Patents by Inventor Hyun-Seok Ko

Hyun-Seok Ko 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).

  • Publication number: 20140092145
    Abstract: A driving method of a display device is provided. The display device comprises a display panel having a plurality of pixels, a signal controller for controlling operation of the display panel, and a memory connected to the signal controller. The driving method comprises receiving an input image signal for a motion picture or a stationary image, and if the input image signal for the stationary image is received, determining whether the stationary image includes at least one weak pattern, setting a first frequency as a driving frequency to display the stationary image if the stationary image does not include a weak pattern, and setting a second frequency that is higher than the first frequency as the driving frequency if the stationary image includes the at least one weak pattern.
    Type: Application
    Filed: January 25, 2013
    Publication date: April 3, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Po-Yun PARK, Hyun Seok KO, Min Joo LEE, Yong-Jun CHOI
  • Patent number: 8674927
    Abstract: Provided are a liquid crystal display (Lcd) and a method of driving the same. The LCD includes a timing controller which receives a first image signal corresponding to a first frame frequency and outputs a second image signal corresponding to a second frame frequency; a liquid crystal panel which receives the second image signal and displays an image using the second frame frequency; and a plurality of light-emitting blocks which provide light to the liquid crystal panel, wherein the light-emitting blocks are divided into a plurality of light-emitting groups, each group including at least one of the light-emitting blocks, and, in a first operation mode, a frame, which corresponds to the second frame frequency, includes an off section in which at least one of the light-emitting groups is turned off.
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: March 18, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yun-Jae Park, Hyun-Seok Ko, Mun-Soo Park, Seung-Hwan Moon, Kyung-Uk Choi
  • Publication number: 20140015820
    Abstract: A method to drive a display device includes: transmitting at least one data voltage to one or more of a plurality of data lines, scanning one or more of a plurality of gate lines to enable transmission of a gate signal in association with a first frame of a first hold section of a first still image section associated with display of a still image, and scanning one or more of the plurality of gate lines to enable transmission of the gate signal every frame of a first refresh section. The first still image section comprises the first refresh section.
    Type: Application
    Filed: November 5, 2012
    Publication date: January 16, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Yong-Jun Choi, Hyun Seok Ko, Po-Yun Park, Min Joo Lee, Jung-Hwan Cho
  • Patent number: 8605026
    Abstract: A liquid crystal display includes a first timing controller for receiving image signals in synchronization with a first clock signal and outputting representative image signals in synchronization with a second clock signal, the frequency of the second clock signal being lower than the frequency of the first clock signal; and circuitry for controlling luminance of light-emitting blocks of the liquid crystal display in response to the representative image signals.
    Type: Grant
    Filed: June 23, 2008
    Date of Patent: December 10, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun-seok Ko, Myeong-su Kim
  • Patent number: 8537176
    Abstract: A method and apparatus capable of reducing or preventing dithering noises in 3D dither for displaying stereoscopic or 3D images are provided. The method entails generating image data in which two consecutive frames have the same dithered image data.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: September 17, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun-Seok Ko, Seung-Hwan Moon, Jung-Hwan Cho, Myeong-Su Kim
  • Publication number: 20130100122
    Abstract: Provided is a method of driving a display panel, including: outputting first data voltages representing a left-eye image or a right-eye image to first signal lines among a plurality of signal lines of the display panel during a first period of a frame for rendering the left-eye or right-eye image of a three-dimensional (3D) image; outputting second data voltages representing the left-eye image or right-eye image for second signals among the plurality of signal lines of the display panel during a second period of the frame for rendering the left-eye or right-eye image of the 3D image; and stopping the data voltages from being outputted to the display panel during a third period of the frame.
    Type: Application
    Filed: May 17, 2012
    Publication date: April 25, 2013
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Gyeong-Ub MOON, Hyun-Seok KO, Jung-Hwan CHO
  • Patent number: 8243106
    Abstract: A display device includes; a signal control unit which receives a plurality of image signals and determines a plurality of representative image signals from the image signals, a plurality of lookup tables, each of which is configured to store a plurality of light data signals corresponding to the plurality of representative image signals, a plurality of light-emitting blocks configured to provide light according to the respective light data signals, and a display panel configured to display an image corresponding to the plurality of image signals, wherein the signal control unit determines an average luminance value of the plurality of image signals, selects one of the plurality of lookup tables according to the determined average luminance value, reads the light data signals from the selected lookup table and provides the light data signals to at least one of the plurality of light emitting blocks.
    Type: Grant
    Filed: March 17, 2009
    Date of Patent: August 14, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yun-Jae Park, Kyung-Uk Choi, Hyun-Seok Ko
  • Patent number: 8179407
    Abstract: A method of driving a display apparatus for an embodiment comprises a light source module divided into a plurality of light-emitting blocks to provide light to a display panel, a local dimming driving part driving the light-emitting blocks, and a timing controller controlling the driving timing of the display panel and the local dimming driving part. The timing controller transmits a luminance pulse having representative grayscale values of an image corresponding to the light-emitting blocks and a synchronization signal including information of a start position of the representative grayscale values to the local dimming driving part. The local dimming driving part drives the light-emitting blocks using the representative grayscale values obtained from the luminance pulse.
    Type: Grant
    Filed: May 12, 2009
    Date of Patent: May 15, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyun-Seok Ko, Sang-Gil Lee, Kyung Uk Choi
  • Publication number: 20120026137
    Abstract: A driving apparatus of a display device includes a signal controller including a plurality of driving circuit blocks, where the signal controller receives an image signal, input control signals from an outside and a data driver which receives data driving signals output from the signal controller, where a data transmission clock input to at least one of the plurality of driving circuit blocks of the signal controller is inactive during a blank period of at least one of the input control signals.
    Type: Application
    Filed: April 20, 2011
    Publication date: February 2, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae-Wan PARK, Myeong-Su KIM, Hyun-Seok KO, Jung-Hwan CHO
  • Publication number: 20110298789
    Abstract: A method and apparatus capable of reducing or preventing dithering noises in 3D dither for displaying stereoscopic or 3D images are provided. The method entails generating image data in which two consecutive frames have the same dithered image data.
    Type: Application
    Filed: September 28, 2010
    Publication date: December 8, 2011
    Inventors: Hyun-Seok KO, Seung-Hwan Moon, Jung-Hwan Cho, Myeong-Su Kim
  • Publication number: 20110285697
    Abstract: A three-dimensional (ā€œ3Dā€) image display includes a signal controller which receives two-dimensional (ā€œ2Dā€) image information and 3D image information and generates control signals based on the 2D image information and the 3D image information, a clock generator which receives the control signals from the signal controller and generates a first clock signal corresponding to the 3D image information and a second clock signal corresponding to the 2D image information, and a gate driver which generates a gate-on voltage based on at least one of the first clock signal and the second clock signal, where a frequency of the second clock signal is lower than a frequency of the first clock signal and an amplitude of the second clock signal is less than an amplitude of the first clock signal.
    Type: Application
    Filed: December 1, 2010
    Publication date: November 24, 2011
    Applicant: SAMSUNG ELECTRONICS CO. LTD.
    Inventors: Jae-Hoon LEE, Byoung-Jun LEE, Hyun-Seok KO
  • Publication number: 20110115889
    Abstract: A method of driving a light source including a light source part includes determining whether an image signal is a two-dimensional mode image signal or a three-dimensional mode image signal to generate a mode signal, adjusting a level of a current to be applied to the light source part in response to the mode signal to generate an adjusted current, and driving the light source part using the adjusted current.
    Type: Application
    Filed: June 28, 2010
    Publication date: May 19, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Bo-Ram KIM, Myoung-Chul KIM, Yun-Jae KIM, Byoung-Jun LEE, Nam-Hee GOO, Seung-Hwan MOON, Kyung-Uk CHOI, Hyun-Seok KO
  • Publication number: 20110069091
    Abstract: In a method of driving a light source including first through k-th light-emitting blocks (k being a natural number) which provide a display panel with light, the method includes providing identical driving signals to a plurality of light-emitting blocks of the first through k-th light-emitting blocks on which a high gradation image, which has a gradation greater than a predetermined gradation, is displayed.
    Type: Application
    Filed: January 29, 2010
    Publication date: March 24, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyoung-Phil Kim, Dae-Gwang Jang, Sang-Su Han, Jung-Hwan Cho, Po-Yun Park, Hyun-Seok Ko, Young-Su Han
  • Publication number: 20100220108
    Abstract: A display device includes; a signal control unit which receives a plurality of image signals and determines a plurality of representative image signals from the image signals, a plurality of lookup tables, each of which is configured to store a plurality of light data signals corresponding to the plurality of representative image signals, a plurality of light-emitting blocks configured to provide light according to the respective light data signals, and a display panel configured to display an image corresponding to the plurality of image signals, wherein the signal control unit determines an average luminance value of the plurality of image signals, selects one of the plurality of lookup tables according to the determined average luminance value, reads the light data signals from the selected lookup table and provides the light data signals to at least one of the plurality of light emitting blocks.
    Type: Application
    Filed: March 17, 2009
    Publication date: September 2, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yun-Jae PARK, Kyung-Uk CHOI, Hyun-Seok KO
  • Publication number: 20100151275
    Abstract: This invention relates to a L10-ordered FePt nanodot array which is manufactured using capillary force lithography, to a method of manufacturing the L10-ordered FePt nanodot array and to a high density magnetic recording medium using the L10-ordered FePt nanodot array. This method includes depositing a FePt thin film on a MgO substrate, forming a thin film made of a polymer material on the deposited FePt thin film using spin coating, bringing a mold into contact with the spin coated FePt thin film, annealing the mold and a polymer pattern which are in contact with each other, cooling and separating the mold and the polymer pattern which are annealed, controlling a size of the polymer pattern through reactive ion etching, ion milling a portion of the FePt thin film uncovered with the polymer pattern thus forming a FePt nanodot array and then removing a remaining polymer layer, and annealing the FePt nanodot array.
    Type: Application
    Filed: September 28, 2009
    Publication date: June 17, 2010
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Sung Chul SHIN, Hee-Tae JUNG, Hyun-Seok KO, Jin-Mi JUNG
  • Patent number: 7719634
    Abstract: A sensor is provided, which includes a substrate, an insulating layer formed on the substrate, a semiconductor formed on the insulating layer, an ohmic contact formed on the semiconductor, a sensor input electrode and a sensor output electrode formed on the ohmic contact, and a passivation layer formed on the sensor input electrode and the sensor output electrode. A sensor control electrode may also be formed between the substrate and the insulating layer. A thin film transistor array panel including the sensor and a liquid crystal display panel including the sensor are further provided.
    Type: Grant
    Filed: March 11, 2008
    Date of Patent: May 18, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ki-Chan Lee, Hyun-Seok Ko, Yun-Jae Park, Seung-Hwan Moon
  • Publication number: 20100060675
    Abstract: A method of driving a display apparatus for an embodiment comprises a light source module divided into a plurality of light-emitting blocks to provide light to a display panel, a local dimming driving part driving the light-emitting blocks, and a timing controller controlling the driving timing of the display panel and the local dimming driving part. The timing controller transmits a luminance pulse having representative grayscale values of an image corresponding to the light-emitting blocks and a synchronization signal including information of a start position of the representative grayscale values to the local dimming driving part. The local dimming driving part drives the light-emitting blocks using the representative grayscale values obtained from the luminance pulse.
    Type: Application
    Filed: May 12, 2009
    Publication date: March 11, 2010
    Inventors: Hyun-Seok KO, Sang-Gil Lee, Kyung-Uk Choi
  • Publication number: 20090109167
    Abstract: Provided are a liquid crystal display (LCD) and a method of driving the same. The LCD includes a timing controller which receives a first image signal corresponding to a first frame frequency and outputs a second image signal corresponding to a second frame frequency; a liquid crystal panel which receives the second image signal and displays an image using the second frame frequency; and a plurality of light-emitting blocks which provide light to the liquid crystal panel, wherein the light-emitting blocks are divided into a plurality of light-emitting groups, each group including at least one of the light-emitting blocks, and, in a first operation mode, a frame, which corresponds to the second frame frequency, includes an off section in which at least one of the light-emitting groups is turned off.
    Type: Application
    Filed: September 26, 2008
    Publication date: April 30, 2009
    Inventors: Yun-Jae Park, Hyun-Seok Ko, Mun-Soo Park, Seung-Hwan Moon, Kyung-Uk Choi
  • Publication number: 20090102776
    Abstract: A liquid crystal display includes a first timing controller for receiving image signals in synchronization with a first clock signal and outputting representative image signals in synchronization with a second clock signal, the frequency of the second clock signal being lower than the frequency of the first clock signal; and circuitry for controlling luminance of light-emitting blocks of the liquid crystal display in response to the representative image signals.
    Type: Application
    Filed: June 23, 2008
    Publication date: April 23, 2009
    Inventors: Hyun-seok Ko, Myeong-su Kim
  • Publication number: 20090085861
    Abstract: A backlight driver and a liquid crystal display (LCD) including the same, in which the backlight driver includes an interface unit enabled in response to a first carry signal, receiving serially provided optical data, and outputting a second carry signal; and a plurality of control units controlling one or more light-emitting devices in response to the serially provided optical data.
    Type: Application
    Filed: August 18, 2008
    Publication date: April 2, 2009
    Inventors: Ki-chan Lee, Dong-won Park, Hyun-seok Ko