Patents by Inventor Jong Sang Baek

Jong Sang Baek 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: 8648783
    Abstract: A driving apparatus and a method for a liquid crystal display wherein a picture can be inspected by a specific image signal when an image signal is not applied is provided. In the driving apparatus, an image signal processor extracts a complex synchronizing signal and a first image signal from a complex image signal input from an external source. An image signal generator generates a second image signal. An input signal detector counts the pulses in the complex synchronizing signal to generate a selection signal. An image signal selector selectively outputs any one of the first image signal from the image signal processor and the second image signal from the image signal generator in response to the selection signal. A data driver applies an output image signal selected and output by the image signal selector to the liquid crystal display panel.
    Type: Grant
    Filed: September 29, 2004
    Date of Patent: February 11, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Jong Sang Baek, Sun Young Kwon
  • Patent number: 8154490
    Abstract: A apparatus and method for driving a liquid crystal display that minimizes the generation of electro-magnetic interference (EMI) in a cost effective manner includes a gate control signal generator that generates a gate control signal using a externally inputted synchronizing signal, a data control signal generator that generates a data control signal using the synchronizing signal, a data aligner that re-aligns externally inputted video data, a plurality of buffers at output terminals of the gate control signal generator, the data control signal generator and the data aligner, and a control unit that applies control signals to the buffers to control current values of signals outputted by the buffers.
    Type: Grant
    Filed: May 28, 2008
    Date of Patent: April 10, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Jong Sang Baek, Sun Young Kwon
  • Patent number: 8004509
    Abstract: A liquid crystal display device and a driving method thereof that are adaptive for detecting a presence and a frequency range of an input signal applied to the liquid crystal display. In the device, a timing controller is provided with a signal presence determiner for detecting an application of an input signal from an interface.
    Type: Grant
    Filed: August 3, 2010
    Date of Patent: August 23, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Jong Sang Baek, Chang Gon Kim
  • Publication number: 20100302220
    Abstract: A liquid crystal display device and a driving method thereof that are adaptive for detecting a presence and a frequency range of an input signal applied to the liquid crystal display. In the device, a timing controller is provided with a signal presence determiner for detecting an application of an input signal from an interface.
    Type: Application
    Filed: August 3, 2010
    Publication date: December 2, 2010
    Inventors: Jong Sang Baek, Chang Gon Kim
  • Patent number: 7791599
    Abstract: A liquid crystal display device and a driving method thereof that are adaptive for detecting a presence and a frequency range of an input signal applied to the liquid crystal display. In the device, a timing controller is provided with a signal presence determiner for detecting an application of an input signal from an interface.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: September 7, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Jong Sang Baek, Chang Gon Kim
  • Patent number: 7609329
    Abstract: A driving apparatus for a liquid crystal display capable of adjusting a field area displayed on a liquid crystal display panel at the exterior thereof is disclosed. In the apparatus, an image signal processor separates a television image signal from a complex image signal and separates a complex synchronizing signal. A liquid crystal display panel displays the television image signal. A timing controller generates a source start pulse determining a display start time of the television image signal displayed on the liquid crystal display panel using an internal clock signal and the complex synchronizing signal from the image signal processor. A delay circuit delays the internal clock signal to apply it to the timing controller.
    Type: Grant
    Filed: June 17, 2004
    Date of Patent: October 27, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Jong Sang Baek, Sun Young Kwon
  • Patent number: 7528821
    Abstract: A method of driving a liquid crystal display to eliminate stripe-shaped noise when a picture screen is displayed on an enlarged viewing area includes dividing a liquid crystal into a plurality of blocks, and setting widths of scanning pulses for a gate electrode pair supplied with the same data differently for each block, wherein the gate electrode pair includes first and second gate lines.
    Type: Grant
    Filed: June 25, 2004
    Date of Patent: May 5, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Jong Sang Baek, Sun Young Kwon
  • Patent number: 7432901
    Abstract: A driving apparatus for a liquid crystal display that reduces a residual direct current component from flowing in a liquid crystal is disclosed. In the apparatus, a liquid crystal display panel has liquid crystal cells at crossing of gate lines and data lines. An image signal processor separates a television image signal from a complex image signal and converts a polarity of the television image signal in response to a polarity inversion signal. A timing controller generates the gate control signal for time-dividing the plurality of gate lines to sequentially drive them during one horizontal period and driving the gate lines during one horizontal period and then applying it to the gate driver, and that generates the polarity inversion signal inverted for each one horizontal period and then applying it to the image signal processor.
    Type: Grant
    Filed: June 29, 2004
    Date of Patent: October 7, 2008
    Assignee: LG Display Co., Ltd.
    Inventors: Jong Sang Baek, Sun Young Kwon
  • Publication number: 20080231619
    Abstract: A apparatus and method for driving a liquid crystal display that minimizes the generation of electro-magnetic interference (EMI) in a cost effective manner includes a gate control signal generator that generates a gate control signal using a externally inputted synchronizing signal, a data control signal generator that generates a data control signal using the synchronizing signal, a data aligner that re-aligns externally inputted video data, a plurality of buffers at output terminals of the gate control signal generator, the data control signal generator and the data aligner, and a control unit that applies control signals to the buffers to control current values of signals outputted by the buffers.
    Type: Application
    Filed: May 28, 2008
    Publication date: September 25, 2008
    Inventors: Jong Sang Baek, Sun Young Kwon
  • Patent number: 7394443
    Abstract: A apparatus and method for driving a liquid crystal display that minimizes the generation of electromagnetic interference (EMI) in a cost effective manner includes a gate control signal generator that generates a gate control signal using a externally inputted synchronizing signal, a data control signal generator that generates a data control signal using the synchronizing signal, a data aligner that re-aligns externally inputted video data, a plurality of buffers at output terminals of the gate control signal generator, the data control signal generator and the data aligner, and a control unit that applies control signals to the buffers to control current values of signals outputted by the buffers.
    Type: Grant
    Filed: June 25, 2004
    Date of Patent: July 1, 2008
    Assignee: LG Display Co., Ltd.
    Inventors: Jong Sang Baek, Sun Young Kwon
  • Patent number: 7362342
    Abstract: A driving apparatus and apparatus for a liquid crystal display wherein an image format of an NTSC image signal can be selectively converted in response to an instruction of a user. In the apparatus, a liquid crystal display panel has liquid crystal cells arranged at intersections between gate lines and data lines to display an image signal in an image format different from an input image signal. A switch generates a pulse signal by an operation of a user. A counter counts said pulse signal. A timing controller changes an image format of said image signal displayed on the liquid crystal display panel in response to an input signal from the counter.
    Type: Grant
    Filed: June 23, 2004
    Date of Patent: April 22, 2008
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Jong Sang Baek, Sun Young Kwon
  • Patent number: 7352349
    Abstract: A method and apparatus for driving a liquid crystal display for reducing the number of data lines is disclosed. In the apparatus, a timing controller receives red sub-pixel data, green sub-pixel data and blue sub-pixel data from the exterior thereof and then divides the received data into odd-numbered sub-pixel data and even-numbered sub-pixel data. A data driver receives the odd-numbered sub-pixel data and the even-numbered sub-pixel data from the timing controller during one horizontal period and then applies the received odd-numbered and even-numbered sub-pixel data to data lines during the one horizontal period.
    Type: Grant
    Filed: June 23, 2004
    Date of Patent: April 1, 2008
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Jong Sang Baek, Sun Young Kwon
  • Patent number: 7310094
    Abstract: A liquid crystal display device that are adapted to display a certain information to a user when no signal is input after a power was applied to the liquid crystal display device. In the device, a liquid crystal display panel has pixel electrodes arranged in a matrix type. A timing controller generates and outputs control signals for driving the liquid crystal display panel in response to a timing synchronizing signal inputted from the exterior thereof, and re-arranges and outputs an input data. A drive circuit is connected between the liquid crystal display panel and the timing controller to display a data inputted from the timing controller on the liquid crystal display panel in response to the control signal. An oscillator generates a pre-synchronizing signal having a desired frequency to apply the same to the timing controller.
    Type: Grant
    Filed: December 9, 2002
    Date of Patent: December 18, 2007
    Assignee: LG Phillips LCD Co., Ltd
    Inventor: Jong Sang Baek
  • Patent number: 7190343
    Abstract: A liquid crystal display including a gate driver driving gate lines on a liquid crystal display panel, a timing controller controlling the gate driver, and a masking part selectively intercepting a gate output enable signal corresponding to an abnormal state of a gate high voltage, wherein the gate output enable signal is supplied to the gate driver from the timing controller.
    Type: Grant
    Filed: September 25, 2003
    Date of Patent: March 13, 2007
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Jong Sang Baek, Sun Young Kwon
  • Patent number: 7123252
    Abstract: A liquid crystal display device with a multi-timing controller that generates a timing signal according to an individual display standard from a control signal according to various display standards to drive the liquid crystal display device. In the device, a liquid crystal display panel has a display standard corresponding to an arranged pixel. An interface receives a data inputted from the exterior thereof and a control signal corresponding to the display standard. A timing controller latches and outputs a data inputted from the interface, and generates and outputs timing signals for driving the liquid crystal display panel from the control signal. A driving circuit receives the timing signals from the timing controller to display a picture corresponding to the data on the liquid crystal display panel. In the timing controller, a display standard set part sets one display standard in response to a plurality of display standards and generates a setting signal corresponding to the display standard.
    Type: Grant
    Filed: August 30, 2000
    Date of Patent: October 17, 2006
    Assignee: LG.Philips LCD Co., Ltd.
    Inventor: Jong Sang Baek
  • Patent number: 6930664
    Abstract: A liquid crystal display capable of diagnosing an abnormal driving state of a system and a liquid crystal display panel. In the liquid crystal display, a liquid crystal display panel has pixel cells arranged in a matrix pattern. A system supplies a timing synchronizing signal and video data. A timing controller generates timing control signals for driving the liquid crystal display panel in correspondence with the timing synchronizing signal inputted from the system, and re-arranges and outputs the input video data. A switching device generates a desired driving control signal. A self-diagnosing circuit applies a specific data to the liquid crystal display panel in response to the driving control signal. A driver is connected between the liquid crystal display panel and the timing controller to display the video data inputted from the timing controller on the liquid crystal display panel in correspondence with the control signals.
    Type: Grant
    Filed: June 21, 2002
    Date of Patent: August 16, 2005
    Assignee: LG. Philips LCD Co., Ltd.
    Inventors: Jong Dae Kim, Jong Sang Baek
  • Patent number: 6867759
    Abstract: A liquid crystal display device for restraining a generation of transient current is disclosed. In the device, a line memory divides a data for at least one line inputted from the exterior thereof into a plurality of groups to store the divided data therein and outputs the data at a desired unit from each of the groups. A driving circuit includes n driver integrated circuits (wherein n is an integer) that are connected to the line memory and a liquid crystal display panel to drive the liquid crystal display panel in response to the data outputted from the line memory. A timing controller is connected to the line memory and the driving circuit to receive a data clock inputted from the exterior thereof for outputting the data from the plurality of groups of said line memory to the driving circuit every period of the data clock in response to a time corresponding to the number of said groups.
    Type: Grant
    Filed: September 6, 2000
    Date of Patent: March 15, 2005
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Jong Sang Baek, Chang Gone Kim
  • Publication number: 20040263448
    Abstract: A method and apparatus for driving a liquid crystal display for reducing the number of data lines is disclosed. In the apparatus, a timing controller receives red sub-pixel data, green sub-pixel data and blue sub-pixel data from the exterior thereof and then divides the received data into odd-numbered sub-pixel data and even-numbered sub-pixel data. A data driver receives the odd-numbered sub-pixel data and the even-numbered sub-pixel data from the timing controller during one horizontal period and then applies the received odd-numbered and even-numbered sub-pixel data to data lines during the one horizontal period.
    Type: Application
    Filed: June 23, 2004
    Publication date: December 30, 2004
    Inventors: Jong Sang Baek, Sun Young Kwon
  • Publication number: 20040263454
    Abstract: A driving apparatus for a liquid crystal display that reduces a residual direct current component from flowing in a liquid crystal is disclosed. In the apparatus, a liquid crystal display panel has liquid crystal cells at crossing of gate lines and data lines. An image signal processor separates a television image signal from a complex image signal and converts a polarity of the television image signal in response to a polarity inversion signal. A timing controller generates the gate control signal for time-dividing the plurality of gate lines to sequentially drive them during one horizontal period and driving the gate lines during one horizontal period and then applying it to the gate driver, and that generates the polarity inversion signal inverted for each one horizontal period and then applying it to the image signal processor.
    Type: Application
    Filed: June 29, 2004
    Publication date: December 30, 2004
    Inventors: Jong Sang Baek, Sun Young Kwon
  • Publication number: 20040263449
    Abstract: A driving apparatus and apparatus for a liquid crystal display wherein an image format of an NTSC image signal can be selectively converted in response to an instruction of a user. In the apparatus, a liquid crystal display panel has liquid crystal cells arranged at intersections between gate lines and data lines to display an image signal in an image format different from an input image signal. A switch generates a pulse signal by an operation of a user. A counter counts said pulse signal. A timing controller changes an image format of said image signal displayed on the liquid crystal display panel in response to an input signal from the counter.
    Type: Application
    Filed: June 23, 2004
    Publication date: December 30, 2004
    Inventors: Jong Sang Baek, Sun Young Kwon