Patents by Inventor Taek-su KWON

Taek-su 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).

  • Publication number: 20240005877
    Abstract: Among the implementations described herein is a gamma voltage generator which includes a first resistor string that is connected between a 0-th terminal and a first terminal and outputs first gamma voltages, a 0-th gamma amplifier that outputs a 0-th tap voltage to the 0-th terminal by using a 0-th reference voltage, a first variable tap gamma amplifier that outputs a first tap voltage to the first terminal by using a first reference voltage, and a gamma control logic circuit that selectively activates a first tap change signal based on a first grayscale ratio of first line data. The first variable tap gamma amplifier outputs a second tap voltage to a first central terminal of the first resistor string by using a second reference voltage, in response to the first tap change signal thus activated.
    Type: Application
    Filed: May 1, 2023
    Publication date: January 4, 2024
    Inventor: Taek Su Kwon
  • Publication number: 20220415230
    Abstract: Disclosed is a source amplifier which includes a first circuit that outputs a first current to an output terminal of the source amplifier by amplifying an input voltage, and a second circuit that is connected with the first circuit and outputs a second current to the output terminal based on the input voltage. The second circuit includes a third circuit that adjusts a level of the second current in response to an enable signal.
    Type: Application
    Filed: February 24, 2022
    Publication date: December 29, 2022
    Inventors: Taek Su KWON, Woojoo KIM, Dongwook SUH
  • Patent number: 11217199
    Abstract: Disclosed are a display driving circuit and a display apparatus including the same. A display driving circuit includes a first amplifier configured to drive a first data line of a display panel based on first pixel data and a second amplifier configured to drive a second data line of the display panel based on second pixel data, wherein, when a first data difference between the first pixel data and the second pixel data is greater than or equal to a data value indicating one grayscale and is less than or equal to a first threshold value, the second amplifier is turned off, and the first amplifier is configured to drive the first data line and the second data line based on the first pixel data and the second pixel data.
    Type: Grant
    Filed: July 16, 2020
    Date of Patent: January 4, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ki-ho Kong, Taek-su Kwon, Jong-hyun Kim, Jee-hwal Kim, Jun-ho Park, Hong-keun Yune
  • Publication number: 20200349901
    Abstract: Disclosed are a display driving circuit and a display apparatus including the same. A display driving circuit includes a first amplifier configured to drive a first data line of a display panel based on first pixel data and a second amplifier configured to drive a second data line of the display panel based on second pixel data, wherein, when a first data difference between the first pixel data and the second pixel data is greater than or equal to a data value indicating one grayscale and is less than or equal to a first threshold value, the second amplifier is turned off, and the first amplifier is configured to drive the first data line and the second data line based on the first pixel data and the second pixel data.
    Type: Application
    Filed: July 16, 2020
    Publication date: November 5, 2020
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Ki-ho KONG, Taek-su KWON, Jong-hyun KIM, Jee-hwal KIM, Jun-ho PARK, Hong-keun YUNE
  • Patent number: 10755662
    Abstract: Disclosed are a display driving circuit and a display apparatus including the same. A display driving circuit includes a first amplifier configured to drive a first data line of a display panel based on first pixel data and a second amplifier configured to drive a second data line of the display panel based on second pixel data, wherein, when a first data difference between the first pixel data and the second pixel data is greater than or equal to a data value indicating one grayscale and is less than or equal to a first threshold value, the second amplifier is turned off, and the first amplifier is configured to drive the first data line and the second data line based on the first pixel data and the second pixel data.
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: August 25, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ki-ho Kong, Taek-su Kwon, Jong-hyun Kim, Jee-hwal Kim, Jun-ho Park, Hong-keun Yune
  • Publication number: 20180315390
    Abstract: Disclosed are a display driving circuit and a display apparatus including the same. A display driving circuit includes a first amplifier configured to drive a first data line of a display panel based on first pixel data and a second amplifier configured to drive a second data line of the display panel based on second pixel data, wherein, when a first data difference between the first pixel data and the second pixel data is greater than or equal to a data value indicating one grayscale and is less than or equal to a first threshold value, the second amplifier is turned off, and the first amplifier is configured to drive the first data line and the second data line based on the first pixel data and the second pixel data.
    Type: Application
    Filed: April 12, 2018
    Publication date: November 1, 2018
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Ki-ho KONG, Taek-su KWON, Jong-hyun KIM, Jee-hwal KIM, Jun-ho PARK, Hong-Keun YUNE