Patents by Inventor Yuri Koh

Yuri Koh 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: 10121837
    Abstract: Disclosed is an organic light emitting device, (OLED) comprising a substrate on which a driving transistor is formed, a bank formed on the substrate providing a boundary for a pixel region, a first electrode formed on the substrate and electrically connected with the driving transistor, the first electrode comprising a first and second cross sectional area both oriented in a direction perpendicular to a vertical direction of the substrate, the first area adjacent to the bank, the second area surrounded by the first area, an organic layer formed on the first electrode within the boundary provided by the bank, and a second electrode formed on the organic layer, wherein during operation of the OLED a first electric field between the first area of the first electrode and the second electrode is greater than a second electric field between the second area of the first electrode and the second electrode.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: November 6, 2018
    Assignee: LG Display Co., Ltd.
    Inventors: ARyoung Lee, KiSoub Yang, HwangUn Seo, YuRi Koh, Jihyun Lee
  • Publication number: 20180158888
    Abstract: Disclosed is an organic light emitting device, (OLED) comprising a substrate on which a driving transistor is formed, a bank formed on the substrate providing a boundary for a pixel region, a first electrode formed on the substrate and electrically connected with the driving transistor, the first electrode comprising a first and second cross sectional area both oriented in a direction perpendicular to a vertical direction of the substrate, the first area adjacent to the bank, the second area surrounded by the first area, an organic layer formed on the first electrode within the boundary provided by the bank, and a second electrode formed on the organic layer, wherein during operation of the OLED a first electric field between the first area of the first electrode and the second electrode is greater than a second electric field between the second area of the first electrode and the second electrode.
    Type: Application
    Filed: January 9, 2018
    Publication date: June 7, 2018
    Inventors: ARyoung LEE, KiSoub YANG, HwangUn SEO, YuRi KOH, Jihyun LEE
  • Patent number: 9899459
    Abstract: Disclosed is an organic light emitting device, (OLED) comprising a substrate on which a driving transistor is formed, a bank formed on the substrate providing a boundary for a pixel region, a first electrode formed on the substrate and electrically connected with the driving transistor, the first electrode comprising a first and second cross sectional area both oriented in a direction perpendicular to a vertical direction of the substrate, the first area adjacent to the bank, the second area surrounded by the first area, an organic layer formed on the first electrode within the boundary provided by the bank, and a second electrode formed on the organic layer, wherein during operation of the OLED a first electric field between the first area of the first electrode and the second electrode is greater than a second electric field between the second area of the first electrode and the second electrode.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: February 20, 2018
    Assignee: LG Display Co., Ltd.
    Inventors: ARyoung Lee, KiSoub Yang, HwangUn Seo, YuRi Koh, Jihyun Lee
  • Publication number: 20170033167
    Abstract: Disclosed is an organic light emitting device, (OLED) comprising a substrate on which a driving transistor is formed, a bank formed on the substrate providing a boundary for a pixel region, a first electrode formed on the substrate and electrically connected with the driving transistor, the first electrode comprising a first and second cross sectional area both oriented in a direction perpendicular to a vertical direction of the substrate, the first area adjacent to the bank, the second area surrounded by the first area, an organic layer formed on the first electrode within the boundary provided by the bank, and a second electrode formed on the organic layer, wherein during operation of the OLED a first electric field between the first area of the first electrode and the second electrode is greater than a second electric field between the second area of the first electrode and the second electrode.
    Type: Application
    Filed: October 17, 2016
    Publication date: February 2, 2017
    Inventors: ARyoung Lee, KiSoub Yang, HwangUn Seo, YuRi Koh, Jihyun Lee
  • Patent number: 9502481
    Abstract: Disclosed is an organic light emitting device, (OLED) comprising a substrate on which a driving transistor is formed, a bank formed on the substrate providing a boundary for a pixel region, a first electrode formed on the substrate and electrically connected with the driving transistor, the first electrode comprising a first and second cross sectional area both oriented in a direction perpendicular to a vertical direction of the substrate, the first area adjacent to the bank, the second area surrounded by the first area, an organic layer formed on the first electrode within the boundary provided by the bank, and a second electrode formed on the organic layer, wherein during operation of the OLED a first electric field between the first area of the first electrode and the second electrode is greater than a second electric field between the second area of the first electrode and the second electrode.
    Type: Grant
    Filed: January 12, 2016
    Date of Patent: November 22, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: ARyoung Lee, KiSoub Yang, HwangUn Seo, YuRi Koh, Jihyun Lee
  • Publication number: 20160126301
    Abstract: Disclosed is an organic light emitting device, (OLED) comprising a substrate on which a driving transistor is formed, a bank formed on the substrate providing a boundary for a pixel region, a first electrode formed on the substrate and electrically connected with the driving transistor, the first electrode comprising a first and second cross sectional area both oriented in a direction perpendicular to a vertical direction of the substrate, the first area adjacent to the bank, the second area surrounded by the first area, an organic layer formed on the first electrode within the boundary provided by the bank, and a second electrode formed on the organic layer, wherein during operation of the OLED a first electric field between the first area of the first electrode and the second electrode is greater than a second electric field between the second area of the first electrode and the second electrode.
    Type: Application
    Filed: January 12, 2016
    Publication date: May 5, 2016
    Inventors: ARyoung Lee, KiSoub Yang, HwangUn Seo, YuRi Koh, Jihyun Lee
  • Patent number: 9269753
    Abstract: Disclosed is an organic light emitting device, (OLED) comprising a substrate on which a driving transistor is formed, a bank formed on the substrate providing a boundary for a pixel region, a first electrode formed on the substrate and electrically connected with the driving transistor, the first electrode comprising a first and second cross sectional area both oriented in a direction perpendicular to a vertical direction of the substrate, the first area adjacent to the bank, the second area surrounded by the first area, an organic layer formed on the first electrode within the boundary provided by the bank, and a second electrode formed on the organic layer, wherein during operation of the OLED a first electric field between the first area of the first electrode and the second electrode is greater than a second electric field between the second area of the first electrode and the second electrode.
    Type: Grant
    Filed: August 1, 2014
    Date of Patent: February 23, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: ARyoung Lee, KiSoub Yang, HwangUn Seo, YuRi Koh, Jihyun Lee
  • Publication number: 20150340413
    Abstract: Disclosed is an organic light emitting device, (OLED) comprising a substrate on which a driving transistor is formed, a bank formed on the substrate providing a boundary for a pixel region, a first electrode formed on the substrate and electrically connected with the driving transistor, the first electrode comprising a first and second cross sectional area both oriented in a direction perpendicular to a vertical direction of the substrate, the first area adjacent to the bank, the second area surrounded by the first area, an organic layer formed on the first electrode within the boundary provided by the bank, and a second electrode formed on the organic layer, wherein during operation of the OLED a first electric field between the first area of the first electrode and the second electrode is greater than a second electric field between the second area of the first electrode and the second electrode.
    Type: Application
    Filed: August 1, 2014
    Publication date: November 26, 2015
    Inventors: ARyoung Lee, KiSoub Yang, HwangUn Seo, YuRi Koh, Jihyun Lee
  • Patent number: 8507314
    Abstract: An organic light emitting device comprises a first substrate, a first electrode formed on the first substrate, a hole transporting layer formed on the first electrode, a light emitting layer formed on the hole transporting layer, a second electrode formed on the light emitting layer; and a mixture layer formed between the hole transporting layer and the light emitting layer, where the mixture layer including a hole transporting functioning material, wherein the hole transporting functioning material and the light emitting functioning material have concentration gradient respectively.
    Type: Grant
    Filed: September 14, 2010
    Date of Patent: August 13, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Yuri Koh, Moonky Yee, Woochan Kim
  • Publication number: 20110111542
    Abstract: A method of fabricating an OLED display, includes sequentially forming a TFT array, first electrodes, and a first related layer on a first substrate, respectively forming heat-generating elements on second and third substrates, forming a red organic emission pattern on the second substrate, and forming a green organic emission pattern on the third substrate, aligning and attaching the first and second substrates, applying a voltage to heat-generating elements to transfer the red organic emission pattern to red pixel regions, thereby forming red organic emission layers, aligning and attaching the first and third substrates, applying a voltage to the heat-generating elements to transfer the green organic emission pattern to green pixel regions, thereby forming green organic emission layers, entirely depositing a blue organic emission material on the first substrate, thereby forming a blue organic emission layer, and sequentially forming a second related layer and a second electrode on the first substrate.
    Type: Application
    Filed: October 19, 2010
    Publication date: May 12, 2011
    Inventors: Moonky YEE, Changwook Han, Woochan Kim, Yuri Koh
  • Patent number: 7932113
    Abstract: A method of fabricating an OLED display, includes sequentially forming a TFT array, first electrodes, and a first related layer on a first substrate, respectively forming heat-generating elements on second and third substrates, forming a red organic emission pattern on the second substrate, and forming a green organic emission pattern on the third substrate, aligning and attaching the first and second substrates, applying a voltage to heat-generating elements to transfer the red organic emission pattern to red pixel regions, thereby forming red organic emission layers, aligning and attaching the first and third substrates, applying a voltage to the heat-generating elements to transfer the green organic emission pattern to green pixel regions, thereby forming green organic emission layers, entirely depositing a blue organic emission material on the first substrate, thereby forming a blue organic emission layer, and sequentially forming a second related layer and a second electrode on the first substrate.
    Type: Grant
    Filed: October 19, 2010
    Date of Patent: April 26, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Moonky Yee, Changwook Han, Woochan Kim, Yuri Koh
  • Publication number: 20110068331
    Abstract: An organic light emitting device comprises a first substrate, a first electrode formed on the first substrate, a hole transporting layer formed on the first electrode, a light emitting layer formed on the hole transporting layer, a second electrode formed on the light emitting layer; and a mixture layer formed between the hole transporting layer and the light emitting layer, where the mixture layer including a hole transporting functioning material, wherein the hole transporting functioning material and the light emitting functioning material have concentration gradient respectively.
    Type: Application
    Filed: September 14, 2010
    Publication date: March 24, 2011
    Inventors: Yuri KOH, Moonky Yee, Woochan Kim