Patents by Inventor Yoon Gu Kim

Yoon Gu Kim 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: 12122267
    Abstract: The present disclosure provides a device for reclining a seatback for a vehicle, which may allow a separate actuator to be driven by a switching signal of a lever switch when a user operates the lever switch with only a small force such that a cable connected to a latch for locking or unlocking a recliner may be pulled in an unlock direction of the recliner, thereby implementing the reclining operation for adjusting an angle of the seatback in a semiautomatic manner.
    Type: Grant
    Filed: July 20, 2022
    Date of Patent: October 22, 2024
    Assignees: Hyundai Motor Company, Kia Corporation, Daedong Movel System Co. Ltd., Hyundai Transys Inc.
    Inventors: Hoon Bok Lee, Yo Han Kim, Deok Soo Lim, Chan Ho Jung, Yoon Gu Kim, Dong Hyun Kim, Jung Bin Lee
  • Patent number: 11682336
    Abstract: A display apparatus includes a display panel, a driving controller and a data driver. The driving controller processes input image data according to a variable input frequency and generates a data signal having a varied frame length. The data driver converts the data signal into a data voltage and outputs the data voltage to the display panel. The driving controller determines a variable frequency mode and generates an asymmetric data signal including a positive data signal and a negative data signal which are asymmetric with respect to a common voltage for a same grayscale value in the variable frequency mode.
    Type: Grant
    Filed: March 11, 2021
    Date of Patent: June 20, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Tae Hyeong An, Hoi Sik Moon, Yoon Gu Kim, Jin Pil Kim, Jae Sung Bae, Nam Jae Lim, Ik Hyun Ahn, Seung Young Choi
  • Publication number: 20230045201
    Abstract: The present disclosure provides a device for reclining a seatback for a vehicle, which may allow a separate actuator to be driven by a switching signal of a lever switch when a user operates the lever switch with only a small force such that a cable connected to a latch for locking or unlocking a recliner may be pulled in an unlock direction of the recliner, thereby implementing the reclining operation for adjusting an angle of the seatback in a semiautomatic manner.
    Type: Application
    Filed: July 20, 2022
    Publication date: February 9, 2023
    Inventors: Hoon Bok Lee, Yo Han Kim, Deok Soo Lim, Chan Ho Jung, Yoon Gu Kim, Dong Hyun Kim, Jung Bin Lee
  • Publication number: 20210287595
    Abstract: A display apparatus includes a display panel, a driving controller and a data driver. The driving controller processes input image data according to a variable input frequency and generates a data signal having a varied frame length. The data driver converts the data signal into a data voltage and outputs the data voltage to the display panel. The driving controller determines a variable frequency mode and generates an asymmetric data signal including a positive data signal and a negative data signal which are asymmetric with respect to a common voltage for a same grayscale value in the variable frequency mode.
    Type: Application
    Filed: March 11, 2021
    Publication date: September 16, 2021
    Inventors: Tae Hyeong AN, Hoi Sik MOON, Yoon Gu KIM, Jin Pil KIM, Jae Sung BAE, Nam Jae LIM, Ik Hyun AHN, Seung Young CHOI
  • Patent number: 10957271
    Abstract: A display device includes a first data driver which is disposed at an upper side of a display panel and supplies a data signal to data lines of a plurality of data lines, a second data driver which is disposed at a lower side of the display panel and supplies a data signal to remaining data lines of the plurality of data lines, and a signal controller which outputs a corrected image signal, based on a first lookup table which stores a correction value of a first input image signal for the first data driver and a second lookup table which stores a correction value of a second input image signal for the second data driver.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: March 23, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Suk Jin Park, Yoon Gu Kim, Jae Hyoung Park, Akihiro Takegama
  • Patent number: 10777144
    Abstract: In a method of operating a display panel, a plurality of data lines are divided into a first data line group through an N-th data line group, where N is a natural number equal to or greater than two. Each of the first through N-th data line groups includes at least two data lines. The first through N-th data line groups are sequentially driven by applying first data voltages through N-th data voltages to the first through N-th data line groups, respectively at different times. A first number of data lines in the first data line group is variable.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: September 15, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jung-Deok Seo, Yoon-gu Kim, Bong-Im Park, Byung-Kook Sim, Hyun-sik Hwang
  • Publication number: 20200271993
    Abstract: A display device having a backlight which includes a first quantity of light source blocks that are individually driven at separate duty ratios. The display device includes pixels having a second quantity that is greater than the first quantity. The pixels are configured to determine a light transmission factor for light emitted from the light source blocks. A grayscale compensation unit is configured to calculate color shift amounts of the pixels based on the duty ratios of the light source blocks and compensate input grayscale values for the pixels based on the color shift amounts to correct color shift.
    Type: Application
    Filed: November 20, 2019
    Publication date: August 27, 2020
    Inventors: Nam Jae LIM, Hoi Sik MOON, Yoon Gu KIM, Jae Sung BAE, Seung Young CHOI, Tae Hyeong AN
  • Patent number: 10733951
    Abstract: A display device and a driving method thereof are disclosed. In one aspect, the display device includes a display panel including a plurality of pixel rows, a data driver configured to transfer data voltages to the display panel, a gate driver configured to transfer gate signals to the display panel, and a signal controller configured to control the data driver and the gate driver. The pixel rows are divided into i (i is a natural number of 2 or more) pixel row groups including a plurality of pixel rows, respectively. The display panel displays one still image for one frame set including the i sequential frames, and each of the i pixel row groups is charged by receiving the data voltage for each frame of the frame set, and the frames in which the i pixel row groups are charged are different from each other.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: August 4, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ik Hyun Ahn, Yoon Gu Kim, Bong Im Park, Seon Ki Kim
  • Publication number: 20200005722
    Abstract: A display device and a driving method thereof are disclosed. In one aspect, the display device includes a display panel including a plurality of pixel rows, a data driver configured to transfer data voltages to the display panel, a gate driver configured to transfer gate signals to the display panel, and a signal controller configured to control the data driver and the gate driver. The pixel rows are divided into i (i is a natural number of 2 or more) pixel row groups including a plurality of pixel rows, respectively. The display panel displays one still image for one frame set including the i sequential frames, and each of the i pixel row groups is charged by receiving the data voltage for each frame of the frame set, and the frames in which the i pixel row groups are charged are different from each other.
    Type: Application
    Filed: September 9, 2019
    Publication date: January 2, 2020
    Inventors: Ik Hyun Ahn, Yoon Gu Kim, Bong Im Park, Seon Ki Kim
  • Publication number: 20190392776
    Abstract: A display device includes a first data driver which is disposed at an upper side of a display panel and supplies a data signal to data lines of a plurality of data lines, a second data driver which is disposed at a lower side of the display panel and supplies a data signal to remaining data lines of the plurality of data lines, and a signal controller which outputs a corrected image signal, based on a first lookup table which stores a correction value of a first input image signal for the first data driver and a second lookup table which stores a correction value of a second input image signal for the second data driver.
    Type: Application
    Filed: April 2, 2019
    Publication date: December 26, 2019
    Inventors: Suk Jin PARK, Yoon Gu KIM, Jae Hyoung PARK, Akihiro TAKEGAMA
  • Patent number: 10410598
    Abstract: A display device and a driving method thereof are disclosed. In one aspect, the display device includes a display panel including a plurality of pixel rows, a data driver configured to transfer data voltages to the display panel, a gate driver configured to transfer gate signals to the display panel, and a signal controller configured to control the data driver and the gate driver. The pixel rows are divided into i (i is a natural number of 2 or more) pixel row groups including a plurality of pixel rows, respectively. The display panel displays one still image for one frame set including the i sequential frames, and each of the i pixel row groups is charged by receiving the data voltage for each frame of the frame set, and the frames in which the i pixel row groups are charged are different from each other.
    Type: Grant
    Filed: November 12, 2018
    Date of Patent: September 10, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ik Hyun Ahn, Yoon Gu Kim, Bong Im Park, Seon Ki Kim
  • Publication number: 20190080662
    Abstract: A display device and a driving method thereof are disclosed. In one aspect, the display device includes a display panel including a plurality of pixel rows, a data driver configured to transfer data voltages to the display panel, a gate driver configured to transfer gate signals to the display panel, and a signal controller configured to control the data driver and the gate driver. The pixel rows are divided into i (i is a natural number of 2 or more) pixel row groups including a plurality of pixel rows, respectively. The display panel displays one still image for one frame set including the i sequential frames, and each of the i pixel row groups is charged by receiving the data voltage for each frame of the frame set, and the frames in which the i pixel row groups are charged are different from each other.
    Type: Application
    Filed: November 12, 2018
    Publication date: March 14, 2019
    Inventors: Ik Hyun Ahn, Yoon Gu Kim, Bong Im Park, Seon Ki Kim
  • Patent number: 10127879
    Abstract: A display device and a driving method thereof are disclosed. In one aspect, the display device includes a display panel including a plurality of pixel rows, a data driver configured to transfer data voltages to the display panel, a gate driver configured to transfer gate signals to the display panel, and a signal controller configured to control the data driver and the gate driver. The pixel rows are divided into i (i is a natural number of 2 or more) pixel row groups including a plurality of pixel rows, respectively. The display panel displays one still image for one frame set including the i sequential frames, and each of the i pixel row groups is charged by receiving the data voltage for each frame of the frame set, and the frames in which the i pixel row groups are charged are different from each other.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: November 13, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ik Hyun Ahn, Yoon Gu Kim, Bong Im Park, Seon Ki Kim
  • Patent number: 10121425
    Abstract: An adaptive black clipping circuit in a display device includes a data corrector, a register, a pattern detector and a clipping selector. The data corrects input image data to generate corrected image data such that the corrected image data is equal to or greater than a black clipping value where the black clipping value corresponds to the input image data having a grayscale value of zero and the black clipping value is greater than zero. The register stores and provides configuration data. The pattern detector generates a pattern detection signal based on the input image data corresponding to a plurality of rows. The clipping selector selects one of the corrected image data and the configuration data in response to the pattern detection signal to provide output image data.
    Type: Grant
    Filed: August 13, 2015
    Date of Patent: November 6, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ik-Hyun Ahn, Yoon-Gu Kim, Woo-Joo Lee, Bong-Im Park
  • Patent number: 10032423
    Abstract: The disclosed display device of improved display quality and reduced power consumption includes a display unit including pixels coupled to gate lines and data lines, a gate driving unit for outputting a gate signal to the gate lines, a data driving unit for outputting a data signal to the data lines, a voltage supply unit for supplying to the gate driving unit a gate-on voltage to generate the gate signal a gate-off voltage, and a kickback compensation voltage having a voltage level varied at a section of time of the gate-on voltage, and a display mode control unit for controlling the voltage supply unit to supply the kickback compensation voltage during a first display mode for displaying an image on an entire area of the display unit, and to block supply of the kickback compensation voltage during a second display mode for displaying an image on only a partial area.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: July 24, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ik Hyun Ahn, Yoon Gu Kim, Bong Im Park, Hyun Sik Hwang
  • Patent number: 9959798
    Abstract: A display panel driving apparatus includes a data processing circuit, a data driver, and a gate driver. The data processing circuit increases a first gamma value of input image data of which the gamma value is 0, according to a second gamma value of the input image data of which the second gamma value is not 0. The data driving part outputs a data signal based on the output image data to a data line. The gate driving part outputs a gate signal to a gate line.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: May 1, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yoon-Gu Kim, Bong-Im Park, Ik-Hyun Ahn, Hyun-sik Hwang, Woo-Joo Lee, Jin-Young Lee
  • Patent number: 9956130
    Abstract: There is provided an upper limb rehabilitation robot including: a base frame that has a side to which a connecting support is rotatably laterally connected; a connecting shaft unit that is rotatably disposed at a side of the connecting support; a link unit that has a side coupled to the connecting shaft unit and the other side with an upper limb connector mounted to enable a person who needs rehabilitation to connect an upper limb; an active actuator that rotates a connecting shaft unit; and a manual actuator that generates resistant torque against rotation to the connecting shaft unit.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: May 1, 2018
    Assignee: Daegu Gyeongbuk Institute of Science and Technology
    Inventors: Jinung An, Yoon Gu Kim, Gwang Hee Jang, Jung Hyun Choi
  • Patent number: 9886883
    Abstract: A display apparatus includes a timing controller and a display panel. The timing controller generates first and second image data based on input image data and generates output image data based on the first and second image data. The first image data corresponds to a boundary region in a first image. The second image data corresponds to a non-boundary region in the first image. The display panel includes a plurality of pixels and displays the first image based on the output image data. The plurality of pixels include boundary pixels corresponding to the boundary region and non-boundary pixels corresponding to the non-boundary region. The boundary pixels operate based on a reference gamma curve. The non-boundary pixels operate based on first and second gamma curves different from the reference gamma curve.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: February 6, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ik-Hyun Ahn, Yoon-Gu Kim, Bong-Im Park, Hyun-Sik Hwang
  • Patent number: 9837037
    Abstract: A method of driving a display panel includes comparing a previous line data and a present line data to generate a charge sharing enable (EQ) signal indicating whether or not a charge sharing is to be applied to a pixel; selectively applying the charge sharing to the present line data utilizing a charge sharing voltage according to the EQ signal to generate a data voltage; and outputting the data voltage to the pixel.
    Type: Grant
    Filed: May 1, 2015
    Date of Patent: December 5, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun Sik Hwang, Bong-Im Park, Ik Hyun Ahn, Won-Sik Oh, Yoon-Gu Kim, Ho-Seok Son, Young-Woo Choi
  • Patent number: 9812088
    Abstract: A display device includes a signal controller and a data driver. The signal controller processes an input image signal to generate an output image signal. The signal controller processes the input image signal using a correction unit. The correction unit corrects the input image signal to a first gray scale value greater than 0 gray scale value when the gray scale value of the input image signal is 0. The output image signal is based on the corrected input image signal. The data driver converts the output image signal into a data voltage to be applied to a display panel.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: November 7, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ik Hyun Ahn, Yoon Gu Kim, Bong Im Park, Seon Ki Kim, Ah Young Son