Patents by Inventor Choon-Hyop Lee

Choon-Hyop 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: 11437442
    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: Grant
    Filed: June 8, 2020
    Date of Patent: September 6, 2022
    Inventors: Kang Won Lee, Do Ik Kim, Choon Hyop Lee, Jang Hui Kim, Sang Chul Lee
  • Patent number: 11372508
    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: Grant
    Filed: April 14, 2020
    Date of Patent: June 28, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Choon Hyop Lee, Kang Won Lee, Ga Young Kim, Jang Hui Kim, A Ra Jo
  • Publication number: 20220171441
    Abstract: A display device includes a display panel; a pressure sensor disposed on the display panel; and a lower bracket. The pressure sensor is disposed between the display panel and the lower bracket and is disposed on the lower bracket. The pressure sensor includes a first substrate, a first pressure sensing layer disposed between the first substrate and the lower bracket, a first driving electrode disposed between the first pressure sensing layer and the lower bracket, and a first sensing electrode spaced apart from the first driving electrode. A gap is present between the first pressure sensing layer, and the first driving electrode and the first sensing electrode.
    Type: Application
    Filed: February 11, 2020
    Publication date: June 2, 2022
    Inventors: CHOON HYOP LEE, KANG WON LEE, SEUNG HWAN CHUNG, SANG CHUL LEE
  • Patent number: 11327609
    Abstract: A display device including a display panel having a display area and a non-display area disposed around the display area; a touch sensor disposed on the display panel, the touch sensor comprising a sensing area corresponding to the display area, a peripheral area corresponding to the non-display area, and a pad unit disposed on a part of the peripheral area; a flexible printed circuit board disposed on the touch sensor in the peripheral area and connected to the pad unit; a polarization layer disposed on the touch sensor and a part of the flexible printed circuit board; and a printed layer disposed on at least an area between the flexible printed circuit board and the sensing area.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: May 10, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Choon Hyop Lee, Jung Mok Park, Hee Woong Park, Sang Wook Yoo, Ga Yeon Yun, Jeong Heon Lee, Byeong Kyu Jeon
  • Patent number: 11281339
    Abstract: A display device including a display panel having a display area and a non-display area disposed around the display area; a touch sensor disposed on the display panel, the touch sensor comprising a sensing area corresponding to the display area, a peripheral area corresponding to the non-display area, and a pad unit disposed on a part of the peripheral area; a flexible printed circuit board disposed on the touch sensor in the peripheral area and connected to the pad unit; a polarization layer disposed on the touch sensor and a part of the flexible printed circuit board; and a printed layer disposed on at least an area between the flexible printed circuit board and the sensing area.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: March 22, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Choon Hyop Lee, Jung Mok Park, Hee Woong Park, Sang Wook Yoo, Ga Yeon Yun, Jeong Heon Lee, Byeong Kyu Jeon
  • 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: 11231810
    Abstract: A display device includes: a base substrate; a self-light emitting element on the base substrate; a thin film encapsulation layer on the self-light emitting element; a first sensing electrode on the thin film encapsulation layer and including an opening; a second sensing electrode on the thin film encapsulation layer and spaced apart from the first sensing electrode; a conductive pattern in the opening and spaced apart from the first sensing electrode; and a sensor controller configured to detect a change of a mutual capacitance between the first sensing electrode and the second sensing electrode in a first mode and configured to detect a change of a mutual capacitance between the conductive pattern and the first sensing electrode in a second mode different from the first mode.
    Type: Grant
    Filed: June 19, 2020
    Date of Patent: January 25, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Do Ik Kim, Kang Won Lee, Choon Hyop Lee
  • Patent number: 11209940
    Abstract: A touch sensor includes a substrate, a touch input unit, a plurality of wires, and a pad unit. The touch input unit is disposed on the substrate and includes a plurality of sensing electrodes for sensing user touch. The pad unit includes a plurality of pads electrically connected to the sensing electrodes through the wires. The pads include a first pad. The first pad includes a first conductive film disposed on the substrate, an insulating film disposed on the first conductive film, and a second conductive film disposed on the insulating film. The insulating film includes a plurality of first-type holes and a plurality of second-type holes. Each first-type hole of the first-type holes is smaller than each second-type hole of the second-type holes.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: December 28, 2021
    Inventors: Chang Bum Kim, Jung Mok Park, Young Sik Kim, Choon Hyop Lee, Byeong Kyu Jeon
  • Patent number: 11150772
    Abstract: A display device includes a display panel having a display portion. A window is disposed above the display portion. The window includes a display area, on which a screen is displayed by the display portion, and a non-display area, disposed around the display area. The non-display area of the window includes a sensing portion and a non-sensing portion. The non-display area of the window includes a first light shielding member. The sensing portion includes a first conductive layer and a second conductive layer stacked on the first conductive layer with the first light shielding member interposed therebetween.
    Type: Grant
    Filed: July 20, 2020
    Date of Patent: October 19, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Choon Hyop Lee, Ga Yeon Yun
  • 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: 20210294475
    Abstract: A display device comprises: a display panel; a window; and a first pressure sensor. The display panel comprises: a planar portion; a first curved portion connected to one side of the planar portion; and a first side portion connected to one side of the first curved portion. The window is on the display panel. The first pressure sensor overlaps with the first side portion. Here, the first side portion is in a plane different from each of the planar portion and the first curved portion.
    Type: Application
    Filed: December 20, 2018
    Publication date: September 23, 2021
    Inventors: Choon Hyop LEE, Sang Chul LEE, Ga Young KIM, Kang Won LEE, Seung Hwan CHUNG, Do Ik KIM
  • Patent number: 11127796
    Abstract: A display panel includes: a printed circuit board disposed at one side of the display panel, the printed circuit board, having: a pattern portion including a surface, a first driving electrode and a first sensing electrode disposed on the first surface; and a cover portion facing the surface of the pattern portion and including a first pressure sensing layer overlapping the first driving electrode and the first sensing electrode.
    Type: Grant
    Filed: March 23, 2020
    Date of Patent: September 21, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kang Won Lee, Choon Hyop Lee, Seung Hwan Chung, Sang Chui Lee
  • Patent number: 11086427
    Abstract: A pressure sensor includes a first substrate and a second substrate; a first driving electrode and a second driving electrode disposed on a first surface of the first substrate facing the second substrate and coupled to a first coupling electrode, the second driving electrode being shorter than the first driving electrode; a first sensing electrode and a second sensing electrode disposed on the first surface of the first substrate and coupled to a second coupling electrode, the second sensing electrode being shorter than the first sensing electrode; a first pressure sensing layer disposed on a first surface of the second substrate in a position facing the first substrate and overlapping and spaced from the first driving electrode and the first sensing electrode by a gap; and a second pressure sensing layer contacting with the second driving electrode and the second sensing electrode and electrically coupling the second driving electrode and the second sensing electrode to each other.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: August 10, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Choon Hyop Lee, Kang Won Lee, Sang Chul Lee, Seung Hwan Chung
  • Patent number: 11079870
    Abstract: A display device includes: a display panel; a pressure sensor disposed below the display panel, the pressure sensor configured to detect pressure applied to the display panel; and a supporting layer disposed on a surface of the pressure sensor facing away from the display panel.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: August 3, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kang Won Lee, Choon Hyop Lee, Sang Chul Lee, Seung Hwan Chung
  • Patent number: 10990205
    Abstract: A display device includes a display panel having a display area and a non-display, an input sensing unit overlapping the display panel, a cover window overlapping the input sensing unit, a first electrode overlapping the non-display area and disposed between the cover window and the input sensing unit, a second electrode disposed between the cover window and the first electrode, a pressure-sensitive member disposed between the first electrode and the second electrode, and a first spacer and a second spacer both disposed between the first electrode and the second electrode. A first minimum thickness of the pressure-sensitive member corresponds to the first spacer. A second minimum thickness of the pressure-sensitive member corresponds to the second spacer and is unequal to the first minimum thickness of the pressure-sensitive member.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: April 27, 2021
    Inventor: Choon Hyop Lee
  • Patent number: 10969832
    Abstract: A display device including a display panel for displaying an image on a front surface of the display panel; a touch sensing unit provided on the display panel to sense a touch; an insulating film covering the touch sensing unit; a first circuit board of which one end is connected to the touch sensing unit; and a polarizing layer covering the touch sensing unit and a portion of the first circuit board.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: April 6, 2021
    Inventors: Kang Won Lee, Hee Woong Park, Jeong Heon Lee, Won Gu Cho, Mu Gyeom Kim, Choon Hyop Lee, Seung Lyong Bok
  • Patent number: 10942549
    Abstract: A display device including a display panel for displaying an image on a front surface of the display panel; a touch sensing unit provided on the display panel to sense a touch; an insulating film covering the touch sensing unit; a first circuit board of which one end is connected to the touch sensing unit; and a polarizing layer covering the touch sensing unit and a portion of the first circuit board.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: March 9, 2021
    Inventors: Kang Won Lee, Hee Woong Park, Jeong Heon Lee, Won Gu Cho, Mu Gyeom Kim, Choon Hyop Lee, Seung Lyong Bok
  • 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: 10936106
    Abstract: A display device includes: a display panel including a display area in which an image is displayed and a non-display area surrounding the display area; an input sensor disposed on the display panel; and a pressure sensor sensing a pressure, wherein the input sensor includes a sensing base substrate extending in a first extending direction, the sensing base substrate including a first bending area bent along an outer edge of the sensing base substrate, wherein the pressure sensor is disposed on the first bending area of the sensing base substrate, and overlaps with the display area.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: March 2, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kang Won Lee, Sang Chul Lee, Seung Hwan Chung, Young Sik Kim, Choon Hyop Lee, Yeon Sung Jung
  • Patent number: 10928961
    Abstract: A pressure sensor includes: first and second substrates; a first driving electrode and a first sensing electrode disposed on a first surface of the first substrate that faces the second substrate; a spacer disposed on the first surface of the first substrate between the first driving electrode and the first sensing electrode; and a first pressure sensing layer disposed on a first surface of the second substrate that faces the first substrate and overlapping with the first driving electrode and the first sensing electrode in a thickness direction.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: February 23, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kang Won Lee, Choon Hyop Lee, Seung Hwan Chung