Patents by Inventor Dong-Ki Lee

Dong-Ki 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: 10035139
    Abstract: The present invention discloses a method for improving solar energy conversion efficiency using metal oxide photocatalysts having an energy band of core-shell structure for ultraviolet (UV) ray and visible light absorption, comprising a first process of forming a nanoparticle thin film layer; a second process of preparing a core-shell metal oxide on metal oxide nanoparticles by a plasma reaction under a hydrogen and nitrogen gas atmosphere, and a third process of depositing a transition metal on surfaces of core-shell metal oxide nanoparticles to produce a photocatalyst for energy conversion. A great amount of oxygen vacancies is formed in a shell region by the core-shell metal oxide to achieve effects of improving transfer ability of electron-hole pairs excited by light, and extending a wavelength range of absorbable light to a visible light region by changing a band-gap structure.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: July 31, 2018
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Jeung Ku Kang, Dong Ki Lee, Gyu Heon Lee, Yong-Hoon Kim, Ji Ii Choi
  • Publication number: 20180138247
    Abstract: Embodiments of the present invention generally relate to a touch sensible organic light emitting device. The organic light emitting device according to an exemplary embodiment of the present invention comprises: a substrate; a thin film transistor disposed on the substrate; an organic light emitting element connected to the thin film transistor and receiving a data voltage; a plurality of encapsulation thin films disposed on the organic light emitting element, and encapsulating the thin film transistor and the organic light emitting element; a planarization layer disposed on the encapsulation thin film; and a touch sensor disposed on the planarization layer.
    Type: Application
    Filed: January 11, 2018
    Publication date: May 17, 2018
    Inventors: Dong-Ki LEE, Hoon-Kee MiN
  • Publication number: 20180127747
    Abstract: The present invention relates to a siRNA structure and the use thereof. More particularly, the invention relates to a double-stranded small interfering RNA molecule (siRNA molecule) comprising a 19-21 nucleotide (nt) antisense strand and a 15-19 nt sense strand having a sequence complementary to the antisense sequence, wherein the 5? end of the antisense strand has a blunt end and the 3? end of the antisense strand has an overhang, and to a method for silencing the expression of a target gene using the siRNA molecule.
    Type: Application
    Filed: August 16, 2017
    Publication date: May 10, 2018
    Inventors: Dong Ki Lee, Chan Il Chang
  • Publication number: 20180053815
    Abstract: A display device including a substrate, a source electrode and a drain electrode on the substrate, the source electrode and the drain electrode being spaced apart from each other, a first planarization layer on the source electrode and the drain electrode, a second planarization layer on the first planarization layer, and a first electrode on the second planarization layer. A step difference between a top of the first planarization layer and a top of the drain electrode is 100 ? or less.
    Type: Application
    Filed: June 22, 2017
    Publication date: February 22, 2018
    Inventors: Hyeon Bum LEE, Hyoeng Ki KIM, Kyong Heon LEE, Dong Ki LEE, Eon Joo LEE, Jin Whan JUNG
  • Publication number: 20170335326
    Abstract: The present invention relates to an RNAi-inducing nucleic acid molecule having a new structure and the use thereof, and more particularly to a novel nucleic acid molecule having a structure comprising a first strand, which is 24-121 nt in length and comprises a region complementary to a target nucleic acid, and a second strand which is 13-21 nt in length and has a region that binds complementarily to the region of the first strand, which is complementary to the target nucleic acid, so that the nucleic acid molecule inhibits the expression of a target gene with increased efficiency, and to a method of inhibiting the expression of a target gene using the nucleic acid molecule. The nucleic acid molecule structure of the present invention increases the efficiency with which the nucleic acid molecule inhibits the target gene.
    Type: Application
    Filed: March 30, 2017
    Publication date: November 23, 2017
    Inventor: Dong Ki Lee
  • Publication number: 20170317146
    Abstract: Embodiments of the present invention generally relate to a touch sensible organic light emitting device. The organic light emitting device according to an exemplary embodiment of the present invention comprises: a substrate; a thin film transistor disposed on the substrate; an organic light emitting element connected to the thin film transistor and receiving a data voltage; a plurality of encapsulation thin films disposed on the organic light emitting element, and encapsulating the thin film transistor and the organic light emitting element; a planarization layer disposed on the encapsulation thin film; and a touch sensor disposed on the planarization layer.
    Type: Application
    Filed: July 17, 2017
    Publication date: November 2, 2017
    Inventors: Dong-Ki LEE, Hoon-Kee MIN
  • Publication number: 20170298358
    Abstract: In certain aspects, provided herein are RNA complexes (e.g., asymmetric RNA complexes, such as asiRNAs or cell penetrating asiRNAs) that inhibit CTGF expression and are therefore useful for treating idiopathic pulmonary fibrosis.
    Type: Application
    Filed: April 10, 2017
    Publication date: October 19, 2017
    Inventors: Dong Ki Lee, Sun Woo Hong, Tae Yeon Lee, Sae Lo Oom Lee, Ji Hyun Kim, Yu Ran Na, Young-Dong Kim
  • Publication number: 20170218376
    Abstract: In certain aspects, provided herein are RNA complexes (e.g., asymmetric RNA complexes, such as asiRNAs or cell penetrating asiRNAs) that inhibit IL4R?, TRPA1, and/or F2RL1 expression and are therefore useful for treating atopic dermatitis or asthma.
    Type: Application
    Filed: February 1, 2017
    Publication date: August 3, 2017
    Inventors: Dong-Ki Lee, Sun Woo Hong, Hanna Lee, Dayeon Yu, Ji Eom
  • Publication number: 20170218374
    Abstract: In certain aspects, provided herein are RNA complexes (e.g., asymmetric RNA complexes, such as asiRNAs or cell penetrating asiRNAs) that inhibit ANGPT2 and/or PDGFB expression and are therefore useful for treating angiogenesis-associated diseases, such as cancer, AMD, and DME.
    Type: Application
    Filed: February 1, 2017
    Publication date: August 3, 2017
    Inventors: Dong-Ki Lee, Sun Woo Hong, Tae Yeon Lee, Sae-Lo-Oom Lee, Hanna Lee, Dayeon Yu, Ji Eom
  • Publication number: 20170207446
    Abstract: Provided is an electrode material for an energy storage device, which comprises a metal organic framework, wherein an element having an unshared electron pair is doped to the organic linker of the metal organic framework. The electrode material for an energy storage device comprises a metal organic framework in which an element having an unshared electron pair is doped to the organic linker. The non-shared electron pair of the element doped to the electrode material is bound to high-order polysulfide to prevent the polysulfide from being transferred to lithium metal, thereby providing a good effect upon cycle characteristics and thus improving the cycle characteristics of an energy storage device, such as a lithium-sulfur battery. As a result, the metal organic framework having nitrogen doped thereto improves the cycle characteristics of an energy storage device, such as a lithium-sulfur battery, as a cathode thereof.
    Type: Application
    Filed: March 3, 2016
    Publication date: July 20, 2017
    Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jeung Ku KANG, Jung Hyo PARK, Kyung Min CHOI, Dong Ki LEE, Byeong Cheul MOON, Sang Rim SHIN
  • Publication number: 20170207280
    Abstract: Embodiments of the present invention generally relate to a touch sensible organic light emitting device. The organic light emitting device according to an exemplary embodiment of the present invention comprises: a substrate; a thin film transistor disposed on the substrate; an organic light emitting element connected to the thin film transistor and receiving a data voltage; a plurality of encapsulation thin films disposed on the organic light emitting element, and encapsulating the thin film transistor and the organic light emitting element; a planarization layer disposed on the encapsulation thin film; and a touch sensor disposed on the planarization layer.
    Type: Application
    Filed: April 4, 2017
    Publication date: July 20, 2017
    Inventors: Dong-Ki LEE, Hoon-Kee MIN
  • Patent number: 9711570
    Abstract: Embodiments of the present invention generally relate to a touch sensible organic light emitting device. The organic light emitting device according to an exemplary embodiment of the present invention comprises: a substrate; a thin film transistor disposed on the substrate; an organic light emitting element connected to the thin film transistor and receiving a data voltage; a plurality of encapsulation thin films disposed on the organic light emitting element, and encapsulating the thin film transistor and the organic light emitting element; a planarization layer disposed on the encapsulation thin film; and a touch sensor disposed on the planarization layer.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: July 18, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong-Ki Lee, Hoon-Kee Min
  • Patent number: 9690423
    Abstract: Embodiments of the present invention generally relate to a touch sensible organic light emitting device. The organic light emitting device according to an exemplary embodiment of the present invention comprises: a substrate; a thin film transistor disposed on the substrate; an organic light emitting element connected to the thin film transistor and receiving a data voltage; a plurality of encapsulation thin films disposed on the organic light emitting element, and encapsulating the thin film transistor and the organic light emitting element; a planarization layer disposed on the encapsulation thin film; and a touch sensor disposed on the planarization layer.
    Type: Grant
    Filed: March 15, 2016
    Date of Patent: June 27, 2017
    Assignee: Samsung Display Co., LTD.
    Inventors: Dong-Ki Lee, Hoon-Kee Min
  • Publication number: 20170137828
    Abstract: In certain aspects, provided herein are RNA complexes that inhibit Myeloid differentiation primary response gene 88 (MyD88) and/or Toll-like receptor 3 (TLR3) and are useful in the treatment of age-related macular degeneration (AMD). In certain aspects, provided herein are pharmaceutical compositions comprising such RNA complexes and methods of using such RNA complexes and pharmaceutical compositions.
    Type: Application
    Filed: November 15, 2016
    Publication date: May 18, 2017
    Inventors: Dong Ki Lee, Sun Woo Hong, Isu Hong, Jihye Hwang
  • Patent number: 9637742
    Abstract: The present invention relates to an RNAi-inducing nucleic acid molecule having a new structure and the use thereof, and more particularly to a novel nucleic acid molecule having a structure comprising a first strand, which is 24-121 nt in length and comprises a region complementary to a target nucleic acid, and a second strand which is 13-21 nt in length and has a region that binds complementarily to the region of the first strand, which is complementary to the target nucleic acid, so that the nucleic acid molecule inhibits the expression of a target gene with increased efficiency, and to a method of inhibiting the expression of a target gene using the nucleic acid molecule. The nucleic acid molecule structure of the present invention increases the efficiency with which the nucleic acid molecule inhibits the target gene.
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: May 2, 2017
    Assignee: Sungkyunkwan University Foundation for Corporate Collaboration
    Inventor: Dong Ki Lee
  • Publication number: 20170014813
    Abstract: The present invention discloses a method for improving solar energy conversion efficiency using metal oxide photocatalysts having an energy band of core-shell structure for ultraviolet (UV) ray and visible light absorption, comprising a first process of forming a nanoparticle thin film layer; a second process of preparing a core-shell metal oxide on metal oxide nanoparticles by a plasma reaction under a hydrogen and nitrogen gas atmosphere, and a third process of depositing a transition metal on surfaces of core-shell metal oxide nanoparticles to produce a photocatalyst for energy conversion. A great amount of oxygen vacancies is formed in a shell region by the core-shell metal oxide to achieve effects of improving transfer ability of electron-hole pairs excited by light, and extending a wavelength range of absorbable light to a visible light region by changing a band-gap structure.
    Type: Application
    Filed: June 28, 2016
    Publication date: January 19, 2017
    Inventors: Jeung Ku KANG, Dong Ki LEE, Gyu Heon LEE, Yong-Hoon KIM, Ji Il CHOI
  • Publication number: 20160376716
    Abstract: Disclosed is a method for improving solar energy conversion efficiency of a metal oxide semiconductor photocatalyst, which includes rapidly performing hydrogenation and nitrogenation of a metal oxide semiconductor material through an H2/N2 mixed gas plasma treatment in a single process at room temperature, so as to enhance photocatalytic energy conversion efficiency. Specifically, disclosed is a treatment technique in which a plasma ball formed by controlling a mixing ratio of hydrogen gas to nitrogen gas in a range of 1:1 to 1:3 contacts with a surface of a metal oxide material, such that a great amount of oxygen vacancy and nitrogen elements are introduced in the surface of the metal oxide material to improve electron-hole pairs transfer ability thereof and decrease a size of the band-gap. A catalyst including the metal oxide material directly converts the solar energy into a compound by photocatalytic hydrogen generation and CO2 conversion.
    Type: Application
    Filed: October 28, 2015
    Publication date: December 29, 2016
    Inventors: Jeung Ku KANG, Dong Ki LEE, Gyu Heon LEE, Yong-Hoon KIM, Ji Il CHOI
  • Patent number: 9390684
    Abstract: A three-dimensional image display apparatus includes a display panel configured to display an image and including gate lines, data lines, and pixels connected to the gate lines and the data lines, a data driver configured to drive the data lines, a gate driver configured to drive the gate lines, a lens panel configured to refract light of the image displayed by the display panel, a lens driver configured to drive the lens panel, a lens controller configured to control the lens driver, and a timing controller configured to control the data driver, the gate driver, and the lens driver in response to an image signal and a control signal. The lens controller and the timing controller are mounted on the same control board.
    Type: Grant
    Filed: June 9, 2014
    Date of Patent: July 12, 2016
    Assignees: SAMSUNG DISPLAY CO., LTD., SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung Woo Lee, Il-Joo Kim, Jae-Hyun Park, Dong-Ki Lee, Jeesu Park
  • Publication number: 20160195997
    Abstract: Embodiments of the present invention generally relate to a touch sensible organic light emitting device. The organic light emitting device according to an exemplary embodiment of the present invention comprises: a substrate; a thin film transistor disposed on the substrate; an organic light emitting element connected to the thin film transistor and receiving a data voltage; a plurality of encapsulation thin films disposed on the organic light emitting element, and encapsulating the thin film transistor and the organic light emitting element; a planarization layer disposed on the encapsulation thin film; and a touch sensor disposed on the planarization layer.
    Type: Application
    Filed: March 15, 2016
    Publication date: July 7, 2016
    Inventors: Dong-Ki LEE, Hoon-Kee MIN
  • Publication number: 20160172120
    Abstract: Disclosed is an energy storage device based on metal oxide nanocrystals resealed through lithiation, and a supercapacitor using the same. The energy storage device is fabricated by dispersing transition metal nanoparticles over a carbon-based support with a large specific surface area, and then, dispersing and resealing the nanoparticles over the support using lithium ions with strong reductive ability, so that the resealed metal particles are substantially particles dispersed and resealed over the support as particles having a size of less than 1 nanometer on the scale of atomic units. The supercapacitor is fabricated using the energy storage device. The energy storage device higher capacitance than before resealing of metal oxide. Since the resealed metal particles are those having a size of less than 1 nanometer on the scale of atomic units, interference between particles disappears to exhibit excellent cycle life characteristics of 100% maintained performance in even more than 100,000 cycles.
    Type: Application
    Filed: June 29, 2015
    Publication date: June 16, 2016
    Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jeung-Ku KANG, Kyung-Min CHOI, Dong-Ki LEE, Il Woo OCK, Jung-Hyo PARK, Hyung-Mo JEONG