Patents by Inventor Hong Sung Song

Hong Sung Song 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: 10629146
    Abstract: A liquid crystal display (LCD) device and a driving method where the LCD device includes a data controller for interleaving one of black gray scale data and intermediate gray scale data into input digital video data to input digital video data in a specific period preceding a second one of two successive frame periods in which data voltages having the same polarity are successively supplied to liquid crystal cells. A timing signal controller generates a data timing signal and a gate timing signal, based on an input timing signal, and accelerates a frequency of the data timing signal and a frequency of the gate timing signal in the specific period. A data driving circuit is included for converting the interleaved digital video data into an analog voltage in response to the data timing signal, and supplying the analog voltage to data lines in the specific period.
    Type: Grant
    Filed: May 22, 2008
    Date of Patent: April 21, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Hong Sung Song, Woong Ki Min, Su Hyuk Jang
  • Patent number: 9922607
    Abstract: A liquid crystal display (LCD) device includes a liquid crystal display panel having a matrix of liquid crystal cells defined by crossings of the data lines and the gate lines. The LCD device includes a data driving circuit for inverting a polarity of a data voltage in response to a polarity control signal, and supplying the polarity-inverted data voltage to an associated one of the data lines in response to a source output enable signal; a gate driving circuit for sequentially supplying a scan voltage to each of the gate lines in response to a gate output enable signal; and a controller for modulating the polarity control signal such that data voltages having the same polarity are respectively supplied to liquid crystal cells along one gate line in consecutive frame periods and generating the source output enable signal and the gate output enable signal.
    Type: Grant
    Filed: May 22, 2008
    Date of Patent: March 20, 2018
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Hong Sung Song, Woong Ki Min, Su Hyuk Jang
  • Patent number: 9536489
    Abstract: The exemplary embodiment relates to a liquid crystal display device. The liquid crystal display according to the exemplary embodiment includes: a liquid crystal display panel on which a plurality of data lines cross a plurality of gate lines, wherein each data line and each gate line is connected to a thin film transistor; a source drive IC supplying data voltages to the data lines; a gate drive IC supplying gate pulses to the gate lines; a system board equipped with a scaler that transmits data from the scaler through an interface that comprises 4-pair of data transmitting lines; and a control board equipped with a timing controller that receives the data through the interface and supplies the data to the source drive IC and controls the operating timing of the source drive IC and the gate drive IC.
    Type: Grant
    Filed: January 15, 2014
    Date of Patent: January 3, 2017
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Hong Sung Song, Chaeyoul Cho, Woongki Min, Yonggi Son, Suhyuk Jang
  • Patent number: 9483991
    Abstract: Disclosed is an organic light emitting display device which includes: a liquid crystal display panel configured to include at least one common electrode bar and a plurality of divisional areas defined along a length direction of the at least one common electrode bar; a common voltage controller configured to divide a single frame into a plurality of intervals corresponding to the plurality of divisional areas and generate a common voltage control signal in each interval; and a common voltage compensator configured to generate a compensated common voltage on the basis of the common voltage control signal in each interval and apply the compensated common voltage to the at least one common electrode bar of the liquid crystal display panel.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: November 1, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: Woong Ki Min, Hong Sung Song, Dong Kyoung Oh, Yong Ki Son, Su Hyuk Jang
  • Publication number: 20160284292
    Abstract: Disclosed is an organic light emitting display device which includes: a liquid crystal display panel configured to include at least one common electrode bar and a plurality of divisional areas defined along a length direction of the at least one common electrode bar; a common voltage controller configured to divide a single frame into a plurality of intervals corresponding to the plurality of divisional areas and generate a common voltage control signal in each interval; and a common voltage compensator configured to generate a compensated common voltage on the basis of the common voltage control signal in each interval and apply the compensated common voltage to the at least one common electrode bar of the liquid crystal display panel.
    Type: Application
    Filed: June 9, 2016
    Publication date: September 29, 2016
    Inventors: Woong Ki MIN, Hong Sung SONG, Dong Kyoung OH, Yong Ki SON, Su Hyuk JANG
  • Patent number: 9390671
    Abstract: Disclosed is a liquid crystal display panel configured to include at least one common electrode bar and a plurality of divisional areas defined along a length direction of the at least one common electrode bar; a common voltage controller configured to divide a single frame into a plurality of intervals corresponding to the plurality of divisional areas and generate a common voltage control signal in each interval; and a common voltage compensator configured to generate a compensated common voltage on the basis of the common voltage control signal in each interval and apply the compensated common voltage to the at least one common electrode bar of the liquid crystal display panel.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: July 12, 2016
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Woong Ki Min, Hong Sung Song, Dong Kyoung Oh, Yong Ki Son, Su Hyuk Jang
  • Patent number: 9304344
    Abstract: Disclosed is a display device that includes a display panel, a guide frame configured to support the display panel, a plurality of fixers arranged between the display panel and the guide frame and include an accommodating part, a cover member inserted into the accommodating part of each fixer and configured to fix the display panel to the guide frame together with the plurality of fixers, and a pad disposed between the display panel and the guide frame and configured to prevent penetration of a foreign material.
    Type: Grant
    Filed: October 10, 2013
    Date of Patent: April 5, 2016
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Deuk Woo Lee, Hong Sung Song
  • Patent number: 9305480
    Abstract: A display having a data driving integrated circuit includes N number of output channels (where N is an integer) having at least two regions including a first output channel and an Nth output channel, a data output channel group including M data output channels (where M is an integer less than N), the M data output channels supplying pixel data to a corresponding number of the data lines in accordance with a desired resolution of the display, wherein (N?M) output channels are not supplied with pixel data, and the (N?M) output channels are located between the first output channel and the Nth output channel, and a channel selector selecting the M data output channels.
    Type: Grant
    Filed: February 6, 2009
    Date of Patent: April 5, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: Sin Ho Kang, Hong Sung Song, Jin Cheol Hong
  • Patent number: 8847946
    Abstract: A liquid crystal display (LCD) device and a driving method thereof for improving a working efficiency of the LCD and reducing manufacturing costs. The liquid crystal display device includes a liquid crystal display panel having liquid crystal cells at crossings of data lines and gate lines, data integrated circuit supplying pixel data via a plurality of data output channels, a gate integrated circuit driving the gate lines, a channel selector for selecting the plurality of data output channels of the data integrated circuits in accordance with a number of the data lines wherein only the selected data output channels contain the pixel data, and a timing controller for controlling the data integrated circuit and the gate integrated circuit.
    Type: Grant
    Filed: August 10, 2009
    Date of Patent: September 30, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Sin Ho Kang, Hong Sung Song, Jin Cheol Hong, Seung Kuk An
  • Patent number: 8797243
    Abstract: A method of driving a liquid crystal display device includes supplying data voltages to a pixel on a moving path of an image during a scroll operation, wherein the data voltages displaying the image have opposite polarities.
    Type: Grant
    Filed: September 26, 2007
    Date of Patent: August 5, 2014
    Assignee: LG Display Co. Ltd.
    Inventors: Woong-Ki Min, Hong-Sung Song
  • Publication number: 20140176849
    Abstract: Disclosed is a display device that includes a display panel, a guide frame configured to support the display panel, a plurality of fixers arranged between the display panel and the guide frame and include an accommodating part, a cover member inserted into the accommodating part of each fixer and configured to fix the display panel to the guide frame together with the plurality of fixers, and a pad disposed between the display panel and the guide frame and configured to prevent penetration of a foreign material.
    Type: Application
    Filed: October 10, 2013
    Publication date: June 26, 2014
    Applicant: LG Display Co., Ltd.
    Inventors: Deuk Woo LEE, Hong Sung SONG
  • Publication number: 20140125570
    Abstract: The exemplary embodiment relates to a liquid crystal display device. The liquid crystal display according to the exemplary embodiment includes: a liquid crystal display panel on which a plurality of data lines cross a plurality of gate lines, wherein each data line and each gate line is connected to a thin film transistor; a source drive IC supplying data voltages to the data lines; a gate drive IC supplying gate pulses to the gate lines; a system board equipped with a scaler that transmits data from the scaler through an interface that comprises 4-pair of data transmitting lines; and a control board equipped with a timing controller that receives the data through the interface and supplies the data to the source drive IC and controls the operating timing of the source drive IC and the gate drive IC.
    Type: Application
    Filed: January 15, 2014
    Publication date: May 8, 2014
    Applicant: LG Display Co., Ltd.
    Inventors: Hong Sung Song, Chaeyoul Cho, Woongki Min, Yonggi Son, Suhyuk Jang
  • Patent number: 8678633
    Abstract: A lamp electrode printed circuit board of a backlight unit includes an insulating substrate, first and second conductive patterns on the insulating substrates along a first direction and in parallel, a connecting pattern extending from one of the first and second conductive patterns, a connecting pad at one end of the connecting pattern, auxiliary patterns extending from an edge of the connecting pad, and lamp holders electrically connected to the first and second conductive patterns and spaced apart from each other along the first direction.
    Type: Grant
    Filed: May 15, 2008
    Date of Patent: March 25, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Byung-Jin Choi, Hong-Sung Song, Woong-Ki Min
  • Patent number: 8654269
    Abstract: A liquid crystal display panel capable of reducing a capacitance of a parasitic capacitor between a data line and a pixel electrode. The liquid crystal display panel comprises: a thin film transistor at a crossing of a gate line and a data line, liquid crystal cells including a pixel electrode connected to the thin film transistor; first shield patterns in the liquid crystal cells, each shield pattern being parallel to the data line without overlapping the data line, wherein the shield patterns are insulated from and overlap with an outer portion of the pixel electrode; and a common line arrayed to connect the shield patterns for each the liquid crystal cell.
    Type: Grant
    Filed: July 2, 2012
    Date of Patent: February 18, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Hong Sung Song, Sai Chang Yun, Sang Chang Yun, Jae Woo Lee
  • Patent number: 8638323
    Abstract: Disclosed is a system and method for correcting a gamma for shortening a gamma correction time period and improving gamma correction efficiency and reliability thereof, and simplifying a gamma correction device for reducing a production cost of image display devices.
    Type: Grant
    Filed: December 30, 2008
    Date of Patent: January 28, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Joo Hong Lee, Hong Sung Song, Oh Hyun Lee, Woong Ki Min
  • Patent number: 8633883
    Abstract: The exemplary embodiment relates to a liquid crystal display device.
    Type: Grant
    Filed: December 10, 2008
    Date of Patent: January 21, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Hong Sung Song, Chaeyoul Cho, Woongki Min, Yonggi Son, Suhyuk Jang
  • Patent number: 8624937
    Abstract: A gray scale voltage generator includes a voltage dividing resistor string to generate blue (B), red (R), and green (G) gamma voltage signals, the voltage dividing resistor string including a B gamma voltage signal generating section, a R/G gamma voltage generating section, and a common (COM) gamma voltage generating section to individually control a B gray scale voltage and a R/G gray scale voltage to maintain a constant color temperature.
    Type: Grant
    Filed: November 20, 2008
    Date of Patent: January 7, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Joo Hong Lee, Hong Sung Song, Woong Ki Min, Yong Gi Son
  • Patent number: 8605023
    Abstract: An apparatus and method for driving an LCD device is disclosed, in which an inversion method of an LCD panel is changed depending on a specific pattern of image data so as to improve picture quality of images displayed on the LCD panel. The apparatus for driving an LCD device includes an LCD panel displaying images, a polarity control signal generator comparing image data with pattern data previously stored for the unit of frame and generating a polarity control signal in accordance with the compared result, a data driver converting an inversion method in accordance with the polarity control signal and supplying the received image data to the LCD panel, a gate driver supplying scan pulses to the LCD panel, and a timing controller controlling the data driver and the gate driver.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: December 10, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Hong Sung Song, Oh Hyun Lee, Woong Ki Min, Hyuk Jin Kim
  • Publication number: 20130314393
    Abstract: Disclosed is an organic light emitting display device which includes: a liquid crystal display panel configured to include at least one common electrode bar and a plurality of divisional areas defined along a length direction of the at least one common electrode bar; a common voltage controller configured to divide a single frame into a plurality of intervals corresponding to the plurality of divisional areas and generate a common voltage control signal in each interval; and a common voltage compensator configured to generate a compensated common voltage on the basis of the common voltage control signal in each interval and apply the compensated common voltage to the at least one common electrode bar of the liquid crystal display panel.
    Type: Application
    Filed: December 21, 2012
    Publication date: November 28, 2013
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Woong Ki MIN, Hong Sung SONG, Dong Kyoung OH, Yong Ki SON, Su Hyuk JANG
  • Patent number: 8493418
    Abstract: An LCD has a drive power supply structure simplified to simplify manufacturing processes of LCDs and to reduce manufacturing costs thereof. The LCD includes a liquid crystal panel, a drive unit, a controller, a backlight drive unit, and a drive voltage generator. The liquid crystal panel includes image display regions. The drive unit drives gate and data lines in the panel. The controller controls the drive unit using image data and synchronization signals from outside. The drive voltage generator is provided on a system or at least one source printed circuit board on which at least one of the drive unit or the controller is formed and converts a voltage level of a drive power provided from outside to generate drive powers of different voltage levels and provides the drive powers to the drive unit, the controller, and the backlight drive unit.
    Type: Grant
    Filed: December 30, 2009
    Date of Patent: July 23, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Woong-Ki Min, Hong-Sung Song, Ju-Young Lee