Patents by Inventor Sun Young Kwon

Sun Young Kwon 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: 9422477
    Abstract: A liquid crystal composition includes a first class liquid crystal compound and a second class liquid crystal compound, wherein the first class liquid crystal compound includes one or more compounds represented by Chemical Formulas 1 to 8: in which X and Y are independently a C1-C7 alkyl group.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: August 23, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Keun Chan Oh, Ji Hong Bae, Kyung Min Kim, Sun Young Kwon, Jun Hyeok Bang
  • Publication number: 20160216557
    Abstract: There is provided a liquid crystal display (LCD). The LCD includes a thin film transistor (TFT) disposed on a first substrate, a pixel electrode connected to the TFT, a second substrate that faces the first substrate, a liquid crystal layer formed between the first substrate and the second substrate, a light emitting layer positioned between the liquid crystal layer and the second substrate, a first polarizing plate positioned on a rear surface of the first substrate and including a collimating film and a second polarizing plate positioned between the light emitting layer and the liquid crystal layer.
    Type: Application
    Filed: October 26, 2015
    Publication date: July 28, 2016
    Inventors: Soon Joon RHO, Sun Young KWON, Kyung Min KIM, Keun Chan OH
  • Publication number: 20160200976
    Abstract: A liquid crystal composition includes a first class including a first compound represented by Chemical Formula 1, wherein the first compound is 13 to 18 parts by weight based on 100 parts by weight of the total liquid crystal composition, and a second compound represented by Chemical Formula 2, wherein the second compound is 8 to 13 parts by weight based on 100 parts by weight of the total liquid crystal composition, a second class including a third compound represented by Chemical Formula 3. Chemical Formulas 1, 2, and 3 are represented by: and wherein R and R? are, independently of each other, a hydrogen atom, or an unsubstituted or substituted C1 to C7 alkyl group.
    Type: Application
    Filed: July 23, 2015
    Publication date: July 14, 2016
    Inventors: Kang Seob JEONG, Kyung Seon TAK, Min-Hee KIM, Kyung Hee LEE, Sun Young KWON, Joon-Hyung PARK, Ji Hong BAE, Jong Ho SON, Keun Chan OH
  • Publication number: 20160189656
    Abstract: A display device including: a liquid crystal panel assembly including pixels; a data driver applying a data voltage to lines which is connected to the pixels; and a common voltage generator providing voltage to the liquid crystal panel assembly, in which the voltage is an optimal voltage for a maximum grayscale at which a flicker is minimized while a maximum grayscale is applied to the pixels, the data driver applies the data voltage with the minimum grayscale to the data lines so that a negative data voltage with a minimum grayscale is higher than the common voltage by a first voltage level or more, and each of the pixels includes a first subpixel and a second subpixel, and when the data voltage is applied to the pixel, a pixel voltage of the first subpixel and a pixel voltage of the second subpixel are different.
    Type: Application
    Filed: June 18, 2015
    Publication date: June 30, 2016
    Inventors: Joon-Hyung PARK, Sun Young KWON, Min-Hee KIM, Ji Hong BAE, Jong Ho SON, Keun Chan OH, Kyung Hee LEE, Kang Seob JEONG, Kyung Seon TAK
  • Publication number: 20160122645
    Abstract: A liquid crystal composition includes a first class liquid crystal compound and a second class liquid crystal compound, wherein the first class liquid crystal compound includes one or more compounds represented by Chemical Formulas 1 to 8: in which X and Y are independently a C1-C7 alkyl group.
    Type: Application
    Filed: May 7, 2015
    Publication date: May 5, 2016
    Inventors: Keun Chan OH, Ji Hong BAE, Kyung Min KIM, Sun Young KWON, Jun Hyeok BANG
  • Publication number: 20150267118
    Abstract: A liquid crystal composition includes: a first category compound and a second category compound. The first category compound includes a first compound represented by Chemical Formula 1 and a second compound represented by Chemical Formula 2, where each R is independently an alkyl group having a carbon number of 1 to 7, and each R may be the same or different.
    Type: Application
    Filed: October 21, 2014
    Publication date: September 24, 2015
    Inventors: Joon-Hyung PARK, Sun Young KWON, Min-Jae KIM, Min-Hee KIM, Jong Ho SON, Keun Chan OH, Kyung Hee LEE, Kang Seob JEONG, Kyung Seon TAK
  • 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: 8199099
    Abstract: An apparatus and method for driving a liquid crystal display device are disclosed. The apparatus includes a liquid crystal panel with pixels defined by data and gate lines. A gate driver provides different gate pulses to the odd-column pixels than to the even-column pixels. The gate pulses have different voltages and/or widths. Data drivers provide data voltages having a positive or negative polarity to the data lines. A timing controller controls the gate and data drivers and supplies gate clock pulses that have different voltages and/or widths to the gate driver.
    Type: Grant
    Filed: August 4, 2009
    Date of Patent: June 12, 2012
    Assignee: LG Display Co., Ltd
    Inventors: Sun Young Kwon, Do Heon Kim, Su Hwan Moon, Ji Eun Chae
  • 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: 8022919
    Abstract: A liquid crystal display device includes a liquid crystal display panel having a number of gate lines, a gate driver having a number of gate channels, wherein the number of gate channels is different than the number of gate lines, and a timing controller to apply a gate shift clock signal to the gate driver, the gate shift clock signal having at least one dummy shift clock signal.
    Type: Grant
    Filed: June 21, 2006
    Date of Patent: September 20, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Sun Young Kwon, Jung Wook Shin
  • Patent number: 7714854
    Abstract: A driving apparatus for a liquid crystal display device includes a liquid crystal display panel having a plurality of data lines and gate lines arranged in a matrix configuration, a data driver for supplying video data to the data lines, a gate driver for supplying gate pulses to the gate lines, and a timing controller for controlling polarity of the video data by supplying a polarity inversion signal to the data driver and controlling a timing of the data driver and the gate driver according to a number of horizontal synchronization signals supplied during a data blanking period, wherein a plurality of the polarity inversion signals are different from each other.
    Type: Grant
    Filed: October 13, 2006
    Date of Patent: May 11, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Jong Dae Kim, Sun Young Kwon
  • Publication number: 20090295784
    Abstract: An apparatus and method for driving a liquid crystal display device are disclosed. The apparatus includes a liquid crystal panel with pixels defined by data and gate lines. A gate driver provides different gate pulses to the odd-column pixels than to the even-column pixels. The gate pulses have different voltages and/or widths. Data drivers provide data voltages having a positive or negative polarity to the data lines. A timing controller controls the gate and data drivers and supplies gate clock pulses that have different voltages and/or widths to the gate driver.
    Type: Application
    Filed: August 4, 2009
    Publication date: December 3, 2009
    Applicant: LG Display Co., Ltd.
    Inventors: Sun Young Kwon, Do Heon Kim, Su Hwan Moon, Ji Eun Chae
  • 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: 7586476
    Abstract: An apparatus and method for driving a liquid crystal display device are disclosed. The apparatus includes a liquid crystal panel with pixels defined by data and gate lines. A gate driver provides different gate pulses to the odd-column pixels than to the even-column pixels. The gate pulses have different voltages and/or widths. Data drivers provide data voltages having a positive or negative polarity to the data lines. A timing controller controls the gate and data drivers and supplies gate clock pulses that have different voltages and/or widths to the gate driver.
    Type: Grant
    Filed: August 19, 2005
    Date of Patent: September 8, 2009
    Assignee: LG. Display Co., Ltd.
    Inventors: Sun Young Kwon, Do Heon Kim, Su Hwan Moon, Ji Eun Chae
  • 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: 7477272
    Abstract: A driving method and device for displaying a video signal of a normal mode having an aspect ratio of 4 to 3 in a wide mode LCD device having an aspect ratio of 16 to 9 are provided. The method includes the steps of outputting a source start pulse (SSP) signal; latching pixel data for a black display by using a main clock signal having a short period synchronized to the SSP signal; first skipping data latch during a first transition period of the video signal; latching pixel data corresponding to a normal mode by using a clock signal having a long period, and outputting the latched pixel data; and second skipping data latch during a second transition period of the video signal.
    Type: Grant
    Filed: December 22, 2003
    Date of Patent: January 13, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Jung 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