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).
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Patent number: 10311810Abstract: 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: GrantFiled: May 26, 2017Date of Patent: June 4, 2019Assignee: LG Display Co., Ltd.Inventor: Wookyu Sang
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Patent number: 10242634Abstract: 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: GrantFiled: December 30, 2015Date of Patent: March 26, 2019Assignee: LG Display Co., Ltd.Inventors: Wookyu Sang, Sangjin Nam, Ooksang Yoo, Seungjin Yoo
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Patent number: 10147371Abstract: 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: GrantFiled: June 10, 2015Date of Patent: December 4, 2018Assignee: LG Display Co., Ltd.Inventors: Wookyu Sang, Wonho Lee, Juun Park
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Patent number: 9905152Abstract: 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: GrantFiled: December 30, 2015Date of Patent: February 27, 2018Assignee: LG Display Co., Ltd.Inventor: Wookyu Sang
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Patent number: 9870749Abstract: 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: GrantFiled: August 24, 2015Date of Patent: January 16, 2018Assignee: LG Display Co., Ltd.Inventors: Seungjin Yoo, Wookyu Sang, Ooksang Yoo
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Publication number: 20170345382Abstract: 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: ApplicationFiled: May 26, 2017Publication date: November 30, 2017Applicant: LG Display Co., Ltd.Inventor: Wookyu SANG
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Publication number: 20160322008Abstract: 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: ApplicationFiled: December 30, 2015Publication date: November 3, 2016Applicant: LG Display Co., Ltd.Inventors: Wookyu SANG, Sangjin NAM, Ooksang YOO, Seungjin YOO
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Publication number: 20160314736Abstract: 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: ApplicationFiled: December 30, 2015Publication date: October 27, 2016Inventor: Wookyu SANG
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Publication number: 20160078826Abstract: 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: ApplicationFiled: August 24, 2015Publication date: March 17, 2016Applicant: LG DISPLAY CO., LTD.Inventors: Seungjin YOO, Wookyu SANG, Ooksang YOO
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Publication number: 20150379947Abstract: 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: ApplicationFiled: June 10, 2015Publication date: December 31, 2015Inventors: Wookyu SANG, Wonho LEE, Juun PARK
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Patent number: 8446402Abstract: 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: GrantFiled: October 15, 2009Date of Patent: May 21, 2013Assignee: LG Display Co. Ltd.Inventors: Wookyu Sang, Juyoung Lee, Yunsung Yang
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Patent number: 8411024Abstract: 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: GrantFiled: November 29, 2010Date of Patent: April 2, 2013Assignee: LG Display Co., Ltd.Inventors: Juyoung Lee, Jikyoung Kim, Wookyu Sang
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Patent number: 8134655Abstract: 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: GrantFiled: October 16, 2009Date of Patent: March 13, 2012Assignee: LG Display Co., Ltd.Inventors: Yunsung Yang, Juyoung Lee, Wookyu Sang
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Publication number: 20120038752Abstract: 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: ApplicationFiled: December 9, 2010Publication date: February 16, 2012Inventor: Wookyu SANG
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Publication number: 20110279490Abstract: 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: ApplicationFiled: November 29, 2010Publication date: November 17, 2011Inventors: Juyoung Lee, Jikyoung Kim, Wookyu Sang
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Publication number: 20100302493Abstract: 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: ApplicationFiled: October 16, 2009Publication date: December 2, 2010Inventors: Yunsung YANG, Juyoung LEE, Wookyu SANG
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Publication number: 20100283777Abstract: 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: ApplicationFiled: October 15, 2009Publication date: November 11, 2010Inventors: Wookyu Sang, Juyoung Lee, Yunsung Yang