Patents by Inventor Hoeung LEE

Hoeung LEE 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: 12524122
    Abstract: An input sensor of a display device includes a plurality of first electrodes, a plurality of second electrodes crossing the plurality of first electrodes, and a sensor driver selectively operating in a first proximity sensing mode and a second proximity sensing mode. The sensor driver outputs a plurality of transmission signals to the plurality of first electrodes and receives sensing signals from the plurality of second electrodes. The plurality of transmission signals includes a signal swinging between a first high level and a first low level during the first proximity sensing mode. The plurality of transmission signals is a signal swinging between a second high level and a second low level during a second proximity sensing mode. The second high level is a voltage level greater than the first high level.
    Type: Grant
    Filed: November 14, 2024
    Date of Patent: January 13, 2026
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yongjin Jee, Hyojin Lee, Kyounghun Been, Hoeung Lee
  • Patent number: 12436645
    Abstract: A touch sensor apparatus may include a multiplexer including a first transistor connected to a first touch sensor and a second transistor connected to a second touch sensor, a touch driver connected to the first touch sensor through the first transistor and connected to the second touch sensor through the second transistor, the first touch sensor disposed at a first distance from the touch driver and the second touch sensor disposed at a second distance shorter than the first distance from the touch driver. A first on-resistance of the first transistor may be smaller than a second on-resistance of the second transistor.
    Type: Grant
    Filed: June 11, 2024
    Date of Patent: October 7, 2025
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sanghun Park, Youngmin Park, Yongsub So, Bo-Hwan Lee, Hoeung Lee, Byeongkyu Jeon
  • Publication number: 20250306706
    Abstract: An interface device includes an electronic device and an input device communicating with the electronic device. The electronic device includes a display layer operating in a unit of display frame including a blank period and a data period, a sensor layer disposed on the display layer and operating in a first mode to sense a first input generated by the input device, and a sensor driver driving the sensor layer and transmitting an uplink signal to the input device. The input device transmits a plurality of first downlink signals including first information and a plurality of second downlink signals including second information different from the first information, and the sensor driver successively receives the plurality of first downlink signals during the blank period and successively receives the plurality of second downlink signals during the data period.
    Type: Application
    Filed: March 27, 2025
    Publication date: October 2, 2025
    Inventors: YOUNGMIN PARK, SANGHUN PARK, YONGSUB SO, BO-HWAN LEE, HOEUNG LEE, BYEONGKYU JEON
  • Publication number: 20250271956
    Abstract: A display device including: a display panel including a pixel; a touch panel including a touch sensor; and a display panel driver configured to perform a data writing operation to the pixel in an active period and perform a touch driving operation to the touch sensor in a blank period, wherein the display panel driver includes a touch driver configured to perform the tough driving operation and a driving controller configured to control an operation of the display panel and the touch driver, and wherein the touch driver outputs a touch driving performing signal, which indicates that the touch driving operation was performed, in the blank period to the driving controller.
    Type: Application
    Filed: December 8, 2024
    Publication date: August 28, 2025
    Inventors: BO-HWAN LEE, SANGHUN PARK, YOUNGMIN PARK, YONGSUB SO, HOEUNG LEE, BYEONGKYU JEON
  • Publication number: 20250165108
    Abstract: An input sensor of a display device includes a plurality of first electrodes, a plurality of second electrodes crossing the plurality of first electrodes, and a sensor driver selectively operating in a first proximity sensing mode and a second proximity sensing mode. The sensor driver outputs a plurality of transmission signals to the plurality of first electrodes and receives sensing signals from the plurality of second electrodes. The plurality of transmission signals includes a signal swinging between a first high level and a first low level during the first proximity sensing mode. The plurality of transmission signals is a signal swinging between a second high level and a second low level during a second proximity sensing mode. The second high level is a voltage level greater than the first high level.
    Type: Application
    Filed: November 14, 2024
    Publication date: May 22, 2025
    Inventors: YONGJIN JEE, HYOJIN LEE, KYOUNGHUN BEEN, HOEUNG LEE
  • Publication number: 20250117098
    Abstract: A touch sensor apparatus may include a multiplexer including a first transistor connected to a first touch sensor and a second transistor connected to a second touch sensor, a touch driver connected to the first touch sensor through the first transistor and connected to the second touch sensor through the second transistor, the first touch sensor disposed at a first distance from the touch driver and the second touch sensor disposed at a second distance shorter than the first distance from the touch driver. A first on-resistance of the first transistor may be smaller than a second on-resistance of the second transistor.
    Type: Application
    Filed: June 11, 2024
    Publication date: April 10, 2025
    Inventors: SANGHUN PARK, YOUNGMIN PARK, YONGSUB SO, BO-HWAN LEE, HOEUNG LEE, BYEONGKYU JEON
  • Patent number: 11755141
    Abstract: A display device includes: a display panel configured to display an image; an input sensor on the display panel and configured to operate in a first sensing mode or a second sensing mode different from the first sensing mode; and a sensor controller configured to drive the input sensor, wherein the sensor controller is configured to drive the input sensor under a first driving condition different from a driving condition of the first sensing mode in response to the second sensing mode being entered, and the sensor controller is configured to change the first driving condition to a second driving condition different from the first driving condition according to a specific event which occurs after entering the second sensing mode.
    Type: Grant
    Filed: January 26, 2022
    Date of Patent: September 12, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Soongyu Lee, Hoeung Lee, Yongjin Jee
  • Publication number: 20220319466
    Abstract: Disclosed is a display device including a controller executing a proximity sensing mode in which a proximity signal is sensed in response to a start signal, a display reducing luminance of a display panel to target luminance when the proximity sensing mode is executed, and a sensor sensing the proximity signal after reducing the luminance of a display panel to the target luminance.
    Type: Application
    Filed: March 14, 2022
    Publication date: October 6, 2022
    Inventors: YONGJIN JEE, SOONGYU LEE, HOEUNG LEE
  • Publication number: 20220244829
    Abstract: A display device includes: a display panel configured to display an image; an input sensor on the display panel and configured to operate in a first sensing mode or a second sensing mode different from the first sensing mode; and a sensor controller configured to drive the input sensor, wherein the sensor controller is configured to drive the input sensor under a first driving condition different from a driving condition of the first sensing mode in response to the second sensing mode being entered, and the sensor controller is configured to change the first driving condition to a second driving condition different from the first driving condition according to a specific event which occurs after entering the second sensing mode.
    Type: Application
    Filed: January 26, 2022
    Publication date: August 4, 2022
    Inventors: SOONGYU LEE, HOEUNG LEE, YONGJIN JEE
  • Publication number: 20160216828
    Abstract: An image display terminal and a method of controlling a touch for an image display terminal are disclosed. In one aspect, the method includes displaying a first widget in a first area on a touch screen and a second widget in a second area on the touch screen different from the first area. The method also includes extracting a first touch policy of the first widget and a second touch policy of the second widget. The method further includes individually controlling touch driving characteristics of the first and second areas based on the first and second touch policies.
    Type: Application
    Filed: September 10, 2015
    Publication date: July 28, 2016
    Inventor: Hoeung Lee
  • Publication number: 20150187338
    Abstract: A display device including a display unit configured to output a base image; a curvature sensing unit configured to sense one of a forward folded state and a reverse folded state of the display unit; and an interface control unit configured to generate an interface image. The interface image may include a forward folded interface image corresponding to the forward folded state of the display unit, or a reverse folded interface image corresponding to the reverse folded state of the display unit. The interface control unit is configured to overlay the interface image on a base image and output the overlaid image.
    Type: Application
    Filed: July 22, 2014
    Publication date: July 2, 2015
    Inventor: Hoeung LEE