Patents by Inventor Sung Jo Koo

Sung Jo Koo 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: 9646550
    Abstract: The liquid crystal display device includes a display panel for displaying a picture thereon, first to (n)th upper data drive ICs for supplying pixel voltages to one side of each data line in the display panel, first to (n)th bottom data drive ICs for supplying pixel voltages to the other side of each data line, a first timing controller for generating an upper data control signal and for controlling operation of the upper data drive ICs, and a second timing controller for generating a bottom data control signal and for controlling operation of the bottom data drive ICs wherein at least one of the first and second timing controllers analyzes the picture data applied thereto and controls the polarities of the pixel voltages to be forwarded from the upper data drive ICs and the bottom data drive ICs with reference to the result of the analysis.
    Type: Grant
    Filed: December 8, 2011
    Date of Patent: May 9, 2017
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Min-Kyu Kim, Young-Ho Kim, Sung-Jo Koo
  • Patent number: 8421735
    Abstract: Disclosed herein is a liquid crystal display device in which an image can be correctly seen even though a screen is rotated. The liquid crystal display device includes a storage unit for storing a plurality of screen change signals, and a timing controller for dividing image data of one horizontal line externally supplied thereto into k odd sub-image data and k even sub-image data, and sequentially outputting the k odd sub-image data and sequentially outputting the k even sub-image data.
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: April 16, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Young-Ho Kim, Sung-Jo Koo
  • Patent number: 8228437
    Abstract: A video processing method and apparatus for a liquid crystal display (LCD) device is disclosed. The video processing method for the LCD device includes detecting noise by comparing data of a previous frame with data of a current frame, if the noise is detected, removing the noise from the current frame data, and outputting the resultant current frame data having no noise together with the previous frame data, and comparing the previous frame data with the resultant current frame data having no noise in a lookup table, selecting overdriving data corresponding to the comparison result, and outputting the selected overdriving data.
    Type: Grant
    Filed: September 16, 2009
    Date of Patent: July 24, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Young Ho Kim, Sung Jo Koo
  • Publication number: 20120146967
    Abstract: The liquid crystal display device includes a display panel for displaying a picture thereon, first to (n)th upper data drive ICs for supplying pixel voltages to one side of each data line in the display panel, first to (n)th bottom data drive ICs for supplying pixel voltages to the other side of each data line, a first timing controller for generating an upper data control signal and for controlling operation of the upper data drive ICs, and a second timing controller for generating a bottom data control signal and for controlling operation of the bottom data drive ICs wherein at least one of the first and second timing controllers analyzes the picture data applied thereto and controls the polarities of the pixel voltages to be forwarded from the upper data drive ICs and the bottom data drive ICs with reference to the result of the analysis.
    Type: Application
    Filed: December 8, 2011
    Publication date: June 14, 2012
    Inventors: Min-Kyu Kim, Young-Ho Kim, Sung-Jo Koo
  • Patent number: 8134580
    Abstract: A method of driving a liquid crystal display device includes multiplying a frame frequency of an inputted current frame to generate a multiplied odd-numbered frame and a multiplied even-numbered frame; determining whether said current frame is a still image frame or a dynamic image frame; detecting an edge area at which a motion blur occurs from the multiplied odd-numbered frame and the multiplied even-numbered frame; converting gray level values of pixels positioned at the detected edge area at the multiplied odd-numbered frame and the multiplied even-numbered frame; and continuously outputting the multiplied odd-numbered still image frame and the multiplied even-numbered still image frame or continuously outputting the multiplied odd-numbered dynamic image frame and the multiplied even-numbered dynamic image frame having the converted gray level values in accordance with the determined result. A liquid crystal display device is also disclosed.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: March 13, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Chang Gone Kim, Sung Jo Koo, Myung Kook Moon, Jin Ha Lee
  • Patent number: 8125428
    Abstract: A liquid crystal display device includes a data transition part to compare a number of transitions between a previous data and a current data and to compare a number of transitions between the current data and a next data to determine whether or not the current data is to be inverted in accordance with a comparison result thereof, and to determine whether or not the current data is to be inverted in accordance with a high level number difference of the data, thereby generating a reverse signal when the current data is inverted, a memory to store a data from the data transition part, a data reverse transition part to reversely convert the data from the memory using the reverse signal, a lookup table to compare the current data and the previous frame data reversely converted by the data reverse transition part to select a modulated data and a display drive circuit to display the data from the lookup table on a liquid crystal display panel.
    Type: Grant
    Filed: February 14, 2011
    Date of Patent: February 28, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Sung Jo Koo, Su Hyuk Jang, Song Jae Lee, Hong Sung Song, Woong Ki Min
  • Publication number: 20110261029
    Abstract: Disclosed is an apparatus for driving an LCD device displaying 2D image, and 3D image through the use of shutter glass comprising: a lookup table part including a 3D lookup table for generating 3D overdriving data to be reflected in 3D image data, and a 2D lookup table for generating 2D overdriving data to be reflected in 2D image data; a lookup table selecting part for selecting the 2D lookup table or 3D lookup table provided from the lookup table part according to 2D or 3D mode input; an ODC data generating part for generating the 2D overdriving data to be reflected in the 2D image, and the 3D overdriving data to be reflected in the 3D image according to 2D or 3D mode input; and a shutter glass controlling part for controlling an operation of shutter glass so that a user recognizes an image displayed on a liquid crystal panel as the 3D image.
    Type: Application
    Filed: December 8, 2010
    Publication date: October 27, 2011
    Inventors: Myung Kook MOON, Hyun Taek NAM, Sung Jo KOO, Jong Woo KIM
  • Patent number: 7961163
    Abstract: A liquid crystal display device includes a data transition part to compare a number of transitions between a previous data and a current data to selectively invert the current data and to generate a reverse signal, a memory to store the data from the data transition part and to output the stored data as the previous frame data, a data reverse transition part to reversely convert the data from the memory using the reverse signal, a lookup table to compare the current data and the previous frame data reversely converted by the data reverse transition part to select a modulated data, and a display drive circuit to display the data from the lookup table on a liquid crystal display panel.
    Type: Grant
    Filed: December 31, 2007
    Date of Patent: June 14, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Sung Jo Koo, Su Hyuk Jang, Song Jae Lee, Hong Sung Song, Woong Ki Min
  • Publication number: 20110134169
    Abstract: A liquid crystal display device includes a data transition part to compare a number of transitions between a previous data and a current data and to compare a number of transitions between the current data and a next data to determine whether or not the current data is to be inverted in accordance with a comparison result thereof, and to determine whether or not the current data is to be inverted in accordance with a high level number difference of the data, thereby generating a reverse signal when the current data is inverted, a memory to store a data from the data transition part, a data reverse transition part to reversely convert the data from the memory using the reverse signal, a lookup table to compare the current data and the previous frame data reversely converted by the data reverse transition part to select a modulated data and a display drive circuit to display the data from the lookup table on a liquid crystal display panel.
    Type: Application
    Filed: February 14, 2011
    Publication date: June 9, 2011
    Inventors: Sung Jo Koo, Su Hyuk Jang, Song Jae Lee, Hong Sung Song, Woong Ki Min
  • Publication number: 20100164852
    Abstract: Disclosed herein is a liquid crystal display device in which an image can be correctly seen even though a screen is rotated. The liquid crystal display device includes a storage unit for storing a plurality of screen change signals, and a timing controller for dividing image data of one horizontal line externally supplied thereto into k odd sub-image data and k even sub-image data, and sequentially outputting the k odd sub-image data and sequentially outputting the k even sub-image data.
    Type: Application
    Filed: December 1, 2009
    Publication date: July 1, 2010
    Inventors: Young-Ho KIM, Sung-Jo Koo
  • Publication number: 20100156961
    Abstract: A method of driving a liquid crystal display device includes multiplying a frame frequency of an inputted current frame to generate a multiplied odd-numbered frame and a multiplied even-numbered frame; determining whether said current frame is a still image frame or a dynamic image frame; detecting an edge area at which a motion blur occurs from the multiplied odd-numbered frame and the multiplied even-numbered frame; converting gray level values of pixels positioned at the detected edge area at the multiplied odd-numbered frame and the multiplied even-numbered frame; and continuously outputting the multiplied odd-numbered still image frame and the multiplied even-numbered still image frame or continuously outputting the multiplied odd-numbered dynamic image frame and the multiplied even-numbered dynamic image frame having the converted gray level values in accordance with the determined result. A liquid crystal display device is also disclosed.
    Type: Application
    Filed: March 3, 2010
    Publication date: June 24, 2010
    Inventors: Chang Gone Kim, Sung Jo Koo, Myung Kook Moon, Jin Ha Lee
  • Publication number: 20100157159
    Abstract: A video processing method and apparatus for a liquid crystal display (LCD) device is disclosed. The video processing method for the LCD device includes detecting noise by comparing data of a previous frame with data of a current frame, if the noise is detected, removing the noise from the current frame data, and outputting the resultant current frame data having no noise together with the previous frame data, and comparing the previous frame data with the resultant current frame data having no noise in a lookup table, selecting overdriving data corresponding to the comparison result, and outputting the selected overdriving data.
    Type: Application
    Filed: September 16, 2009
    Publication date: June 24, 2010
    Inventors: Young Ho Kim, Sung Jo Koo
  • Patent number: 7701429
    Abstract: A method of driving a liquid crystal display device includes multiplying a frame frequency of an inputted current frame to generate a multiplied odd-numbered frame and a multiplied even-numbered frame; determining whether said current frame is a still image frame or a dynamic image frame; detecting an edge area at which a motion blur occurs from the multiplied odd-numbered frame and the multiplied even-numbered frame; converting gray level values of pixels positioned at the detected edge area at the multiplied odd-numbered frame and the multiplied even-numbered frame; and continuously outputting the multiplied odd-numbered still image frame and the multiplied even-numbered still image frame or continuously outputting the multiplied odd-numbered dynamic image frame and the multiplied even-numbered dynamic image frame having the converted gray level values in accordance with the determined result. A liquid crystal display device is also disclosed.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: April 20, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Chang Gone Kim, Sung Jo Koo, Myung Kook Moon, Jin Ha Lee
  • Publication number: 20090002292
    Abstract: A liquid crystal display device includes a data transition part to compare a number of transitions between a previous data and a current data to selectively invert the current data and to generate a reverse signal, a memory to store the data from the data transition part and to output the stored data as the previous frame data, a data reverse transition part to reversely convert the data from the memory using the reverse signal, a lookup table to compare the current data and the previous frame data reversely converted by the data reverse transition part to select a modulated data, and a display drive circuit to display the data from the lookup table on a liquid crystal display panel.
    Type: Application
    Filed: December 31, 2007
    Publication date: January 1, 2009
    Inventors: Sung Jo Koo, Su Hyuk Jang, Song Jae Lee, Hong Sung Song, Woong Ki Min
  • Publication number: 20070296668
    Abstract: A method of driving a liquid crystal display device includes multiplying a frame frequency of an inputted current frame to generate a multiplied odd-numbered frame and a multiplied even-numbered frame; determining whether said current frame is a still image frame or a dynamic image frame; detecting an edge area at which a motion blur occurs from the multiplied odd-numbered frame and the multiplied even-numbered frame; converting gray level values of pixels positioned at the detected edge area at the multiplied odd-numbered frame and the multiplied even-numbered frame; and continuously outputting the multiplied odd-numbered still image frame and the multiplied even-numbered still image frame or continuously outputting the multiplied odd-numbered dynamic image frame and the multiplied even-numbered dynamic image frame having the converted gray level values in accordance with the determined result. A liquid crystal display device is also disclosed.
    Type: Application
    Filed: December 28, 2006
    Publication date: December 27, 2007
    Inventors: Chang Gone Kim, Sung Jo Koo, Myung Kook Moon, Jin Ha Lee