Patents by Inventor Yong-Sub SO

Yong-Sub SO 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: 11842012
    Abstract: A display device includes: a display panel; a sensor unit on the display panel; a touch driver including a signal processor configured to output a final touch point coordinate using a touch sensing signal received from the sensor unit; and an application processor configured to provide filter size information to the touch driver, wherein the signal processor includes a jitter remover configured to receive a current touch point coordinate from a coordinate calculator and to output the final touch point coordinate from which a jitter component is removed by filtering with a jitter filter, and wherein the jitter remover includes a filter size determiner configured to vary a range of the jitter filter in response to the filter size information.
    Type: Grant
    Filed: August 12, 2022
    Date of Patent: December 12, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yong Sub So, Ji Hoon Kim, Sang Hun Park
  • Patent number: 11755140
    Abstract: A touch sensor includes a sensor cell coupled to a sensor line, a sensor transmitter including a first switch coupled to the sensor line and a power supply which supplies a charging signal to the sensor line during a first period during which the first switch is turned on, and a sensor receiver including a second switch coupled to the sensor line and a sensor channel which receives a sensing signal from the sensor line during a second period during which the second switch is turned on. The sensor receiver further includes a coupling capacitor including a first electrode coupled to the second switch and a second electrode coupled to the sensor channel.
    Type: Grant
    Filed: November 10, 2021
    Date of Patent: September 12, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sang Hun Park, Yong Sub So
  • Publication number: 20230147349
    Abstract: A display device is provided. The display device includes a display unit, a touch unit, a display driver configured to drive the display unit and including a synchronization signal generator, and a touch driver configured to drive the touch unit and including a synchronization signal receiver and a touch signal adjuster, wherein the synchronization signal generator is configured to generate a first synchronization signal supporting a frequency of a display signal applied to the display unit based on input frame frequency information and a second synchronization signal supporting the frequency of the display signal and including the frame frequency information, based on the frame frequency information and the first synchronization signal, and wherein the synchronization signal receiver is configured to receive the horizontal synchronization signal.
    Type: Application
    Filed: July 14, 2022
    Publication date: May 11, 2023
    Inventors: Sang Hun Park, Ji Hoon Kim, Yong Sub So
  • Patent number: 11635846
    Abstract: A display device includes a display substrate having a non-display area at least partially surrounding a display area, and pixels in the display area, and a sensor substrate covering the pixels and a portion of the display substrate. The display device also includes first and second pads in the non-display area, a first sensor on the sensor substrate, a first sensor line connecting the first pad and the first sensor, and a second sensor line connecting the second pad and the first sensor. In addition, the display device includes a sensor transmitter to supply a sensing signal to the first pad during a first period, and a sensor receiver to receive a sampling signal from the second pad during a second period after the first period.
    Type: Grant
    Filed: August 25, 2021
    Date of Patent: April 25, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sang Hun Park, Yong Sub So
  • Publication number: 20230094855
    Abstract: A display device includes: a display panel; a sensor unit on the display panel; a touch driver including a signal processor configured to output a final touch point coordinate using a touch sensing signal received from the sensor unit; and an application processor configured to provide filter size information to the touch driver, wherein the signal processor includes a jitter remover configured to receive a current touch point coordinate from a coordinate calculator and to output the final touch point coordinate from which a jitter component is removed by filtering with a jitter filter, and wherein the jitter remover includes a filter size determiner configured to vary a range of the jitter filter in response to the filter size information.
    Type: Application
    Filed: August 12, 2022
    Publication date: March 30, 2023
    Inventors: Yong Sub SO, Ji Hoon KIM, Sang Hun PARK
  • Publication number: 20220214792
    Abstract: A touch sensor includes a sensor cell coupled to a sensor line, a sensor transmitter including a first switch coupled to the sensor line and a power supply which supplies a charging signal to the sensor line during a first period during which the first switch is turned on, and a sensor receiver including a second switch coupled to the sensor line and a sensor channel which receives a sensing signal from the sensor line during a second period during which the second switch is turned on. The sensor receiver further includes a coupling capacitor including a first electrode coupled to the second switch and a second electrode coupled to the sensor channel.
    Type: Application
    Filed: November 10, 2021
    Publication date: July 7, 2022
    Inventors: SANG HUN PARK, Yong Sub SO
  • Publication number: 20220206656
    Abstract: A display device includes a display substrate having a non-display area at least partially surrounding a display area, and pixels in the display area, and a sensor substrate covering the pixels and a portion of the display substrate. The display device also includes first and second pads in the non-display area, a first sensor on the sensor substrate, a first sensor line connecting the first pad and the first sensor, and a second sensor line connecting the second pad and the first sensor. In addition, the display device includes a sensor transmitter to supply a sensing signal to the first pad during a first period, and a sensor receiver to receive a sampling signal from the second pad during a second period after the first period.
    Type: Application
    Filed: August 25, 2021
    Publication date: June 30, 2022
    Inventors: Sang Hun PARK, Yong Sub SO
  • Patent number: 10997392
    Abstract: An electronic device, including a touch recognition unit; a display unit receiving a signal from the touch recognition unit; a fingerprint recognition unit receiving a signal from the display unit. A processor is configured to transmit and receive a signal to/from the touch recognition unit, the display unit, and the fingerprint recognition unit. The processor may remain in an inactive state while the touch recognition unit, display unit, and fingerprint recognition unit are activated. The processor is activated when a preset user's fingerprint input is provided. A method operates the electronic device.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: May 4, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yong Sub So, Sang Jin Pak, Moon Sang Hwang
  • Publication number: 20190197293
    Abstract: An electronic device, including a touch recognition unit; a display unit receiving a signal from the touch recognition unit; a fingerprint recognition unit receiving a signal from the display unit. A processor is configured to transmit and receive a signal to/from the touch recognition unit, the display unit, and the fingerprint recognition unit. The processor may remain in an inactive state while the touch recognition unit, display unit, and fingerprint recognition unit are activated. The processor is activated when a preset user's fingerprint input is provided. A method operates the electronic device.
    Type: Application
    Filed: December 14, 2018
    Publication date: June 27, 2019
    Inventors: Yong Sub SO, Sang Jin PAK, Moon Sang HWANG
  • Patent number: 10157575
    Abstract: A display device includes a display panel including data lines, scan lines, and pixels, a scan driver configured to provide a scan signal to the pixels through the scan lines, a data driver configured to provide data signal to the pixels through the data lines, a voltage generator configured to provide an on-bias voltage to the pixels through the data lines, a timing controller configured to generate a first control signal that controls the data driver and a second control signal that controls the voltage generator, and a protection circuit configured to generate a first protection signal and a second protection signal and prevent an overlapping output of the data signal and the on-bias voltage based on the first control signal and the second control signal.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: December 18, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yong-Sub So, Byung-Hyuk Shin, Myeong-Bin Lim
  • Publication number: 20170270864
    Abstract: A display device includes a display panel including data lines, scan lines, and pixels, a scan driver configured to provide a scan signal to the pixels through the scan lines, a data driver configured to provide data signal to the pixels through the data lines, a voltage generator configured to provide an on-bias voltage to the pixels through the data lines, a timing controller configured to generate a first control signal that controls the data driver and a second control signal that controls the voltage generator, and a protection circuit configured to generate a first protection signal and a second protection signal and prevent an overlapping output of the data signal and the on-bias voltage based on the first control signal and the second control signal.
    Type: Application
    Filed: January 24, 2017
    Publication date: September 21, 2017
    Inventors: Yong-Sub SO, Byung-Hyuk SHIN, Myeong-Bin LIM