Patents by Inventor Jang-Hui Kim

Jang-Hui 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).

  • Publication number: 20220057898
    Abstract: An input sensing device includes an input sensing panel including driving electrodes and sensing electrodes, a driving signal generator that provides driving signals to the driving electrodes, respectively, and a sensing unit that receives sensing signals according to the driving signals from the sensing electrodes, and determines whether a touch is performed based on the sensing signals. Each of the driving signals includes a sinusoidal wave, and frequencies of at least some of the driving signals are different from each other.
    Type: Application
    Filed: March 30, 2021
    Publication date: February 24, 2022
    Inventors: Choon Hyop LEE, Jang Hui KIM, Jae Won KIM, In Nam LEE
  • Patent number: 11231819
    Abstract: A touch sensor includes a base layer; a first electrode member that includes a plurality of first electrodes arranged on the base layer and electrically connected to each other along a first direction, each of the first electrodes including a first opening; a second electrode member that includes a plurality of second electrodes arranged on the base layer and electrically connected to each other along a second direction that intersects the first direction; a conductive member that includes a plurality of conductive patterns electrically connected to each other along the first direction; and a proximity detector that is electrically connected to the conductive member and configured to detect proximity of an object by receiving a proximity sensing signal from the conductive member. Each of the conductive patterns is located in the first opening of each of the first electrodes and spaced apart from each of the first electrodes, respectively.
    Type: Grant
    Filed: April 5, 2021
    Date of Patent: January 25, 2022
    Inventors: Do Ik Kim, Jang hui Kim, Sang Chul Lee, Ga Young Kim
  • Patent number: 11231825
    Abstract: The touch sensor includes first touch electrode members disposed on a base layer and located in a sensing area, each of the first touch electrode members including a plurality of first touch electrodes arranged along a first direction, each of the first touch electrodes including a first opening; second touch electrode members disposed on the base layer and located in a sensing area, each of the second touch electrode members including a plurality of second touch electrodes arranged along a second direction, each of the second touch electrodes including a second opening; and a first pressure sensor disposed on the base layer and including a first strain gauge. A portion of the first strain gauge is located in the second sensing area, and the first strain gauge includes a portion located in the second sensing area and disposed in the same layer as the plurality of first touch electrodes and the plurality of second touch electrodes.
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: January 25, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jang Hui Kim, Ga Young Kim, Do Ik Kim, Sang Chul Lee, A Ra Jo
  • Publication number: 20210318730
    Abstract: A display device includes: a substrate; a first sensor electrode and a second sensor electrode disposed on the substrate; an antenna electrically separated from the first sensor electrode to transmit and receive radio frequency signals; and an antenna feed line electrically connected to the antenna pattern.
    Type: Application
    Filed: January 21, 2021
    Publication date: October 14, 2021
    Inventors: Hyun Jae LEE, Jang Hui KIM, Kang Won LEE, Sang Chul LEE
  • Publication number: 20210313401
    Abstract: A display device including a display panel including pixels that emit light on a frame basis. An input sensing unit includes driving electrodes and sensing electrodes. A driving signal generator is configured to provide driving signals to the driving electrodes. Analog front-ends are configured to receive sensing signals depending on the driving signals from the sensing electrodes. A signal processor is configured to detect touch input, based on differential output values of the analog front-ends. The driving signal generator provides the driving signals to the driving electrodes while avoiding a period in which a pulse of a vertical synchronization signal defining start of the frame is generated.
    Type: Application
    Filed: March 11, 2021
    Publication date: October 7, 2021
    Inventors: In Nam Lee, Jang Hui Kim, Choon Hyop Lee
  • Publication number: 20210263630
    Abstract: A display device, includes: a display panel having short sides and long sides; and a touch sensor on the display panel and including a sensing area and a non-sensing area around the sensing area, wherein the touch sensor includes: a first touch electrode unit including a plurality of first touch electrodes in the sensing area, arranged in a direction in which the short sides of the display panel extend, and each including a first opening; a second touch electrode unit including a plurality of second touch electrodes in the sensing area, arranged in a direction in which the long sides of the display panel extend, and each including a second opening; and a pressure sensor including a strain gauge, at least a part of the strain gauge being located in the sensing area.
    Type: Application
    Filed: February 11, 2021
    Publication date: August 26, 2021
    Inventors: Jang Hui KIM, Ga Young KIM, Jung Mok PARK, A Ra JO
  • Publication number: 20210223888
    Abstract: A touch sensor includes a base layer; a first electrode member that includes a plurality of first electrodes arranged on the base layer and electrically connected to each other along a first direction, each of the first electrodes including a first opening; a second electrode member that includes a plurality of second electrodes arranged on the base layer and electrically connected to each other along a second direction that intersects the first direction; a conductive member that includes a plurality of conductive patterns electrically connected to each other along the first direction; and a proximity detector that is electrically connected to the conductive member and configured to detect proximity of an object by receiving a proximity sensing signal from the conductive member. Each of the conductive patterns is located in the first opening of each of the first electrodes and spaced apart from each of the first electrodes, respectively.
    Type: Application
    Filed: April 5, 2021
    Publication date: July 22, 2021
    Inventors: Do Ik KIM, Jang hui KIM, Sang Chul LEE, Ga Young KIM
  • Publication number: 20210149517
    Abstract: A display device includes: a base substrate; a light emitting element located on the base substrate; a thin-film encapsulation layer located on the light emitting element; touch electrodes located on the thin-film encapsulation layer, each of the touch electrode including an opening; and a strain gauge including: resistance lines located in the openings, respectively, the resistance lines located in the same layer as the touch electrodes and having variable resistance values changed in response to a touch input; a first connection line connecting two resistance lines neighboring each other along a first direction; and a second connection line connecting two resistance lines neighboring each other along a second direction, the second direction intersecting the first direction, wherein the first connection line and the second connection line are located between the thin-film encapsulation layer and the resistance lines.
    Type: Application
    Filed: January 28, 2021
    Publication date: May 20, 2021
    Inventors: Ga Young KIM, Jang Hui KIM, A Ra JO
  • Patent number: 10969911
    Abstract: A touch sensor includes a base layer; a first electrode member that includes a plurality of first electrodes arranged on the base layer and electrically connected to each other along a first direction, each of the first electrodes including a first opening; a second electrode member that includes a plurality of second electrodes arranged on the base layer and electrically connected to each other along a second direction that intersects the first direction; a conductive member that includes a plurality of conductive patterns electrically connected to each other along the first direction; and a proximity detector that is electrically connected to the conductive member and configured to detect proximity of an object by receiving a proximity sensing signal from the conductive member. Each of the conductive patterns is located in the first opening of each of the first electrodes and spaced apart from each of the first electrodes, respectively.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: April 6, 2021
    Inventors: Do ik Kim, Jang hui Kim, Sang Chul Lee, Ga Young Kim
  • Publication number: 20210064187
    Abstract: A sensing circuit includes: a plurality of sensor electrodes; a first capacitance between the sensor electrodes; a plurality of proximity sensing electrodes electrically isolated from the sensor electrodes; and a second capacitance between at least one of the sensor electrodes and the proximity sensing electrodes. A density of at least one of the proximity sensing electrodes is less than a density of at least one of the sensor electrodes.
    Type: Application
    Filed: April 14, 2020
    Publication date: March 4, 2021
    Inventors: Choon Hyop LEE, Kang Won LEE, Ga Young KIM, Jang Hui KIM, A Ra JO
  • Patent number: 10936134
    Abstract: A touch sensor includes a base layer, a first electrode unit, second electrode units, and a first strain gauge. The first electrode unit includes first touch electrodes arranged on the base layer along a first direction and electrically connected to each other along the first direction. The second electrode units are spaced apart from one another along the first direction. Each of the second electrode units includes second touch electrodes arranged on the base layer along a second direction intersecting the first direction and electrically connected to each other along the second direction. Each of the second touch electrodes includes a first opening. The first strain gauge includes first resistance lines electrically connected to each other along the first direction. Each of the first resistance lines is disposed in a respective first opening disposed in a first row among the first openings.
    Type: Grant
    Filed: May 1, 2019
    Date of Patent: March 2, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jang Hui Kim, Ga Young Kim, A Ra Jo
  • Patent number: 10936137
    Abstract: A touch sensing device includes a first base layer, a plurality of first sensing electrodes disposed on the first base layer and spaced apart in a first direction, a plurality of second sensing electrodes disposed on a same layer as the first sensing electrodes and arranged in different rows from the first sensing electrodes, a plurality of third sensing electrodes on the second sensing electrodes that are spaced apart along a second direction different from the first direction and that overlap the second sensing electrodes, and a plurality of fourth sensing electrodes on the first sensing electrodes that are spaced apart along the second direction and that overlap the first sensing electrodes. At least two of the second sensing electrodes are directly connected to each other.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: March 2, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: In Nam Lee, Jang Hui Kim, Sang Chul Lee, A Ra Jo
  • Publication number: 20210034201
    Abstract: An input sensing device includes a plurality of first sensing electrodes having a plurality of first sensor units extending in a first direction. A plurality of second sensing electrodes has a plurality of second sensor units extending in a second direction different from the first direction. A first strain gauge includes a first force electrode located proximate to a first electrode of the plurality of first sensing electrodes. A second force electrode is located proximate to a second electrode of the plurality of first sensing electrodes. A first connecting electrode connects to both of the first force electrode and the second force electrode.
    Type: Application
    Filed: October 19, 2020
    Publication date: February 4, 2021
    Inventors: Jang Hui Kim, Hyung Chul Kim, A Ra Jo
  • Patent number: 10908723
    Abstract: A display device includes: a base substrate; a light emitting element located on the base substrate; a thin-film encapsulation layer located on the light emitting element; touch electrodes located on the thin-film encapsulation layer, each of the touch electrode including an opening; and a strain gauge including: resistance lines located in the openings, respectively, the resistance lines located in the same layer as the touch electrodes and having variable resistance values changed in response to a touch input; a first connection line connecting two resistance lines neighboring each other along a first direction; and a second connection line connecting two resistance lines neighboring each other along a second direction, the second direction intersecting the first direction, wherein the first connection line and the second connection line are located between the thin-film encapsulation layer and the resistance lines.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: February 2, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ga Young Kim, Jang Hui Kim, A Ra Jo
  • Publication number: 20210005677
    Abstract: A touch detecting unit comprises first sensor electrodes arranged in a first direction and electrically connected with one another second sensor electrodes arranged in a second direction crossing the first direction, and electrically connected with one another, the second sensor electrodes electrically separated from the first sensor electrodes, and third sensor electrodes electrically separated from the first sensor electrodes and the second sensor electrodes. Amounts of change in first capacitances between the first sensor electrodes and the second sensor electrodes are detected in a first mode. Amounts of change in the first capacitances and amounts of change in a second capacitance between the first sensor electrodes and the third sensor electrodes are detected in a second mode.
    Type: Application
    Filed: June 8, 2020
    Publication date: January 7, 2021
    Inventors: Kang Won LEE, Do Ik KIM, Choon Hyop LEE, Jang Hui KIM, Sang Chul LEE
  • Patent number: 10877601
    Abstract: A display device including: a display panel for generating an image; and an input sensing layer disposed on the display panel, the input sensing layer sensing a user input. The display panel includes: pixels each including an organic light emitting diode that emits light, corresponding to a driving current flowing from a first power source to a second power source; and a noise detector for generating a noise voltage by detecting noise from the second power source. The input sensing layer includes: first sensing electrodes and second sensing electrodes intersecting each other; and a readout circuit for removing the noise included in a sensing voltage received from the second sensing electrodes based on the noise voltage.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: December 29, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jang Hui Kim, Sang Chul Lee
  • Patent number: 10831329
    Abstract: An input sensing device includes a plurality of first sensing electrodes having a plurality of first sensor units extending in a first direction. A plurality of second sensing electrodes has a plurality of second sensor units extending in a second direction different from the first direction. A first strain gauge includes a first force electrode located proximate to a first electrode of the plurality of first sensing electrodes. A second force electrode is located proximate to a second electrode of the plurality of first sensing electrodes. A first connecting electrode connects to both of the first force electrode and the second force electrode.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: November 10, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jang Hui Kim, Hyung Chul Kim, A Ra Jo
  • Publication number: 20200319735
    Abstract: The touch sensor includes first touch electrode members disposed on a base layer and located in a sensing area, each of the first touch electrode members including a plurality of first touch electrodes arranged along a first direction, each of the first touch electrodes including a first opening; second touch electrode members disposed on the base layer and located in a sensing area, each of the second touch electrode members including a plurality of second touch electrodes arranged along a second direction, each of the second touch electrodes including a second opening; and a first pressure sensor disposed on the base layer and including a first strain gauge. A portion of the first strain gauge is located in the second sensing area, and the first strain gauge includes a portion located in the second sensing area and disposed in the same layer as the plurality of first touch electrodes and the plurality of second touch electrodes.
    Type: Application
    Filed: March 31, 2020
    Publication date: October 8, 2020
    Inventors: Jang Hui KIM, Ga Young KIM, Do Ik KIM, Sang Chul LEE, A Ra JO
  • Publication number: 20200285339
    Abstract: A touch sensor and a display device, in which the touch sensor includes: a base layer including a first region which is a flat portion, and a second region which is a curved portion extending from the first region; touch electrodes arranged on the base layer and each including an opening; a strain gauge disposed in the first region; and a temperature compensation pattern disposed in the second region.
    Type: Application
    Filed: March 4, 2020
    Publication date: September 10, 2020
    Inventors: Do Ik Kim, Jang-Hui Kim, Ga Young Kim, A Ra Jo
  • Publication number: 20200142539
    Abstract: Provided are a touch sensor and a display device. The touch sensor includes a base layer, first electrode members arranged on the base layer in a first direction and spaced apart from one another in a second direction, each first electrode members including a first opening and first touch electrodes, second electrode members arranged on the base layer in the second direction and spaced apart from one another in the first direction, each second electrode members including a second opening and second touch electrodes, a first strain gauge disposed in a first electrode row, a second strain gauge disposed in a first row, a first signal line connected to the first strain gauge, a second signal line connected to the first strain gauge, a third signal line connected to the second strain gauge and the second signal line, and a fourth signal line connected to the second strain gauge.
    Type: Application
    Filed: September 26, 2019
    Publication date: May 7, 2020
    Inventors: Ga Young KIM, Do Ik KIM, Jang Hui KIM