Patents by Inventor Wookyu Sang

Wookyu Sang 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: 10311810
    Abstract: A liquid crystal display device includes a plurality of data lines; a plurality of gate lines and a pixel array including a plurality of subpixels formed of first-color to fourth-color subpixels. The plurality of subpixels has a first arrangement or a second arrangement. The first arrangement is an arrangement in which in each row of the pixel array two of the first-color to fourth-color subpixels is interleaved. The second arrangement is a different arrangement than the first arrangement in which in each row of the pixel array two of the first-color to fourth-color subpixels are interleaved. A data driver is configured to drive the pixel array according to a first driving method when the pixel array has the first arrangement and drive the pixel array according to at least one second driving method that is different from the first driving method when the pixel array has the second arrangement.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: June 4, 2019
    Assignee: LG Display Co., Ltd.
    Inventor: Wookyu Sang
  • Patent number: 10242634
    Abstract: A display device is disclosed. A display panel includes a plurality of subpixels of a plurality of colors arranged in a matrix form, and a plurality of gate lines and data lines respectively connected to the subpixels. A data driver is configured to supply data voltages to the subpixels through a plurality of source channels and the data lines. A switch circuit is configured to connect one of the source channels selectively to one of the data lines during a first scan period in one horizontal period and to a different one of the data lines during a second scan period in the one horizontal period. The data driver is configured to supply data voltages of one color to the one of the source channels during both the first scan period and the second scan period in the one horizontal period.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: March 26, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Wookyu Sang, Sangjin Nam, Ooksang Yoo, Seungjin Yoo
  • Patent number: 10147371
    Abstract: A display device includes a pixel array including a first set of subpixels of first to fourth colors and a second set of subpixels of the first to fourth colors. The display device also includes a data driver configured to generate first data voltages and second data voltages. The first data voltages have a first polarity with respect to a common voltage that is applied to the pixel array and the second data voltages have a second polarity with respect to the common voltage that is different than the first polarity. The data driver applies the first data voltages of the first polarity to the first set of subpixels of the first to fourth colors via the data line and subsequently applies the second data voltages of the second polarity to the second set of subpixels of the first to fourth colors via the data line.
    Type: Grant
    Filed: June 10, 2015
    Date of Patent: December 4, 2018
    Assignee: LG Display Co., Ltd.
    Inventors: Wookyu Sang, Wonho Lee, Juun Park
  • Patent number: 9905152
    Abstract: A liquid crystal display is disclosed. The liquid crystal display includes subpixels of first to fourth colors arranged on each row, a first data line connected to the first color subpixel and the second color subpixel on each row, a second data line connected to the third color subpixel and the fourth color subpixel on each row, a first gate line connected on each row to subpixels of two colors selected among the first to fourth colors, a second gate line connected on each row to subpixels of two remaining colors among the first to fourth colors, a data driver configured to supply a data voltage to the first and second data lines in a time-division manner, and a gate driver configured to supply a gate pulse to the first and second gate lines in synchronization with an output timing of the data voltage.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: February 27, 2018
    Assignee: LG Display Co., Ltd.
    Inventor: Wookyu Sang
  • Patent number: 9870749
    Abstract: A display device includes a pixel array having a plurality of pixels arranged in a matrix form based on a crossing structure of data lines and gate lines, a data driver having a plurality of output channels and configured to output a data voltage, a multiplexer configured to distribute the data voltage output from the data driver to the data lines in response to first and second control signals, and a gate driver configured to output a gate pulse synchronized with the data voltage in a non-sequential manner. The first and second control signals are in antiphase, and a switching cycle of the first and second control signals is one horizontal period or two horizontal periods.
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: January 16, 2018
    Assignee: LG Display Co., Ltd.
    Inventors: Seungjin Yoo, Wookyu Sang, Ooksang Yoo
  • Publication number: 20170345382
    Abstract: A liquid crystal display device includes a plurality of data lines; a plurality of gate lines and a pixel array including a plurality of subpixels formed of first-color to fourth-color subpixels. The plurality of subpixels has a first arrangement or a second arrangement. The first arrangement is an arrangement in which in each row of the pixel array two of the first-color to fourth-color subpixels is interleaved. The second arrangement is a different arrangement than the first arrangement in which in each row of the pixel array two of the first-color to fourth-color subpixels are interleaved. A data driver is configured to drive the pixel array according to a first driving method when the pixel array has the first arrangement and drive the pixel array according to at least one second driving method that is different from the first driving method when the pixel array has the second arrangement.
    Type: Application
    Filed: May 26, 2017
    Publication date: November 30, 2017
    Applicant: LG Display Co., Ltd.
    Inventor: Wookyu SANG
  • Publication number: 20160322008
    Abstract: A display device is disclosed. A display panel includes a plurality of subpixels of a plurality of colors arranged in a matrix form, and a plurality of gate lines and data lines respectively connected to the subpixels. A data driver is configured to supply data voltages to the subpixels through a plurality of source channels and the data lines. A switch circuit is configured to connect one of the source channels selectively to one of the data lines during a first scan period in one horizontal period and to a different one of the data lines during a second scan period in the one horizontal period. The data driver is configured to supply data voltages of one color to the one of the source channels during both the first scan period and the second scan period in the one horizontal period.
    Type: Application
    Filed: December 30, 2015
    Publication date: November 3, 2016
    Applicant: LG Display Co., Ltd.
    Inventors: Wookyu SANG, Sangjin NAM, Ooksang YOO, Seungjin YOO
  • Publication number: 20160314736
    Abstract: A liquid crystal display is disclosed. The liquid crystal display includes subpixels of first to fourth colors arranged on each row, a first data line connected to the first color subpixel and the second color subpixel on each row, a second data line connected to the third color subpixel and the fourth color subpixel on each row, a first gate line connected on each row to subpixels of two colors selected among the first to fourth colors, a second gate line connected on each row to subpixels of two remaining colors among the first to fourth colors, a data driver configured to supply a data voltage to the first and second data lines in a time-division manner, and a gate driver configured to supply a gate pulse to the first and second gate lines in synchronization with an output timing of the data voltage.
    Type: Application
    Filed: December 30, 2015
    Publication date: October 27, 2016
    Inventor: Wookyu SANG
  • Publication number: 20160078826
    Abstract: A display device includes a pixel array having a plurality of pixels arranged in a matrix form based on a crossing structure of data lines and gate lines, a data driver having a plurality of output channels and configured to output a data voltage, a multiplexer configured to distribute the data voltage output from the data driver to the data lines in response to first and second control signals, and a gate driver configured to output a gate pulse synchronized with the data voltage in a non-sequential manner. The first and second control signals are in antiphase, and a switching cycle of the first and second control signals is one horizontal period or two horizontal periods.
    Type: Application
    Filed: August 24, 2015
    Publication date: March 17, 2016
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Seungjin YOO, Wookyu SANG, Ooksang YOO
  • Publication number: 20150379947
    Abstract: A display device includes a pixel array including a first set of subpixels of first to fourth colors and a second set of subpixels of the first to fourth colors. The display device also includes a data driver configured to generate first data voltages and second data voltages, the first data voltages having a first polarity with respect to a common voltage that is applied to the pixel array and the second data voltages having a second polarity with respect to the common voltage that is different than the first polarity, and wherein the data driver applies the first data voltages of the first polarity to the first set of subpixels of the first to fourth colors via the data line and subsequently applies the second data voltages of the second polarity to the second set of subpixels of the first to fourth colors via the data line.
    Type: Application
    Filed: June 10, 2015
    Publication date: December 31, 2015
    Inventors: Wookyu SANG, Wonho LEE, Juun PARK
  • Patent number: 8446402
    Abstract: A liquid crystal display is disclosed. The liquid crystal display includes a liquid crystal display panel on which a plurality of data lines and a plurality of gate lines are positioned to cross one another and a plurality of liquid crystal cells driven according to a voltage difference between a data voltage and a common voltage are positioned in a matrix format, a side printed circuit board (PCB) connected to the side of the liquid crystal display panel, and a DC to DC converter that is mounted on the side PCB to produce a driving voltage of the liquid crystal display panel.
    Type: Grant
    Filed: October 15, 2009
    Date of Patent: May 21, 2013
    Assignee: LG Display Co. Ltd.
    Inventors: Wookyu Sang, Juyoung Lee, Yunsung Yang
  • Patent number: 8411024
    Abstract: An image display device comprises a liquid crystal display panel, panel driving circuits, a backlight configured to include a plurality of light source blocks, and a controller configured to modulate input data to generate image data synchronized with N multiple frame frequency, control the panel driving circuits such that same image data are displayed every two consecutive frame periods, control the light source blocks to be sequentially turned on during a light source scanning period, and control the light source blocks to be simultaneously turned off during a light source blinking period between neighboring light source scanning periods.
    Type: Grant
    Filed: November 29, 2010
    Date of Patent: April 2, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Juyoung Lee, Jikyoung Kim, Wookyu Sang
  • Patent number: 8134655
    Abstract: A liquid crystal display is disclosed. The liquid crystal display includes a liquid crystal module including a liquid crystal display panel and a backlight unit underlying the liquid crystal display panel and a printed circuit board (PCB) connected to the liquid crystal display panel through one of a tape carrier package (TCP), on which integrated circuits (ICs) are mounted, and a flexible circuit board. An edge of the liquid crystal module has an inclined surface inclined at an angle smaller than 90° from one of a top surface and a bottom surface of the liquid crystal module. The PCB is faced to the inclined surface.
    Type: Grant
    Filed: October 16, 2009
    Date of Patent: March 13, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Yunsung Yang, Juyoung Lee, Wookyu Sang
  • Publication number: 20120038752
    Abstract: An image display device comprises a display panel selectively displaying a 2D image and a 3D image according to a mode selection signal; a first memory enabled in a 2D mode to output a previously stored first compensation value; a second memory enabled in a 3D mode to output a previously stored second compensation value; and a timing controller modulating input digital video data based on the first compensation value to display the 2D image in the 2D mode and modulating input digital video data based on the second compensation value to display the 3D image in the 3D mode.
    Type: Application
    Filed: December 9, 2010
    Publication date: February 16, 2012
    Inventor: Wookyu SANG
  • Publication number: 20110279490
    Abstract: An image display device comprises a liquid crystal display panel, panel driving circuits, a backlight configured to include a plurality of light source blocks, and a controller configured to modulate input data to generate image data synchronized with N multiple frame frequency, control the panel driving circuits such that same image data are displayed every two consecutive frame periods, control the light source blocks to be sequentially turned on during a light source scanning period, and control the light source blocks to be simultaneously turned off during a light source blinking period between neighboring light source scanning periods.
    Type: Application
    Filed: November 29, 2010
    Publication date: November 17, 2011
    Inventors: Juyoung Lee, Jikyoung Kim, Wookyu Sang
  • Publication number: 20100302493
    Abstract: A liquid crystal display is disclosed. The liquid crystal display includes a liquid crystal module including a liquid crystal display panel and a backlight unit underlying the liquid crystal display panel and a printed circuit board (PCB) connected to the liquid crystal display panel through one of a tape carrier package (TCP), on which integrated circuits (ICs) are mounted, and a flexible circuit board. An edge of the liquid crystal module has an inclined surface inclined at an angle smaller than 90° from one of a top surface and a bottom surface of the liquid crystal module. The PCB is faced to the inclined surface.
    Type: Application
    Filed: October 16, 2009
    Publication date: December 2, 2010
    Inventors: Yunsung YANG, Juyoung LEE, Wookyu SANG
  • Publication number: 20100283777
    Abstract: A liquid crystal display is disclosed. The liquid crystal display includes a liquid crystal display panel on which a plurality of data lines and a plurality of gate lines are positioned to cross one another and a plurality of liquid crystal cells driven according to a voltage difference between a data voltage and a common voltage are positioned in a matrix format, a side printed circuit board (PCB) connected to the side of the liquid crystal display panel, and a DC to DC converter that is mounted on the side PCB to produce a driving voltage of the liquid crystal display panel.
    Type: Application
    Filed: October 15, 2009
    Publication date: November 11, 2010
    Inventors: Wookyu Sang, Juyoung Lee, Yunsung Yang