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: 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
  • Publication number: 20230031335
    Abstract: Provided are a display device. The display device comprises: a display unit defined by a display area and a non-display area located outside the display area, and including pixels arranged in the display area, first sensing wirings electrically connected to the pixels, and auxiliary voltage wirings electrically separated from the pixels; and a sensing unit electrically connected to the first sensing wirings, wherein the first sensing wirings and the auxiliary voltage wirings extend in a first direction and are sequentially arranged along a second direction perpendicular to the first direction at first intervals, the first sensing wirings are spaced apart from each other along the second direction at second intervals greater than the first intervals and are electrically separated from each other, and the auxiliary voltage wirings are electrically connected to each other.
    Type: Application
    Filed: October 17, 2022
    Publication date: February 2, 2023
    Inventors: Ki Wook Kim, Kwang Min Kim, Yang Wan Kim, Ji Su Na, Min Woo Byun
  • Patent number: 11482173
    Abstract: Provided are a display device. The display device comprises: a display unit defined by a display area and a non-display area located outside the display area, and including pixels arranged in the display area, first sensing wirings electrically connected to the pixels, and auxiliary voltage wirings electrically separated from the pixels; and a sensing unit electrically connected to the first sensing wirings, wherein the first sensing wirings and the auxiliary voltage wirings extend in a first direction and are sequentially arranged along a second direction perpendicular to the first direction at first intervals, the first sensing wirings are spaced apart from each other along the second direction at second intervals greater than the first intervals and are electrically separated from each other, and the auxiliary voltage wirings are electrically connected to each other.
    Type: Grant
    Filed: December 3, 2021
    Date of Patent: October 25, 2022
    Inventors: Ki Wook Kim, Kwang Min Kim, Yang Wan Kim, Ji Su Na, Min Woo Byun
  • Publication number: 20220310013
    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: February 15, 2022
    Publication date: September 29, 2022
    Applicant: Samsung Display Co., LTD.
    Inventors: Ji Su NA, Yang Wan KIM, Jung Hun YI, Min Woo BYUN
  • Patent number: 11450271
    Abstract: A display device includes a display panel for driving a plurality of pixels. Each of the plurality of pixels includes: a light-emitting element; a driving transistor for controlling a driving current flowing through the light-emitting element; a first transistor for selectively applying a data voltage to a first node, a second transistor for receiving an emission signal from an emission control line to selectively apply a driving voltage to the first node; and a first capacitor connected between the first node and the emission control line. The first node is a source electrode of the driving transistor.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: September 20, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventor: Ji Su Na
  • Publication number: 20220230591
    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: Application
    Filed: April 4, 2022
    Publication date: July 21, 2022
    Inventor: Ji Su NA
  • Patent number: 11386847
    Abstract: An organic light emitting diode (OLED) display includes: a display area comprising a plurality of pixel rows configured to emit light in response to a light emission signal; a light emission signal generator at the periphery of the display area, and including a plurality of light emission signal stages connected to the plurality of pixel rows; and a first high voltage transmission line and a second high voltage transmission line connected to the light emission signal generator, wherein the first high voltage transmission line is connected to a plurality of odd-numbered light emission signal stages among the plurality of light emission signal stages, and the second high voltage transmission line is connected to a plurality of even-numbered light emission signal stages among the plurality of light emission signal stages.
    Type: Grant
    Filed: January 8, 2021
    Date of Patent: July 12, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min Woo Byun, Ji Su Na, Jong Won Park, Yang Wan Kim
  • Publication number: 20220208088
    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: October 6, 2021
    Publication date: June 30, 2022
    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
  • Patent number: 11348521
    Abstract: A display device includes a plurality of pixels. A pixel includes an organic light emitting diode and a pixel circuit including a first transistor that includes a gate electrode connected with a first node, a first electrode connected with a second node, and a second electrode connected with a third node; a second transistor that includes a gate electrode connected with a first gate line, a first electrode connected with a data line, and a second electrode connected with the second node; a third transistor that includes a gate electrode connected with a third gate line, a first electrode connected with the third node, and a second electrode connected with the first node; and a fourth transistor that includes a gate electrode connected with a second gate line, a first electrode connected with the third gate line, and a second electrode connected with the first node.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: May 31, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Young Jin Cho, Ji Su Na, Yang Wan Kim
  • Publication number: 20220139964
    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: Application
    Filed: November 3, 2021
    Publication date: May 5, 2022
    Inventors: Young Jin CHO, Ji Su NA, Yang Wan KIM
  • Patent number: 11295672
    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: August 14, 2020
    Date of Patent: April 5, 2022
    Inventor: Ji Su Na