Patents by Inventor Jae-Sung Yu

Jae-Sung Yu 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: 11862086
    Abstract: A pixel circuit and a display device including the same are disclosed. The pixel circuit includes a driving element including a first electrode connected to a first node, a first gate electrode connected to a second node, a second electrode connected to a third node, and a second gate electrode to which a preset voltage is applied; a light emitting element including an anode electrode connected to a fourth node and a cathode electrode to which a low-potential power supply voltage is applied; a first switch element connected between the first node and the second node; a second switch element connected between the third node and the fourth node; a first capacitor connected to the first gate electrode of the driving element; and a second capacitor connected to the third node.
    Type: Grant
    Filed: July 6, 2022
    Date of Patent: January 2, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: Jae Hoon Park, Jae Sung Yu
  • Patent number: 11854480
    Abstract: A pixel circuit, a method for driving a pixel circuit and a display device. The pixel circuit includes a driving element including a first electrode connected to a first node, a first gate electrode connected to a second node, a second electrode connected to a third node, and a second gate electrode to which a preset voltage is applied; a light emitting element including an anode electrode connected to a fourth node and a cathode electrode to which a low-potential power supply voltage is applied, the light emitting element being driven according to a current from the driving element; a first switch element connected between the first node and the second node; and a second switch element connected between the third node and the fourth node.
    Type: Grant
    Filed: June 23, 2022
    Date of Patent: December 26, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Jae Sung Yu, Jae Hoon Park
  • Publication number: 20230333422
    Abstract: Disclosed is an LCD device which realizes decreased thickness, simplified process, and decreased cost by using a common electrode for formation of electric field to drive liquid crystal as a sensing electrode, and removing a touch screen from an upper surface of the liquid crystal panel, the LCD device comprising gate and data lines crossing each other to define plural pixels on a lower substrate; a pixel electrode in each of the plural pixels; plural common electrode blocks patterned at the different layer from the pixel electrode, wherein the common electrode blocks, together with the pixel electrode, forms an electric field, and senses a user's touch; and plural sensing lines electrically connected with the common electrode blocks, wherein, if the sensing line is electrically connected with one of the common electrode blocks, the sensing line is insulated from the remaining common electrode blocks.
    Type: Application
    Filed: June 17, 2023
    Publication date: October 19, 2023
    Applicant: LG Display Co., Ltd.
    Inventors: Heesun SHIN, Seok Woo LEE, Jae Sung YU, Ju Han KIM, Sun Jung LEE, In Hyuk SONG
  • Patent number: 11749207
    Abstract: A gate driving circuit and a display device including the same are discussed. A signal transmitter of the gate driving circuit can include a first charge controller configured to charge a first control node in response to a voltage of a VST node, a second charge controller configured to charge a second control node using a first transistor that is turned on in response to an (N+1)th clock generated following an Nth clock, a first discharge controller configured to discharge the first control node in a charging period of the second control node, and a second discharge controller configured to discharge the second control node when the voltage of the VST node is a high voltage or in a charging period of the first control node.
    Type: Grant
    Filed: August 23, 2022
    Date of Patent: September 5, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Yeon Woo Shin, Jae Sung Yu
  • Patent number: 11721290
    Abstract: A gate driving circuit and a display device including the same are disclosed. The gate driving circuit includes signal transmitters receiving a start pulse, a shift clock, a charge/discharge clock, a back-bias clock, a high-potential driving voltage, and a low-potential reference voltage, and connected in a cascade structure. An Nth (N is a positive integer) signal transmitter of the signal transmitters includes a first control node; a second control node; a first controller controlling charging and discharging of the first control node by using at least one transistor to which the back-bias clock is inputted; a second controller controlling charging and discharging of the second control node; a first output buffer outputting a carry pulse in response to voltages of the first and second control nodes; and a second output buffer outputting a gate pulse.
    Type: Grant
    Filed: September 26, 2022
    Date of Patent: August 8, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Jae Sung Yu, Jae Hoon Park
  • Patent number: 11714309
    Abstract: Disclosed is an LCD device which realizes decreased thickness, simplified process, and decreased cost by using a common electrode for formation of electric field to drive liquid crystal as a sensing electrode, and removing a touch screen from an upper surface of the liquid crystal panel, the LCD device comprising gate and data lines crossing each other to define plural pixels on a lower substrate; a pixel electrode in each of the plural pixels; plural common electrode blocks patterned at the different layer from the pixel electrode, wherein the common electrode blocks, together with the pixel electrode, forms an electric field, and senses a user's touch; and plural sensing lines electrically connected with the common electrode blocks, wherein, if the sensing line is electrically connected with one of the common electrode blocks, the sensing line is insulated from the remaining common electrode blocks.
    Type: Grant
    Filed: December 27, 2021
    Date of Patent: August 1, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Heesun Shin, Seok Woo Lee, Jae Sung Yu, Ju Han Kim, Sun Jung Lee, In Hyuk Song
  • Publication number: 20230110320
    Abstract: A gate driving circuit and a display device including the same are discussed. A signal transmitter of the gate driving circuit can include a first charge controller configured to charge a first control node in response to a voltage of a VST node, a second charge controller configured to charge a second control node using a first transistor that is turned on in response to an (N+1)th clock generated following an Nth clock, a first discharge controller configured to discharge the first control node in a charging period of the second control node, and a second discharge controller configured to discharge the second control node when the voltage of the VST node is a high voltage or in a charging period of the first control node.
    Type: Application
    Filed: August 23, 2022
    Publication date: April 13, 2023
    Applicant: LG Display Co., Ltd.
    Inventors: Yeon Woo SHIN, Jae Sung YU
  • Patent number: 11620949
    Abstract: A pixel circuit and a display device including the same are disclosed. The pixel circuit includes: a driving element including electrodes respectively connected to a first node to receive a first constant voltage, a second node, and a third node; a light emitting element including an anode connected to a fourth node and a cathode to receive a second constant voltage; a first switch to provide a data voltage to the second node; a second switch to provide a third constant voltage to the second node; a third switch to provide a fourth constant voltage to the fourth node; a fourth switch to provide the first constant voltage to the first node; a fifth switch to electrically connect the third node to the fourth node.
    Type: Grant
    Filed: August 1, 2022
    Date of Patent: April 4, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Jae Sung Yu, Jae Hoon Park
  • Publication number: 20230097004
    Abstract: A gate driving circuit and a display device including the same are disclosed. The gate driving circuit includes signal transmitters receiving a start pulse, a shift clock, a charge/discharge clock, a back-bias clock, a high-potential driving voltage, and a low-potential reference voltage, and connected in a cascade structure. An Nth (N is a positive integer) signal transmitter of the signal transmitters includes a first control node; a second control node; a first controller controlling charging and discharging of the first control node by using at least one transistor to which the back-bias clock is inputted; a second controller controlling charging and discharging of the second control node; a first output buffer outputting a carry pulse in response to voltages of the first and second control nodes; and a second output buffer outputting a gate pulse.
    Type: Application
    Filed: September 26, 2022
    Publication date: March 30, 2023
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Jae Sung YU, Jae Hoon PARK
  • Publication number: 20230074010
    Abstract: A pixel circuit and a display device including the same are disclosed. The pixel circuit includes: a driving element including electrodes respectively connected to a first node to receive a first constant voltage, a second node, and a third node; a light emitting element including an anode connected to a fourth node and a cathode to receive a second constant voltage; a first switch to provide a data voltage to the second node; a second switch to provide a third constant voltage to the second node; a third switch to provide a fourth constant voltage to the fourth node; a fourth switch to provide the first constant voltage to the first node; a fifth switch to electrically connect the third node to the fourth node.
    Type: Application
    Filed: August 1, 2022
    Publication date: March 9, 2023
    Applicant: LG Display Co., Ltd.
    Inventors: Jae Sung YU, Jae Hoon PARK
  • Patent number: 11594180
    Abstract: A pixel circuit and a display device including the same are disclosed. The pixel circuit includes: a driving element including electrodes respectively connected to a first node to receive a first constant voltage, a second node, and a third node; a light emitting element including an anode connected to a fourth node and a cathode to receive a second constant voltage; a first switch to provide a data voltage to the second node; a second switch to provide a third constant voltage to the second node; a third switch to provide a fourth constant voltage to the fourth node; a fourth switch to provide the first constant voltage to the first node; a fifth switch to electrically connect the third node to the fourth node.
    Type: Grant
    Filed: August 1, 2022
    Date of Patent: February 28, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Jae Sung Yu, Jae Hoon Park
  • Publication number: 20230010040
    Abstract: A pixel circuit, a method for driving a pixel circuit and a display device. The pixel circuit includes a driving element including a first electrode connected to a first node, a first gate electrode connected to a second node, a second electrode connected to a third node, and a second gate electrode to which a preset voltage is applied; a light emitting element including an anode electrode connected to a fourth node and a cathode electrode to which a low-potential power supply voltage is applied, the light emitting element being driven according to a current from the driving element; a first switch element connected between the first node and the second node; and a second switch element connected between the third node and the fourth node.
    Type: Application
    Filed: June 23, 2022
    Publication date: January 12, 2023
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Jae Sung YU, Jae Hoon PARK
  • Publication number: 20230010212
    Abstract: A pixel circuit and a display device including the same are disclosed. The pixel circuit includes a driving element including a first electrode connected to a first node, a first gate electrode connected to a second node, a second electrode connected to a third node, and a second gate electrode to which a preset voltage is applied; a light emitting element including an anode electrode connected to a fourth node and a cathode electrode to which a low-potential power supply voltage is applied; a first switch element connected between the first node and the second node; a second switch element connected between the third node and the fourth node; a first capacitor connected to the first gate electrode of the driving element; and a second capacitor connected to the third node.
    Type: Application
    Filed: July 6, 2022
    Publication date: January 12, 2023
    Inventors: Jae Hoon PARK, Jae Sung YU
  • Publication number: 20220121051
    Abstract: Disclosed is an LCD device which realizes decreased thickness, simplified process, and decreased cost by using a common electrode for formation of electric field to drive liquid crystal as a sensing electrode, and removing a touch screen from an upper surface of the liquid crystal panel, the LCD device. comprising gate and data lines crossing each other to define plural pixels on a lower substrate; a pixel electrode in each of the plural pixels; plural common electrode blocks patterned at the different layer from the pixel electrode, wherein the common electrode blocks, together with the pixel electrode, forms an electric field, and senses a user's touch; and plural sensing lines electrically connected with the common electrode blocks, wherein, if the sensing line is electrically connected with one of the common electrode blocks, the sensing line is insulated from the remaining common electrode blocks.
    Type: Application
    Filed: December 27, 2021
    Publication date: April 21, 2022
    Applicant: LG Display Co., Ltd.
    Inventors: Heesun Shin, Seok Woo Lee, Jae Sung Yu, Ju Han Kim, Sun Jung Lee, In Hyuk Song
  • Patent number: 11237421
    Abstract: Disclosed is an LCD device which realizes decreased thickness, simplified process, and decreased cost by using a common electrode for formation of electric field to drive liquid crystal as a sensing electrode, and removing a touch screen from an upper surface of the liquid crystal panel, the LCD device comprising gate and data lines crossing each other to define plural pixels on a lower substrate; a pixel electrode in each of the plural pixels; plural common electrode blocks patterned at the different layer from the pixel electrode, wherein the common electrode blocks, together with the pixel electrode, forms an electric field, and senses a user's touch; and plural sensing lines electrically connected with the common electrode blocks, wherein, if the sensing line is electrically connected with one of the common electrode blocks, the sensing line is insulated from the remaining common electrode blocks.
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: February 1, 2022
    Assignee: LG Display Co., Ltd
    Inventors: Heesun Shin, Seok Woo Lee, Jae Sung Yu, Ju Han Kim, Sun Jung Lee, In Hyuk Song
  • Publication number: 20200319491
    Abstract: Disclosed is an LCD device which realizes decreased thickness, simplified process, and decreased cost by using a common electrode for formation of electric field to drive liquid crystal as a sensing electrode, and removing a touch screen from an upper surface of the liquid crystal panel, the LCD device comprising gate and data lines crossing each other to define plural pixels on a lower substrate; a pixel electrode in each of the plural pixels; plural common electrode blocks patterned at the different layer from the pixel electrode, wherein the common electrode blocks, together with the pixel electrode, forms an electric field, and senses a user's touch; and plural sensing lines electrically connected with the common electrode blocks, wherein, if the sensing line is electrically connected with one of the common electrode blocks, the sensing line is insulated from the remaining common electrode blocks.
    Type: Application
    Filed: June 23, 2020
    Publication date: October 8, 2020
    Applicant: LG Display Co., Ltd.
    Inventors: Heesun SHIN, Seok Woo LEE, Jae Sung YU, Ju Han KIM, Sun Jung LEE, In Hyuk SONG
  • Patent number: 10775913
    Abstract: A touch sensor integrated display device includes a plurality of common electrode blocks serving as touch driving blocks and touch sensing blocks. Conductive lines connected to the touch driving blocks and touch sensing blocks are routed towards an inactive area of the display device by directly across the active area. The conductive lines are positioned within one or more organic dielectric layers formed under the common electrode blocks and pixel electrodes, but above the data lines of the display device.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: September 15, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Jae Sung Yu, SangSoo Hwang
  • Patent number: 10718968
    Abstract: Disclosed is an LCD device which realizes decreased thickness, simplified process, and decreased cost by using a common electrode for formation of electric field to drive liquid crystal as a sensing electrode, and removing a touch screen from an upper surface of the liquid crystal panel, the LCD device comprising gate and data lines crossing each other to define plural pixels on a lower substrate; a pixel electrode in each of the plural pixels; plural common electrode blocks patterned at the different layer from the pixel electrode, wherein the common electrode blocks, together with the pixel electrode, forms an electric field, and senses a user's touch; and plural sensing lines electrically connected with the common electrode blocks, wherein, if the sensing line is electrically connected with one of the common electrode blocks, the sensing line is insulated from the remaining common electrode blocks.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: July 21, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Heesun Shin, Seok Woo Lee, Jae Sung Yu, Ju Han Kim, Sun Jung Lee, In Hyuk Song
  • Patent number: 10437118
    Abstract: Disclosed are an LCD device and a method of manufacturing the same, in which a passivation layer and a pixel electrode are simultaneously formed by a single mask process using a half tone mask, and thus, manufacturing efficiency increases, and a defective contact due to loss of the pixel electrode can be prevented in a pad area. The LCD device includes a pad part including a pad area and a contact area. The LCD device includes a pixel pad formed in the pad area, a pixel bar formed in the contact area, and a bridge layer contacting the pixel pad with the pixel bar. The bridge layer is formed as a single layer or multi layers, and formed of one or more of a transparent conductive material and an opaque conductive material.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: October 8, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Young Ki Jung, Jae Sung Yu, In Hyuk Song, Jae Hoon Park, Han Seok Lee
  • Patent number: 10095420
    Abstract: A storage device includes a memory device configured to store data and a memory controller connected to the memory device through a data strobe line and a plurality of data lines. The storage device adds a predetermined specific pattern in front of data and processes data input following the specific pattern as valid data during a read or write operation. The specific pattern is provided in alignment with a data strobe signal (DQS) latency cycle. The memory controller detects a specific pattern input from the memory device during a read operation and processes data input following the specific pattern as valid data when the detected specific pattern matches an internally stored specific pattern.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: October 9, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae-Sung Yu, Kui-Yon Mun, Youngwook Kim