEE, Byung Min LEE, Kyung Ki HONG, Yeong Rae CHANG, Dong Hwan RYU
  • Publication number: 20180051195
    Abstract: The present invention provides a vacuum thermoforming adhesive composition containing a polyurethane polymer and an acrylic polymer and having a difference in melting temperature and cross-linking temperature of 30-60° C. In addition, provided is a vacuum thermoforming decoration sheet comprising: an adhesive layer, a substrate layer formed on the adhesive layer; a printing layer formed on the substrate layer, and a transparent substrate layer formed on the printing layer, wherein the adhesive layer is formed from the defroster vacuum thermoforming adhesive composition.
    Type: Application
    Filed: February 19, 2016
    Publication date: February 22, 2018
    Inventors: Ji-Yong PARK, Byung-Hyun ROH, Han-Na LEE
  • Publication number: 20180009993
    Abstract: The present invention relates to a composition for forming a self-healing coating layer, comprising a reversible covalent compound containing a (thio)urea functional group comprising one or more sterically hindered thio(urea) bonds and a (meth)acrylate-based or vinyl-based functional group bonded to the (thio)urea functional group; a photoinitiator; and an organic solvent, a coating film prepared from the composition, a coating film comprising the coating film, and home electronics and display devices comprising the coating film.
    Type: Application
    Filed: February 3, 2016
    Publication date: January 11, 2018
    Inventors: Young Suk KIM, Han Na LEE, Yeong Rae CHANG
  • Publication number: 20180002463
    Abstract: The present invention relates to a coating composition and a coating film prepared therefrom, and more particularly, to a coating composition for preparing a coating film exhibiting more improved mechanical and optical properties together with self-healing properties and impact resistance; and to a coating film prepared therefrom.
    Type: Application
    Filed: February 3, 2016
    Publication date: January 4, 2018
    Inventors: Han Na LEE, Young Suk KIM, Yeong Rae CHANG
  • Publication number: 20170283527
    Abstract: The present invention relates to a curable composition for a glass substitute. By using a curable composition, excellent wear resistance and high hardness at a glass level can be obtained, and two-dimensional planar plastic film and three-dimensional plastic film without cracks or curls can be provided. The plastic films can be a substitute for existing glass, thereby enabling manufacturing of various electronic products, such as a display and the like, which are light and will not be easily damaged by external pressure.
    Type: Application
    Filed: September 16, 2015
    Publication date: October 5, 2017
    Inventors: Han Na LEE, Heon KIM, Yeong Rae CHANG, Soon Hwa JUNG, Jin Seok BYUN