Patents by Inventor Joon Yong Park

Joon Yong Park 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: 20250143107
    Abstract: Provided is a display device. A display device includes a substrate, a first conductive layer above the substrate, an active layer above the first conductive layer, a second conductive layer above the active layer, and including a transparent conductive oxide while not including indium (In), a third conductive layer above the second conductive layer, a transistor including a gate electrode at the second conductive layer, and a drain electrode and a source electrode at the active layer, and a light-emitting element including a first electrode at the third conductive layer and connected to the source electrode.
    Type: Application
    Filed: May 28, 2024
    Publication date: May 1, 2025
    Inventors: Joon Yong PARK, Sam Tae JEONG, Yung Bin CHUNG
  • Patent number: 12274093
    Abstract: A display device includes conductive layers including wires and conductive patterns in a display area and a pad area, a via layer on the conductive layers, a first electrode and a second electrode on the via layer in the display area and spaced apart from each other, a first insulating layer on the first electrode and the second electrode, light emitting elements on the first electrode and the second electrode spaced apart from each other on the first insulating layer, and a first connection electrode on the first electrode and electrically contacting the light emitting elements, and a second connection electrode on the second electrode and electrically contacting the light emitting elements, each of the conductive layers includes a first metal layer and a second metal layer on the first metal layer, and the second metal layer contains copper and has a grain size of about 155 nm or less.
    Type: Grant
    Filed: February 15, 2022
    Date of Patent: April 8, 2025
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Joon Yong Park, Gyung Min Baek, Shin Il Choi, Do Keun Song, Young Rok Kim, Jong Hyun Choung
  • Publication number: 20250107343
    Abstract: A display device may include a light emitting portion disposed on a base layer; a partition wall disposed adjacent to the light emitting portion; and a partition wall insulating layer covering at least a portion of the partition wall. The partition wall may include a first partition wall layer; a second partition wall layer disposed on the first partition wall layer; and a third partition wall layer disposed on the second partition wall layer. The third partition wall layer may include a Transparent Conductive Oxide (TCO) material, and the partition wall insulating layer may not cover a top surface of the light emitting portion.
    Type: Application
    Filed: June 17, 2024
    Publication date: March 27, 2025
    Applicant: Samsung Display Co., LTD.
    Inventors: Hyun Eok SHIN, Joon Yong PARK, Dong Min LEE, Yung Bin CHUNG
  • Publication number: 20250098428
    Abstract: A display device includes an anode electrode on the emission area of the substrate, a pixel-defining layer on the non-emission area of the substrate and including a first opening, a first bank layer on the pixel-defining layer, including a second opening, and including a conductive material, a second bank layer on the first bank layer and including a tip that protrudes over a side surface of the first bank layer toward the first opening, a cathode electrode on the anode electrode and contacting the side surface of the first bank layer, and an electrode pattern on the second bank layer and including a same material as the first cathode electrode. The cathode electrode and the electrode pattern are spaced apart from each other, and the electrode pattern covers a surface of the second bank layer facing the first opening in line with the protruding tip.
    Type: Application
    Filed: May 9, 2024
    Publication date: March 20, 2025
    Applicant: Samsung Display Co., LTD.
    Inventors: Hyun Eok SHIN, Joon Yong PARK, Dong Min LEE, Sung Soon IM
  • Publication number: 20250089463
    Abstract: A display device includes a substrate including a first emission area, a transmissive area, and a non-emission area disposed between the first emission area and the transmissive area; a pixel-defining layer disposed on the non-emission area of the substrate and defining a first opening; a bank structure disposed on the pixel-defining layer, defining a second opening, and including different materials; and a first light-emitting element disposed on the first emission area of the substrate and in contact with the bank structure, where the bank structure includes a first bank layer including a conductive material; and a second bank layer disposed on the first bank layer and including tips that protrude on opposite sides of the second bank layer toward the first opening and the transmissive area than side surfaces of the first bank layer.
    Type: Application
    Filed: April 11, 2024
    Publication date: March 13, 2025
    Inventors: Hyun Eok SHIN, Joon Yong PARK, Su Kyoung YANG, Dong Min LEE
  • Publication number: 20250060844
    Abstract: A display device includes a substrate including an emission area and a non-emission area; a thin film transistor layer positioned on the substrate; a touch buffer layer positioned on the thin film transistor layer; a connection electrode positioned on the touch buffer layer; a touch insulating layer positioned on the connection electrode; a first electrode positioned on the touch insulating layer, and overlapping the non-emission area; and a first touch sacrificial layer positioned between the touch insulating layer and the first electrode, wherein the first touch sacrificial layer does not overlap the emission area, and is positioned in an island shape while overlapping the non-emission area, and an inclination angle formed between the touch insulating layer and a side surface of the first touch sacrificial layer has an acute angle.
    Type: Application
    Filed: March 11, 2024
    Publication date: February 20, 2025
    Inventors: Sam Tae JEONG, Joon Yong PARK, Joon Woo BAE, Hyun Eok SHIN
  • Publication number: 20250056970
    Abstract: A display device includes a pixel electrode in a light emission area, a pixel defining layer which is on the pixel electrode and defines the light emission area, a light emitting layer and a common electrode on the pixel electrode, a bank on the pixel defining layer, the bank including a first bank layer defining a lower portion of a bank opening corresponding to the light emission area and a second bank layer which defines an upper portion of the bank opening and a tip of the bank, the tip including upper and lower surfaces of the second bank layer, a lower inorganic encapsulation layer which is on the bank and includes an inorganic pattern on the common electrode and facing and spaced apart from both the upper and lower surfaces of the tip, and an auxiliary pattern between the lower surface of the tip and the inorganic pattern.
    Type: Application
    Filed: March 8, 2024
    Publication date: February 13, 2025
    Inventors: Hyun Eok SHIN, Su Kyoung YANG, Dong Min LEE, Joon Yong PARK, Byung Soo SO, Yung Bin CHUNG
  • Publication number: 20250031550
    Abstract: A display device that includes a first pixel electrode disposed on a substrate; a pixel defining layer disposed on the substrate and exposing the first pixel electrode; a first light emitting layer disposed on the first pixel electrode; a first common electrode disposed on the first light emitting layer; a first bank layer disposed on the pixel defining layer; a second bank layer disposed on the first bank layer and including a side surface protruding from a side surface of the first bank layer; and a third bank layer disposed on the second bank layer and including a side surface protruding from the side surface of the first bank layer, wherein the second bank layer and the third bank layer each include a transparent conductive oxide (TCO), and the second bank layer further includes zinc (Zn).
    Type: Application
    Filed: March 12, 2024
    Publication date: January 23, 2025
    Applicant: Samsung Display Co., LTD.
    Inventors: Su Kyoung YANG, Joon Yong PARK, Hyun Eok SHIN, Dong Min LEE, Ju Hyun LEE
  • Patent number: 12193296
    Abstract: A conductive pattern is disclosed that includes a conductive layer including aluminum, a first capping layer disposed on the conductive layer and including titanium, and a second capping layer disposed on the first capping layer and including titanium nitride. A mixed region in which the aluminum and the titanium are mixed with each other is disposed in at least portions of the conductive layer and the first capping layer.
    Type: Grant
    Filed: April 11, 2022
    Date of Patent: January 7, 2025
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun Eok Shin, Do Keun Song, Dong Min Lee, Joon Yong Park, Hyun Ah Sung, Yun Jong Yeo, Dae Won Choi
  • Publication number: 20250008810
    Abstract: A display device includes a first pixel electrode disposed on a substrate and including a main portion and an edge portion, a pixel defining film disposed on the substrate, including a body portion and a protrusion portion, and exposing the first pixel electrode, a first light-emitting layer on the first pixel electrode, a first common electrode on the first light-emitting layer, a first bank layer on the pixel defining film, and a second bank layer disposed on the first bank layer and including a side surface protruding further than a side surface of the first bank layer. A thickness of the edge portion of the first pixel electrode is greater than a thickness of the main portion of the first pixel electrode, and a width of the protrusion portion of the pixel defining film is greater than a width of the edge portion of the first pixel electrode.
    Type: Application
    Filed: April 6, 2024
    Publication date: January 2, 2025
    Inventors: Joon Yong PARK, Su Kyoung YANG, Dong Min LEE, Hyun Eok SHIN
  • Publication number: 20240431145
    Abstract: A display device includes: a first pixel electrode disposed on a substrate, a sacrificial pattern disposed on an edge of the first pixel electrode, a pixel defining film including a body portion disposed on the substrate and a protrusion portion disposed on the sacrificial pattern and exposing the first pixel electrode, a first light emitting layer disposed on the first pixel electrode, a first common electrode disposed on the first light emitting layer, a first bank layer disposed on the pixel defining film, and a second bank layer disposed on the first bank layer and having a side surface protruding more than a side surface of the first bank layer. A first side surface of the sacrificial pattern is aligned with a side surface of the protrusion portion of the pixel defining film or protrudes more than the side surface of the protrusion portion of the pixel defining film.
    Type: Application
    Filed: January 19, 2024
    Publication date: December 26, 2024
    Inventors: Dong Min LEE, Jong Hee PARK, Su Kyoung YANG, Joon Yong PARK, Hyun Eok SHIN
  • Publication number: 20240397752
    Abstract: A display device includes a first pixel electrode and a second pixel electrode spaced apart from each other on a substrate, a first bank layer disposed on the substrate and exposing the first pixel electrode and the second pixel electrode, a first light-emitting layer disposed on the first pixel electrode and a second light-emitting layer disposed on the second pixel electrode, a first common electrode disposed on the first light-emitting layer and a second common electrode disposed on the second light-emitting layer, a second bank layer disposed on the first bank layer and exposing the first common electrode and the second common electrode, and a third bank layer disposed on the second bank layer and including metal nitride, wherein the third bank layer includes a tip protruding further than the sidewall of the second bank layer.
    Type: Application
    Filed: February 22, 2024
    Publication date: November 28, 2024
    Inventors: Hyun Eok SHIN, Joon Yong PARK, Dong Min LEE
  • Publication number: 20240397753
    Abstract: A display device includes a first electrode on a substrate; a pixel-defining layer disposed on the substrate and defining a first opening overlapping the first electrode, a bank structure disposed on the pixel-defining layer and defining a second opening overlapping the first opening; a first emissive layer disposed on the first electrode and disposed in the first opening; and a second electrode disposed on the first emissive layer and contacting the bank structure in the second opening. The bank structure includes a first base disposed on the pixel-defining layer and including a conductive material, and a second base disposed on the first base and including a tip protruding toward the first opening. The second base includes a first bank layer disposed on the first base and including a transparent conductive material, and a second bank layer disposed on the first bank layer and including a conductive material.
    Type: Application
    Filed: March 5, 2024
    Publication date: November 28, 2024
    Inventors: Joon Yong PARK, Hyun Eok SHIN, Su Kyoung YANG, Dong Min LEE
  • Publication number: 20240389418
    Abstract: A display device includes a substrate; a first pixel electrode disposed on the substrate; a pixel defining layer disposed on the substrate and defining a first opening overlapping the first pixel electrode; a bank structure disposed on the pixel defining layer and defining a second opening overlapping the first opening; a first light emitting layer disposed on the first pixel electrode and in the first opening; a first common electrode disposed on the first light emitting layer and in contact with the bank structure in the second opening; a first auxiliary electrode disposed on the first common electrode, completely covering the first common electrode in the second opening, and in contact with the bank structure; a second auxiliary electrode disposed on the first auxiliary electrode, completely covering the first auxiliary electrode in the second opening, and in contact with the bank structure; and a first encapsulation layer.
    Type: Application
    Filed: December 18, 2023
    Publication date: November 21, 2024
    Inventors: Joon Yong PARK, Hyun Eok SHIN, Su Kyoung YANG, Dong Min LEE
  • Publication number: 20240389394
    Abstract: A display device includes an emission area including a pixel electrode, an inorganic layer exposing the pixel electrode to outside the inorganic layer, a light emitting layer and a common electrode, and a bank layer on the inorganic layer and in which an opening is defined corresponding to the emission area. The bank layer includes a first bank layer including zinc, a second bank layer on the first bank layer, a third bank layer on the second bank layer, each of the first bank layer, the second bank layer and the third bank layer including a side surface which defines a portion of the opening in the bank layer; the side surface of the first bank layer recessed from the side surface of the second bank layer in a direction away from the first emission area; and the side surface of the second bank layer recessed from the side surface of the first bank layer in a direction away from the emission area.
    Type: Application
    Filed: January 11, 2024
    Publication date: November 21, 2024
    Inventors: Joon Yong PARK, Hyun Eok SHIN, Su Kyoung YANG, Dong Min LEE
  • Publication number: 20240381698
    Abstract: A display device includes a first pixel electrode disposed in a first emission area on a substrate, an insulating layer covering edges of the first pixel electrode, a first light-emitting layer disposed on the first pixel electrode and the insulating layer, a first common electrode disposed on the first light-emitting layer, a first bank disposed on the insulating layer, the first bank surrounding the first emission area, a second bank disposed on the first bank, around the first emission area, the second bank including tips projected from sides of the first bank, and an etch control layer disposed on a top surface of the first common electrode, on the sides of the first bank, and on bottom surfaces of the tips of the second bank.
    Type: Application
    Filed: December 28, 2023
    Publication date: November 14, 2024
    Inventors: Joon Yong PARK, Hyun Eok SHIN, Su Kyoung YANG, Dong Min LEE
  • Publication number: 20240381699
    Abstract: A display device includes: a pixel electrode; a pixel defining layer defining a first opening overlapping the pixel electrode; a bank structure disposed on the pixel defining layer and defining a second opening overlapping the first opening; a light emitting layer disposed on the pixel electrode; a common electrode disposed on the light emitting layer and in contact with the bank structure; and an encapsulation layer disposed on the common electrode and the bank structure. The bank structure includes: a first bank layer disposed on the pixel defining layer and including a conductive material; and a second bank layer disposed on the first bank layer and including a tip protruding toward the first opening more than a side surface of the first bank layer.
    Type: Application
    Filed: January 6, 2024
    Publication date: November 14, 2024
    Inventors: Hyun Eok SHIN, Joon Yong PARK, Su Kyoung YANG, Dong Min LEE
  • Publication number: 20240373678
    Abstract: A display device includes anode electrodes, an inorganic insulating layer exposing each anode electrode, a bank member on the inorganic insulating layer and including an opening overlapping each anode electrode, a light emitting layer on each anode electrode and including a portion on the inorganic insulating layer, and a cathode electrode on the light emitting layer and including a portion in contact with the bank member. The bank member includes a first bank layer, and a second bank layer on the first bank layer, including a metal material different from that of the first bank layer, and including a tip portion protruding than the first bank layer at a sidewall of the opening, and a lateral side of the inorganic insulating layer defining a pattern opening exposing each anode electrode and an end portion of the tip portion of the second bank layer are aligned to each other.
    Type: Application
    Filed: December 11, 2023
    Publication date: November 7, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: Hyun Eok SHIN, Joon Yong PARK, Dong Min LEE
  • Publication number: 20240357871
    Abstract: A display device includes anode electrodes spaced apart, a bank structure surrounding the anode electrodes, and including openings, a capping layer on the anode electrode, electrically connected thereto, and having at least a portion spaced apart from the anode electrodes, an inorganic insulating layer on the capping layer within the openings and exposing a portion of an upper surface of the capping layer, light emitting layers each on the capping layer and having a portion contacting a side surface of the bank structure, cathode electrodes on the light emitting layers and having a portion contacting the side surface of the bank structure, and auxiliary common electrodes on the cathode electrodes and having a portion disposed on the bank structure. The bank structure includes first and second bank layers having different material, and the second includes a tip protruding more than the first bank layer.
    Type: Application
    Filed: November 28, 2023
    Publication date: October 24, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: Hyun Eok SHIN, Joon Yong PARK, Dong Min LEE
  • Publication number: 20240334756
    Abstract: A display device may include a substrate including an emission area and a non-emission area, a transistor electrode above the substrate, a via layer over the transistor electrode, and defining a first opening exposing the transistor electrode, an organic layer above the via layer to fill the first opening, a first electrode above the organic layer, and electrically connected to the transistor electrode through the organic layer, an emission layer above the first electrode, and a second electrode over the emission layer.
    Type: Application
    Filed: October 17, 2023
    Publication date: October 3, 2024
    Inventors: Jae Yong KA, Joon Yong PARK, Hyun Eok SHIN