Patents by Inventor Joo-Sun Yoon

Joo-Sun Yoon 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).

  • Patent number: 9166199
    Abstract: An organic electroluminescence device comprises a plurality of Pixel Defining Layers (PDLs) formed on a substrate, first electrodes formed in a space that is defined by the substrate and the PDLs, white light emitting layers formed in a space that is defined by the first electrodes and the PDLs, a second electrode formed on the white light emitting layers, first black matrices formed on the second electrode, and a color filter layer located adjacent to the first black matrices and spaced apart from the first black matrices.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: October 20, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jeong Hwan Kim, Joo Sun Yoon
  • Patent number: 9159749
    Abstract: An oxide semiconductor device includes a gate electrode on a substrate, a gate insulation layer on the substrate, the gate insulation layer having a recess structure over the gate electrode, a source electrode on a first portion of the gate insulation layer, a drain electrode on a second portion of the gate insulation layer, and an active pattern on the source electrode and the drain electrode, the active pattern filling the recess structure.
    Type: Grant
    Filed: November 4, 2014
    Date of Patent: October 13, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seong-Min Wang, Ki-Wan Ahn, Joo-Sun Yoon, Ki-Hong Kim
  • Publication number: 20150279908
    Abstract: Provided is a display device, including: a substrate; signal lines including a gate line, a data line, and a driving voltage line that collectively define an outer boundary of a pixel area; a transistor connected to the signal line; a first electrode extending across the pixel area and formed on the signal line and the transistor, and connected to the transistor, the first electrode having a first portion overlying only the signal line and the transistor, and a second portion comprising all of the first electrode not included in the first portion; a pixel defining layer formed on only the first portion of the first electrode; an organic emission layer formed on substantially the entire second portion but not on the first portion; and a second electrode formed on the pixel defining layer and the organic emission layer.
    Type: Application
    Filed: May 27, 2015
    Publication date: October 1, 2015
    Inventors: Joung-Keun PARK, Ki Wan AHN, Joo Sun YOON
  • Patent number: 9105866
    Abstract: An organic light emitting-diode (OLED) display is disclosed. In one aspect, the OLED includes a first substrate, a first electrode provided on the first substrate, a pixel defining layer provided on the first electrode and including a first opening exposing at least a portion of the first electrode, and an organic emission layer provided on the first electrode corresponding to the first opening. The OLED display also includes a second electrode provided on the pixel defining layer and the organic emission layer, a second substrate provided on the second electrode, and a first auxiliary electrode provided below the second substrate facing the second electrode and welded to a portion of the second electrode corresponding to the pixel defining layer.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: August 11, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventor: Joo-Sun Yoon
  • Patent number: 9099680
    Abstract: A display device and method of manufacturing the same, the display device having a substrate, a plurality of scattering patterns which are located on the substrate and comprise crystallized metal oxide, a first electrode which is located on the scattering patterns, an organic light-emitting layer which is located on the first electrode, and a second electrode which is located on the organic light-emitting layer.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: August 4, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ki Wan Ahn, Joung Keun Park, Hee Jun Yoo, Joo Sun Yoon, Yong Jae Jang, Jae Hyuk Jang
  • Patent number: 9059124
    Abstract: Provided is a display device, including: a substrate; signal lines including a gate line, a data line, and a driving voltage line that collectively define an outer boundary of a pixel area; a transistor connected to the signal line; a first electrode extending across the pixel area and formed on the signal line and the transistor, and connected to the transistor, the first electrode having a first portion overlying only the signal line and the transistor, and a second portion comprising all of the first electrode not included in the first portion; a pixel defining layer formed on only the first portion of the first electrode; an organic emission layer formed on substantially the entire second portion but not on the first portion; and a second electrode formed on the pixel defining layer and the organic emission layer.
    Type: Grant
    Filed: June 13, 2014
    Date of Patent: June 16, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Joung-Keun Park, Ki Wan Ahn, Joo Sun Yoon
  • Publication number: 20150132871
    Abstract: An oxide semiconductor device includes a gate electrode on a substrate, a gate insulation layer on the substrate, the gate insulation layer having a recess structure over the gate electrode, a source electrode on a first portion of the gate insulation layer, a drain electrode on a second portion of the gate insulation layer, and an active pattern on the source electrode and the drain electrode, the active pattern filling the recess structure.
    Type: Application
    Filed: November 4, 2014
    Publication date: May 14, 2015
    Inventors: Seong-Min Wang, Ki-Wan Ahn, Joo-Sun Yoon, Ki-Hong Kim
  • Patent number: 8988640
    Abstract: The embodiment relates to a display device having an improved aperture ratio and capacitance, and a fabrication method of the display device, in which the display device may include a thin film transistor, which includes: an active layer, a gate electrode, a source electrode electrically connected to the active layer, a drain electrode electrically connected to the active layer, and a gate insulating material formed between the active layer and the gate electrode, where the gate insulating material includes a first layer, a second layer and a third layer, where the second layer has a thickness between about 0.1 to about 1.5 times a thickness of the first layer, and where the third layer has a thickness between about 2 to about 12 times the thickness of the second layer.
    Type: Grant
    Filed: February 2, 2011
    Date of Patent: March 24, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun-Young Kim, Joo-Sun Yoon, Jin-Yup Kim
  • Patent number: 8975811
    Abstract: A light emitting display device includes: a substrate; a first electrode disposed on the substrate in each pixel area; an insulating film disposed on the substrate, where a first opening, which exposes the first electrode, is defined in the insulating film; a blocking film disposed on a side surface of the insulating film, which defines the first opening; a light emitting layer disposed in the first opening and on the first electrode, where the light emitting layer is in contact with the blocking film; and a second electrode disposed on the light emitting layer.
    Type: Grant
    Filed: October 21, 2013
    Date of Patent: March 10, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventor: Joo Sun Yoon
  • Publication number: 20150060783
    Abstract: Disclosed is an organic light-emitting display apparatus. The organic light-emitting display apparatus includes a pixel electrode that is connected to at least one thin film transistor, an opposite electrode that is disposed to face the pixel electrode, an organic light emitting layer that is disposed between the pixel electrode and the opposite electrode, and a pad electrode that includes a first pad layer, a second pad layer disposed on the first pad layer, and a third pad layer which is disposed between the first pad layer and the second pad layer and contains a material having a reducibility that is lower than a reducibility of a material contained in the second pad layer.
    Type: Application
    Filed: April 2, 2014
    Publication date: March 5, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventor: Joo-Sun Yoon
  • Publication number: 20150041765
    Abstract: A display device and method of manufacturing the same, the display device having a substrate, a plurality of scattering patterns which are located on the substrate and comprise crystallized metal oxide, a first electrode which is located on the scattering patterns, an organic light-emitting layer which is located on the first electrode, and a second electrode which is located on the organic light-emitting layer.
    Type: Application
    Filed: November 25, 2013
    Publication date: February 12, 2015
    Inventors: Ki Wan Ahn, Joung Keun Park, Hee Jun Yoo, Joo Sun Yoon, Yong Jae Jang, Jae Hyuk Jang
  • Publication number: 20150034913
    Abstract: An organic light emitting-diode (OLED) display is disclosed. In one aspect, the OLED includes a first substrate, a first electrode provided on the first substrate, a pixel defining layer provided on the first electrode and including a first opening exposing at least a portion of the first electrode, and an organic emission layer provided on the first electrode corresponding to the first opening. The OLED display also includes a second electrode provided on the pixel defining layer and the organic emission layer, a second substrate provided on the second electrode, and a first auxiliary electrode provided below the second substrate facing the second electrode and welded to a portion of the second electrode corresponding to the pixel defining layer.
    Type: Application
    Filed: January 24, 2014
    Publication date: February 5, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventor: Joo-Sun Yoon
  • Patent number: 8933459
    Abstract: Embodiments are directed to an organic light emitting display device, including a substrate, and a plurality of pixels, each pixel including a protrusion pattern and a trench area formed in the substrate, an organic light emitting device disposed on the substrate, a capacitor, the capacitor including a first capacitor electrode and a second capacitor electrode, a first transistor, the first transistor being coupled to a gate line extended in a row direction, a data line extended in a column direction crossing the row direction, and the first capacitor electrode, and a second transistor, the second transistor being coupled to the first capacitor electrode, a voltage line extended in the column direction, and the organic light emitting device, wherein the second capacitor electrode is branched from the voltage line, and the gate line and the first capacitor electrode are formed on and overlap the protrusion pattern.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: January 13, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventor: Joo Sun Yoon
  • Publication number: 20140367664
    Abstract: Provided is a display device, including: a substrate; signal lines including a gate line, a data line, and a driving voltage line that collectively define an outer boundary of a pixel area; a transistor connected to the signal line; a first electrode extending across the pixel area and formed on the signal line and the transistor, and connected to the transistor, the first electrode having a first portion overlying only the signal line and the transistor, and a second portion comprising all of the first electrode not included in the first portion; a pixel defining layer formed on only the first portion of the first electrode; an organic emission layer formed on substantially the entire second portion but not on the first portion; and a second electrode formed on the pixel defining layer and the organic emission layer.
    Type: Application
    Filed: June 13, 2014
    Publication date: December 18, 2014
    Inventors: Joung-Keun PARK, Ki Wan Ahn, Joo Sun YOON
  • Publication number: 20140354139
    Abstract: A light emitting display device includes: a substrate; a first electrode disposed on the substrate in each pixel area; an insulating film disposed on the substrate, where a first opening, which exposes the first electrode, is defined in the insulating film; a blocking film disposed on a side surface of the insulating film, which defines the first opening; a light emitting layer disposed in the first opening and on the first electrode, where the light emitting layer is in contact with the blocking film; and a second electrode disposed on the light emitting layer.
    Type: Application
    Filed: October 21, 2013
    Publication date: December 4, 2014
    Applicant: Samsung Display Co. Ltd.
    Inventor: Joo Sun YOON
  • Patent number: 8841666
    Abstract: In an aspect, a display device including: a substrate; a thin film transistor formed on the substrate, and comprising an active layer formed of an oxide semiconductor; a passivation layer formed on the thin film transistor; and a hydrogen blocking layer positioned between the active layer and the passivation layer is provided.
    Type: Grant
    Filed: October 16, 2013
    Date of Patent: September 23, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jeong-Hwan Kim, Kyung-Hye Kim, Joo-Sun Yoon
  • Patent number: 8749725
    Abstract: A flat panel display apparatus including a gate electrode on a substrate, a first insulating layer and a semiconductor layer sequentially stacked on the gate electrode and including a transparent conductive oxide, a capacitor first electrode extending on a plane on which the gate electrode extends, and a capacitor second electrode extending on a plane on which the semiconductor layer extends and including a material of the semiconductor layer, wherein the first insulating layer is between the capacitor second electrode and the semiconductor layer, source and drain electrodes that are separated by a second insulating layer and are connected to the semiconductor layer and the capacitor second electrode, a third insulating layer covering the source and drain electrodes, and a pixel electrode electrically connected to the source or drain electrode on the third insulating layer and being electrically connected to one of the source electrode and/or the drain electrode.
    Type: Grant
    Filed: April 6, 2011
    Date of Patent: June 10, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Joo-Sun Yoon, Seong-Min Wang
  • Publication number: 20140145159
    Abstract: An organic electroluminescence device comprises a plurality of Pixel Defining Layers (PDLs) formed on a substrate, first electrodes formed in a space that is defined by the substrate and the PDLs, white light emitting layers formed in a space that is defined by the first electrodes and the PDLs, a second electrode formed on the white light emitting layers, first black matrices formed on the second electrode, and a color filter layer located adjacent to the first black matrices and spaced apart from the first black matrices.
    Type: Application
    Filed: September 5, 2013
    Publication date: May 29, 2014
    Inventors: Jeong Hwan KIM, Joo Sun YOON
  • Publication number: 20140145179
    Abstract: A method of manufacturing a thin film transistor (TFT), including forming an oxide semiconductor pattern including a first region, a second region and a third region on a substrate, directly plasma processing the first region and the second region of the oxide semiconductor pattern, forming an insulating layer on the substrate to cover the oxide semiconductor pattern, forming a gate electrode on the insulating layer to overlap the third region, and forming a source electrode and a drain electrode that are insulated from the gate electrode and that contact the first region, the second region being disposed between the first region and the third region.
    Type: Application
    Filed: August 6, 2013
    Publication date: May 29, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Joo-Sun Yoon, Ki-Wan Ahn, Joung-Keun Park
  • Publication number: 20140139772
    Abstract: In an aspect, a display device including: a substrate; a thin film transistor formed on the substrate, and comprising an active layer formed of an oxide semiconductor; a passivation layer formed on the thin film transistor; and a hydrogen blocking layer positioned between the active layer and the passivation layer is provided.
    Type: Application
    Filed: October 16, 2013
    Publication date: May 22, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Jeong-Hwan Kim, Kyung-Hye Kim, Joo-Sun Yoon