Patents by Inventor Sojung Jung

Sojung Jung 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: 11114039
    Abstract: A micro-display device comprises a silicon substrate in which a plurality of gate lines, a plurality of data lines, a plurality of emission signal lines, and a plurality of subpixels are disposed; a gate driver circuit disposed on a first side of a pixel array to drive the plurality of gate lines; an emission driver circuit driving the plurality of emission signal lines and disposed on a second side of the pixel array different from the first side of the pixel array where the gate driver circuit is disposed; a data driver circuit disposed on a third side of the pixel array to drive the plurality of data lines; a memory storing duty data regarding duty ratios of an emission signal applied to the plurality of emission signal lines; and a control circuit controlling signals applied to the gate driver circuit, the data driver circuit and the emission driver circuit, wherein the control circuit is set to have different emission times with respect to subpixels connected to the plurality of emission signal lines acc
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: September 7, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Sojung Jung, Beom-Jin Kim, Bongchoon Kwak
  • Patent number: 10692411
    Abstract: The embodiments of the present disclosure relate to a display device, a test circuit, and a test method thereof. More specifically, a display device may include a silicon substrate having a plurality of gate lines, a plurality of data lines, a plurality of sensing lines, and a pixel array on which a plurality of subpixels are arranged; a test circuit arranged on the silicon substrate, the test circuit configured to select at least one line of the plurality of data lines or the plurality of sensing lines, to convert a signal transmitted through the selected line into a digital signal, and to output test data; and a test pad unit configured to output the test data to a circuit outside the silicon substrate.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: June 23, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Beom-Jin Kim, Sunkyung Shin, Bongchoon Kwak, Sojung Jung
  • Publication number: 20200184904
    Abstract: A micro-display device comprises a silicon substrate in which a plurality of gate lines, a plurality of data lines, a plurality of emission signal lines, and a plurality of subpixels are disposed; a gate driver circuit disposed on a first side of a pixel array to drive the plurality of gate lines; an emission driver circuit driving the plurality of emission signal lines and disposed on a second side of the pixel array different from the first side of the pixel array where the gate driver circuit is disposed; a data driver circuit disposed on a third side of the pixel array to drive the plurality of data lines; a memory storing duty data regarding duty ratios of an emission signal applied to the plurality of emission signal lines; and a control circuit controlling signals applied to the gate driver circuit, the data driver circuit and the emission driver circuit, wherein the control circuit is set to have different emission times with respect to subpixels connected to the plurality of emission signal lines acc
    Type: Application
    Filed: December 4, 2019
    Publication date: June 11, 2020
    Applicant: LG Display Co., Ltd.
    Inventors: Sojung JUNG, Beom-Jin KIM, Bongchoon KWAK
  • Patent number: 10444882
    Abstract: Embodiments relate to a touch sensing circuit, a touch display device, and a touch sensing method. The touch sensing circuit may comprise a touch sensing process configured to output a touch driving signal during a touch sensing period to at least two touch electrodes, and to convert a touch sensing signal detected through each touch electrode, to which the touch driving signal is applied, during an analog-to-digital conversion period, into a digital sensing value, and a communication processor configured to transmit sensing data including the digital sensing value converted during the analog-to-digital conversion period to a touch controller, wherein the communication processor starts transmission of the sensing data including converted digital sensing values of at least some of touch sensing signals before each of touch sensing signals detected from the at least two touch electrodes are converted into a digital sensing value. The present invention enables quick touch sensing.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: October 15, 2019
    Assignee: LG DISPLAY CO., LTD.
    Inventor: Sojung Jung
  • Publication number: 20190197930
    Abstract: The embodiments of the present disclosure relate to a display device, a test circuit, and a test method thereof. More specifically, a display device may include a silicon substrate having a plurality of gate lines, a plurality of data lines, a plurality of sensing lines, and a pixel array on which a plurality of subpixels are arranged; a test circuit arranged on the silicon substrate, the test circuit configured to select at least one line of the plurality of data lines or the plurality of sensing lines, to convert a signal transmitted through the selected line into a digital signal, and to output test data; and a test pad unit configured to output the test data to a circuit outside the silicon substrate.
    Type: Application
    Filed: December 18, 2018
    Publication date: June 27, 2019
    Inventors: Beom-Jin KIM, Sunkyung SHIN, Bongchoon KWAK, Sojung JUNG
  • Publication number: 20180150168
    Abstract: Embodiments relate to a touch sensing circuit, a touch display device, and a touch sensing method. The touch sensing circuit may comprise a touch sensing process configured to output a touch driving signal during a touch sensing period to at least two touch electrodes, and to convert a touch sensing signal detected through each touch electrode, to which the touch driving signal is applied, during an analog-to-digital conversion period, into a digital sensing value, and a communication processor configured to transmit sensing data including the digital sensing value converted during the analog-to-digital conversion period to a touch controller, wherein the communication processor starts transmission of the sensing data including converted digital sensing values of at least some of touch sensing signals before each of touch sensing signals detected from the at least two touch electrodes are converted into a digital sensing value. The present invention enables quick touch sensing.
    Type: Application
    Filed: November 28, 2017
    Publication date: May 31, 2018
    Applicant: LG DISPLAY CO., LTD.
    Inventor: Sojung JUNG
  • Patent number: 9927929
    Abstract: A touch sensing system and a method for driving the same. The touch sensing system includes a pen with a resonant circuit embedded therein, XY electrodes including X electrodes and Y electrodes substantially perpendicular to the X electrodes, an antenna surrounding the XY electrodes, and a first touch driving circuit. The first touch driving circuit supplies a resonant inductive signal to the XY electrodes, analyzes a resonance signal received through the antenna, and decides a location and a pen pressure of the pen. The resonant inductive signal includes N periods each having a different duration, and wherein N is a positive integer equal to or greater than 2.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: March 27, 2018
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Dongjo Park, Sojung Jung
  • Patent number: 9600093
    Abstract: A touch sensing system includes a pen including a resonant circuit embedded therein, XY electrodes including X electrodes and Y electrodes perpendicular to the X electrodes, an antenna surrounding the XY electrodes, and a first touch driving circuit which transmits a resonant inductive signal to the pen through electric coupling and to receive a resonance signal from the pen through the antenna.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: March 21, 2017
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Dongjo Park, Sojung Jung
  • Patent number: 9594440
    Abstract: A touch sensing system includes a pen including at least one resonant circuit embedded therein, XY electrodes including X electrodes and Y electrodes perpendicular to the X electrodes, an antenna surrounding the XY electrodes, and a first touch driving circuit which supplies a resonant inductive signal to the XY electrodes, decides a location of the pen based on a resonance magnitude of a resonance signal received through the antenna, and decides a pen pressure of the pen based on a resonant frequency of the resonant circuit and an adjacent frequency of the resonant frequency measured while varying a frequency of the resonant inductive signal.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: March 14, 2017
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Dongjo Park, Sojung Jung
  • Publication number: 20150123940
    Abstract: A touch sensing system and a method for driving the same. The touch sensing system includes a pen with a resonant circuit embedded therein, XY electrodes including X electrodes and Y electrodes substantially perpendicular to the X electrodes, an antenna surrounding the XY electrodes, and a first touch driving circuit. The first touch driving circuit supplies a resonant inductive signal to the XY electrodes, analyzes a resonance signal received through the antenna, and decides a location and a pen pressure of the pen. The resonant inductive signal includes N periods each having a different duration, and wherein N is a positive integer equal to or greater than 2.
    Type: Application
    Filed: October 30, 2014
    Publication date: May 7, 2015
    Inventors: Dongjo PARK, Sojung Jung
  • Publication number: 20150091856
    Abstract: A touch sensing system includes a pen including at least one resonant circuit embedded therein, XY electrodes including X electrodes and Y electrodes perpendicular to the X electrodes, an antenna surrounding the XY electrodes, and a first touch driving circuit which supplies a resonant inductive signal to the XY electrodes, decides a location of the pen based on a resonance magnitude of a resonance signal received through the antenna, and decides a pen pressure of the pen based on a resonant frequency of the resonant circuit and an adjacent frequency of the resonant frequency measured while varying a frequency of the resonant inductive signal.
    Type: Application
    Filed: September 25, 2014
    Publication date: April 2, 2015
    Inventors: DONGJO PARK, SOJUNG JUNG
  • Publication number: 20150084899
    Abstract: A touch sensing system includes a pen including a resonant circuit embedded therein, XY electrodes including X electrodes and Y electrodes perpendicular to the X electrodes, an antenna surrounding the XY electrodes, and a first touch driving circuit which transmits a resonant inductive signal to the pen through electric coupling and to receive a resonance signal from the pen through the antenna.
    Type: Application
    Filed: September 26, 2014
    Publication date: March 26, 2015
    Inventors: Dongjo Park, Sojung Jung