Patents by Inventor Hyun-Cheol Jin

Hyun-Cheol Jin 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: 9419387
    Abstract: A plug for a DC appliance includes an input unit including anode and cathode terminals, an output unit including anode and cathode terminals to allow a DC current input through the input unit to be output to an electric device, a connection unit to interconnect the input unit and the output unit, a rectifier unit coupled between anode and cathode terminals of the input unit to rectify the input DC current, an inductor unit connected in series to the rectifier unit so that an internal current of the plug is gradually increased in response to an increase of the input DC current, and a condenser unit connected in series to the inductor unit, which is charged with voltage in response to a current passing through the inductor unit, and discharges the charged voltage to the output unit when the input of the DC current from the input unit is interrupted.
    Type: Grant
    Filed: January 11, 2012
    Date of Patent: August 16, 2016
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SUNGKYUNKWAN UNIVERSITY
    Inventors: Hyun Cheol Jin, Han Sol Seo, Hyun Soo Park, Byoung Kuk Lee, Joon Young Jeon
  • Patent number: 9081395
    Abstract: A direct current (DC) power supply apparatus includes an input unit configured to receive an outside DC power; a plurality of polarity correction units configured to correct the polarity of the outside DC power; a plurality of switch units installed to correspond to each of the plurality of polarity correction units; a detection unit configured to detect a flow of current of the plurality of polarity correction unit; and a control unit configured to determine a polarity correction unit, at which current of DC power flows, among the plurality of correction units based on a detection signal of transmitted from the detection unit, and control the switch unit corresponding to the determined polarity correction unit at an ON position such that the current of DC power flows through the switch unit which is controlled at the ON position.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: July 14, 2015
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SUNGKYUNKWAN UNIVERSITY RESEARCH & BUSINESS FOUNDATION
    Inventors: Hyun Cheol Jin, Sun Jin Kim, Han Sol Seo, Seung Min Shin, Byoung Kuk Lee, Joon Young Jeon
  • Patent number: 9041382
    Abstract: A power-supply circuit for a DC appliance includes an input unit including a first terminal and a second terminal so as to receive a DC current, an output unit including a third terminal to output the DC current entered by the input unit and a fourth terminal, a connection unit including a first conductive line and a second conductive line so as to interconnect the input unit and the output unit, a rectifier unit including first to fourth diodes coupled as a bridge diode format so as to rectify the input DC current in a predetermined direction, an inductor unit that is connected in series to the rectifier unit in such a manner that the input DC current is gradually increased from an abrupt change time point of the DC current, and a condenser unit that is connected in series to the inductor unit.
    Type: Grant
    Filed: January 26, 2012
    Date of Patent: May 26, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyun Cheol Jin, Han Sol Seo, Hyun Soo Park
  • Patent number: 9030637
    Abstract: A method for fabricating an in-plane switching (IPS) type liquid crystal display (LCD) device according to an embodiment includes forming gate lines arranged in a first direction and data lines arranged in a second direction substantially perpendicular to the first direction, the gate lines and the data lines defining pixel regions on an array substrate; forming a storage electrode on the array substrate; forming common electrodes extending across each pixel region; forming pixel electrodes arranged to be substantially parallel to the common electrodes, the common electrodes and the pixel electrodes being alternately arranged to generate an in-plane field in each pixel region; and forming thin film transistors (TFTs) at intersection areas of the gate lines and the data lines, each TFT including a source electrode connected to the corresponding data line, a drain electrode connected to the corresponding pixel electrode and a gate electrode.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: May 12, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Jae-Young Oh, Joon-Youp Lee, Hyun-Cheol Jin, Min-Jic Lee
  • Patent number: 8378354
    Abstract: A liquid crystal display panel where pixel cells defined by gate lines and data lines which are located to cross each other are arranged in a matrix shape, wherein each of the pixel cells includes a thin film transistor located at a crossing of the gate line and the data line, a pixel electrode connected to the thin film transistor, and a protrusion that overlaps a gate electrode of the thin film transistor to form a parasitic capacitor with the gate electrode and is connected to the pixel electrode, wherein each protrusion in the pixel cells of the liquid crystal display panel have an area determined in accordance with a location of the pixel cell in the liquid crystal display panel.
    Type: Grant
    Filed: June 26, 2006
    Date of Patent: February 19, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Chang Ho Oh, Hyun Cheol Jin, Jin Young Park, Young Mi Tak
  • Patent number: 8319903
    Abstract: An in-plane switching mode liquid crystal display according to an embodiment includes gate lines arranged in a first direction on an array substrate, data lines arranged in a second direction substantially perpendicular to the first direction, one or more storage electrodes provided on the array substrate, common electrodes extending across each pixel region, pixel electrodes arranged to be substantially parallel to the common electrodes, the common electrodes and the pixel electrodes being alternately arranged to generate an in-plane field in each pixel region, thin film transistors (TFTs) provided at intersection areas of the gate lines and the data lines, each TFT including a source electrode connected to the corresponding data line, a drain electrode connected to the corresponding pixel electrode and a gate electrode, and at least one common line located under the respective common electrode in the pixel region, the common line being substantially parallel to the data lines.
    Type: Grant
    Filed: October 8, 2008
    Date of Patent: November 27, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Jae-Young Oh, Joon-Youp Lee, Hyun-Cheol Jin, Min-Jic Lee
  • Publication number: 20120200280
    Abstract: A plug for a DC appliance includes an input unit including anode and cathode terminals, an output unit including anode and cathode terminals to allow a DC current input through the input unit to be output to an electric device, a connection unit to interconnect the input unit and the output unit, a rectifier unit coupled between anode and cathode terminals of the input unit to rectify the input DC current, an inductor unit connected in series to the rectifier unit so that an internal current of the plug is gradually increased in response to an increase of the input DC current, and a condenser unit connected in series to the inductor unit, which is charged with voltage in response to a current passing through the inductor unit, and discharges the charged voltage to the output unit when the input of the DC current from the input unit is interrupted.
    Type: Application
    Filed: January 11, 2012
    Publication date: August 9, 2012
    Applicants: SUNGKYUNKWAN UNIVERSITY OF, SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyun Cheol Jin, Han Sol Seo, Hyun Soo Park, Byoung Kuk Lee, Joon Young Jeon
  • Publication number: 20120201051
    Abstract: A power-supply circuit for a DC appliance includes an input unit including a first terminal and a second terminal so as to receive a DC current, an output unit including a third terminal to output the DC current entered by the input unit and a fourth terminal, a connection unit including a first conductive line and a second conductive line so as to interconnect the input unit and the output unit, a rectifier unit including first to fourth diodes coupled as a bridge diode format so as to rectify the input DC current in a predetermined direction, an inductor unit that is connected in series to the rectifier unit in such a manner that the input DC current is gradually increased from an abrupt change time point of the DC current, and a condenser unit that is connected in series to the inductor unit.
    Type: Application
    Filed: January 26, 2012
    Publication date: August 9, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyun Cheol JIN, Han Soi SEO, Hyun Soo PARK
  • Publication number: 20110157527
    Abstract: A liquid crystal display device capable of preventing light leakage and vertical crosstalk thereof is disclosed. The liquid crystal display device includes a first substrate in which a pixel region and a data line region next to the pixel region are defined, a data line formed on the data line region of the first substrate with a first insulating film interposed therebetween, two outermost common electrodes of the adjacent two pixels spaced apart from opposite edges of the data line, a shield layer having two segments, each segment has one side of which overlaps an edge of the data line by a width of 0 ?m or more to 2 ?m or less and the other side of which overlaps an edge of one of the two outermost common electrodes with the first insulating film interposed therebetween, and a second substrate bonded opposite to the first substrate.
    Type: Application
    Filed: November 15, 2010
    Publication date: June 30, 2011
    Inventors: Young-Jik JO, Hyun-Cheol JIN, Tae-Gyun KIM, Sang-Wook LEE, Chang-Seung WOO, Da-Hye SHIM
  • Patent number: 7663710
    Abstract: A liquid crystal display device of horizontal electric field type and a fabricating method thereof is provided. The liquid crystal display device includes a plurality of gate lines. Data lines cross in such a manner to insulate with the gate lines to define a pixel area. A first short preventive hole is arranged between a (n?1)th gate line and a (n)th gate line of the plurality of gate lines. And a bifarious pixel area is arranged between the (n)th gate line and a (n+1)th gate line of the plurality of gate lines.
    Type: Grant
    Filed: June 29, 2006
    Date of Patent: February 16, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Seoung Jin Park, Hyun Cheol Jin
  • Publication number: 20090102994
    Abstract: An in-plane switching mode liquid crystal display according to an embodiment includes gate lines arranged in a first direction on an array substrate, data lines arranged in a second direction substantially perpendicular to the first direction, one or more storage electrodes provided on the array substrate, common electrodes extending across each pixel region, pixel electrodes arranged to be substantially parallel to the common electrodes, the common electrodes and the pixel electrodes being alternately arranged to generate an in-plane field in each pixel region, thin film transistors (TFTs) provided at intersection areas of the gate lines and the data lines, each TFT including a source electrode connected to the corresponding data line, a drain electrode connected to the corresponding pixel electrode and a gate electrode, and at least one common line located under the respective common electrode in the pixel region, the common line being substantially parallel to the data lines.
    Type: Application
    Filed: October 8, 2008
    Publication date: April 23, 2009
    Inventors: Jae-Young Oh, Joon-Youp Lee, Hyun-Cheol Jin, Min-Jic Lee
  • Patent number: 7158811
    Abstract: Disclosed is a circuit for supplying ear-microphone bias power in a mobile terminal that reduces power consumption due to unnecessary ear-microphone bias when the terminal is in a sleep mode with an ear/microphone being connected to the terminal through an ear-microphone line. The ear/microphone has a call switch connected to the ear-microphone line. The circuit receives first and second powers through first and second power input terminals, respectively. The first power is supplied when the terminal is not in the sleep mode, whereas the second power having a voltage lower than that of the first power is supplied also in the sleep mode. The circuit supplies ear-microphone bias power, based on the first power, to the ear-microphone line when not in the sleep mode, and supplies power for detecting a switching operation of the call switch, based on the second power, to the ear-microphone line in the sleep mode.
    Type: Grant
    Filed: August 18, 2004
    Date of Patent: January 2, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Hyun-Cheol Jin
  • Publication number: 20050164631
    Abstract: Disclosed is a circuit for supplying ear-microphone bias power in a mobile terminal that reduces power consumption due to unnecessary ear-microphone bias when the terminal is in a sleep mode with an ear/microphone being connected to the terminal through an ear-microphone line. The ear/microphone has a call switch connected to the ear-microphone line. The circuit receives first and second powers through first and second power input terminals, respectively. The first power is supplied when the terminal is not in the sleep mode, whereas the second power having a voltage lower than that of the first power is supplied also in the sleep mode. The circuit supplies ear-microphone bias power, based on the first power, to the ear-microphone line when not in the sleep mode, and supplies power for detecting a switching operation of the call switch, based on the second power, to the ear-microphone line in the sleep mode.
    Type: Application
    Filed: August 18, 2004
    Publication date: July 28, 2005
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Hyun-Cheol Jin