Patents by Inventor Yangsik Lee

Yangsik 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: 10845928
    Abstract: A display device includes a display panel; a touch sensor sensing a capacitance of a plurality of nodes corresponding to a plurality of touch points on the display panel, wherein plurality of nodes includes a center node and a peripheral node surrounding the center node; a touch controller sensing a touch by detecting a capacitance change of the center node and the peripheral node, wherein the capacitance change of the center node is greater than the peripheral node; and a conductive layer disposed over the touch sensor that increases the capacitance change of the peripheral node.
    Type: Grant
    Filed: July 10, 2019
    Date of Patent: November 24, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Yangsik Lee, HwiDeuk Lee, Jaeseung Kim
  • Patent number: 10845933
    Abstract: A display device includes: a display region formed in a first region on a substrate and including a plurality of pixels arranged therein; a touch electrode disposed on the display region and configured to sense a touch; and a non-display region disposed in a second region on the substrate. The non-display region includes a first pad portion, a second pad portion, a link portion, and a wiring portion in which a wiring is disposed so as to interconnect the first and second pad portions and the link portion. The wiring portion is disposed in a bending region where the substrate is bent, and the wiring includes a first wiring and a second wiring formed above the first wiring and having at least one point connected to the first wiring in the bending region.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: November 24, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Ruda Rhe, Yangsik Lee, KwangJo Hwang, DeukSu Lee
  • Patent number: 10845908
    Abstract: The present disclosure relates to a touch display device and a touch sensing method and, more specifically, to a touch display device and a touch sensing method that provide a single-layered touch sensor structure by a touch electrode connecting line that electrically connects touch electrodes arranged in one direction and is arranged to bypass and surround touch electrodes arranged in another direction, thereby enabling a simple manufacturing process, a high manufacturing yield, and a low manufacturing cost.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: November 24, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Ruda Rhe, JiHyun Jung, DeukSu Lee, SuChang An, JaeGyun Lee, Hyangmyoung Gwon, Yangsik Lee
  • Patent number: 10802634
    Abstract: The present disclosure relates to a touch display device and a touch sensing method and, more specifically, to a touch display device and a touch sensing method that provide a single-layered touch sensor structure by a touch electrode connecting line that electrically connects touch electrodes arranged in one direction and is arranged to bypass and surround touch electrodes arranged in another direction, thereby enabling a simple manufacturing process, a high manufacturing yield, and a low manufacturing cost.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: October 13, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Ruda Rhe, JiHyun Jung, DeukSu Lee, SuChang An, JaeGyun Lee, Hyangmyoung Gwon, Yangsik Lee
  • Patent number: 10795480
    Abstract: The present disclosure relates to a touch display device and a touch sensing method, and more specifically, to a touch display device and a touch sensing method that provides a single-layered touch sensor structure by a touch electrode connecting line that electrically connects touch electrodes arranged in one direction and is arranged to bypass and surround touch electrodes arranged in another direction, thereby enabling a simple manufacturing process, a high manufacturing yield, and a low manufacturing cost.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: October 6, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Ruda Rhe, JiHyun Jung, DeukSu Lee, SuChang An, JaeGyun Lee, Hyangmyoung Gwon, Yangsik Lee
  • Patent number: 10795483
    Abstract: Discussed is a touch display device having a touch circuit that includes an operational amplifier having a first input terminal for inputting a reference voltage, a second input terminal connected to a sensing target touch electrode, and an output terminal for outputting an output voltage, and wherein a common voltage applied to a common electrode and a reference voltage inputted to the first input terminal of the operational amplifier are synchronized with each other.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: October 6, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: KwangJo Hwang, HwiDeuk Lee, Yangsik Lee
  • Patent number: 10768732
    Abstract: A touch display panel and a touch display device are provided. A touch display device includes: an active area, a non-active area outside the active area, the non-active area including a bent area, a plurality of touch electrodes in the active area, a first insulating layer in the bent area, the first insulating layer including: a first region having a first height, and a second region having a second height lower than the first height, and a first touch line in the second region of the first insulating layer in the bent area in the non-active area.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: September 8, 2020
    Assignee: LG Display Co., Ltd.
    Inventor: Yangsik Lee
  • Patent number: 10761660
    Abstract: A touch display device includes a touch display panel on which a plurality of touch electrodes is arranged, at least one dam arranged in one direction in an outer edge area of the touch display panel and protruding from a bottom surface on which the dam is arranged, a plurality of touch lines arranged along a shape of the at least one dam in a direction intersecting the at least one dam, and a compensation pattern located in a lower boundary portion of the at least one dam between two adjacent touch lines among the plurality of touch lines.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: September 1, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Yangsik Lee, JaeGyun Lee, Hyangmyoung Gwon, DeukSu Lee
  • Patent number: 10739889
    Abstract: A touch display device and panel. In the display panel, an insulating film is provided on and in contact with an encapsulating layer, thereby reducing the entire thickness of the panel. The fabrication process of the touch display panel is simplified, thereby facilitating fabrication of the touch display device and panel.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: August 11, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: KwangJo Hwang, SuChang An, Yangsik Lee, DeukSu Lee
  • Publication number: 20200241680
    Abstract: A touch display device and a touch display panel are provided. The touch display panel includes a bend area adjacent to the periphery of the touch display panel, and touch lines disposed in the bend area have zigzag shapes that extend at angles with respect to a bend axis about which the bend area is bent. A first dielectric layer includes a compensation pattern that is located in the bend area and includes an opening that extends in a direction parallel to the bend axis. A second dielectric layer protrudes into the opening of the compensation pattern in a depth direction. During bending of the bend area, this configuration disperses force applied to portions of the touch lines and the dielectric layers in the bend area. This can consequently prevent both cracking due to bending and moisture permeation due to cracks.
    Type: Application
    Filed: April 10, 2020
    Publication date: July 30, 2020
    Inventors: Yangsik LEE, JiHyun JUNG, DeukSu LEE, JaeGyun LEE, Ruda RHE, Jeonghoon LEE, Su Chang AN
  • Publication number: 20200167038
    Abstract: Embodiments of the present disclosure relate to a touch panel and a touch display panel, wherein touch electrodes including bodies and wings are arranged so as to interlock with each other to thus reduce a difference in sensing sensitivity depending on position and a movement direction, thereby improving uniformity of touch sensing. In addition, the body and wing of the touch electrode can be arranged so as to be varied in length/width depending on the position thereof, so that the boundary area between the touch electrodes is increased, thereby improving the intensity of a touch-sensing signal, and so that sensing time is reduced, thereby enhancing the performance of touch sensing.
    Type: Application
    Filed: August 16, 2019
    Publication date: May 28, 2020
    Applicant: LG DISPLAY CO., LTD.
    Inventors: HwiDeuk LEE, DeukSu LEE, JaeGyun LEE, Yangsik LEE
  • Publication number: 20200167037
    Abstract: Example embodiments of the present disclosure relate to a touch display device.
    Type: Application
    Filed: July 29, 2019
    Publication date: May 28, 2020
    Applicant: LG Display Co., Ltd.
    Inventors: HwiDeuk LEE, Yangsik LEE, Jaeseung KIM
  • Patent number: 10649565
    Abstract: A touch display device and a touch display panel are provided. The touch display panel includes a bend area adjacent to the periphery of the touch display panel, and touch lines disposed in the bend area have zigzag shapes that extend at angles with respect to a bend axis about which the bend area is bent. A first dielectric layer includes a compensation pattern that is located in the bend area and includes an opening that extends in a direction parallel to the bend axis. A second dielectric layer protrudes into the opening of the compensation pattern in a depth direction. During bending of the bend area, this configuration disperses force applied to portions of the touch lines and the dielectric layers in the bend area. This can consequently prevent both cracking due to bending and moisture permeation due to cracks.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: May 12, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Yangsik Lee, JiHyun Jung, DeukSu Lee, JaeGyun Lee, Ruda Rhe, Jeonghoon Lee, Su Chang An
  • Publication number: 20200097122
    Abstract: An organic light-emitting display panel having a built-in touchscreen includes a plurality of subpixels defined therein by a plurality of data lines and a plurality of gate lines, an encapsulation layer having an encapsulating function, and a color filter layer located on the encapsulation layer. An organic light-emitting display device includes the organic light-emitting display panel. Both the organic light-emitting display panel having a built-in touchscreen and the organic light-emitting display device having a built-in touchscreen is provided with a structure enabling a touchscreen disposed therewithin.
    Type: Application
    Filed: November 27, 2019
    Publication date: March 26, 2020
    Inventors: Hyangmyoung GWON, SeungHee NAM, Kwon-Shik PARK, DeukSu LEE, BuYeol LEE, Yangsik LEE
  • Patent number: 10599274
    Abstract: Disclosed is related to a touch display device and a touch panel and, more specifically, relate to a touch display device and a touch panel having a structure capable of reducing a deviation of the parasitic capacitance, which is generated in touch sensor metals, such as touch electrodes or touch lines. According to the aspects of the disclosure, it is possible to reduce a parasitic capacitance deviation, thereby improving touch sensitivity.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: March 24, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: JaeGyun Lee, KwangJo Hwang, JiHyun Jung, DeukSu Lee, SuChang An, Ruda Rhe, Yangsik Lee
  • Patent number: 10572060
    Abstract: An embodiment disclosed herein provides a sensing unit that senses a touch corresponding to a capacitance formed by a first electrode and a second electrode. The first electrode includes a first driving electrode pattern and a first sensing electrode pattern, the first sensing electrode pattern being disposed in the first driving electrode pattern, the second electrode includes a second driving electrode pattern and a second sensing electrode pattern, the second driving electrode pattern being disposed in the second sensing electrode pattern. A first capacitive coupling is formed corresponding to the first touch electrode and the first sensing electrode, a second capacitive coupling is formed corresponding to the second driving electrode and the second sensing electrode, and a third capacitive coupling is formed corresponding to the first touch electrode and the second sensing electrode.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: February 25, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Yangsik Lee, KwangJo Hwang, JiHyun Jung, DeukSu Lee, SuChang An, JaeGyun Lee, Ruda Rhe
  • Patent number: 10572056
    Abstract: An organic light-emitting display panel having a built-in touchscreen includes a plurality of subpixels defined therein by a plurality of data lines and a plurality of gate lines, an encapsulation layer having an encapsulating function, and a color filter layer located on the encapsulation layer. An organic light-emitting display device includes the organic light-emitting display panel. Both the organic light-emitting display panel having a built-in touchscreen and the organic light-emitting display device having a built-in touchscreen is provided with a structure enabling a touchscreen disposed therewithin.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: February 25, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Hyangmyoung Gwon, SeungHee Nam, Kwon-Shik Park, DeukSu Lee, BuYeol Lee, Yangsik Lee
  • Publication number: 20200050311
    Abstract: The present embodiments generally relate to a display panel and a display device which may recognize touch. A display panel is provided in which a touch sensor and a touch line are disposed in an active area in which a part of an outer edge of the touch line is curved to correspond to a curved shape of the active area in the display panel so that the touch sensing is allowed in display panels having various shapes. Further, a touch display device is provided in which an open area is located between two adjacent touch lines disposed on the display panel so that touch sensing is allowed also in the display panel including an open area such as a hole or a notch.
    Type: Application
    Filed: October 22, 2019
    Publication date: February 13, 2020
    Inventors: Ruda RHE, KwangJo HWANG, JiHyun JUNG, DeukSu LEE, SuChang AN, JaeGyun LEE, Yangsik LEE
  • Patent number: 10551979
    Abstract: A touch display device and a touch display panel. Touch lines and contact pads are disposed between touch electrodes, arranged in touch electrode lines in the touch display panel, and a driver circuit. A total of the area of each touch line and the area of the corresponding contact pad has a predetermined value. Differences in parasitic capacitance among the touch lines according to the positions of the touch electrodes are compensated for. It is possible to prevent the accuracy of sensing from being lowered by differences in parasitic capacitance among the touch electrodes disposed in different positions.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: February 4, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Yangsik Lee, Jae Gyun Lee, Deuk Su Lee
  • Publication number: 20200026408
    Abstract: Discussed are a touch display panel, a touch display device, and a driving method thereof, wherein a constant voltage is applied to a cathode electrode during a period for sensing a finger touch or a pen touch, thereby performing touch sensing while performing display driving. In addition, a signal having the same phase and potential as the signal applied to the touch electrode is applied to the cathode electrode during a period for transmitting an uplink signal to the pen, thereby eliminating parasitic capacitance between the touch electrode and the cathode electrode, preventing transmission delay of the uplink signal, improving the recognition rate of the uplink signal, and enhancing the performance of pen-touch sensing.
    Type: Application
    Filed: July 19, 2019
    Publication date: January 23, 2020
    Applicant: LG DISPLAY CO., LTD.
    Inventors: HwiDeuk LEE, Sangkyu KIM, Taeyun KIM, Yangsik LEE, Jaeseung KIM