Patents by Inventor Joung-Keun Park

Joung-Keun 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: 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
  • Patent number: 8952366
    Abstract: An organic electroluminescent display includes a first substrate, a pixel, a gate line, a data line, a switching transistor, a power signal line, a driving transistor, and a storage capacitor. The storage capacitor includes first, second, and third electrodes. The first electrode is on the first substrate, and the second electrode includes the same material as the gate line. The second electrode is on the first electrode and insulated from the first electrode. The third electrode is insulated from and on the second electrode, and the third electrode is insulated from the first electrode.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: February 10, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventor: Joung Keun Park
  • 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
  • Patent number: 8877534
    Abstract: A display device includes a substrate; a gate wire including a gate electrode and a first capacitor electrode formed on the substrate; a gate insulating layer formed on the gate wire; a semiconductor layer pattern formed on the gate insulating layer, and including an active region overlapping at least a part of the gate electrode and a capacitor region overlapping at least a part of the first capacitor electrode; an etching preventing layer formed on a part of the active region of the semiconductor layer pattern; and a data wire including a source electrode and a drain electrode formed over the active region of the semiconductor layer from over the etching preventing layer, and separated with the etching preventing layer therebetween, and a second capacitor electrode formed on the capacitor region of the semiconductor layer.
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: November 4, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Joung-Keun Park, Jae-Hyuk Jang
  • Publication number: 20140256076
    Abstract: A display device includes a substrate; a gate wire including a gate electrode and a first capacitor electrode formed on the substrate; a gate insulating layer formed on the gate wire; a semiconductor layer pattern formed on the gate insulating layer, and including an active region overlapping at least a part of the gate electrode and a capacitor region overlapping at least a part of the first capacitor electrode; an etching preventing layer formed on a part of the active region of the semiconductor layer pattern; and a data wire including a source electrode and a drain electrode formed over the active region of the semiconductor layer from over the etching preventing layer, and separated with the etching preventing layer therebetween, and a second capacitor electrode formed on the capacitor region of the semiconductor layer.
    Type: Application
    Filed: May 19, 2014
    Publication date: September 11, 2014
    Inventors: Joung-Keun Park, Jae-Hyuk Jang
  • Patent number: 8772775
    Abstract: A display device includes a substrate; a gate wire including a gate electrode and a first capacitor electrode formed on the substrate; a gate insulating layer formed on the gate wire; a semiconductor layer pattern formed on the gate insulating layer, and including an active region overlapping at least a part of the gate electrode and a capacitor region overlapping at least a part of the first capacitor electrode; an etching preventing layer formed on a part of the active region of the semiconductor layer pattern; and a data wire including a source electrode and a drain electrode formed over the active region of the semiconductor layer from over the etching preventing layer, and separated with the etching preventing layer therebetween, and a second capacitor electrode formed on the capacitor region of the semiconductor layer.
    Type: Grant
    Filed: April 22, 2011
    Date of Patent: July 8, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Joung-Keun Park, Jae-Hyuk Jang
  • Publication number: 20140158995
    Abstract: An organic electroluminescent display includes a first substrate, a pixel, a gate line, a data line, a switching transistor, a power signal line, a driving transistor, and a storage capacitor. The storage capacitor includes first, second, and third electrodes. The first electrode is on the first substrate, and the second electrode includes the same material as the gate line. The second electrode is on the first electrode and insulated from the first electrode. The third electrode is insulated from and on the second electrode, and the third electrode is insulated from the first electrode.
    Type: Application
    Filed: March 15, 2013
    Publication date: June 12, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventor: Joung Keun PARK
  • 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
  • Patent number: 8461633
    Abstract: A thin film transistor includes a substrate; a gate electrode on the substrate; a gate insulating layer covering the gate electrode; a semiconductor layer corresponding to the gate electrode on the gate insulating layer; a protective layer covering the semiconductor layer and the gate insulating layer and having a source contact hole and a drain contact hole exposing a portion of the semiconductor layer; and a source electrode and a drain electrode on the protective layer and coupled to the semiconductor layer through the source contact hole and the drain contact hole, respectively, wherein the semiconductor layer has a source offset groove at a portion corresponding to the source contact hole of the protective layer.
    Type: Grant
    Filed: March 21, 2011
    Date of Patent: June 11, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jeong-Hwan Kim, Joung-Keun Park, Jae-Hyuk Jang
  • Publication number: 20120097947
    Abstract: A thin film transistor includes a substrate; a gate electrode on the substrate; a gate insulating layer covering the gate electrode; a semiconductor layer corresponding to the gate electrode on the gate insulating layer; a protective layer covering the semiconductor layer and the gate insulating layer and having a source contact hole and a drain contact hole exposing a portion of the semiconductor layer; and a source electrode and a drain electrode on the protective layer and coupled to the semiconductor layer through the source contact hole and the drain contact hole, respectively, wherein the semiconductor layer has a source offset groove at a portion corresponding to the source contact hole of the protective layer.
    Type: Application
    Filed: March 21, 2011
    Publication date: April 26, 2012
    Inventors: Jeong-Hwan Kim, Joung-Keun Park, Jae-Hyuk Jang
  • Publication number: 20120091460
    Abstract: A display device includes a substrate; a gate wire including a gate electrode and a first capacitor electrode formed on the substrate; a gate insulating layer formed on the gate wire; a semiconductor layer pattern formed on the gate insulating layer, and including an active region overlapping at least a part of the gate electrode and a capacitor region overlapping at least a part of the first capacitor electrode; an etching preventing layer formed on a part of the active region of the semiconductor layer pattern; and a data wire including a source electrode and a drain electrode formed over the active region of the semiconductor layer from over the etching preventing layer, and separated with the etching preventing layer therebetween, and a second capacitor electrode formed on the capacitor region of the semiconductor layer.
    Type: Application
    Filed: April 22, 2011
    Publication date: April 19, 2012
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Joung-Keun Park, Jae-Hyuk Jang