Patents by Inventor Suyun JU

Suyun JU 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: 11487371
    Abstract: The present embodiments relate to a touch technology and, more particularly, to a touch display device, which includes multiple first electrodes embedded in a display panel, at least one second electrode positioned outside the display panel, and a touch force sensing gap existing between the multiple first electrodes and the at least one second electrode, a method for driving the same, and a driving circuit for driving the multiple first electrodes and the at least one second electrode. The present embodiments, as described above, make it possible to sense not only a touch position, but also a touch force, with which the user presses the screen during a touch.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: November 1, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: CheolSe Kim, BuYeol Lee, YongChan Park, Suyun Ju
  • Patent number: 11467679
    Abstract: Disclosed is a touch screen device for transmitting button manipulation information based on a touch pen without using a separate wireless communication module. The touch screen device includes a touch screen including a plurality of touch electrodes, a touch driving circuit applying a touch electrode driving signal to the plurality of touch electrodes, and a touch pen receiving the touch electrode driving signal applied to the plurality of touch electrodes and transmitting a pen output signal to the touch screen in response to the received touch electrode driving signal. The touch pen includes at least one button, and when a user manipulates the at least one button, the touch pen adjusts the pen output signal.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: October 11, 2022
    Assignee: LG DISPLAY CO, LTD.
    Inventors: Suyun Ju, SungChul Kim, SangHyuck Bae, Sungsu Han, DoYoung Jung
  • Patent number: 11243644
    Abstract: A touch display device comprises a touch panel including a plurality of touch electrodes; and a touch driving circuit configured to sense one or more of the plurality of touch electrodes, wherein the touch driving circuit has an operation period including a plurality of touch intervals that includes a first sensing interval and a second sensing interval, and the first sensing interval includes at least a first time division sensing interval and the second sensing interval includes at least a second time division sensing interval, and wherein the touch driving circuit is configured to detect a pen signal output from a first pen through one or more touch electrodes of the plurality of touch electrodes during the first time division sensing interval, and detect a pen signal output from a second pen through one or more touch electrodes of the plurality of touch electrodes during the second time division sensing interval.
    Type: Grant
    Filed: December 24, 2019
    Date of Patent: February 8, 2022
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Suyun Ju, HyungUk Jang, Sungsu Han, DoYoung Jung, SangHyuck Bae, Jongsung Kim
  • Patent number: 11048360
    Abstract: Disclosed are a touch display device, a touch circuit, a pen, a touch system, and a multi-pen sensing method for receiving downlink signals output from two or more pens through one or more touch electrodes on a panel and distinguishably sensing the two or more pens based on unique information of the received downlink signals.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: June 29, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: HyungUk Jang, SeungSeok Oh, SangHyuck Bae, Sungsu Han, Suyun Ju, DoYoung Jung
  • Patent number: 11029790
    Abstract: A touch display device may include: a panel including a plurality of touch electrodes, and a touch circuit configured to: transfer a panel driving signal to the panel, and receive a pen information signal, output from a pen in response to the panel driving signal, through the panel, each of the panel driving signal and the pen information signal including a plurality of pulses, the pen information signal including one or more state sections among: an in-phase state section including pulses in phase with the pulses of the panel driving signal, an antiphase state section including pulses having a different phase from the pulses of the panel driving signal, and a passive state section distinguished from the in-phase state section and the antiphase state section.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: June 8, 2021
    Assignee: LG Display Co., Ltd.
    Inventors: Suyun Ju, HyungUk Jang, SangHyuck Bae, DoYoung Jung, SeungSeok Oh, Sungsu Han
  • Patent number: 10955964
    Abstract: A touchscreen display device includes a display panel, a touch sensor, and a touch circuit. The touch sensor is disposed in an area corresponding to the display panel to output an uplink signal including signal intensity information regarding an intensity of a downlink signal output from an active pen. The touch circuit controls the touch sensor to output the uplink signal.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: March 23, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: DoYoung Jung, HyungUk Jang, SangHyuck Bae, Sungsu Han, Suyun Ju, Jongsung Kim
  • Patent number: 10838539
    Abstract: There are provided a touch display device, a touch driving circuit, and a touch sensing method. More specifically, a touch display device includes a touch screen panel including a plurality of touch electrodes and a touch driving circuit configured to output a touch driving signal to at least a portion of the plurality of touch electrodes for sensing a touch. Upon detection of an event in which at least one first area of the touch screen panel is set as a touch sensing area and at least one second area of the touch screen panel is set as a non-touch sensing area, the touch driving circuit is configured to output the touch driving signal to one or more of the plurality of touch electrodes that correspond to the at least one first area of the touch screen panel.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: November 17, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: JuneYoun Hwang, BeomJin Kim, HyungUk Jang, SangHyuck Bae, Sungsu Han, Suyun Ju, DoYoung Jung
  • Patent number: 10768719
    Abstract: The aspects of the present disclosure relate to a touch display device, a touch system, a touch driving circuit, a pen, and a pen sensing method, and more particularly, to a touch display device, a touch system, a touch driving circuit, a pen, and a pen sensing method, which may receive a first downlink signal and a second downlink signal output from a pen through all or some of a plurality of touch electrodes and may sense the pen based on received signal strength for each touch electrode for the first downlink signal and received signal strength for each touch electrode for the second downlink signal. According to the aspects of the present disclosure, the pen may be accurately sensed even when a user uses the pen in a tilted manner.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: September 8, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Suyun Ju, HyungUk Jang, SangHyuck Bae, Sungsu Han, DoYoung Jung
  • Publication number: 20200264726
    Abstract: The present embodiments relate to a touch technology and, more particularly, to a touch display device, which includes multiple first electrodes embedded in a display panel, at least one second electrode positioned outside the display panel, and a touch force sensing gap existing between the multiple first electrodes and the at least one second electrode, a method for driving the same, and a driving circuit for driving the multiple first electrodes and the at least one second electrode. The present embodiments, as described above, make it possible to sense not only a touch position, but also a touch force, with which the user presses the screen during a touch.
    Type: Application
    Filed: May 11, 2020
    Publication date: August 20, 2020
    Inventors: CheolSe KIM, BuYeol LEE, YongChan PARK, Suyun JU
  • Publication number: 20200210021
    Abstract: A touch display device comprises a touch panel including a plurality of touch electrodes; and a touch driving circuit configured to sense one or more of the plurality of touch electrodes, wherein the touch driving circuit has an operation period including a plurality of touch intervals that includes a first sensing interval and a second sensing interval, and the first sensing interval includes at least a first time division sensing interval and the second sensing interval includes at least a second time division sensing interval, and wherein the touch driving circuit is configured to detect a pen signal output from a first pen through one or more touch electrodes of the plurality of touch electrodes during the first time division sensing interval, and detect a pen signal output from a second pen through one or more touch electrodes of the plurality of touch electrodes during the second time division sensing interval.
    Type: Application
    Filed: December 24, 2019
    Publication date: July 2, 2020
    Applicant: LG Display Co., Ltd.
    Inventors: Suyun JU, HyungUk JANG, Sungsu HAN, DoYoung JUNG, SangHyuck BAE, Jongsung KIM
  • Publication number: 20200201505
    Abstract: A touchscreen display device includes a display panel, a touch sensor, and a touch circuit. The touch sensor is disposed in an area corresponding to the display panel to output an uplink signal including signal intensity information regarding an intensity of a downlink signal output from an active pen. The touch circuit controls the touch sensor to output the uplink signal.
    Type: Application
    Filed: December 18, 2019
    Publication date: June 25, 2020
    Applicant: LG Display Co., Ltd.
    Inventors: DoYoung JUNG, HyungUk Jang, SangHyuck Bae, Sungsu Han, Suyun Ju, Jongsung Kim
  • Patent number: 10691248
    Abstract: The present embodiments relate to a touch technology and, more particularly, to a touch display device, which includes multiple first electrodes embedded in a display panel, at least one second electrode positioned outside the display panel, and a touch force sensing gap existing between the multiple first electrodes and the at least one second electrode, a method for driving the same, and a driving circuit for driving the multiple first electrodes and the at least one second electrode. The present embodiments, as described above, make it possible to sense not only a touch position, but also a touch force, with which the user presses the screen during a touch.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: June 23, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: CheolSe Kim, BuYeol Lee, YongChan Park, Suyun Ju
  • Publication number: 20200192516
    Abstract: A touch display device may include: a panel including a plurality of touch electrodes, and a touch circuit configured to: transfer a panel driving signal to the panel, and receive a pen information signal, output from a pen in response to the panel driving signal, through the panel, each of the panel driving signal and the pen information signal including a plurality of pulses, the pen information signal including one or more state sections among: an in-phase state section including pulses in phase with the pulses of the panel driving signal, an antiphase state section including pulses having a different phase from the pulses of the panel driving signal, and a passive state section distinguished from the in-phase state section and the antiphase state section.
    Type: Application
    Filed: February 26, 2020
    Publication date: June 18, 2020
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Suyun JU, HyungUk JANG, SangHyuck BAE, DoYoung JUNG, SeungSeok OH, Sungsu HAN
  • Patent number: 10664087
    Abstract: The present disclosure provides an in-cell touch type display device including multiple first electrodes embedded in a display panel, at least one second electrode positioned outside the display panel, and a touch force sensing gap exiting between the multiple first electrodes and the second electrode such that a capacitor is formed between the multiple first electrodes and the second electrode.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: May 26, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: CheolSe Kim, BuYeol Lee, YongChan Park, Suyun Ju
  • Patent number: 10606389
    Abstract: A touch display device may include: a panel including a plurality of touch electrodes, and a touch circuit configured to: transfer a panel driving signal to the panel, and receive a pen information signal, output from a pen in response to the panel driving signal, through the panel, each of the panel driving signal and the pen information signal including a plurality of pulses, the pen information signal including one or more state sections among: an in-phase state section including pulses in phase with the pulses of the panel driving signal, an antiphase state section including pulses having a different phase from the pulses of the panel driving signal, and a passive state section distinguished from the in-phase state section and the antiphase state section.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: March 31, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Suyun Ju, HyungUk Jang, SangHyuck Bae, DoYoung Jung, SeungSeok Oh, Sungsu Han
  • Patent number: 10496205
    Abstract: A touch sensing system and a method of driving the same are disclosed. The touch sensing system includes a touch screen integrated display panel provided with a plurality of touch sensors and a plurality of pixels, a timing controller time-dividing one display frame into a plurality of touch periods and a plurality of display periods, a microcontroller unit dividing a sensing mode of the plurality of touch sensors into a full scan mode and a local scan mode, and a touch integrated circuit (IC) sensing a finger touch input of the touch sensors through the touch periods in the full scan mode and time-division sensing a finger touch input and a pen touch input of the touch sensors through the touch periods in the local scan mode.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: December 3, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Doyoung Jung, Hyunwoo Jang, Hyunguk Jang, Sanghyuck Bae, Suyun Ju
  • Patent number: 10474280
    Abstract: A touch sensing system is disclosed. The touch sensing system includes an active stylus pen that generates a first pen driving signal for detecting a touch input in synchronization with a touch driving signal input from a touch screen and a second pen driving signal for detecting an additional input related to an additional function of the active stylus pen in a touch driving period and outputs the first and second pen driving signals to the touch screen; and a touch driving device that applies the touch driving signal to the touch screen, senses the first pen driving signal in a first period of the touch driving period, and senses the second pen driving signal in a second period of the touch driving period.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: November 12, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Hyunguk Jang, Cheolse Kim, Sungchul Kim, Sanghyuck Bae, Sungsu Han, Suyun Ju, Doyoung Jung
  • Patent number: 10372244
    Abstract: Disclosed is a touch screen device for transmitting pressure information based on a touch pen without a separate sensor being provided in a touch panel. The touch screen device includes a touch screen and a touch pen transmitting a pen output signal to the touch screen. The touch pen adjusts the pen output signal according to pressure which is applied thereto when the touch pen contacts the touch screen.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: August 6, 2019
    Assignee: LG DISPLAY CO., LTD.
    Inventors: DoYoung Jung, SungChul Kim, SangHyuck Bae, Sungsu Han, Suyun Ju
  • Publication number: 20190204939
    Abstract: The aspects of the present disclosure relate to a touch display device, a touch system, a touch driving circuit, a pen, and a pen sensing method, and more particularly, to a touch display device, a touch system, a touch driving circuit, a pen, and a pen sensing method, which may receive a first downlink signal and a second downlink signal output from a pen through all or some of a plurality of touch electrodes and may sense the pen based on received signal strength for each touch electrode for the first downlink signal and received signal strength for each touch electrode for the second downlink signal. According to the aspects of the present disclosure, the pen may be accurately sensed even when a user uses the pen in a tilted manner.
    Type: Application
    Filed: December 27, 2018
    Publication date: July 4, 2019
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Suyun Ju, HyungUk Jang, SangHyuck Bae, Sungsu Han, DoYoung Jung
  • Patent number: 10324324
    Abstract: Exemplary embodiments of the present invention relate to a touch technology, and more specifically, to a signal control circuit, a power control circuit, a drive circuit, a timing controller, a touch system, and a touch sensitive display device and a driving method thereof that can simply swing various voltages in a display device for a touch mode period by using a modulated ground voltage obtained by swinging a ground voltage, thereby effectively providing touch driving and preventing unnecessary parasitic capacitance from being generated not only in an active area but also in all other areas.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: June 18, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: SungChul Kim, HyungUk Jang, SangHyuck Bae, Sungsu Han, Suyun Ju, DoYoung Jung