Patents by Inventor Seokyu JANG

Seokyu JANG 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: 11527210
    Abstract: The present disclosure generally relates to a method of sensing characteristic value of circuit element and display device using it, which may shorten the threshold voltage sensing and compensation time of the driving transistor and the threshold voltage compensation time driving transistors by sensing the threshold voltage in a mobility sensing period of the driving transistor, calculate the threshold voltage using two or more sensing values of driving current for the driving transistor.
    Type: Grant
    Filed: June 9, 2021
    Date of Patent: December 13, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Seokyu Jang, Seungbaek Park
  • Publication number: 20210407437
    Abstract: The present disclosure generally relates to a method of sensing characteristic value of circuit element and display device using it, which may shorten the threshold voltage sensing and compensation time of the driving transistor and the threshold voltage compensation time driving transistors by sensing the threshold voltage in a mobility sensing period of the driving transistor, calculate the threshold voltage using two or more sensing values of driving current for the driving transistor.
    Type: Application
    Filed: June 9, 2021
    Publication date: December 30, 2021
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Seokyu JANG, SeungBaek PARK
  • Patent number: 11011129
    Abstract: Disclosed is a display device which is capable of increasing a lifespan of a gate driver by maintaining a deterioration balance among a plurality of pull-down transistors, wherein the display device may include a display panel for displaying an image, a gate driver for supplying a gate signal to the display panel, and a timing controller for supplying a gate driver control signal to the gate driver, wherein the timing controller is set in such a way that it is turned-off until after a predetermined one among the plurality of pull-down transistors inside the gate driver is driven by the use of reset signal supplied from a reset integrated circuit.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: May 18, 2021
    Assignee: LG Display Co., Ltd.
    Inventors: JinWoo Park, Seokyu Jang, ChangBok Lee
  • Patent number: 10573240
    Abstract: A display device includes a switching circuit; a sub-pixel having a driving transistor and an organic light emitting diode (OLED) with an anode connected to the driving transistor; a driving voltage supply line to supply a driving voltage to the OLED through the driving transistor; a base voltage supply line connected to a cathode of the OLED through the switching circuit; a ground line to supply a ground voltage to the switching circuit; a first capacitor between the driving voltage supply line and the ground line; and a second capacitor between the base voltage supply line and the ground line. The switching circuit selectively supplies one of a first level voltage and a second level voltage as the base voltage, and the second level voltage is higher than the first level voltage at the ground voltage.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: February 25, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: EungKyu Kim, YongKyu Park, Seokyu Jang
  • Patent number: 10467959
    Abstract: Disclosed is an organic light-emitting display device including: a display panel; a drive IC configured to supply a driving signal to the display panel; and a controller configured to operate in one of a first driving scheme, in which, when turned on, a sensing period of sensing characteristics of the display panel is executed, after which a display period of displaying an image on the display panel is executed, and a second driving scheme, in which, when turned on, the display period of displaying the image on the display panel is executed, the controller operating in the second driving scheme when turned on within a preset time after having been turned off.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: November 5, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: JinWoo Park, Seokyu Jang, ChangBok Lee
  • Publication number: 20190066620
    Abstract: Disclosed is a display device which is capable of increasing a lifespan of a gate driver by maintaining a deterioration balance among a plurality of pull-down transistors, wherein the display device may include a display panel for displaying an image, a gate driver for supplying a gate signal to the display panel, and a timing controller for supplying a gate driver control signal to the gate driver, wherein the timing controller is set in such a way that it is turned-off until after a predetermined one among the plurality of pull-down transistors inside the gate driver is driven by the use of reset signal supplied from a reset integrated circuit.
    Type: Application
    Filed: December 19, 2017
    Publication date: February 28, 2019
    Applicant: LG Display Co., Ltd.
    Inventors: JinWoo PARK, Seokyu JANG, ChangBok LEE
  • Publication number: 20190051239
    Abstract: Disclosed is an organic light-emitting display device including: a display panel; a drive IC configured to supply a driving signal to the display panel; and a controller configured to operate in one of a first driving scheme, in which, when turned on, a sensing period of sensing characteristics of the display panel is executed, after which a display period of displaying an image on the display panel is executed, and a second driving scheme, in which, when turned on, the display period of displaying the image on the display panel is executed, the controller operating in the second driving scheme when turned on within a preset time after having been turned off.
    Type: Application
    Filed: December 13, 2017
    Publication date: February 14, 2019
    Applicant: LG DISPLAY CO., LTD.
    Inventors: JinWoo PARK, Seokyu JANG, ChangBok LEE
  • Patent number: 10204565
    Abstract: Disclosed are an organic light emitting display panel, an organic light emitting display device, and a method of driving the organic light emitting display device. The organic light emitting display panel, the organic light emitting display device, and the method of driving the organic light emitting display device having a subpixel structure and a gate line connection structure in which two types of scan transistors within each subpixel can be individually turned on and off and image driving and various types of sensing driving can be performed while the aperture ratio increases through the individual on and off of the scan transistors.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: February 12, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Yong Kyu Park, Seokyu Jang, Chang Bok Lee
  • Publication number: 20170193923
    Abstract: Disclosed are an organic light emitting display panel, an organic light emitting display device, and a method of driving the organic light emitting display device. The organic light emitting display panel, the organic light emitting display device, and the method of driving the organic light emitting display device having a subpixel structure and a gate line connection structure in which two types of scan transistors within each subpixel can be individually turned on and off and image driving and various types of sensing driving can be performed while the aperture ratio increases through the individual on and off of the scan transistors.
    Type: Application
    Filed: December 23, 2016
    Publication date: July 6, 2017
    Inventors: Yong Kyu PARK, Seokyu JANG, Chang Bok LEE
  • Publication number: 20170162119
    Abstract: A display device includes a switching circuit; a sub-pixel having a driving transistor and an organic light emitting diode (OLED) with an anode connected to the driving transistor; a driving voltage supply line to supply a driving voltage to the OLED through the driving transistor; a base voltage supply line connected to a cathode of the OLED through the switching circuit; a ground line to supply a ground voltage to the switching circuit; a first capacitor between the driving voltage supply line and the ground line; and a second capacitor between the base voltage supply line and the ground line. The switching circuit selectively supplies one of a first level voltage and a second level voltage as the base voltage, and the second level voltage is higher than the first level voltage at the ground voltage.
    Type: Application
    Filed: December 2, 2016
    Publication date: June 8, 2017
    Applicant: LG DISPLAY CO., LTD.
    Inventors: EungKyu KIM, YongKyu PARK, Seokyu JANG