Patents by Inventor Gwang-Geun Lee

Gwang-Geun 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: 20250089418
    Abstract: A display device and a method of manufacturing a display device are disclosed. A display device includes a planarization layer including a first planarization part on a substrate, and a second planarization part and a third planarization part on the first planarization part, a first pad electrode on the second planarization part, and a second pad electrode on the third planarization part, an organic pattern layer on the first pad electrode and the second pad electrode, a light emitting element on the organic pattern layer, a partition wall, a reflective layer on a side of the partition wall and the first planarization part, a first auxiliary connection electrode connecting the second semiconductor layer and the first pad electrode, and a second auxiliary connection electrode connecting the first semiconductor layer and the second pad electrode, and the planarization layer has an undercut shape.
    Type: Application
    Filed: August 27, 2024
    Publication date: March 13, 2025
    Inventors: Ki Chang EOM, Gwang Geun LEE, Ki Seong SEO, Yu Jin LEE, Jung An LEE
  • Publication number: 20250079411
    Abstract: A display device includes a planarization layer including a first planarization unit on a substrate and a second planarization unit on the first planarization unit, a pixel electrode on the second planarization unit, an organic pattern layer on the pixel electrode, a light emitting element on the organic pattern layer and having a downwardly convex recess on a top surface thereof, a first partition wall on one surface of the first planarization unit and forming a space around the light emitting element, a via layer in the space around the light emitting element, a first reflective layer around a side of the first partition wall in the space around the light emitting element, on the first planarization unit, and around a side of the light emitting element, a side of the organic pattern layer, and a side of the pixel electrode.
    Type: Application
    Filed: August 20, 2024
    Publication date: March 6, 2025
    Inventors: Yu Jin LEE, Gwang Geun LEE, Ki Seong SEO, Ki Chang EOM, Jung An LEE
  • Publication number: 20250081681
    Abstract: A display device includes a pixel electrode on a substrate, a bank layer on the substrate and the pixel electrode and dividing a light emitting area and a light non-emitting area, light emitting elements on the pixel electrode and including a first semiconductor layer, a second semiconductor layer, and an active layer between the first and second semiconductor layers, a first via layer on the pixel electrode and around sides of the light emitting elements, a common electrode on the first via layer, a side of a light emitting element protruding from the first via layer, and a top surface of the light emitting element, a first insulating layer on the common electrode, a partition wall unit on the first insulating layer and overlapping the bank layer, a second insulating layer on the partition wall unit, and a reflective layer around a side of the partition wall unit.
    Type: Application
    Filed: August 22, 2024
    Publication date: March 6, 2025
    Inventors: Ki Seong SEO, Min Chul SHIN, Ki Chang EOM, So Yeon YOON, Gwang Geun LEE, Yu Jin LEE, Jung An LEE
  • Patent number: 12225790
    Abstract: A display device includes: a substrate; a semiconductor layer; a gate electrode overlapping the semiconductor layer; a common voltage line disposed on a same layer as the gate electrode; a common voltage line anti-oxidation layer disposed on the common voltage line; an interlayer insulating layer; source and drain electrodes disposed on the interlayer insulating layer; and a common voltage applying electrode disposed on a same layer as the source electrode and the drain electrode. The common voltage applying electrode is connected to the common voltage line through a first contact hole formed in the interlayer insulating layer, the common voltage line anti-oxidation layer includes an opening overlapping the common voltage line, the interlayer insulating layer is disposed in the opening, a width of the opening is smaller than a width of the common voltage line, and the first contact hole is disposed in the opening in a plan view.
    Type: Grant
    Filed: September 16, 2022
    Date of Patent: February 11, 2025
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Chun Gi You, Gwang Geun Lee
  • Publication number: 20240429219
    Abstract: A tiled display device includes a display device. The display device including a substrate, a plurality of transistors on one surface of the substrate, a plurality of light emitting elements on the plurality of transistors, a plurality of bottom wirings on a rear surface of the substrate, and a first selective reflective film between the substrate and the plurality of bottom wirings. The first selective reflective film includes M pairs of first layers and second layers, where M is an integer greater than or equal to 2. A refractive index of the first layer is higher than a refractive index of the second layer.
    Type: Application
    Filed: May 7, 2024
    Publication date: December 26, 2024
    Inventors: Kyung Rock SON, Hui Won YANG, Gwang Geun LEE
  • Publication number: 20240421252
    Abstract: A display device includes: a substrate; a connection electrode on the substrate; a light emitting element on the connection electrode and including a first semiconductor layer, an active layer, and a second semiconductor layer sequentially arranged in a third direction; and an insulating layer covering the connection electrode and the light emitting element. The insulating layer has openings spaced apart from each other and exposing the second semiconductor layer of the light emitting element, and the second semiconductor layer has a plurality of grooves corresponding to the openings in the insulating layer.
    Type: Application
    Filed: April 11, 2024
    Publication date: December 19, 2024
    Inventors: Kyung Rock SON, Gwang Geun LEE, Jung An LEE
  • Publication number: 20240274646
    Abstract: Provided are display device and tiled display device including a plurality of display devices. A display device includes a substrate, a first electrode above one surface of the substrate, a contact electrode above the first electrode, and contacting the first electrode, a buffer layer above the contact electrode, an active layer of a thin film transistor above the buffer layer, a gate-insulating layer above the active layer, a gate electrode of the thin film transistor above the gate-insulating layer, and a light-emitting element above the first electrode, and in an element contact hole penetrating the contact electrode, the buffer layer, and the gate-insulating layer.
    Type: Application
    Filed: October 13, 2023
    Publication date: August 15, 2024
    Inventors: Jung An LEE, Hui Won YANG, Kyung Rock SON, Gwang Geun LEE
  • Publication number: 20230206788
    Abstract: A display device in accordance with an embodiment may include: a base layer including a first surface and a second surface that is opposite to the first surface; a first insulating layer disposed on the second surface; a planarization layer disposed between the second surface and the first insulating layer; a rear line disposed on the first insulating layer; and a rear pad electrode disposed on the rear line. The planarization layer may include organic material.
    Type: Application
    Filed: July 22, 2022
    Publication date: June 29, 2023
    Inventors: Hui Won YANG, Dong Hwan SHIM, Ji Hun EO, Tae Jong EOM, Gwang Geun LEE
  • Publication number: 20230073879
    Abstract: A display device includes: a substrate; a semiconductor layer; a gate electrode overlapping the semiconductor layer; a common voltage line disposed on a same layer as the gate electrode; a common voltage line anti-oxidation layer disposed on the common voltage line; an interlayer insulating layer; source and drain electrodes disposed on the interlayer insulating layer; and a common voltage applying electrode disposed on a same layer as the source electrode and the drain electrode. The common voltage applying electrode is connected to the common voltage line through a first contact hole formed in the interlayer insulating layer, the common voltage line anti-oxidation layer includes an opening overlapping the common voltage line, the interlayer insulating layer is disposed in the opening, a width of the opening is smaller than a width of the common voltage line, and the first contact hole is disposed in the opening in a plan view.
    Type: Application
    Filed: September 16, 2022
    Publication date: March 9, 2023
    Inventors: Chun Gi YOU, Gwang Geun Lee
  • Publication number: 20230057960
    Abstract: A tiled display device may include a first panel including a first display element layer; a second panel including a second display element layer; and a shared layer including a color conversion part. The shared layer may include a first portion and a second portion. The first portion may overlap the first panel in a plan view. The second portion may overlap the second panel in a plan view. The color conversion part may change a wavelength of light provided from the first panel and the second panel.
    Type: Application
    Filed: July 21, 2022
    Publication date: February 23, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: Jong Moo HUH, Jin Wook JEONG, Sun PARK, Ki Chang EOM, Gwang Geun LEE
  • Patent number: 11450728
    Abstract: A display device includes: a substrate; a semiconductor layer; a gate electrode overlapping the semiconductor layer; a common voltage line disposed on a same layer as the gate electrode; a common voltage line anti-oxidation layer disposed on the common voltage line; an interlayer insulating layer; source and drain electrodes disposed on the interlayer insulating layer; and a common voltage applying electrode disposed on a same layer as the source electrode and the drain electrode. The common voltage applying electrode is connected to the common voltage line through a first contact hole formed in the interlayer insulating layer, the common voltage line anti-oxidation layer includes an opening overlapping the common voltage line, the interlayer insulating layer is disposed in the opening, a width of the opening is smaller than a width of the common voltage line, and the first contact hole is disposed in the opening in a plan view.
    Type: Grant
    Filed: September 21, 2020
    Date of Patent: September 20, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chun Gi You, Gwang Geun Lee
  • Patent number: 11004922
    Abstract: An organic light emitting diode display device comprises a substrate which includes a plurality of pixel regions each having a sub-pixel region and a transparent region. In each pixel region, an active layer is disposed in the sub-pixel region. A gate electrode overlaps the active layer. A first electrode is disposed on the active layer, and contacts the active layer. A second electrode is spaced apart from the first electrode, and contacts the active layer. A first lower electrode having a first thickness is disposed in the sub-pixel region and connected to the second electrode. A second lower electrode is disposed in the transparent region on the substrate, located at a same level as the gate electrode. The second lower electrode has a second thickness that is less than the first thickness, and is transparent.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: May 11, 2021
    Inventors: Chun-Gi You, Gwang-Geun Lee
  • Publication number: 20210013292
    Abstract: A display device includes: a substrate; a semiconductor layer; a gate electrode overlapping the semiconductor layer; a common voltage line disposed on a same layer as the gate electrode; a common voltage line anti-oxidation layer disposed on the common voltage line; an interlayer insulating layer; source and drain electrodes disposed on the interlayer insulating layer; and a common voltage applying electrode disposed on a same layer as the source electrode and the drain electrode. The common voltage applying electrode is connected to the common voltage line through a first contact hole formed in the interlayer insulating layer, the common voltage line anti-oxidation layer includes an opening overlapping the common voltage line, the interlayer insulating layer is disposed in the opening, a width of the opening is smaller than a width of the common voltage line, and the first contact hole is disposed in the opening in a plan view.
    Type: Application
    Filed: September 21, 2020
    Publication date: January 14, 2021
    Inventors: Chun Gi YOU, Gwang Geun LEE
  • Patent number: 10811487
    Abstract: An organic light emitting diode display comprises a substrate including a display area in which a pixel is disposed and a peripheral area surrounding the display area, a driving semiconductor layer disposed in the display area on the substrate, a driving gate electrode disposed in the display area on the driving semiconductor layer, a common voltage line disposed in the peripheral area on the substrate and disposed on a same layer as the driving gate electrode, a gate electrode anti-oxidation layer disposed on the driving gate electrode, a common voltage line anti-oxidation layer disposed on the common voltage line, an interlayer insulating layer disposed on the driving semiconductor layer, the driving gate electrode, the common voltage line, the gate electrode anti-oxidation layer, and the common voltage line anti-oxidation layer.
    Type: Grant
    Filed: April 1, 2019
    Date of Patent: October 20, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chun Gi You, Gwang Geun Lee
  • Publication number: 20190229179
    Abstract: An organic light emitting diode display comprises a substrate including a display area in which a pixel is disposed and a peripheral area surrounding the display area, a driving semiconductor layer disposed in the display area on the substrate, a driving gate electrode disposed in the display area on the driving semiconductor layer, a common voltage line disposed in the peripheral area on the substrate and disposed on a same layer as the driving gate electrode, a gate electrode anti-oxidation layer disposed on the driving gate electrode, a common voltage line anti-oxidation layer disposed on the common voltage line, an interlayer insulating layer disposed on the driving semiconductor layer, the driving gate electrode, the common voltage line, the gate electrode anti-oxidation layer, and the common voltage line anti-oxidation layer.
    Type: Application
    Filed: April 1, 2019
    Publication date: July 25, 2019
    Inventors: Chun Gi YOU, Gwang Geun LEE
  • Patent number: 10276644
    Abstract: An organic light emitting diode display comprises a substrate including a display area in which a pixel is disposed and a peripheral area surrounding the display area, a driving semiconductor layer disposed in the display area on the substrate, a driving gate electrode disposed in the display area on the driving semiconductor layer, a common voltage line disposed in the peripheral area on the substrate and disposed on a same layer as the driving gate electrode, a gate electrode anti-oxidation layer disposed on the driving gate electrode, a common voltage line anti-oxidation layer disposed on the common voltage line, an interlayer insulating layer disposed on the driving semiconductor layer, the driving gate electrode, the common voltage line, the gate electrode anti-oxidation layer, and the common voltage line anti-oxidation layer.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: April 30, 2019
    Assignee: Samsung Display Co., Ltd
    Inventors: Chun Gi You, Gwang Geun Lee
  • Patent number: 9947734
    Abstract: A display device may include a substrate, a first light emitting structure, a second light emitting structure, and a support structure. The first light emitting structure may include an electrode and a light emitting layer. A face of the electrode may directly contact the light emitting layer and may overlap the substrate. The support structure may be positioned between the first light emitting structure and the second light emitting structure, may be spaced from each of the first light emitting structure and the second light emitting structure, may overlap a transparent portion of the substrate, and may not include or directly contact any light emitting layer. A height of the support structure relative to the substrate may be greater than at least one of a height of the face of the electrode relative to the substrate and a height of the light emitting layer relative to the substrate.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: April 17, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chun-Gi You, Gwang-Geun Lee
  • Patent number: 9893134
    Abstract: An organic light-emitting diode (OLED) display is disclosed. In one aspect, the OLED display includes a substrate including a display area configured to display an image and a transmission area positioned on a periphery of the display area, a first insulating layer positioned in the display area and the transmission area and a thin film transistor positioned in the display area and formed on the first insulating layer. The OLED display also includes a second insulating layer positioned in the display area and the transmission area and covering the thin film transistor and an organic light-emitting element positioned in the display area and formed on the second insulating layer. The second insulating layer has a first transmission hole exposing a portion of the first insulating layer on the transmission area, and a spacer is positioned on the first insulating layer in the transmission hole.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: February 13, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chun Gi You, Gwang Geun Lee
  • Publication number: 20170207285
    Abstract: An organic light emitting diode display device comprises a substrate which includes a plurality of pixel regions each having a sub-pixel region and a transparent region. In each pixel region, an active layer is disposed in the sub-pixel region. A gate electrode overlaps the active layer. A first electrode is disposed on the active layer, and contacts the active layer. A second electrode is spaced apart from the first electrode, and contacts the active layer. A first lower electrode having a first thickness is disposed in the sub-pixel region and connected to the second electrode. A second lower electrode is disposed in the transparent region on the substrate, located at a same level as the gate electrode. The second lower electrode has a second thickness that is less than the first thickness, and is transparent.
    Type: Application
    Filed: January 20, 2017
    Publication date: July 20, 2017
    Inventors: Chun-Gi YOU, Gwang-Geun LEE
  • Publication number: 20170186827
    Abstract: A display device may include a substrate, a first light emitting structure, a second light emitting structure, and a support structure. The first light emitting structure may include an electrode and a light emitting layer. A face of the electrode may directly contact the light emitting layer and may overlap the substrate. The support structure may be positioned between the first light emitting structure and the second light emitting structure, may be spaced from each of the first light emitting structure and the second light emitting structure, may overlap a transparent portion of the substrate, and may not include or directly contact any light emitting layer. A height of the support structure relative to the substrate may be greater than at least one of a height of the face of the electrode relative to the substrate and a height of the light emitting layer relative to the substrate.
    Type: Application
    Filed: December 14, 2016
    Publication date: June 29, 2017
    Inventors: Chun-Gi YOU, Gwang-Geun LEE