Patents by Inventor Hak Su Kim

Hak Su Kim 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: 11832748
    Abstract: The present invention discloses a PET-coated wire for a hanger wherein the wire is coated with PET to form a PET coating having a thickness of 0.03 to 0.05 mm, and a hanger made of the wire. The PET coating apparatus for a wire used for a hanger of the present invention comprises a preheating device 20 for preheating the cleaned wire 10 to 220 to 250° C., an extruder 30 and a dice 40 for coating the preheated wire 10 with PET to form a PET coating having a thickness of 0.03 to 0.05 mm, a cooling bath 50 for cooling the PET-coated wire 100, and a winding device 60 for drawing out and winding the cooled wire. The cooling bath 50 of the present invention is designed such that the wire passes through the cooling bath 50 having a length of 5 m three times for sufficient cooling when the wire proceeds at a high speed of 220 to 300 m/min.
    Type: Grant
    Filed: December 4, 2020
    Date of Patent: December 5, 2023
    Inventor: Hak Su Kim
  • Publication number: 20220142387
    Abstract: The present invention discloses a PET-coated wire for a hanger wherein the wire is coated with PET to form a PET coating having a thickness of 0.03 to 0.05 mm, and a hanger made of the wire. The PET coating apparatus for a wire used for a hanger of the present invention comprises a preheating device 20 for preheating the cleaned wire 10 to 220 to 250° C., an extruder 30 and a dice 40 for coating the preheated wire 10 with PET to form a PET coating having a thickness of 0.03 to 0.05 mm, a cooling bath 50 for cooling the PET-coated wire 100, and a winding device 60 for drawing out and winding the cooled wire. The cooling bath 50 of the present invention is designed such that the wire passes through the cooling bath 50 having a length of 5 m three times for sufficient cooling when the wire proceeds at a high speed of 220 to 300 m/min.
    Type: Application
    Filed: December 4, 2020
    Publication date: May 12, 2022
    Inventor: Hak Su KIM
  • Patent number: 9865210
    Abstract: A display device according to an embodiment includes switches. Low and high voltages of a selection control signal applied to each of gate electrodes of the switches are varied according to whether one of positive and negative data voltages is applied to each of the source electrodes of the switches. As such, the swing width of the selection control signal can be maintained regardless of the positive and negative data voltages. In accordance therewith, undesired power consumption can be prevented.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: January 9, 2018
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Woo Seock Lee, Ho Seop Shin, Hak Su Kim, Joon Shik Yoon, Se Don Kim
  • Patent number: 9454236
    Abstract: Provided are a three-dimensional mouse device using several body parts, and a marionette control system using the same. The three-dimensional mouse device includes: a support member that is worn on at least one of a head, a face, an arm, and a foot among body parts; an action recognition module that is mounted on the support member; and an action recognition module that is attached to the support member to sense a motion of the body parts and output a sensing signal to the action recognition module.
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: September 27, 2016
    Assignee: Hoseo University Academic Cooperation Foundation
    Inventors: Keun Ho Rew, Kyeong Min Cheon, Seok Bum Lee, Hak Su Kim, Dong Hyun Kim
  • Publication number: 20160202765
    Abstract: Provided are a three-dimensional mouse device using several body parts, and a marionette control system using the same. The three-dimensional mouse device includes: a support member that is worn on at least one of a head, a face, an arm, and a foot among body parts; an action recognition module that is mounted on the support member; and an action recognition module that is attached to the support member to sense a motion of the body parts and output a sensing signal to the action recognition module.
    Type: Application
    Filed: January 20, 2015
    Publication date: July 14, 2016
    Inventors: Keun Ho REW, Kyeong Min CHEON, Seok Bum LEE, Hak Su KIM, Dong Hyun KIM
  • Publication number: 20160180791
    Abstract: A display device according to an embodiment includes switches. Low and high voltages of a selection control signal applied to each of gate electrodes of the switches are varied according to whether one of positive and negative data voltages is applied to each of the source electrodes of the switches. As such, the swing width of the selection control signal can be maintained regardless of the positive and negative data voltages. In accordance therewith, undesired power consumption can be prevented.
    Type: Application
    Filed: December 17, 2015
    Publication date: June 23, 2016
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Woo Seock LEE, Ho Seop SHIN, Hak Su KIM, Joon Shik YOON, Se Don KIM
  • Patent number: 9224328
    Abstract: A method for controlling an organic electro luminescence display device, the device including a display panel including a plurality of data lines that cross a plurality of scan lines, and including electro luminescence elements arranged at intersections of the plurality of data lines and the plurality of scan lines; a pre-charge driver configured to select one of a plurality of pre-charge current levels in accordance with a gray level of incoming data, and supply a pre-charge current, corresponding to the selected one of the plurality of pre-charge current levels, to the electro luminescence elements via the plurality of data lines prior to supplying a data current, corresponding to the incoming data, to the electro luminescence elements, so as to pre-charge the electro luminescence elements; and a data driver configured to subsequently supply the data current to the pre-charged electro luminescence elements via the plurality of data lines.
    Type: Grant
    Filed: May 31, 2005
    Date of Patent: December 29, 2015
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Hak Su Kim, Jae Do Lee, Won Kyu Ha
  • Patent number: 8947474
    Abstract: An LCD device is discussed which includes: a plurality of gate lines and a plurality of data lines arranged on a substrate; a data driver configured to apply data voltages the data lines; a gamma generator configured to apply a plurality of gamma voltages to the data driver, wherein the data line receives the data voltage which has an inverted polarity to those of data voltages on the adjacent data lines thereto, is inverted n times in polarity for every frame, and is over-driven for the gate lines opposite to time points of the polarity inversions.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: February 3, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Hak Su Kim, Young Kyu Shin
  • Patent number: 8692745
    Abstract: The present invention relates to a light emitting device for reducing consumption of an electric power in screen protecting mode. The light emitting device includes a plurality of data lines, a plurality of scan lines, a plurality of pixels, a controller, a data driving circuit and a scan driving circuit. The data lines are disposed in a first direction. The scan lines are disposed in a second direction different from the first direction. The pixels are formed by the data lines and the scan lines. The controller transmits a plurality of first display data. The data driving circuit provides data current corresponding to the first display data transmitted from the controller to the data lines. The scan driving circuit drives the scan lines by a unit of two or more lines under control of the controller when the first display data are repeatedly transmitted to the data driving circuit.
    Type: Grant
    Filed: December 28, 2005
    Date of Patent: April 8, 2014
    Assignee: LG Display Co., Ltd.
    Inventor: Hak Su Kim
  • Patent number: 8344974
    Abstract: An OLED device is disclosed. The OLED device disposes a voltage divider and a switch unit in the output stage of a power supplier, thereby lowering the level of a supply voltage VDD, which is applied to a driver IC in an emission interval, below that of the supply voltage which is applied to the driver IC in a non-emission interval. Accordingly, the OLED device can reduce electric power consumption.
    Type: Grant
    Filed: October 15, 2009
    Date of Patent: January 1, 2013
    Assignee: LG Display Co. Ltd.
    Inventors: Hak Su Kim, Kyoung Don Woo, Young Jun Hong
  • Patent number: 8159425
    Abstract: The present invention relates to a method and apparatus for driving an electro-luminescence display panel capable of doing an aging operation upon driving. A method of driving an electro-luminescence display panel according to the present invention includes: a scan period when electro-luminescence cells formed at a cross of both a plurality of scan lines and a plurality of data lines are line-sequentially emitted; and an aging period when an aging is performed in the electro-luminescence cells at the same time by applying a reverse bias, wherein the scan period and the aging period are repeated for each frame.
    Type: Grant
    Filed: March 16, 2009
    Date of Patent: April 17, 2012
    Assignee: LG Electronics Inc.
    Inventors: Hyo Dae Bae, Hak Su Kim
  • Patent number: 8149231
    Abstract: The present invention relates to an apparatus for supplying power source for providing certain voltage to a first display device and a second display device. The apparatus for supplying power source includes a boosting circuit, a boosted voltage detecting circuit and an output selecting circuit. The boosting circuit boosts a battery voltage. The boosted voltage detecting circuit detects the boosted battery voltage, and transmits the detection result to the boosting circuit. The output selecting circuit is coupled to the boosting circuit and the boosted voltage detecting circuit, and provides selectively the boosted battery voltage to a first display device and a second display device. The apparatus provides certain voltage to a first display device and/or a second display device, and thus the size of a dual panel apparatus employing the display devices may be reduced.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: April 3, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Kyoung Don Woo, Hak Su Kim
  • Patent number: 8004478
    Abstract: An electroluminescent display device is provided that includes a panel having a plurality of scan lines, a plurality of data lines and a plurality of pixels formed at cross areas of the scan lines and data lines. A driving circuit may be provided to drive scan signals on the scan lines and data signals on the data lines. A frame control device may receive first display data, determine a total amount of current passing through each of the scan lines, and provide second display data to the panel based on the determined total amount of current.
    Type: Grant
    Filed: February 23, 2007
    Date of Patent: August 23, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Hak Su Kim, Young Jun Hong, Su Jin Baek
  • Patent number: 7978157
    Abstract: An electro-luminescence display device including red, green and blue reference gamma generators each having three digital analog converters or more in order to generate a reference gamma voltage of low gray level and a reference gamma voltage of high gray level, and at least one integrated circuit to generate a data signal in use of the reference gamma voltage of low gray level and the reference gamma voltage of high gray level. Each reference gamma generator includes a first digital analog converter to divide a voltage supplied to itself in order to generate i numbers of voltage levels, a second digital analog converter to divide a voltage supplied to itself in order to generate j numbers of voltage levels, and a third digital analog converter to receive two voltage levels from the second digital analog converter and to divides the two received voltage levels into j numbers of voltage levels.
    Type: Grant
    Filed: March 5, 2009
    Date of Patent: July 12, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Jung Min Seo, Hyun Joung Kim, Won Kyu Ha, Hak Su Kim, Guen Bae Park, Eun Myung Park, Kee Mog Shin
  • Publication number: 20110037756
    Abstract: The present invention relates to an apparatus for supplying power source for providing certain voltage to a first display device and a second display device. The apparatus for supplying power source includes a boosting circuit, a boosted voltage detecting circuit and an output selecting circuit. The boosting circuit boosts a battery voltage. The boosted voltage detecting circuit detects the boosted battery voltage, and transmits the detection result to the boosting circuit. The output selecting circuit is coupled to the boosting circuit and the boosted voltage detecting circuit, and provides selectively the boosted battery voltage to a first display device and a second display device. The apparatus provides certain voltage to a first display device and/or a second display device, and thus the size of a dual panel apparatus employing the display devices may be reduced.
    Type: Application
    Filed: September 10, 2010
    Publication date: February 17, 2011
    Inventors: Kyoung Don Woo, Hak Su Kim
  • Patent number: 7884782
    Abstract: An electro-luminescence display panel and a driving method thereof for increasing a light-emitting time of a pixel as well as reducing power consumption are disclosed. In the electro-luminescence display panel, a pixel matrix has a plurality of electro-luminescence cells connected between scan lines and data lines. A scan driver drives the scan line. A data driver pre-charges the data lines into a middle voltage of data signals and then supplies corresponding data signals.
    Type: Grant
    Filed: February 14, 2005
    Date of Patent: February 8, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Jae Do Lee, Ki Heon Kim, Hak Su Kim
  • Patent number: 7843409
    Abstract: The present relates to a dual panel apparatus including two panels driven simultaneously. The dual panel apparatus includes a first panel, a second panel and a data driver. The first panel has a plurality of pixels formed in cross areas of data lines and first scan lines. The second panel has a plurality of second pixels formed in cross areas of the data lines and second scan lines. The data driver provides compensating precharge current to one or more data line. The dual panel apparatus uses two panels as main display device and sub display device, and thus the unit cost of the dual panel apparatus is reduced.
    Type: Grant
    Filed: March 24, 2006
    Date of Patent: November 30, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Young Jun Hong, Hak Su Kim, Jae Do Lee
  • Patent number: 7843127
    Abstract: In light emitting panel, the light emitting panel includes a substrate, a pixel part and a protection part. The pixel part has more than or equal to two unit parts separated from each other. The protection has a concave part marking off neighboring unit parts.
    Type: Grant
    Filed: January 11, 2007
    Date of Patent: November 30, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Kyoung Don Woo, Hak Su Kim
  • Patent number: 7808496
    Abstract: The present invention relates to an apparatus for supplying power source for providing certain voltage to a first display device and a second display device. The apparatus for supplying power source includes a boosting circuit, a boosted voltage detecting circuit and an output selecting circuit. The boosting circuit boosts a battery voltage. The boosted voltage detecting circuit detects the boosted battery voltage, and transmits the detection result to the boosting circuit. The output selecting circuit is coupled to the boosting circuit and the boosted voltage detecting circuit, and provides selectively the boosted battery voltage to a first display device and a second display device. The apparatus provides certain voltage to a first display device and/or a second display device, and thus the size of a dual panel apparatus employing the display devices may be reduced.
    Type: Grant
    Filed: May 9, 2006
    Date of Patent: October 5, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Kyoung Don Woo, Hak Su Kim
  • Patent number: 7760170
    Abstract: An organic electroluminescent device having an improved display quality without pectination is provided. The organic electroluminescent device comprises a plurality of the cathode electrode layers comprising a plurality of first cathode electrode layers, wherein one end of each first cathode electrode layer is connected to one of the scan lines extending in the first direction; a plurality of second cathode electrode layers, wherein one end of each second cathode electrode layer is connected to one of the scan lines extending in the second direction; and at least one third cathode electrode layer, wherein one end of each third cathode electrode layer is connected to one of the scan lines extending in the first direction, and the other end of each third cathode electrode layer is connected to one of the scan lines extending in the second direction.
    Type: Grant
    Filed: March 13, 2006
    Date of Patent: July 20, 2010
    Assignee: LG Electronics Inc.
    Inventors: Hyo Dae Bae, Hak Su Kim, Do Wan Kim