Patents by Inventor Ho-Cheol Kang

Ho-Cheol Kang 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: 20110291071
    Abstract: The present invention relates to a quantum dot light emitting diode device in which a hole transportation layer is formed after forming a quantum dot light emitting layer by a solution process by applying an inverted type quantum dot light emitting diode device for making free selection of a hole transportation layer material that enables easy injection of a hole to the quantum dot light emitting layer; and display device and method therewith.
    Type: Application
    Filed: May 25, 2011
    Publication date: December 1, 2011
    Inventors: Young-Mi Kim, Ho-Cheol Kang, Ho-Jin Kim, Chang-Hee Lee, Kook-Heon Char, Seong-Hoon Lee, Jeong-Hun Kwak, Wan-Ki Bae, Dong-Gu Lee, Jae-Hoon Lim
  • Publication number: 20110284819
    Abstract: The present invention relates to a quantum dot light emitting element which can form a quantum light emitting layer configured of charge transporting particles and quantum dots and a charge transporting layer in a solution process, to reduce process expense, and a method for manufacturing the same. The quantum dot light emitting element includes a substrate, an anode formed on the substrate, a quantum light emitting layer formed on the anode, the quantum light emitting layer having charge transporting particles and quantum dots mixed therein, and a cathode formed on the quantum light emitting layer.
    Type: Application
    Filed: May 20, 2011
    Publication date: November 24, 2011
    Inventors: Ho-Cheol Kang, Young-Hoon Noh, Chang-Hee Lee, Kook Heon Char, Seong-Hoon Lee, Jeong Hun Kwak, Wan Ki Bae, Jae Hoon Lim, Dong Gu Lee
  • Publication number: 20110249208
    Abstract: An electrostatic discharge protection element, a liquid crystal display device having the same, and a manufacturing method. A first ESD organic TFT, a second ESD organic TFT, a third ESD organic TFT each have a gate electrode, a source electrode and a drain electrode in which the source electrode and drain electrode of the first and second ESD organic TFTs and the gate electrode of the third ESD organic TFT are electrically connected. The gate electrode and the source electrode of the first ESD organic TFT are electrically connected to a first array line and the gate electrode and the drain electrode of the second ESD organic TFT are electrically connected to a second array line. The source electrode of the third ESD organic TFT is electrically connected to a data line or a gate line and the drain of the third ESD organic TFT are electrically connected to a common voltage line.
    Type: Application
    Filed: June 22, 2011
    Publication date: October 13, 2011
    Inventors: Min Joo Kim, Ho Cheol Kang, Kyo Seop Choo
  • Patent number: 7986382
    Abstract: An electrostatic discharge protection element, a liquid crystal display device having the same, and a manufacturing method. A first ESD organic TFT, a second ESD organic TFT, a third ESD organic TFT each have a gate electrode, a source electrode and a drain electrode in which the source electrode and drain electrode of the first and second ESD organic TFTs and the gate electrode of the third ESD organic TFT are electrically connected. The gate electrode and the source electrode of the first ESD organic TFT are electrically connected to a first array line and the gate electrode and the drain electrode of the second ESD organic TFT are electrically connected to a second array line. The source electrode of the third ESD organic TFT is electrically connected to a data line or a gate line and the drain of the third ESD organic TFT are electrically connected to a common voltage line.
    Type: Grant
    Filed: December 2, 2010
    Date of Patent: July 26, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Min Joo Kim, Ho Cheol Kang, Kyo Seop Choo
  • Publication number: 20110069265
    Abstract: An electrostatic discharge protection element, a liquid crystal display device having the same, and a manufacturing method. A first ESD organic TFT, a second ESD organic TFT, a third ESD organic TFT each have a gate electrode, a source electrode and a drain electrode in which the source electrode and drain electrode of the first and second ESD organic TFTs and the gate electrode of the third ESD organic TFT are electrically connected. The gate electrode and the source electrode of the first ESD organic TFT are electrically connected to a first array line and the gate electrode and the drain electrode of the second ESD organic TFT are electrically connected to a second array line. The source electrode of the third ESD organic TFT is electrically connected to a data line or a gate line and the drain of the third ESD organic TFT are electrically connected to a common voltage line.
    Type: Application
    Filed: December 2, 2010
    Publication date: March 24, 2011
    Inventors: Min Joo Kim, Ho Cheol Kang, Kyo Seop Choo
  • Publication number: 20110006290
    Abstract: An array substrate for a display device, including a substrate having a pixel region and a switching region, a source electrode and a drain electrode on the switching region of the substrate, ends of the source and drain electrodes having tapered edges, a pixel electrode in the pixel region of the substrate, the pixel electrode being connected to the drain electrode, an organic semiconductor layer on the source and drain electrodes, the organic semiconductor layer completely contacting tapered edges and a top surface of each of the source and drain electrodes, a first insulating layer on the organic semiconductor layer, and a gate electrode on the first insulating layer.
    Type: Application
    Filed: July 6, 2010
    Publication date: January 13, 2011
    Inventors: Young-Hoon NOH, Ho-Cheol Kang
  • Patent number: 7864254
    Abstract: An electrostatic discharge protection element, a liquid crystal display device having the same, and a manufacturing method. A first ESD organic TFT, a second ESD organic TFT, a third ESD organic TFT each have a gate electrode, a source electrode and a drain electrode in which the source electrode and drain electrode of the first and second ESD organic TFTs and the gate electrode of the third ESD organic TFT are electrically connected. The gate electrode and the source electrode of the first ESD organic TFT are electrically connected to a first array line and the gate electrode and the drain electrode of the second ESD organic TFT are electrically connected to a second array line. The source electrode of the third ESD organic TFT is electrically connected to a data line or a gate line and the drain of the third ESD organic TFT are electrically connected to a common voltage line.
    Type: Grant
    Filed: June 26, 2007
    Date of Patent: January 4, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Min Joo Kim, Ho Cheol Kang, Kyo Seop Choo
  • Publication number: 20100127249
    Abstract: An electrophoretic display device includes: a first substrate having a plurality of pixels formed in a plurality of vertical pixel rows and a plurality of horizontal pixel rows; a plurality of data lines formed at every vertical pixel row of the first substrate; a thin film transistor (TFT) formed at each pixel of the first substrate and including a source electrode, a drain electrode, an organic semiconductor layer, and a gate electrode; a passivation layer formed on the TFTs and the data lines of the first substrate and including a first contact hole exposing the drain electrode of the TFT and a second contact hole exposing the gate electrode of the TFT; a pixel electrode formed on the passivation layer at each pixel of the first substrate and connected with the drain electrode of the TFT via the first contact hole of the passivation layer; a plurality of gate lines formed on the passivation layer at every horizontal pixel row of the first substrate and connected with the gate electrode of the TFT via the s
    Type: Application
    Filed: November 13, 2009
    Publication date: May 27, 2010
    Inventors: Min-Joo Kim, Ho-Cheol KANG, Dae-Won KIM, Young-Hoon NOH, Han-Saem KANG
  • Patent number: 7646443
    Abstract: An array substrate for a liquid crystal display device includes a first source electrode and a first drain electrode on a substrate, wherein the first source electrode and the first drain electrode are separated from each other and formed of a metallic material, a second source electrode and a second drain electrode on the first source electrode and the first drain electrode, respectively, and are formed of a transparent conductive material, wherein the second source electrode covers an upper surface of the first source electrode, and the second drain electrode covers an upper surface of the first drain electrode, a pixel electrode on the substrate and contacting the second drain electrode on the substrate, an organic semiconductor layer on the substrate, a gate insulating layer on the organic semiconductor layer, and a gate electrode on the gate insulating layer.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: January 12, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Nack-Bong Choi, Ho-Cheol Kang, Dae-Won Kim
  • Publication number: 20080136986
    Abstract: An electrostatic discharge protection element, a liquid crystal display device having the same, and a manufacturing method. A first ESD organic TFT, a second ESD organic TFT, a third ESD organic TFT each have a gate electrode, a source electrode and a drain electrode in which the source electrode and drain electrode of the first and second ESD organic TFTs and the gate electrode of the third ESD organic TFT are electrically connected. The gate electrode and the source electrode of the first ESD organic TFT are electrically connected to a first array line and the gate electrode and the drain electrode of the second ESD organic TFT are electrically connected to a second array line. The source electrode of the third ESD organic TFT is electrically connected to a data line or a gate line and the drain of the third ESD organic TFT are electrically connected to a common voltage line.
    Type: Application
    Filed: June 26, 2007
    Publication date: June 12, 2008
    Inventors: Min Joo Kim, Ho Cheol Kang, Kyo Seop Choo
  • Publication number: 20070290229
    Abstract: An array substrate for a liquid crystal display device includes a first source electrode and a first drain electrode on a substrate, wherein the first source electrode and the first drain electrode are separated from each other and formed of a metallic material, a second source electrode and a second drain electrode on the first source electrode and the first drain electrode, respectively, and are formed of a transparent conductive material, wherein the second source electrode covers an upper surface of the first source electrode, and the second drain electrode covers an upper surface of the first drain electrode, a pixel electrode on the substrate and contacting the second drain electrode on the substrate, an organic semiconductor layer on the substrate, a gate insulating layer on the organic semiconductor layer, and a gate electrode on the gate insulating layer.
    Type: Application
    Filed: December 15, 2006
    Publication date: December 20, 2007
    Applicant: LG.PHILIPS LCD CO., LTD.
    Inventors: Nack-Bong Choi, Ho-Cheol Kang, Dae-Won Kim
  • Patent number: 6392064
    Abstract: The present invention relates to a method of synthesizing glycidyl ether compounds without the addition of solvent. In particular, the present invention provides the improved preparation of the glycidyl ethers by using fatty alcohols with epichlorohydrin in the presence of alkali metal hydroxide and phase-transfer catalysts in the appropriate molar ratios of them without water and organic solvents.
    Type: Grant
    Filed: March 29, 2001
    Date of Patent: May 21, 2002
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Byung Min Lee, Ho-Cheol Kang, Jong-mok Park, Jung Ho Yoon
  • Publication number: 20020004605
    Abstract: The present invention relates to a method of synthesizing glycidyl ether compounds without the addition of solvent. In particular, the present invention provides the improved preparation of the glycidyl ethers by using fatty alcohols with epichlorohydrin in the presence of alkali metal hydroxide and phase-transfer catalysts in the appropriate molar ratios of them without water and organic solvents.
    Type: Application
    Filed: March 29, 2001
    Publication date: January 10, 2002
    Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
    Inventors: Byung Min Lee, Ho-Cheol Kang, Jong-mok Park, Jung Ho Yoon
  • Patent number: 5982671
    Abstract: The present invention discloses a flash memory array in which four memory cells formed on a silicon substrate having a double well structure hold a source region or a drain region in common so that the area occupied by contact holes can be minimized and integration of device can be enhanced.
    Type: Grant
    Filed: December 24, 1997
    Date of Patent: November 9, 1999
    Assignee: Hyundai Electronics Industries Co., Ltd.
    Inventors: Ho Cheol Kang, Jong Oh Kim
  • Patent number: 5787035
    Abstract: The present invention relates to memory cell array, each floating gate of each memory cell is placed between each drain region and each source region so that four memory cells hold single source region or single drain region in common.
    Type: Grant
    Filed: August 29, 1997
    Date of Patent: July 28, 1998
    Assignee: Hyundai Electronics Industries Co., Ltd.
    Inventors: Ho Cheol Kang, Jong Ho Kim