Patents by Inventor Ji Su Na

Ji Su Na 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).

  • Publication number: 20250006120
    Abstract: A display device includes: a plurality of data lines extending in a first direction, and first to third pixels connected to the plurality of data lines. The first pixel includes a first pixel electrode overlapping the plurality of data lines in a plan view in a thickness direction. The second pixel includes a second pixel electrode spaced apart from the plurality of data lines in the plan view in the thickness direction. The third pixel includes a third pixel electrode overlapping the plurality of data lines in the plan view in the thickness direction.
    Type: Application
    Filed: September 16, 2024
    Publication date: January 2, 2025
    Inventors: Ki Wook KIM, Yang Wan KIM, Ji Su NA, Joong Soo MOON, Kyoung Jin PARK, Myeong Hee SEO, Seon I JEONG, Chang Kyu JIN
  • Publication number: 20240404439
    Abstract: A display device includes a substrate, a circuit layer, a light emitting element layer, and a display driving circuit. The circuit layer comprises demux circuit units side by side in a demux area of a non-display area of the substrate and electrically connected between data lines and the display driving circuit, test signal supply lines in the non-display area and transmitting test signals for testing the lighting state of light emitting elements of the light emitting element layer, and test pad connection lines respectively electrically connected to test signal pads in the sub-area and extending to the non-display area. The test signal supply lines are electrically connected to the test pad connection lines through test line connection contact holes, respectively. The test line connection contact holes are in a test connection area which is a part of the demux area adjacent to the sub-area.
    Type: Application
    Filed: August 12, 2024
    Publication date: December 5, 2024
    Inventors: Won Mi HWANG, Ji Su NA, Su Mi JANG
  • Patent number: 12125433
    Abstract: A display device includes: a plurality of data lines extending in a first direction, and first to third pixels connected to the plurality of data lines. The first pixel includes a first pixel electrode overlapping the plurality of data lines in a plan view in a thickness direction. The second pixel includes a second pixel electrode spaced apart from the plurality of data lines in the plan view in the thickness direction. The third pixel includes a third pixel electrode overlapping the plurality of data lines in the plan view in the thickness direction.
    Type: Grant
    Filed: October 6, 2021
    Date of Patent: October 22, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ki Wook Kim, Yang Wan Kim, Ji Su Na, Joong Soo Moon, Kyoung Jin Park, Myeong Hee Seo, Seon I Jeong, Chang Kyu Jin
  • Publication number: 20240349555
    Abstract: Provided is a display device which comprises a substrate, a plurality of pixels disposed on the substrate, a first initialization voltage line disposed on the substrate along a first direction, and a second initialization voltage line disposed on a different layer from the first initialization voltage line, wherein the second initialization voltage line may include a horizontal portion disposed along the first direction and a vertical portion disposed along a second direction crossing the first direction, and the vertical portion may be disposed between a plurality of pixels adjacent to each other in the first direction.
    Type: Application
    Filed: June 21, 2024
    Publication date: October 17, 2024
    Inventors: Ji Su NA, Won Kyu KWAK, Yang Wan KIM, Young Jin CHO
  • Patent number: 12062308
    Abstract: A display device includes a substrate, a circuit layer, a light emitting element layer, and a display driving circuit. The circuit layer comprises demux circuit units side by side in a demux area of a non-display area of the substrate and electrically connected between data lines and the display driving circuit, test signal supply lines in the non-display area and transmitting test signals for testing the lighting state of light emitting elements of the light emitting element layer, and test pad connection lines respectively electrically connected to test signal pads in the sub-area and extending to the non-display area. The test signal supply lines are electrically connected to the test pad connection lines through test line connection contact holes, respectively. The test line connection contact holes are in a test connection area which is a part of the demux area adjacent to the sub-area.
    Type: Grant
    Filed: September 6, 2023
    Date of Patent: August 13, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Won Mi Hwang, Ji Su Na, Su Mi Jang
  • Patent number: 12058904
    Abstract: Provided is a display device which comprises a substrate, a plurality of pixels disposed on the substrate, a first initialization voltage line disposed on the substrate along a first direction, and a second initialization voltage line disposed on a different layer from the first initialization voltage line, wherein the second initialization voltage line may include a horizontal portion disposed along the first direction and a vertical portion disposed along a second direction crossing the first direction, and the vertical portion may be disposed between a plurality of pixels adjacent to each other in the first direction.
    Type: Grant
    Filed: May 20, 2021
    Date of Patent: August 6, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ji Su Na, Won Kyu Kwak, Yang Wan Kim, Young Jin Cho
  • Patent number: 12022706
    Abstract: In a display device including a notch portion of a non-emission region, the display device includes: a plurality of pixels; a plurality of scan lines connected to the plurality of pixels; and a load adjusting portion connected to the scan lines on both sides of the notch portion and adjacent to an upper end portion of the notch portion, wherein the load adjusting portion includes: a load adjusting wiring connected to the scan lines on both sides of the notch portion; a first load adjusting electrode in a different layer from the load adjusting wiring and overlapping the load adjusting wiring; and a second load adjusting electrode in a different layer from the load adjusting wiring and the first load adjusting electrode and overlapping the load adjusting wiring.
    Type: Grant
    Filed: April 17, 2023
    Date of Patent: June 25, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Young Jin Cho, Ji Su Na, Joong-Soo Moon
  • Publication number: 20240194103
    Abstract: A display device includes a substrate, a circuit layer, a light emitting element layer, and a display driving circuit. The circuit layer comprises demux circuit units side by side in a demux area of a non-display area of the substrate and electrically connected between data lines and the display driving circuit, test signal supply lines in the non-display area and transmitting test signals for testing the lighting state of light emitting elements of the light emitting element layer, and test pad connection lines respectively electrically connected to test signal pads in the sub-area and extending to the non-display area. The test signal supply lines are electrically connected to the test pad connection lines through test line connection contact holes, respectively. The test line connection contact holes are in a test connection area which is a part of the demux area adjacent to the sub-area.
    Type: Application
    Filed: September 6, 2023
    Publication date: June 13, 2024
    Inventors: Won Mi HWANG, Ji Su NA, Su Mi JANG
  • Patent number: 12010882
    Abstract: A display device includes a signal line extending in a first direction, a first transistor configured to control a driving current, a light-emitting element electrically coupled to a second electrode of the first transistor, a second transistor electrically coupled to a first electrode of the first transistor and configured to transfer a data voltage, a first scan line electrically coupled to a gate electrode of the second transistor and extending in the first direction, a third transistor including a first electrode electrically coupled to the second electrode of the first transistor and a second electrode electrically coupled to a gate electrode of the first transistor and a second scan line electrically coupled to a gate electrode of the third transistor and extending in the first direction, wherein the second scan line overlaps one selected from among the signal line and the first scan line.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: June 11, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Young Jin Cho, Ji Su Na, Joong Soo Moon, Yang Wan Kim, Chang Kyu Jin
  • Patent number: 11990093
    Abstract: A display device includes pixels electrically connected to first scan lines, second scan lines, and emission lines, a first scan driver that applies first scan signals to the first scan lines, a second scan driver that applies second scan signals to the second scan lines, an emission control driver that applies emission signals to the emission lines, and a power supply that generates and outputs a first high voltage and a second high voltage. The second scan driver receives the first high voltage. The first scan driver and the emission control driver share the second high voltage.
    Type: Grant
    Filed: March 6, 2023
    Date of Patent: May 21, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ji Su Na, Yang Wan Kim, Jung Hun Yi, Min Woo Byun
  • Publication number: 20240122003
    Abstract: A display device includes: a circuit layer including: demux circuits in a demux area of a non-display area and electrically connected between data lines and a display driving circuit; a first higher-priority output connection line electrically connected to a higher-priority output terminal of a first demux circuit from among the demux circuits, and extending to the display area; a first lower-priority output connection line electrically connected to a lower-priority output terminal of the first demux circuit, and extending to the display area; and a first input connection line electrically connected to an input terminal of the first demux circuit. One of the first higher-priority output connection line, the first lower-priority output connection line, or the first input connection line is included in the same conductive layer as that of the data lines, and the others are included in a conductive layer different from that of the data lines.
    Type: Application
    Filed: June 27, 2023
    Publication date: April 11, 2024
    Inventors: Ji Su NA, Su Mi JANG, Won Mi HWANG
  • Patent number: 11908872
    Abstract: A display device includes: a substrate; a first scan line arranged along a first direction on the substrate; a shield electrode overlapping a part of the first scan line in a direction that is perpendicular to a plane of the substrate; a second connection electrode on the shield electrode; and a data line arranged along a second direction on the second connection electrode, and connected with the second connection electrode, wherein the shield electrode overlapping the first scan line and the second connection electrode in a direction that is perpendicular to a plane of the substrate.
    Type: Grant
    Filed: November 3, 2021
    Date of Patent: February 20, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Young Jin Cho, Ji Su Na, Yang Wan Kim
  • Patent number: 11756485
    Abstract: An emission driver includes stages outputting an emission control signal. At least one of the stages includes an input circuit controlling voltages of a first node and a second node, an output circuit supplying a voltage of first power or a voltage of second power to an output terminal as the emission control signal in response to a voltage of a third node and a voltage of a fourth node, a first signal processor controlling the voltage of the fourth node, a second signal processor controlling the voltage of the fourth node, and a third signal processor controlling the voltage of the third node electrically connected to the first node in response to signals supplied to the second input terminal and the third input terminal and the voltage of the first node.
    Type: Grant
    Filed: April 4, 2022
    Date of Patent: September 12, 2023
    Assignee: Samsung Display Co., Ltd
    Inventor: Ji Su Na
  • Publication number: 20230282653
    Abstract: A display device includes: a substrate including a display area and a non-display area; a light blocking layer disposed on the substrate; and a semiconductor layer disposed on the light blocking layer, wherein the light blocking layer includes a plurality of flat plate portions disposed in the display area, a first connector connected to the flat plate portions in a first direction, a second connector connected to the flat plate portions in a second direction perpendicular to the first direction, and an outer portion disposed in the non-display area, and the first connector and the outer portion are directly connected to each other, and a width of the outer portion is greater than a width of the first connector.
    Type: Application
    Filed: December 30, 2022
    Publication date: September 7, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: Joong-Soo MOON, CHANG-YEOL LEE, Won Kyu KWAK, Ji Su NA, Bong Won LEE, Jin Tae JEONG
  • Publication number: 20230255072
    Abstract: In a display device including a notch portion of a non-emission region, the display device includes: a plurality of pixels; a plurality of scan lines connected to the plurality of pixels; and a load adjusting portion connected to the scan lines on both sides of the notch portion and adjacent to an upper end portion of the notch portion, wherein the load adjusting portion includes: a load adjusting wiring connected to the scan lines on both sides of the notch portion; a first load adjusting electrode in a different layer from the load adjusting wiring and overlapping the load adjusting wiring; and a second load adjusting electrode in a different layer from the load adjusting wiring and the first load adjusting electrode and overlapping the load adjusting wiring.
    Type: Application
    Filed: April 17, 2023
    Publication date: August 10, 2023
    Inventors: Young Jin CHO, Ji Su NA, Joong-Soo MOON
  • Publication number: 20230215371
    Abstract: An organic light emitting diode (“OLED”) display includes a semiconductor layer on a substrate, first and second signal lines on the semiconductor layer, a shield layer on the first and second signal lines, a data line on the shield layer, and an OLED on the data line, where the transistor includes a driving transistor, a second transistor connected to the first signal line and the data line, and a third transistor including a gate electrode connected to the first signal line, a third electrode connected to a second electrode of the driving transistor, and a fourth electrode connected to a gate electrode of the driving transistor, the shield layer includes an overlapped portion overlapping at least a part of the connection portion and non-overlaps the second transistor, and the shield layer is separated from the first and second signal lines with a gap therebetween in a plan view.
    Type: Application
    Filed: March 9, 2023
    Publication date: July 6, 2023
    Inventors: Ji Su NA, Joong-Soo MOON, Chae Han HYUN, Yang Wan KIM
  • Publication number: 20230206847
    Abstract: A display device includes pixels electrically connected to first scan lines, second scan lines, and emission lines, a first scan driver that applies first scan signals to the first scan lines, a second scan driver that applies second scan signals to the second scan lines, an emission control driver that applies emission signals to the emission lines, and a power supply that generates and outputs a first high voltage and a second high voltage. The second scan driver receives the first high voltage. The first scan driver and the emission control driver share the second high voltage.
    Type: Application
    Filed: March 6, 2023
    Publication date: June 29, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: Ji Su NA, Yang Wan KIM, Jung Hun YI, Min Woo BYUN
  • Patent number: 11631731
    Abstract: In a display device including a notch portion of a non-emission region, the display device includes: a plurality of pixels; a plurality of scan lines connected to the plurality of pixels; and a load adjusting portion connected to the scan lines on both sides of the notch portion and adjacent to an upper end portion of the notch portion, wherein the load adjusting portion includes: a load adjusting wiring connected to the scan lines on both sides of the notch portion; a first load adjusting electrode in a different layer from the load adjusting wiring and overlapping the load adjusting wiring; and a second load adjusting electrode in a different layer from the load adjusting wiring and the first load adjusting electrode and overlapping the load adjusting wiring.
    Type: Grant
    Filed: February 10, 2021
    Date of Patent: April 18, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Young Jin Cho, Ji Su Na, Joong-Soo Moon
  • Patent number: 11610546
    Abstract: An organic light emitting diode (“OLED”) display includes a semiconductor layer on a substrate, first and second signal lines on the semiconductor layer, a shield layer on the first and second signal lines, a data line on the shield layer, and an OLED on the data line, where the transistor includes a driving transistor, a second transistor connected to the first signal line and the data line, and a third transistor including a gate electrode connected to the first signal line, a third electrode connected to a second electrode of the driving transistor, and a fourth electrode connected to a gate electrode of the driving transistor, the shield layer includes an overlapped portion overlapping at least a part of the connection portion and non-overlaps the second transistor, and the shield layer is separated from the first and second signal lines with a gap therebetween in a plan view.
    Type: Grant
    Filed: November 12, 2021
    Date of Patent: March 21, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ji Su Na, Joong-Soo Moon, Chae Han Hyun, Yang Wan Kim
  • Patent number: 11600228
    Abstract: A display device includes pixels electrically connected to first scan lines, second scan lines, and emission lines, a first scan driver that applies first scan signals to the first scan lines, a second scan driver that applies second scan signals to the second scan lines, an emission control driver that applies emission signals to the emission lines, and a power supply that generates and outputs a first high voltage and a second high voltage. The second scan driver receives the first high voltage. The first scan driver and the emission control driver share the second high voltage.
    Type: Grant
    Filed: February 15, 2022
    Date of Patent: March 7, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ji Su Na, Yang Wan Kim, Jung Hun Yi, Min Woo Byun