Patents by Inventor JuneGun CHUNG

JuneGun CHUNG 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: 11294490
    Abstract: A communication interface that can decrease a transmission time between a touch driving circuit and a touch controller at the time of performing a pen touch sensing operation is provided. The touch display device can include a touch panel in which touch electrodes are arranged; a touch controller that outputs a first master signal to a first master pin corresponding to one end of a first interface, outputs a second master signal to a second master pin corresponding to one end of a second interface, receives first slave data from the first master pin, and receives second slave data from the second master pin; and a touch driving circuit that receives the first and second master signals, and outputs the first slave data to a first slave pin and outputs the second slave data to a second slave pin in response to the first master signal and the second master signal.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: April 5, 2022
    Assignee: LG DISPLAY CO., LTD.
    Inventor: JuneGun Chung
  • Patent number: 11194419
    Abstract: A touch sensor display device and an interface method thereof are provided. The touch sensor display device comprises a display panel in which a touch panel, gate lines, data lines, sensing lines, and subpixels are disposed; a gate driver circuit drives the gate lines; a data driver circuit drives the data lines; a touchscreen driver circuit drives the sensing lines, and includes a sleep module which controls switching to a sleep mode, and a wake-up module which performs a wake-up function to cancel and return to a normal state, and transmitting a sleep mode signal pattern or a wake-up signal pattern to the micro control unit; and a micro control unit determining whether a touch is detected, by the touchscreen driver circuit. Accordingly, power consumption is reduced in the display device. A mode change is performed by a driver circuit to enable rapid mode changes while reducing power consumption.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: December 7, 2021
    Assignee: LG Display Co., Ltd.
    Inventors: JuneGun Chung, Youngwoo Jo
  • Patent number: 11163398
    Abstract: Provided are a touch display device and a touch driving method thereof. Touch electrodes are grouped into a touch sensing block and non-touch blocks. The touch electrodes in the touch sensing block and the touch electrodes in the non-touch blocks are sensed at different sensing ratios. Power consumption is efficiently managed and sensitivity in touch sensing is maintained.
    Type: Grant
    Filed: December 7, 2020
    Date of Patent: November 2, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: HyunWoo Jang, JuneGun Chung, Youngwoo Jo, HongJu Lee
  • Publication number: 20210200413
    Abstract: Provided are a touch display device and a touch driving method thereof. Touch electrodes are grouped into a touch sensing block and non-touch blocks. The touch electrodes in the touch sensing block and the touch electrodes in the non-touch blocks are sensed at different sensing ratios. Power consumption is efficiently managed and sensitivity in touch sensing is maintained.
    Type: Application
    Filed: December 7, 2020
    Publication date: July 1, 2021
    Applicant: LG DISPLAY CO., LTD.
    Inventors: HyunWoo JANG, JuneGun CHUNG, Youngwoo JO, HongJu LEE
  • Publication number: 20210200356
    Abstract: A communication interface that can decrease a transmission time between a touch driving circuit and a touch controller at the time of performing a pen touch sensing operation is provided. The touch display device can include a touch panel in which touch electrodes are arranged; a touch controller that outputs a first master signal to a first master pin corresponding to one end of a first interface, outputs a second master signal to a second master pin corresponding to one end of a second interface, receives first slave data from the first master pin, and receives second slave data from the second master pin; and a touch driving circuit that receives the first and second master signals, and outputs the first slave data to a first slave pin and outputs the second slave data to a second slave pin in response to the first master signal and the second master signal.
    Type: Application
    Filed: December 9, 2020
    Publication date: July 1, 2021
    Applicant: LG DISPLAY CO., LTD.
    Inventor: JuneGun CHUNG
  • Publication number: 20200192544
    Abstract: A touch sensor display device and an interface method thereof are provided. The touch sensor display device comprises a display panel in which a touch panel, gate lines, data lines, sensing lines, and subpixels are disposed; a gate driver circuit drives the gate lines; a data driver circuit drives the data lines; a touchscreen driver circuit drives the sensing lines, and includes a sleep module which controls switching to a sleep mode, and a wake-up module which performs a wake-up function to cancel and return to a normal state, and transmitting a sleep mode signal pattern or a wake-up signal pattern to the micro control unit; and a micro control unit determining whether a touch is detected, by the touchscreen driver circuit. Accordingly, power consumption is reduced in the display device. A mode change is performed by a driver circuit to enable rapid mode changes while reducing power consumption.
    Type: Application
    Filed: December 5, 2019
    Publication date: June 18, 2020
    Inventors: JuneGun CHUNG, Youngwoo JO
  • Patent number: 10613679
    Abstract: The present disclosure provides a touch driving circuit, a touch display device, and a pen data recognition method by a touch circuit, and the touch circuit supplies a touch driving signal to two or more touch electrodes from among the plurality of touch electrodes in a pen data mode, generates sensing data for recognizing pen data which is transmitted from an active pen via the two or more touch electrodes in response to the touch driving signal, and performs range conversion and merger of two or more pieces of sensing data generated by detecting the pen data of same bit value, so as to generate summation sensing data.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: April 7, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventor: JuneGun Chung
  • Patent number: 10564773
    Abstract: Disclosed are a touch display device, a touch system, a touch master, and a communication method and, more particularly, are a touch display device, a touch system, a touch master, and a communication method which can provide a communication protocol and a communication interface based on a master-slave system in which a touch driving device operates as a touch slave and a touch controller operates as a touch master. Communication between the touch driving device and the touch controller can be accurately and rapidly performed and data transmission efficiency can increase.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: February 18, 2020
    Assignee: LG Display Co., Ltd.
    Inventor: JuneGun Chung
  • Publication number: 20190196644
    Abstract: The present disclosure provides a touch driving circuit, a touch display device, and a pen data recognition method by a touch circuit, and the touch circuit supplies a touch driving signal to two or more touch electrodes from among the plurality of touch electrodes in a pen data mode, generates sensing data for recognizing pen data which is transmitted from an active pen via the two or more touch electrodes in response to the touch driving signal, and performs range conversion and merger of two or more pieces of sensing data generated by detecting the pen data of same bit value, so as to generate summation sensing data.
    Type: Application
    Filed: December 17, 2018
    Publication date: June 27, 2019
    Applicant: LG DISPLAY CO., LTD.
    Inventor: JuneGun CHUNG
  • Publication number: 20180107338
    Abstract: Disclosed are a touch display device, a touch system, a touch master, and a communication method and, more particularly, are a touch display device, a touch system, a touch master, and a communication method which can provide a communication protocol and a communication interface based on a master-slave system in which a touch driving device operates as a touch slave and a touch controller operates as a touch master. Communication between the touch driving device and the touch controller can be accurately and rapidly performed and data transmission efficiency can increase.
    Type: Application
    Filed: October 16, 2017
    Publication date: April 19, 2018
    Applicant: LG Display Co., Ltd.
    Inventor: JuneGun CHUNG