Patents by Inventor DONG KYUN WOO

DONG KYUN WOO 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: 11676534
    Abstract: A light emitting display device includes a display panel configured to display an image, a driver configured to drive the display panel, and a compensation circuit configured to repeat a process of obtaining a sensing voltage from a sub-pixel included in the display panel, storing the sensing voltage, outputting the stored sensing voltage to the sub-pixel, and obtaining a sensing voltage from the sub-pixel to integrate the sensing voltage.
    Type: Grant
    Filed: December 3, 2021
    Date of Patent: June 13, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Hyuck Jun Kim, Dong Kyun Woo, Tae Young Lee
  • Publication number: 20220199017
    Abstract: A light emitting display device includes a display panel configured to display an image, a driver configured to drive the display panel, and a compensation circuit configured to repeat a process of obtaining a sensing voltage from a sub-pixel included in the display panel, storing the sensing voltage, outputting the stored sensing voltage to the sub-pixel, and obtaining a sensing voltage from the sub-pixel to integrate the sensing voltage.
    Type: Application
    Filed: December 3, 2021
    Publication date: June 23, 2022
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Hyuck Jun KIM, Dong Kyun WOO, Tae Young LEE
  • Patent number: 10325737
    Abstract: Disclosed is a fast switch device including: a reactor that moves to an open position where the switch is opened and a close position where the switch is closed; an open coil portion that drives the reactor to the open position by virtue of an eddy current component; a close coil portion that drives the reactor the close position by virtue of an eddy current component; and a controller that performs control such that an electric current is applied to the close coil portion oppositely to a direction of an electric current flowing through the open coil portion in order to brake the reactor during an open operation for driving the reactor to the open position, and an electric current is applied to the open coil portion oppositely to a direction of an electric current flowing through the close coil portion.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: June 18, 2019
    Assignee: HYOSUNG HEAVY INDUSTRIES CORPORATION
    Inventors: Dong Kyun Woo, Jae Hyeong Ko
  • Patent number: 10235934
    Abstract: Discussed are an organic light emitting display panel and an organic light emitting display device including the same, which allows a uniform current to flow in a plurality of driving power lines, thereby reducing consumption power. The organic light emitting display panel can include first to mth gate lines and first to nth data lines configured to define a plurality of pixel areas by intersections therebetween, a plurality of color pixels respectively provided in the plurality of pixel areas, and a plurality of driving power lines. Each of the plurality power lines is shared by two color pixels which are adjacent to each other in a first direction corresponding to a length direction of the first to mth gate lines. Two color pixels, which are adjacent to each other in a second direction corresponding to a length direction of the plurality of driving power lines, have different colors.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: March 19, 2019
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Dong Kyun Woo, Gi-Hong Kim
  • Publication number: 20170358411
    Abstract: Disclosed is a fast switch device including: a reactor that moves to an open position where the switch is opened and a close position where the switch is closed; an open coil portion that drives the reactor to the open position by virtue of an eddy current component; a close coil portion that drives the reactor the close position by virtue of an eddy current component; and a controller that performs control such that an electric current is applied to the close coil portion oppositely to a direction of an electric current flowing through the open coil portion in order to brake the reactor during an open operation for driving the reactor to the open position, and an electric current is applied to the open coil portion oppositely to a direction of an electric current flowing through the close coil portion.
    Type: Application
    Filed: December 30, 2015
    Publication date: December 14, 2017
    Applicant: HYOSUNG Corporation
    Inventors: Dong Kyun WOO, Jae Hyeong KO
  • Patent number: 9570009
    Abstract: A pixel circuit of a display device, an organic light emitting display device and a method for driving the same are discussed. The pixel circuit of the display device in one example includes an organic light emitting device emitting light through a current; a driving transistor controlling the current flowing in the organic light emitting device; a first capacitor connected between gate and source electrodes of the driving transistor; a second capacitor in which a data voltage is previously stored; and a switching unit charging the data voltage, which is stored in the second capacitor, in the first capacitor, and allowing the organic light emitting device to emit light by driving the driving transistor in accordance with the data voltage charged in the first capacitor and at the same time charging a data voltage of next frame in the second capacitor.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: February 14, 2017
    Assignee: LG Display Co., Ltd.
    Inventors: Dong Kyun Woo, Gi-Hong Kim
  • Publication number: 20150161940
    Abstract: A pixel circuit of a display device, an organic light emitting display device and a method for driving the same are discussed. The pixel circuit of the display device in one example includes an organic light emitting device emitting light through a current; a driving transistor controlling the current flowing in the organic light emitting device; a first capacitor connected between gate and source electrodes of the driving transistor; a second capacitor in which a data voltage is previously stored; and a switching unit charging the data voltage, which is stored in the second capacitor, in the first capacitor, and allowing the organic light emitting device to emit light by driving the driving transistor in accordance with the data voltage charged in the first capacitor and at the same time charging a data voltage of next frame in the second capacitor.
    Type: Application
    Filed: December 3, 2014
    Publication date: June 11, 2015
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Dong Kyun WOO, Gi-Hong KIM
  • Publication number: 20150138178
    Abstract: Discussed are an organic light emitting display panel and an organic light emitting display device including the same, which allows a uniform current to flow in a plurality of driving power lines, thereby reducing consumption power. The organic light emitting display panel can include first to mth gate lines and first to nth data lines configured to define a plurality of pixel areas by intersections therebetween, a plurality of color pixels respectively provided in the plurality of pixel areas, and a plurality of driving power lines. Each of the plurality power lines is shared by two color pixels which are adjacent to each other in a first direction corresponding to a length direction of the first to mth gate lines. Two color pixels, which are adjacent to each other in a second direction corresponding to a length direction of the plurality of driving power lines, have different colors.
    Type: Application
    Filed: November 12, 2014
    Publication date: May 21, 2015
    Applicant: LG DISPLAY CO., LTD.
    Inventors: DONG KYUN WOO, GI-HONG KIM