Patents by Inventor Hyeju CHOI

Hyeju CHOI 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: 11997862
    Abstract: A display device comprises a substrate provided with a first subpixel and a second subpixel adjacent to the first subpixel, a first electrode provided on the substrate, including a first sub electrode provided on the first subpixel and a second sub electrode provided on the second subpixel, an organic light emitting layer including a first organic light emitting layer arranged on the first sub electrode and a second organic light emitting layer arranged on the second sub electrode, a second electrode arranged on the organic light emitting layer, and a first bank provided between the first sub electrode and the second sub electrode, partitioning the first subpixel from the second subpixel, wherein the first organic light emitting layer includes a light emitting layer and a first hole transporting layer arranged on the light emitting layer, the first hole transporting layer includes a first sub hole transporting layer and a second sub hole transporting layer, and the first sub hole transporting layer of the fir
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: May 28, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: JoonYoung Heo, Daehee Kim, JiYoung Park, YoungHoon Son, Hyeju Choi
  • Publication number: 20230209911
    Abstract: A display device including a plurality of pixels disposed on a substrate, each pixel including a plurality of sub-pixels; a first electrode disposed in each sub-pixel and connected to transistors for driving the plurality of sub-pixels to emit light; and a bank including a plurality of bank holes, each bank hole exposing a portion of the first electrode and defining emission light-areas of the sub-pixels. Further, each sub-pixel includes a sub-pixel pattern disposed on a bottom surface of the bank hole and contacting exposed surfaces of the first electrode, and extending continuously on sidewalls of the bank hole and along top outside edge surfaces of the bank. Also, a thickness of the sub-pixel pattern decreases step-by-step as the sub-pixel pattern extends along the top outside edge surfaces of the bank in a direction toward an adjacent sub-pixel.
    Type: Application
    Filed: December 22, 2022
    Publication date: June 29, 2023
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Younghoon Son, Daehee Kim, Jiyoung Park, Hyeju Choi
  • Publication number: 20230080568
    Abstract: An organic light-emitting display device and a method for manufacturing the same are disclosed. The organic light-emitting display device includes a driving thin-film transistor on a substrate; an insulating film covering the driving thin-film transistor except for a portion thereof; a planarization layer disposed on the insulating film and having a pixel contact hole defined therein exposing a portion of a surface of an electrode; a first electrode disposed on the planarization layer and extending on an inner surface of the pixel contact hole so as to connect to the transistor via the electrode; a bank disposed on the planarization layer so as to define a light-emitting area of a pixel; a plurality of pixel patterns disposed on the first electrode; a protective pattern filling the pixel contact hole and having a trench-shaped space; and a photoresist plug pattern filling the trench-shaped space.
    Type: Application
    Filed: September 7, 2022
    Publication date: March 16, 2023
    Inventors: Hyeju Choi, Miso Kim
  • Patent number: 11538867
    Abstract: The present disclosure provides an electroluminescent display apparatus including a substrate including a first subpixel, a second subpixel, and a third subpixel, a first electrode in each of the first subpixel, the second subpixel, and the third subpixel on the substrate, a bank provided in a boundary between any two of the first subpixel, the second subpixel, and the third subpixel to cover an edge of the first electrode, a protection layer on the first electrode and the bank, a light emitting layer on the protection layer, and a second electrode on the light emitting layer.
    Type: Grant
    Filed: April 23, 2021
    Date of Patent: December 27, 2022
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Daehee Kim, JiYoung Park, Hyeju Choi
  • Patent number: 11211438
    Abstract: An electroluminescent display apparatus comprises a first subpixel, a second subpixel, and a third subpixel defined on a substrate; a first electrode disposed in each of the first subpixel, the second subpixel, and the third subpixel in the substrate; a bank provided between two adjacent subpixels among the first subpixel, the second subpixel, and the third subpixel to cover an edge of the first electrode; a first light emitting layer disposed on the first electrode of the first subpixel; a second light emitting layer disposed on the first electrode of the second subpixel; a third light emitting layer disposed on the first electrode of the third subpixel; and a second electrode disposed on the first to third light emitting layers, wherein the third light emitting layer is extended onto the bank between the first subpixel and the second subpixel.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: December 28, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: JiYoung Park, KyungHoon Lee, Daehee Kim, Hyeju Choi
  • Patent number: 11088208
    Abstract: A display device comprises a substrate provided with a first subpixel area and a second subpixel area, a first electrode provided on the substrate, including a first sub electrode provided in the first subpixel area and a second sub electrode provided in the second subpixel area, an organic light emitting layer including a first organic light emitting layer arranged on the first sub electrode and a second organic light emitting layer arranged on the second sub electrode, and a second electrode arranged on the organic light emitting layer, wherein the first organic light emitting layer includes a first pattern layer, a second pattern layer provided on the first pattern layer and a third pattern layer provided on the second pattern layer, the second organic light emitting layer includes a first pattern layer, a second pattern layer provided on the first pattern layer and a third pattern layer provided on the second pattern layer, the first pattern layer of the first organic light emitting layer is spaced apart
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: August 10, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Daehee Kim, JiYoung Park, Hyeju Choi
  • Publication number: 20210242289
    Abstract: The present disclosure provides an electroluminescent display apparatus including a substrate including a first subpixel, a second subpixel, and a third subpixel, a first electrode in each of the first subpixel, the second subpixel, and the third subpixel on the substrate, a bank provided in a boundary between any two of the first subpixel, the second subpixel, and the third subpixel to cover an edge of the first electrode, a protection layer on the first electrode and the bank, a light emitting layer on the protection layer, and a second electrode on the light emitting layer.
    Type: Application
    Filed: April 23, 2021
    Publication date: August 5, 2021
    Applicant: LG Display Co., Ltd.
    Inventors: Daehee KIM, JiYoung PARK, Hyeju CHOI
  • Patent number: 11024678
    Abstract: The present disclosure provides an electroluminescent display apparatus including a substrate including a first subpixel, a second subpixel, and a third subpixel, a first electrode in each of the first subpixel, the second subpixel, and the third subpixel on the substrate, a bank provided in a boundary between any two of the first subpixel, the second subpixel, and the third subpixel to cover an edge of the first electrode, a protection layer on the first electrode and the bank, a light emitting layer on the protection layer, and a second electrode on the light emitting layer.
    Type: Grant
    Filed: October 22, 2019
    Date of Patent: June 1, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Daehee Kim, JiYoung Park, Hyeju Choi
  • Publication number: 20200212336
    Abstract: A display device comprises a substrate provided with a first subpixel and a second subpixel adjacent to the first subpixel, a first electrode provided on the substrate, including a first sub electrode provided on the first subpixel and a second sub electrode provided on the second subpixel, an organic light emitting layer including a first organic light emitting layer arranged on the first sub electrode and a second organic light emitting layer arranged on the second sub electrode, a second electrode arranged on the organic light emitting layer, and a first bank provided between the first sub electrode and the second sub electrode, partitioning the first subpixel from the second subpixel, wherein the first organic light emitting layer includes a light emitting layer and a first hole transporting layer arranged on the light emitting layer, the first hole transporting layer includes a first sub hole transporting layer and a second sub hole transporting layer, and the first sub hole transporting layer of the fir
    Type: Application
    Filed: December 23, 2019
    Publication date: July 2, 2020
    Applicant: LG Display Co., Ltd.
    Inventors: JoonYoung HEO, Daehee KIM, JiYoung PARK, YoungHoon SON, Hyeju CHOI
  • Publication number: 20200176523
    Abstract: The present disclosure provides an electroluminescent display apparatus including a substrate including a first subpixel, a second subpixel, and a third subpixel, a first electrode in each of the first subpixel, the second subpixel, and the third subpixel on the substrate, a bank provided in a boundary between any two of the first subpixel, the second subpixel, and the third subpixel to cover an edge of the first electrode, a protection layer on the first electrode and the bank, a light emitting layer on the protection layer, and a second electrode on the light emitting layer.
    Type: Application
    Filed: October 22, 2019
    Publication date: June 4, 2020
    Applicant: LG Display Co., Ltd.
    Inventors: Daehee KIM, JiYoung PARK, Hyeju CHOI
  • Publication number: 20200176533
    Abstract: An electroluminescent display apparatus comprises a first subpixel, a second subpixel, and a third subpixel defined on a substrate; a first electrode disposed in each of the first subpixel, the second subpixel, and the third subpixel in the substrate; a bank provided between two adjacent subpixels among the first subpixel, the second subpixel, and the third subpixel to cover an edge of the first electrode; a first light emitting layer disposed on the first electrode of the first subpixel; a second light emitting layer disposed on the first electrode of the second subpixel; a third light emitting layer disposed on the first electrode of the third subpixel; and a second electrode disposed on the first to third light emitting layers, wherein the third light emitting layer is extended onto the bank between the first subpixel and the second subpixel.
    Type: Application
    Filed: November 26, 2019
    Publication date: June 4, 2020
    Applicant: LG Display Co., Ltd.
    Inventors: JiYoung PARK, KyungHoon LEE, Daehee KIM, Hyeju CHOI
  • Publication number: 20200161383
    Abstract: A display device comprises a substrate provided with a first subpixel area and a second subpixel area, a first electrode provided on the substrate, including a first sub electrode provided in the first subpixel area and a second sub electrode provided in the second subpixel area, an organic light emitting layer including a first organic light emitting layer arranged on the first sub electrode and a second organic light emitting layer arranged on the second sub electrode, and a second electrode arranged on the organic light emitting layer, wherein the first organic light emitting layer includes a first pattern layer, a second pattern layer provided on the first pattern layer and a third pattern layer provided on the second pattern layer, the second organic light emitting layer includes a first pattern layer, a second pattern layer provided on the first pattern layer and a third pattern layer provided on the second pattern layer, the first pattern layer of the first organic light emitting layer is spaced apart
    Type: Application
    Filed: October 11, 2019
    Publication date: May 21, 2020
    Applicant: LG Display Co., Ltd.
    Inventors: Daehee KIM, JiYoung PARK, Hyeju CHOI