Patents by Inventor Keumkyu Min

Keumkyu Min 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: 11133490
    Abstract: A light emitting display apparatus is disclosed, which can improve visual characteristic of a black image in accordance with reduction of diffuse reflectance while improving light emission efficiency of light emitted from a light emitting diode. The light emitting display apparatus comprises a substrate including a plurality of pixel areas, a light emission pattern arranged in each of the plurality of pixel areas, a light emitting device layer arranged over the light emission pattern, and a selective wavelength absorbing member overlapped with at least one of the plurality of pixel areas, wherein the selective wavelength absorbing member may reduce transmittance of light of a long wavelength, which is incident.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: September 28, 2021
    Assignee: LG Display Co., Ltd.
    Inventors: Soyoung Jo, Sookang Kim, KeumKyu Min, HeeJung Yang, Mingeun Choi
  • Publication number: 20200212275
    Abstract: A light emitting display apparatus is disclosed, which can improve light extraction efficiency of light emitted from a light emitting diode. The light emitting display apparatus comprises a substrate including a plurality of pixel areas having an opening area, an uneven portion arranged in the opening area, and a light emitting diode arranged over the uneven portion, the uneven portion may have roughness average value of about 0.19 to about 0.29 for a unit size.
    Type: Application
    Filed: December 16, 2019
    Publication date: July 2, 2020
    Inventors: Mingeun CHOI, KeumKyu MIN, Soyoung JO, Yonghoon CHOI
  • Publication number: 20200185655
    Abstract: A light emitting display apparatus is disclosed, which can improve visual characteristic of a black image in accordance with reduction of diffuse reflectance while improving light emission efficiency of light emitted from a light emitting diode. The light emitting display apparatus comprises a substrate including a plurality of pixel areas, a light emission pattern arranged in each of the plurality of pixel areas, a light emitting device layer arranged over the light emission pattern, and a selective wavelength absorbing member overlapped with at least one of the plurality of pixel areas, wherein the selective wavelength absorbing member may reduce transmittance of light of a long wavelength, which is incident.
    Type: Application
    Filed: December 5, 2019
    Publication date: June 11, 2020
    Inventors: Soyoung JO, Sookang KIM, KeumKyu MIN, HeeJung YANG, Mingeun CHOI
  • Patent number: 8933454
    Abstract: An array substrate for a liquid crystal display and a method for manufacturing the same are disclosed. The array substrate for a liquid crystal display includes a source electrode and a drain electrode and an organic insulating film positioned on the source electrode and the drain electrode. The organic insulating layer includes a first contact hole exposing the drain electrode, and having a stepped level difference formed on the sloping surface of the first contact hole.
    Type: Grant
    Filed: May 10, 2013
    Date of Patent: January 13, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Jinpil Kim, Kiyoung Jung, Keumkyu Min, Sangsu Jang
  • Publication number: 20130313556
    Abstract: An array substrate for a liquid crystal display and a method for manufacturing the same are disclosed. The array substrate for a liquid crystal display includes a source electrode and a drain electrode and an organic insulating film positioned on the source electrode and the drain electrode. The organic insulating layer includes a first contact hole exposing the drain electrode, and having a stepped level difference formed on the sloping surface of the first contact hole.
    Type: Application
    Filed: May 10, 2013
    Publication date: November 28, 2013
    Inventors: Jinpil Kim, Kiyoung Jung, Keumkyu Min, Sangsu Jang