Patents by Inventor Jae-Kwon HWANG

Jae-Kwon HWANG 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: 10756309
    Abstract: A method of manufacturing a light-emitting display device, the method including forming a first electrode on a substrate, the substrate including a plurality of pixel regions divided by a non-pixel region, in each of the pixel regions; forming a pixel defining layer, the pixel defining layer having a plurality of pixel openings, each of the pixel openings exposing the first electrode, on the substrate; forming a hole injection layer on the first electrode; forming a lyophilic layer on the hole injection layer to completely overlap the hole injection layer; forming a hole transport layer on the lyophilic layer; forming a light-emitting layer on the hole transport layer; and forming a second electrode on the light-emitting layer.
    Type: Grant
    Filed: May 1, 2019
    Date of Patent: August 25, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyang Shik Kong, Yoon Ho Kang, Dong Hoon Kwak, Sung Woong Kim, Yool Guk Kim, Jae Hoon Kim, Ye Seul Na, Seok Soon Back, Jae Kwon Hwang
  • Publication number: 20190280250
    Abstract: A method of manufacturing a light-emitting display device, the method including forming a first electrode on a substrate, the substrate including a plurality of pixel regions divided by a non-pixel region, in each of the pixel regions; forming a pixel defining layer, the pixel defining layer having a plurality of pixel openings, each of the pixel openings exposing the first electrode, on the substrate; forming a hole injection layer on the first electrode; forming a lyophilic layer on the hole injection layer to completely overlap the hole injection layer; forming a hole transport layer on the lyophilic layer; forming a light-emitting layer on the hole transport layer; and forming a second electrode on the light-emitting layer.
    Type: Application
    Filed: May 1, 2019
    Publication date: September 12, 2019
    Inventors: Hyang Shik KONG, Yoon Ho KANG, Dong Hoon KWAK, Sung Woong KIM, Yool Guk KIM, Jae Hoon KIM, Ye Seul NA, Seok Soon BACK, Jae Kwon HWANG
  • Patent number: 10312443
    Abstract: A method of manufacturing a light-emitting display device, the method including forming a first electrode on a substrate, the substrate including a plurality of pixel regions divided by a non-pixel region, in each of the pixel regions; forming a pixel defining layer, the pixel defining layer having a plurality of pixel openings, each of the pixel openings exposing the first electrode, on the substrate; forming a hole injection layer on the first electrode; forming a lyophilic layer on the hole injection layer to completely overlap the hole injection layer; forming a hole transport layer on the lyophilic layer; forming a light-emitting layer on the hole transport layer; and forming a second electrode on the light-emitting layer.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: June 4, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyang Shik Kong, Yoon Ho Kang, Dong Hoon Kwak, Sung Woong Kim, Yool Guk Kim, Jae Hoon Kim, Ye Seul Na, Seok Soon Back, Jae Kwon Hwang
  • Patent number: 9799712
    Abstract: A method of manufacturing a light-emitting display device, the method including forming a first electrode on a substrate for each pixel of a plurality of pixels; forming a pixel defining film on the first electrode such that the pixel defining film includes an opening exposing the first electrode; and forming an organic layer on the first electrode, wherein forming the organic layer includes providing an organic solution into the opening of the pixel defining film, and drying the organic solution by performing an exhaust process in a state where an air current is provided by using a drying gas such that the air current is sequentially composed of a position facing the organic solution, a position to which the organic solution is discharged, and a position facing the organic solution.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: October 24, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Katsushi Kishimoto, Atsushi Kitabayashi, Jae Kwon Hwang
  • Publication number: 20170207282
    Abstract: A method of manufacturing a light-emitting display device, the method including forming a first electrode on a substrate for each pixel of a plurality of pixels; forming a pixel defining film on the first electrode such that the pixel defining film includes an opening exposing the first electrode; and forming an organic layer on the first electrode, wherein forming the organic layer includes providing an organic solution into the opening of the pixel defining film, and drying the organic solution by performing an exhaust process in a state where an air current is provided by using a drying gas such that the air current is sequentially composed of a position facing the organic solution, a position to which the organic solution is discharged, and a position facing the organic solution.
    Type: Application
    Filed: July 14, 2016
    Publication date: July 20, 2017
    Inventors: Katsushi KISHIMOTO, Atsushi KITABAYASHI, Jae Kwon HWANG
  • Publication number: 20160343940
    Abstract: A method of manufacturing a light-emitting display device, the method including forming a first electrode on a substrate, the substrate including a plurality of pixel regions divided by a non-pixel region, in each of the pixel regions; forming a pixel defining layer, the pixel defining layer having a plurality of pixel openings, each of the pixel openings exposing the first electrode, on the substrate; forming a hole injection layer on the first electrode; forming a lyophilic layer on the hole injection layer to completely overlap the hole injection layer; forming a hole transport layer on the lyophilic layer; forming a light-emitting layer on the hole transport layer; and forming a second electrode on the light-emitting layer.
    Type: Application
    Filed: October 16, 2015
    Publication date: November 24, 2016
    Inventors: Hyang Shik KONG, Yoon Ho KANG, Dong Hoon KWAK, Sung Woong KIM, Yool Guk KIM, Jae Hoon KIM, Ye Seul NA, Seok Soon BACK, Jae Kwon HWANG
  • Publication number: 20160248035
    Abstract: A light emitting display device includes a substrate including a plurality of pixels, a first electrode, a pixel defining layer on the substrate and having an opening exposing the first electrode, a light emitting layer extending along a side surface of the pixel defining layer from the first electrode in the opening of the pixel defining layer, and including a first portion located on the first electrode and a second portion located on the side surface of the pixel defining layer, the second portion having a thickness decreasing in a direction toward an upper surface of the pixel defining layer from the side surface of the pixel defining layer, a second electrode, and a leakage current blocking layer having a uniform thickness on the side surface of the pixel defining layer between the first electrode and the light emitting layer or between the light emitting layer and the second electrode.
    Type: Application
    Filed: August 25, 2015
    Publication date: August 25, 2016
    Inventors: Jae Kwon Hwang, Yool Guk Kim
  • Patent number: 9293518
    Abstract: A thin film transistor includes a gate electrode on a substrate, the gate electrode including a wire grid pattern, an active layer on the substrate, a gate insulating film between the gate electrode and the active layer, and a source electrode and a drain electrode connected to the active layer.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: March 22, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Jae-Kwon Hwang
  • Patent number: 9099649
    Abstract: Provided are an apparatus for manufacturing an OLED display and a method of manufacturing OLED display. According to another aspect of the present invention, there is provided the method of manufacturing an OLED display which includes placing a substrate having rows and columns of pixels through on a stage, ejecting organic light-emitting ink to the pixels through on the substrate by using a print head placed above the stage, and sequentially covering pixels through coated with the organic light-emitting ink with a cover plate placed above the stage.
    Type: Grant
    Filed: November 5, 2013
    Date of Patent: August 4, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jang Sub Kim, Geun Tak Kim, Hyea Weon Shin, Jae Kwon Hwang
  • Publication number: 20150024528
    Abstract: Provided are an apparatus for manufacturing an OLED display and a method of manufacturing OLED display. According to another aspect of the present invention, there is provided the method of manufacturing an OLED display which includes placing a substrate having rows and columns of pixels through on a stage, ejecting organic light-emitting ink to the pixels through on the substrate by using a print head placed above the stage, and sequentially covering pixels through coated with the organic light-emitting ink with a cover plate placed above the stage.
    Type: Application
    Filed: November 5, 2013
    Publication date: January 22, 2015
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jang Sub Kim, Geun Tak Kim, Hyea Weon Shin, Jae Kwon Hwang
  • Publication number: 20140124746
    Abstract: A thin film transistor includes a gate electrode on a substrate, the gate electrode including a wire grid pattern, an active layer on the substrate, a gate insulating film between the gate electrode and the active layer, and a source electrode and a drain electrode connected to the active layer.
    Type: Application
    Filed: March 13, 2013
    Publication date: May 8, 2014
    Inventor: Jae-Kwon HWANG