Patents by Inventor Hyoung Sub LEE

Hyoung Sub LEE 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: 20240109327
    Abstract: An inkjet head includes a nozzle which ejects an ink and includes an inner wall through which the ink passes, a head surface which exposes the nozzle and is connected to first end of the inner wall and an ink supply unit which supplies the ink to the nozzle and includes a flow path connected to a second end of the inner wall opposite to the first end, and the head surface, the inner wall, and the flow path are coated with different coating films, respectively.
    Type: Application
    Filed: May 19, 2023
    Publication date: April 4, 2024
    Inventors: JAESIK KIM, WOO YONG SUNG, SEUNGHO YOON, HYOUNG SUB LEE, HYEMIN LEE
  • Publication number: 20240107853
    Abstract: A display device includes: a display panel including a base layer, a light emitting element layer, and an encapsulation layer; and an input detection unit disposed on the display panel, wherein the display panel includes: a first side and a second side, wherein the encapsulation layer includes an organic encapsulation layer including: an inclined part adjacent to the first side and the second side; and a flat part extending from the inclined part, wherein a first angle formed by the inclined part with respect to an upper surface of the base layer in a first part of the display panel and input detection unit adjacent to the first side is less than a second angle formed by the inclined part with respect to the upper surface of the base layer in a second part of the display panel and input detection unit adjacent to the second side.
    Type: Application
    Filed: December 11, 2023
    Publication date: March 28, 2024
    Inventors: JINHO HYUN, HYOUNG SUB LEE, HYEMIN LEE, WOO YONG SUNG
  • Patent number: 11871640
    Abstract: A display device includes: a display panel including a base layer, a light emitting element layer, and an encapsulation layer; and an input detection unit disposed on the display panel, wherein the display panel includes: a first side and a second side, wherein the encapsulation layer includes an organic encapsulation layer including: an inclined part adjacent to the first side and the second side; and a flat part extending from the inclined part, wherein a first angle formed by the inclined part with respect to an upper surface of the base layer in a first part of the display panel and input detection unit adjacent to the first side is less than a second angle formed by the inclined part with respect to the upper surface of the base layer in a second part of the display panel and input detection unit adjacent to the second side.
    Type: Grant
    Filed: December 24, 2022
    Date of Patent: January 9, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jinho Hyun, Hyoung Sub Lee, Hyemin Lee, Woo Yong Sung
  • Publication number: 20230255050
    Abstract: A display device includes a substrate including a front portion, a first side portion extending from the front portion along a first direction, a second side portion extending from the front portion along a second direction, and a corner portion between the first and second side portions and that includes a cut-out pattern; a first light emitting element on the front portion of the substrate; a second light emitting element on the cut-out pattern of the substrate; a first dam between the front portion and the corner portion; a second dam on the cut-out pattern, the second dam that surrounds the second light emitting element; an encapsulation layer on the substrate and that covers the first light emitting element, the second light emitting element, the first dam, and the second dam; and an organic passivation layer in a gap space between the first dam and the second dam.
    Type: Application
    Filed: November 17, 2022
    Publication date: August 10, 2023
    Inventors: JIN HO HYUN, Hee Chang Yoon, Hyoung Sub Lee, Hye Min Lee
  • Publication number: 20230217780
    Abstract: A display device includes: a display panel including a base layer, a light emitting element layer, and an encapsulation layer; and an input detection unit disposed on the display panel, wherein the display panel includes: a first side and a second side, wherein the encapsulation layer includes an organic encapsulation layer including: an inclined part adjacent to the first side and the second side; and a flat part extending from the inclined part, wherein a first angle formed by the inclined part with respect to an upper surface of the base layer in a first part of the display panel and input detection unit adjacent to the first side is less than a second angle formed by the inclined part with respect to the upper surface of the base layer in a second part of the display panel and input detection unit adjacent to the second side.
    Type: Application
    Filed: December 24, 2022
    Publication date: July 6, 2023
    Inventors: JINHO HYUN, HYOUNG SUB LEE, HYEMIN LEE, WOO YONG SUNG
  • Patent number: 11678509
    Abstract: A display device includes: a substrate including a display area, the display area including a front area and a corner area disposed at a corner of the display area; a main dam disposed between the front area and the corner area; and a plurality of corner dams disposed in the corner area. The corner area may include a plurality of stripe areas defined by the plurality of corner dams. The plurality of corner dams extend from the main dam and is disposed along an edge of the plurality of stripe areas.
    Type: Grant
    Filed: May 18, 2021
    Date of Patent: June 13, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin Ho Hyun, Hyoung Sub Lee, Hye Min Lee, Woo Yong Sung
  • Publication number: 20230180514
    Abstract: A display panel includes a base layer including a display area and a non-display area adjacent to the display area, a plurality of light-emitting elements disposed in the display area, a hydrophobic layer disposed in the non-display area and spaced apart from the light-emitting elements, an insulating layer disposed on the light-emitting elements and including an upper surface and an inclined surface inclined with respect to the upper surface, and a plurality of patterns contacting with the hydrophobic layer, and the plurality of patterns is spaced apart from the inclined surface.
    Type: Application
    Filed: September 22, 2022
    Publication date: June 8, 2023
    Inventors: HYEMIN LEE, HEECHANG YOON, HYOUNG SUB LEE, JINHO HYUN
  • Publication number: 20230122827
    Abstract: A display device includes a first region including a first light emitting element including a first electrode, a second region including a second light emitting element including a second electrode, a pixel defining layer including a first sidewall defining a first opening corresponding to the first electrode and a second sidewall defining a second opening corresponding to the second electrode, a first spacer which protrudes from the pixel defining layer in the first region and includes a first edge closest to the first opening, and a second spacer which protrudes from the pixel defining layer in the second region and includes a second edge closest to the second opening. A distance between the first sidewall and the first edge, is smaller than a distance between the second sidewall and the second edge.
    Type: Application
    Filed: August 12, 2022
    Publication date: April 20, 2023
    Inventors: JINHO HYUN, HEECHANG YOON, HYOUNG SUB LEE, HYEMIN LEE, WOO YONG SUNG, SEUNGYONG SONG
  • Publication number: 20230094912
    Abstract: An inkjet printing apparatus includes: a stage, which reciprocates in forward and reverse directions opposite to each other and has a target substrate disposed thereon; an inspection device including a film disposed outside the stage and a measurement unit which measures an inspection pattern provided on the film; and a head assembly, which moves along one direction crossing the forward direction and has a plurality of heads which supplies a liquid composition to the target substrate. The head assembly moves in the one direction to overlap the film and sprays the composition onto the film to form an inspection pattern.
    Type: Application
    Filed: August 18, 2022
    Publication date: March 30, 2023
    Inventors: JINHO HYUN, HEECHANG YOON, HYOUNG SUB LEE, HYEMIN LEE
  • Publication number: 20230083430
    Abstract: A display device includes a substrate which includes a base part and a protruding pattern which protrudes from the base part, a pixel electrode which is on the protruding pattern, a pixel defining layer which is d on the pixel electrode and exposes the pixel electrode, a light emitting layer which is on the pixel electrode exposed by the pixel defining layer, a common electrode which is on the light emitting layer, a first inorganic encapsulation layer which is on the common electrode, a second inorganic encapsulation layer which is on the first inorganic encapsulation layer, and an overcoat layer which is on the second inorganic encapsulation layer. The pixel defining layer defines a light emitting area, and the first inorganic encapsulation layer and the second inorganic encapsulation layer are in direct contact with each other in the light emitting area.
    Type: Application
    Filed: May 16, 2022
    Publication date: March 16, 2023
    Inventors: Jin Ho HYUN, Hee Chang YOON, Hyoung Sub LEE, Hye Min LEE, Woo Yong SUNG, Seung Yong SONG
  • Publication number: 20230039703
    Abstract: Disclosed is a display device including a base layer, a circuit layer including a plurality of transistors spaced apart from each other and disposed on a top of the base layer, a plurality of insulating layers disposed on a top of the base layer, and a plurality of contact electrodes electrically connected to the transistors, respectively, a first light emitting unit disposed on a top of the circuit layer, a second light emitting unit, and a lower protrusion disposed between at least one of the transistors and the second lower electrode, wherein at least one of the contact electrodes is disposed to extend to a top surface of the lower protrusion in the circuit layer while following a shape of the lower protrusion to simplify an etching process of an encapsulation layer.
    Type: Application
    Filed: May 2, 2022
    Publication date: February 9, 2023
    Inventors: YEONHWA LEE, HYE JIN GWARK, ARONG KIM, JAEIK KIM, JUNGSUN PARK, HEEMIN PARK, JOONGU LEE, HYOUNG SUB LEE, KYU HWAN HWANG
  • Publication number: 20230013676
    Abstract: A display device includes a bending area at which the display device is bendable; an organic light emitting element disposed on the substrate; an encapsulation layer covering an upper surface and a side surface of the organic light emitting element; and a bending area protection layer covering the bending area of the substrate. The upper surface of the encapsulation layer includes a nano structure defined by nano sized protrusions and depressions of the upper surface, and along the substrate, and the bending area is disposed separated from the encapsulation layer.
    Type: Application
    Filed: September 27, 2022
    Publication date: January 19, 2023
    Inventors: Seung Wook KWON, Woo Yong SUNG, Hyoung Sub LEE
  • Publication number: 20230008148
    Abstract: A display device comprises a substrate; a first electrode on the substrate; a bank layer on the substrate and comprising an opening exposing the first electrode; a spacer on the bank layer and having a first thickness; a protrusion on the bank layer, spaced apart from the spacer, and having a second thickness smaller than the first thickness; and an emissive layer on the first electrode exposed by the bank layer, wherein the protrusion comprises a first protrusion pattern and a second protrusion pattern spaced apart from the first protrusion pattern with a valley hole therebetween.
    Type: Application
    Filed: June 28, 2022
    Publication date: January 12, 2023
    Inventors: Jin Ho HYUN, Hee Chang YOON, Hyoung Sub LEE, Hye Min LEE, Oh June KWON, Woo Yong SUNG
  • Patent number: 11495773
    Abstract: A display device includes a bending area at which the display device is bendable; an organic light emitting element disposed on the substrate; an encapsulation layer covering an upper surface and a side surface of the organic light emitting element; and a bending area protection layer covering the bending area of the substrate. The upper surface of the encapsulation layer includes a nano structure defined by nano sized protrusions and depressions of the upper surface, and along the substrate, and the bending area is disposed separated from the encapsulation layer.
    Type: Grant
    Filed: September 14, 2020
    Date of Patent: November 8, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seung Wook Kwon, Woo Yong Sung, Hyoung Sub Lee
  • Patent number: 11462713
    Abstract: A display device includes: a substrate including a first region, a second region, and a bending region, the bending region connecting the first region and the second region to each other; a display unit disposed on a first surface of the substrate in the first region thereof; in the first region of the substrate, a first passivation layer disposed on a second surface of the substrate which is opposite to the first surface of the substrate; and in the second region of the substrate, a second passivation layer disposed on the second surface of the substrate. Each of the first passivation layer and the second passivation layer includes a photocurable resin which is cured.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: October 4, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seung Wook Kwon, Hyoung Sub Lee, Woo Yong Sung
  • Publication number: 20220123256
    Abstract: A display device includes: a substrate including a display area, the display area including a front area and a corner area disposed at a corner of the display area; a main dam disposed between the front area and the corner area; and a plurality of corner dams disposed in the corner area. The corner area may include a plurality of stripe areas defined by the plurality of corner dams. The plurality of corner dams extend from the main dam and is disposed along an edge of the plurality of stripe areas.
    Type: Application
    Filed: May 18, 2021
    Publication date: April 21, 2022
    Inventors: Jin Ho HYUN, Hyoung Sub LEE, Hye Min LEE, Woo Yong SUNG
  • Publication number: 20220093897
    Abstract: A display device includes: a display panel having a front portion, a first bending portion, a second bending portion, and a corner portion, the display panel including a plurality of first pixels disposed in the front portion and a plurality of second pixels disposed in the corner portion. The display panel includes: a substrate; a first dam surrounding the plurality of first pixels; and a second dam surrounding the plurality of second pixels. The substrate includes a plurality of cutout patterns disposed in the corner portion, the plurality of second pixels and the second dam are disposed in each of the plurality of cutout patterns, and a height of an upper surface of the first dam is higher than a height of an upper surface of the second dam, based on one surface of the substrate.
    Type: Application
    Filed: September 23, 2021
    Publication date: March 24, 2022
    Inventors: Hye Min Lee, Hyoung Sub Lee, Jin Ho Hyun, Woo Yong Sung
  • Publication number: 20200411796
    Abstract: A display device includes a bending area at which the display device is bendable; an organic light emitting element disposed on the substrate; an encapsulation layer covering an upper surface and a side surface of the organic light emitting element; and a bending area protection layer covering the bending area of the substrate. The upper surface of the encapsulation layer includes a nano structure defined by nano sized protrusions and depressions of the upper surface, and along the substrate, and the bending area is disposed separated from the encapsulation layer.
    Type: Application
    Filed: September 14, 2020
    Publication date: December 31, 2020
    Inventors: Seung Wook KWON, Woo Yong SUNG, Hyoung Sub LEE
  • Patent number: 10818873
    Abstract: A display device includes a bending area at which the display device is bendable; an organic light emitting element disposed on the substrate; an encapsulation layer covering an upper surface and a side surface of the organic light emitting element; and a bending area protection layer covering the bending area of the substrate. The upper surface of the encapsulation layer includes a nano structure defined by nano sized protrusions and depressions of the upper surface, and along the substrate, and the bending area is disposed separated from the encapsulation layer.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: October 27, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seung Wook Kwon, Woo Yong Sung, Hyoung Sub Lee
  • Publication number: 20200119305
    Abstract: A display device includes a bending area at which the display device is bendable; an organic light emitting element disposed on the substrate; an encapsulation layer covering an upper surface and a side surface of the organic light emitting element; and a bending area protection layer covering the bending area of the substrate. The upper surface of the encapsulation layer includes a nano structure defined by nano sized protrusions and depressions of the upper surface, and along the substrate, and the bending area is disposed separated from the encapsulation layer.
    Type: Application
    Filed: July 12, 2019
    Publication date: April 16, 2020
    Inventors: Seung Wook KWON, Woo Yong SUNG, Hyoung Sub LEE