Patents by Inventor Kil Sung Lee

Kil Sung 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).

  • Patent number: 9404024
    Abstract: An adhesive composition includes an acrylic copolymer having at least one alkyl group, at least one hydroxyl group, and at least one furyl based group; and a curing agent.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: August 2, 2016
    Assignee: CHEIL INDUSTRIES, INC.
    Inventors: Kyoung Jin Ha, Irina Nam, Lee Jun Kim, Kil Sung Lee, Eun Hwan Jeong, Woo Jin Jeong
  • Patent number: 9133367
    Abstract: An optically clear adhesive, a dicing die bonding film, and a semiconductor device, the optically clear adhesive including a curing agent; and an acrylic copolymer, the acrylic copolymer including an alkyl group, a hydroxyl group, and at least one of a phosphate group and a silane group.
    Type: Grant
    Filed: October 24, 2011
    Date of Patent: September 15, 2015
    Assignee: CHEIL INDUSTRIES, INC.
    Inventors: Kyoung Jin Ha, Baek Soung Park, Ji Ho Kim, Min Kyu Hwang, Kil Sung Lee
  • Patent number: 9086586
    Abstract: A liquid crystal display module includes a backlight unit, a liquid crystal display panel on a top surface of the backlight unit, and a thermoplastic layer on at least one lateral surface of the backlight unit and at least one lateral surface of the liquid crystal display panel, the thermoplastic layer including a solidified thermoplastic resin exhibiting viscosity of about 300 cps to about 1,000 cps at a temperature of about 120° C. to about 130° C.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: July 21, 2015
    Assignee: CHEIL INDUSTRIES, INC.
    Inventors: Kyoung Jin Ha, Ji Hye Kwon, Lee June Kim, Kil Sung Lee
  • Patent number: 9086526
    Abstract: A photocurable adhesive composition, a module apparatus, and a method of assembling a module, the composition including a urethane (meth)acrylate binder, the composition having a viscosity of about 3,000 to about 6,000 cps at 25° C., and providing an adhesive film having an adhesive strength of about 30 N/cm2 or more.
    Type: Grant
    Filed: December 23, 2011
    Date of Patent: July 21, 2015
    Assignee: CHEIL INDUSTRIES, INC.
    Inventors: Kyoung Jin Ha, Ji Hye Kwon, Kil Sung Lee, Irina Nam, Lee June Kim
  • Patent number: 9018304
    Abstract: An optical adhesive film prepared from an optical adhesive composition, an optical adhesive composition, and an apparatus, the optical adhesive composition including a urethane (meth)acrylate copolymer, a reactive monomer, and an initiator, wherein the optical adhesive film has a tensile strength of about 1 to about 70 gf/mm2 at a thickness of 500 ?m after curing.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: April 28, 2015
    Assignee: Cheil Industries, Inc.
    Inventors: Lee June Kim, Ji Hye Kwon, Kyoung Jin Ha, Kil Sung Lee
  • Patent number: 8957156
    Abstract: An optical adhesive film prepared from an optical adhesive composition, an optical adhesive composition, and a display panel, the optical adhesive film having an elongation of about 200 to about 800% and a tensile strength of about 10 gf/mm2 or less, and the optical adhesive composition including a urethane (meth)acrylate copolymer, a reactive monomer, and an initiator.
    Type: Grant
    Filed: December 27, 2011
    Date of Patent: February 17, 2015
    Assignee: Cheil Industries, Inc.
    Inventors: Lee June Kim, Ji Hye Kwon, Kyoung Jin Ha, Kil sung Lee
  • Publication number: 20140296443
    Abstract: An adhesive composition includes an acrylic copolymer having at least one alkyl group, at least one hydroxyl group, and at least one furyl based group; and a curing agent.
    Type: Application
    Filed: June 16, 2014
    Publication date: October 2, 2014
    Inventors: Kyoung Jin HA, Irina NAM, Lee Jun KIM, Kil Sung LEE, Eun Hwan JEONG, Woo Jin JEONG
  • Patent number: 8834670
    Abstract: An optical adhesive composition includes a urethane (meth)acrylate resin having at least one hydroxyl group and at least one vinyl group, the urethane (meth)acrylate resin having a curing contraction ratio expressed by Equation 1 of about 0 to about 3%; and an adhesion of about 30 to about 80 kgf: Curing contraction ratio (%)=(A?B)/A×100,??[Equation 1] where A is a specific gravity of the optical adhesive composition before curing, and B is a specific gravity of the solid optical adhesive composition after curing.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: September 16, 2014
    Assignee: Cheil Industries, Inc.
    Inventors: Kyoung Jin Ha, Ji Hye Kwon, Kil Sung Lee, Irina Nam, Lee June Kim
  • Patent number: 8754172
    Abstract: An adhesive composition includes an acrylic copolymer having at least one alkyl group, at least one hydroxyl group, and at least one furyl based group; and a curing agent.
    Type: Grant
    Filed: February 15, 2011
    Date of Patent: June 17, 2014
    Assignee: Cheil Industries, Inc.
    Inventors: Kyoung Jin Ha, Irina Nam, Lee Jun Kim, Kil Sung Lee, Eun Hwan Jeong, Woo Jin Jeong
  • Patent number: 8735025
    Abstract: Provided is a photosensitive resin composition that is developable with an aqueous alkaline solution and is suitable for the production of a color filter for an image sensor. The composition comprises an alkali-soluble resin, a photopolymerizable monomer, a photopolymerization initiator, colorants and a solvent. As the colorants, a pigment and a dye are used in combination. The use of the composition enables the formation of fine pixels that exhibit excellent color reproduction and contrast. Therefore, the composition can be used to produce a high-resolution color filter for an image sensor.
    Type: Grant
    Filed: December 27, 2007
    Date of Patent: May 27, 2014
    Assignee: Cheil Industries Inc.
    Inventors: Jae Hyun Kim, Kil Sung Lee, Eui June Jeong, Chang Min Lee, Sung Hyok Kim
  • Patent number: 8703367
    Abstract: A positive photosensitive resin composition includes: (A) a polybenzoxazole precursor; (B) a photosensitive diazoquinone compound; (C) a silane compound; (D) a polyamic acid ester compound; and (E) a solvent. The positive photosensitive resin composition can reduce film shrinkage, can have high sensitivity, high resolution, and excellent residue removal properties, and can provide good pattern shapes.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: April 22, 2014
    Assignee: Cheil Industries Inc.
    Inventors: Hyun-Yong Cho, Doo-Young Jung, Yong-Sik Yoo, Ji-Young Jeong, Jong-Hwa Lee, Min-Kook Chung, Kil-Sung Lee, Myoung-Hwan Cha
  • Patent number: 8628847
    Abstract: An adhesive binder, an adhesive composition including the same, an optical member, and associated methods, the adhesive binder including a (meth)acrylic copolymer having urethane, hydroxyl, aromatic, and vinyl groups in side chains thereof.
    Type: Grant
    Filed: December 28, 2010
    Date of Patent: January 14, 2014
    Assignee: Cheil Industries, Inc.
    Inventors: Kyoung Jin Ha, Kil Sung Lee, Mi Sun Kim, Irina Nam, Chang Min Lee
  • Patent number: 8568954
    Abstract: A positive photosensitive resin composition according to one embodiment of the present invention includes a polyamic acid or a polyamic acid ester compound including a repeating unit represented by Formula 1 defined in this specification, a photosensitive diazoquinone compound, a silane compound, a phenol compound, and a solvent. The positive photosensitive resin composition can be cured at a low temperature of 260° C. or less, and can have high sensitivity, resolution, residue removal, substrate adherence, and pattern-forming capabilities, and low film shrinkage.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: October 29, 2013
    Assignee: Cheil Industries Inc.
    Inventors: Doo-Young Jung, Ji-Young Jeong, Hyun-Yong Cho, Yong-Sik Yoo, Kil-Sung Lee, Myoung-Hwan Cha
  • Patent number: 8512921
    Abstract: The present invention related to a pigment dispersion composition, a color resist composition including the same, and a color filter fabricated by using the color resist composition. The pigment dispersion composition includes [A] a pigment, [B] a dispersing agent, [C] a cardo-based binder resin, and [D] a solvent.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: August 20, 2013
    Assignee: Cheil Industries Inc.
    Inventors: Chang-Min Lee, Jae-Hyun Kim, Eui-June Jeong, Kil-Sung Lee
  • Patent number: 8502334
    Abstract: Disclosed is an image sensor including a photo-sensing device, a color filter positioned on the photo-sensing device, a microlens positioned on the color filter, and an insulation layer positioned between the photo-sensing device and the color filter, and including a trench exposing the photo-sensing device and a filler filled in the trench. The filler has light transmittance of about 85% or more at a visible ray region, and a higher refractive index than the insulation layer. A method of manufacturing the image sensor is also provided.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: August 6, 2013
    Assignee: Cheil Industries Inc.
    Inventors: Kil-Sung Lee, Jae-Hyun Kim, Chang-Min Lee, Eui-June Jeong, Min-Soo Kim, Hwan-Sung Cheon, Tu-Won Chang
  • Patent number: 8497053
    Abstract: The present invention relates to a pigment dispersion composition that is capable of decreasing pattern residues and improving resolution, a resist composition for a color filter including the same, and a color filter fabricated using the same. More particularly, the pigment dispersion composition includes a pigment, a binder resin, a solvent, and a first dispersing agent and a second dispersing agent each represented by a predetermined chemical formula.
    Type: Grant
    Filed: March 11, 2010
    Date of Patent: July 30, 2013
    Assignee: Cheil Industries Inc.
    Inventors: Chang-Min Lee, Kil-Sung Lee, Jae-Hyun Kim, Eui-June Jeong
  • Patent number: 8486591
    Abstract: Disclosed is a color filter photosensitive resin composition that includes (A) an acryl-based binder resin having at least one carboxyl group, (B) an acryl-based photopolymerizable monomer, (C) a photopolymerization initiator, and (D) a solvent, where at least one of the acryl-based binder resin or the acryl-based photopolymerizable monomer includes a blue dye functional group. The color filter photosensitive resin composition can be prepared into a color filter having uniformity, almost no residue, and high resolution due to ultrafine pixels of 1.4 ?m or less.
    Type: Grant
    Filed: October 20, 2009
    Date of Patent: July 16, 2013
    Assignee: Cheil Industries Inc.
    Inventors: Eui-June Jeong, Kil-Sung Lee, Jae-Hyun Kim, Chang-Min Lee
  • Patent number: 8487030
    Abstract: Disclosed are an organic-inorganic hybrid composition including a fluorene-based monomer, an inorganic particle, an initiator, and a solvent, and an image sensor made using the same. The organic-inorganic hybrid composition can have a high refractive index and excellent transmittance to minimize light loss, and the image sensor produced using the same may transport a greater amount of light to a photodiode. Accordingly, it is possible to accomplish a high resolution image sensor having improved sensitivity.
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: July 16, 2013
    Assignee: Cheil Industries Inc.
    Inventors: Chang-Min Lee, Jae-Hyun Kim, Eui-June Jeong, Kil-Sung Lee
  • Publication number: 20130140545
    Abstract: A moisture absorption filling material for an organic light-emitting device may include a fibrous web structure including an assembly of fibers, the fibers including a binder resin and hygroscopic particles, the hygroscopic particles being secured into the fibers. A method of preparing a moisture absorption filling material for an organic light-emitting device may include electrospinning a mixture including about 10 wt % to about 60 wt % of hygroscopic particles and about 40 wt % to about 90 wt % of a binder.
    Type: Application
    Filed: January 29, 2013
    Publication date: June 6, 2013
    Inventors: Mi Sun KIM, Ji Yeon LEE, Kil Sung LEE, Min Haeng CHO, Kie Hyun NAM, Jung Woo MOON, Ji Sil LEE
  • Publication number: 20130140546
    Abstract: A hygroscopic filler for an organic EL getter, a method of manufacturing the same, and an organic EL device including the same, the hygroscopic filler including a sheet having pores; and a mixture of an organic binder and a hygroscopic material, the mixture being secured to the sheet.
    Type: Application
    Filed: January 29, 2013
    Publication date: June 6, 2013
    Inventors: Ji Yeon LEE, Mi Sun KIM, Kil Sung LEE, Min Haeng CHO, Kie Hyun NAM, Jung Woo MOON, Ji Sil LEE