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: 10732339
    Abstract: A display apparatus includes a display panel, a light guide plate disposed behind the display panel and configured to guide light to the display panel, a light source configured to irradiate light to at least one side of the light guide plate, a diffusion plate disposed between the display panel and the light guide plate, and at least one diffusion plate support member coupled to the light guide plate and configured to support the diffusion plate. The light guide plate includes an optical pattern arranged in a light emitting surface facing the diffusion plate and at least one insertion hole for receiving the at least one diffusion plate support member. The optical pattern includes a pattern change region which surrounds at least a portion of the insertion hole.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: August 4, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Duk-jin Jeon, Dae-young Kim, Hyung-ki Kim, Yong-sung Yoo, Kil-hong Lee, Tae-hee Jeon
  • Patent number: 10677978
    Abstract: A display device is provided, which includes a display panel, a light guide plate disposed in a rear of the display panel, a light source disposed adjacent to a light-incident surface of the light guide plate and configured to radiate light toward the light-incident surface of the light guide plate, and a holder disposed along a light-facing surface of the light guide plate, the light-facing surface of the light guide plate opposing the light-incident surface of the light guide plate, the holder including a supporting portion that supports a light-emitting surface of the light guide plate, the light-emitting surface of the light guide plate disposed between the light-incident surface and the light-facing surface, wherein the supporting portion of the holder has a first light reflecting surface that faces the light-facing surface of the light guide plate.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: June 9, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kil-hong Lee, Dae-young Kim, Hyung-ki Kim, Yong-sung Yoo, Duk-jin Jeon, Tae-hee Jeon
  • Publication number: 20200166194
    Abstract: A display apparatus includes: a display panel; a light source configured to supply light to the display panel; and a diffuser plate configured to diffuse the light supplied to the display panel. The diffuser plate includes: a first diffusion layer comprising a plurality of concave portions in a first surface of the first diffusion layer; a light converter provided in each concave portion of the plurality of concave portions; and a second diffusion layer configured to cover the first surface of the first diffusion layer.
    Type: Application
    Filed: November 22, 2019
    Publication date: May 28, 2020
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kil Hong Lee, Dae Young Kim, Hyung Ki Kim, Yong Sung Yoo, Duk Jin Jeon, Tae Hee Jeon
  • Patent number: 10649135
    Abstract: A display apparatus is provided. The display apparatus includes a display panel; a light guide plate configured to guide light to the display panel and disposed behind the display panel; a light source configured to emit light to a lateral surface of the light guide plate; a diffusion plate disposed between the display panel and the light guide plate; and at least one support member configured to support the diffusion plate and disposed to pass through the light guide plate, wherein a light transmittance of a portion of the at least one support member at a side of the support member facing the light source is different from a light transmittance of a remaining portion of the at least one support member.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: May 12, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyung-ki Kim, Dae-young Kim, Yong-sung Yoo, Kil-hong Lee, Duk-jin Jeon, Tae-hee Jeon
  • Publication number: 20200058727
    Abstract: An manufacturing method of a display device may include the following steps: forming a transistor on a substrate; forming an insulating layer on the transistor; forming a conductive layer including silver on the insulating layer; forming a photosensitive member on the conductive layer; forming an electrode of a light-emitting element by etching the conductive layer; performing plasma treatment on a structure that comprises the electrode, the plasma treatment using a gas including a halogen; and removing a product that is resulted from the plasma treatment.
    Type: Application
    Filed: July 24, 2019
    Publication date: February 20, 2020
    Inventors: Sang Gab KIM, Hyun Min CHO, Tae Sung KIM, Yu-Gwang JEONG, Su Bin BAE, Jin Seock KIM, Sang Gyun KIM, Hyo Min KO, Kil Won CHO, Han Sol LEE
  • Patent number: 10545282
    Abstract: A display includes a display panel for displaying an image; a backlight including a light guide plate disposed behind the display panel for outputting light to the display panel, and a light source that irradiates the light to a first side surface of the light guide plate; and a holder for supporting the display panel and the light guide plate and to have a concave portion that exposes at least a portion of a second side surface of the light guide plate positioned to be opposite to the first side surface of the light guide plate.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: January 28, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyung-ki Kim, Dae-young Kim, Yong-sung Yoo, Kil-hong Lee, Duk-jin Jeon, Tae-hee Jeon
  • 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