Patents by Inventor Hyunchul Choi

Hyunchul Choi 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: 20130198970
    Abstract: A method of controlling steam supply in a laundry machine. The control method includes heating a predetermined space within a duct in communication with a tub and/or drum of the laundry machine to a higher temperature than a temperature of the other space within the duct, directly supplying water to the heated predetermined space to generate steam, supplying air flow towards the heated predetermined space so as to supply the generated steam into the tub, and judging the amount of water supplied during the supply of water based on a temperature increase rate within the duct for a predetermined time.
    Type: Application
    Filed: February 4, 2013
    Publication date: August 8, 2013
    Inventors: Youngjin DOH, Hong NAMGOONG, Jihong LEE, Hyunchul CHOI, Kyuhwan LEE, Taewan KIM
  • Publication number: 20130198972
    Abstract: A method of controlling steam supply in a laundry machine. The control method includes heating a predetermined space within a duct in communication with a tub and/or drum of the laundry machine to a higher temperature than a temperature of the other space within the duct, directly supplying water to the heated predetermined space to generate steam, supplying air flow towards the heated predetermined space so as to transport the generated steam to the laundry, and adjusting an implementation time of the heating based on actual voltage of power supplied to the laundry machine.
    Type: Application
    Filed: February 5, 2013
    Publication date: August 8, 2013
    Inventors: Youngjin DOH, Hong NAMGOONG, Jihong LEE, Hyunchul CHOI, Kyuhwan LEE, Taewan KIM
  • Publication number: 20120249492
    Abstract: A liquid crystal display is provided. The liquid crystal display comprises: a liquid crystal display panel comprising data lines formed in a line direction, gate lines formed in a column direction intersecting the line direction, and a plurality of pixels disposed in a matrix form in a cell area defined by the data lines and the gate lines; a data driving circuit for supplying a data voltage to the data lines; and a gate driving circuit for sequentially supplying gate pulses to the gate lines, wherein each of the pixels comprises subpixels, and a length of a column direction of each of the subpixels is longer than that of a line direction of each of the subpixels, at least two subpixels of the subpixels share one gate line, and the at least two subpixels simultaneously charge a data voltage in response to a gate pulse from the one gate line.
    Type: Application
    Filed: November 10, 2011
    Publication date: October 4, 2012
    Inventors: Hongjae KIM, Hyunchul CHOI
  • Patent number: 7075613
    Abstract: A liquid crystal display device comprises two substrates facing and spaced from each other, at least one of the substrates being transparent; an electro-optical material filling a first portion of the space between the substrates, the electro-optical material comprising molecules whose spatial orientation can be altered by application of an electric field across the two substrates; and a polymeric material filling a second portion of the space between the substrates, the polymeric material having been polymerized in situ between the plates, wherein the polymeric material forms a multiplicity of microscopic polymer columns extending between the two substrates, and the columns provide both a structural bond between the two substrates for maintaining the spacing between the substrates and alignment of the molecules of the electro-optical material, with the alignment resulting from the close spacing of the microscopic columns.
    Type: Grant
    Filed: August 16, 2002
    Date of Patent: July 11, 2006
    Assignee: Kent State University
    Inventors: Satyendra Kumar, Bharat Raj Acharya, Hyunchul Choi
  • Publication number: 20040032561
    Abstract: A liquid crystal display device comprises two substrates facing and spaced from each other, at least one of the substrates being transparent; an electro-optical material filling a first portion of the space between the substrates, the electro-optical material comprising molecules whose spatial orientation can be altered by application of an electric field across the two substrates; and a polymeric material filling a second portion of the space between the substrates, the polymeric material having been polymerized in situ between the plates, wherein the polymeric material forms a multiplicity of microscopic polymer columns extending between the two substrates, and the columns provide both a structural bond between the two substrates for maintaining the spacing between the substrates and alignment of the molecules of the electro-optical material, with the alignment resulting from the close spacing of the microscopic columns.
    Type: Application
    Filed: August 16, 2002
    Publication date: February 19, 2004
    Inventors: Satyendra Kumar, Bharat Raj Acharya, Hyunchul Choi