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).
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Patent number: 10629146Abstract: 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: GrantFiled: May 22, 2008Date of Patent: April 21, 2020Assignee: LG DISPLAY CO., LTD.Inventors: Hong Sung Song, Woong Ki Min, Su Hyuk Jang
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Patent number: 9922607Abstract: 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: GrantFiled: May 22, 2008Date of Patent: March 20, 2018Assignee: LG DISPLAY CO., LTD.Inventors: Hong Sung Song, Woong Ki Min, Su Hyuk Jang
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Patent number: 9536489Abstract: 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: GrantFiled: January 15, 2014Date of Patent: January 3, 2017Assignee: LG DISPLAY CO., LTD.Inventors: Hong Sung Song, Chaeyoul Cho, Woongki Min, Yonggi Son, Suhyuk Jang
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Patent number: 9483991Abstract: 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: GrantFiled: June 9, 2016Date of Patent: November 1, 2016Assignee: LG Display Co., Ltd.Inventors: Woong Ki Min, Hong Sung Song, Dong Kyoung Oh, Yong Ki Son, Su Hyuk Jang
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Publication number: 20160284292Abstract: 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: ApplicationFiled: June 9, 2016Publication date: September 29, 2016Inventors: Woong Ki MIN, Hong Sung SONG, Dong Kyoung OH, Yong Ki SON, Su Hyuk JANG
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Patent number: 9390671Abstract: 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: GrantFiled: December 21, 2012Date of Patent: July 12, 2016Assignee: LG DISPLAY CO., LTD.Inventors: Woong Ki Min, Hong Sung Song, Dong Kyoung Oh, Yong Ki Son, Su Hyuk Jang
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Patent number: 9304344Abstract: 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: GrantFiled: October 10, 2013Date of Patent: April 5, 2016Assignee: LG DISPLAY CO., LTD.Inventors: Deuk Woo Lee, Hong Sung Song
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Patent number: 9305480Abstract: 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: GrantFiled: February 6, 2009Date of Patent: April 5, 2016Assignee: LG Display Co., Ltd.Inventors: Sin Ho Kang, Hong Sung Song, Jin Cheol Hong
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Patent number: 8847946Abstract: 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: GrantFiled: August 10, 2009Date of Patent: September 30, 2014Assignee: LG Display Co., Ltd.Inventors: Sin Ho Kang, Hong Sung Song, Jin Cheol Hong, Seung Kuk An
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Patent number: 8797243Abstract: 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: GrantFiled: September 26, 2007Date of Patent: August 5, 2014Assignee: LG Display Co. Ltd.Inventors: Woong-Ki Min, Hong-Sung Song
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Publication number: 20140176849Abstract: 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: ApplicationFiled: October 10, 2013Publication date: June 26, 2014Applicant: LG Display Co., Ltd.Inventors: Deuk Woo LEE, Hong Sung SONG
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Publication number: 20140125570Abstract: 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: ApplicationFiled: January 15, 2014Publication date: May 8, 2014Applicant: LG Display Co., Ltd.Inventors: Hong Sung Song, Chaeyoul Cho, Woongki Min, Yonggi Son, Suhyuk Jang
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Patent number: 8678633Abstract: 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: GrantFiled: May 15, 2008Date of Patent: March 25, 2014Assignee: LG Display Co., Ltd.Inventors: Byung-Jin Choi, Hong-Sung Song, Woong-Ki Min
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Patent number: 8654269Abstract: 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: GrantFiled: July 2, 2012Date of Patent: February 18, 2014Assignee: LG Display Co., Ltd.Inventors: Hong Sung Song, Sai Chang Yun, Sang Chang Yun, Jae Woo Lee
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Patent number: 8638323Abstract: 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: GrantFiled: December 30, 2008Date of Patent: January 28, 2014Assignee: LG Display Co., Ltd.Inventors: Joo Hong Lee, Hong Sung Song, Oh Hyun Lee, Woong Ki Min
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Patent number: 8633883Abstract: The exemplary embodiment relates to a liquid crystal display device.Type: GrantFiled: December 10, 2008Date of Patent: January 21, 2014Assignee: LG Display Co., Ltd.Inventors: Hong Sung Song, Chaeyoul Cho, Woongki Min, Yonggi Son, Suhyuk Jang
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Patent number: 8624937Abstract: 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: GrantFiled: November 20, 2008Date of Patent: January 7, 2014Assignee: LG Display Co., Ltd.Inventors: Joo Hong Lee, Hong Sung Song, Woong Ki Min, Yong Gi Son
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Patent number: 8605023Abstract: 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: GrantFiled: December 28, 2006Date of Patent: December 10, 2013Assignee: LG Display Co., Ltd.Inventors: Hong Sung Song, Oh Hyun Lee, Woong Ki Min, Hyuk Jin Kim
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Publication number: 20130314393Abstract: 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: ApplicationFiled: December 21, 2012Publication date: November 28, 2013Applicant: LG DISPLAY CO., LTD.Inventors: Woong Ki MIN, Hong Sung SONG, Dong Kyoung OH, Yong Ki SON, Su Hyuk JANG
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Patent number: 8493418Abstract: 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: GrantFiled: December 30, 2009Date of Patent: July 23, 2013Assignee: LG Display Co., Ltd.Inventors: Woong-Ki Min, Hong-Sung Song, Ju-Young Lee