Patents by Inventor Song-Yi Jeong

Song-Yi Jeong 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: 10950680
    Abstract: A light-emitting display device includes a substrate having a plurality of subpixels; a first electrode provided in each of the subpixels; a bank defining an emission part in each of the subpixels and having an upper surface that has a larger degree of surface roughness than an upper surface of the first electrode; a first common layer over the subpixels and covering the first electrode and the bank; a light-emitting layer on the first common layer and corresponding to the emission part of each of the subpixels; and a second common layer and a second electrode stacked on the light-emitting layer over the plurality of subpixels.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: March 16, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Dong-Hyeok Lim, Song-Yi Jeong, Kyu-Il Han, Nam-Seok Yoo, Yu-Ri Park
  • Patent number: 10873031
    Abstract: Disclosed are a p-doped conjugated small molecular electrolyte containing a compound represented by Formula 1 and an organic electronic device using the same as a hole transport material. [Ar2—Ar1—Ar2]+??<Formula 1> wherein, in Formula 1, Ar1 is any one selected from the following Compound Group 1, Ar2 is any one selected from the following Compound Group 2a or the following Compound Group 2b, and superscript “+” in the square bracket indicates an oxidized portion of a main chain of the small molecule.
    Type: Grant
    Filed: December 23, 2015
    Date of Patent: December 22, 2020
    Assignee: GWANGJU INSTITUTE OE SCIENCE AND TECHNOLOGY
    Inventors: Kwanghee Lee, Seoung-Ho Lee, Jong-Hoon Lee, Song-Yi Jeong
  • Patent number: 10802355
    Abstract: A liquid crystal display device includes: first and second substrates facing and spaced apart from each other, the first and second substrates having a pixel region; a gate line and a data line on an inner surface of the first substrate, the gate line and the data line crossing each other adjacent to the pixel region; a thin film transistor connected to the gate line and the data line in the pixel region; a first electrode of a plate shape over the thin film transistor; a second electrode of a bar shape over the first electrode; and a liquid crystal layer between the first and second substrates.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: October 13, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Won-Taeck Kim, You-Hyun Eom, So-Hyeong Ahn, Song-Yi Jeong
  • Publication number: 20200212129
    Abstract: A display device achieves a high resolution and a low power consumption through provision of subpixels each including a single light emitting layer and subpixels each including a plurality of overlapping light emitting layers. In the display device, it is also unnecessary to increase the number of expensive fine metal masks even for rendering of various grayscales. In addition, in the display device, different light emitting layers overlap with each other, and a charge generation layer is disposed between the overlapping light emitting layers, and, as such, emission of a secondary color can be achieved without necessity of a material for an additional light emitting layer of the secondary color.
    Type: Application
    Filed: December 26, 2019
    Publication date: July 2, 2020
    Applicant: LG Display Co., Ltd.
    Inventor: Song-Yi JEONG
  • Patent number: 10627682
    Abstract: A liquid crystal display device includes a first substrate having a plurality of pixel regions; thin film transistors on the first substrate; a first electrode electrically connected to each of the thin film transistors and in each of the plurality of pixel regions; a passivation layer on the first electrode; a second electrode on the passivation layer and defining an opening in each of the plurality of pixel regions corresponding to the first electrode; a liquid crystal layer on the second electrode; and a second substrate on the liquid crystal layer.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: April 21, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Song-Yi Jeong, Won-Taeck Kim
  • Publication number: 20200006458
    Abstract: A light-emitting display device includes a substrate having a plurality of subpixels; a first electrode provided in each of the subpixels; a bank defining an emission part in each of the subpixels and having an upper surface that has a larger degree of surface roughness than an upper surface of the first electrode; a first common layer over the subpixels and covering the first electrode and the bank; a light-emitting layer on the first common layer and corresponding to the emission part of each of the subpixels; and a second common layer and a second electrode stacked on the light-emitting layer over the plurality of subpixels.
    Type: Application
    Filed: June 26, 2019
    Publication date: January 2, 2020
    Applicant: LG Display Co., Ltd.
    Inventors: Dong-Hyeok LIM, Song-Yi JEONG, Kyu-Il HAN, Nam-Seok YOO, Yu-Ri PARK
  • Publication number: 20190171069
    Abstract: A liquid crystal display device includes a first substrate having a plurality of pixel regions; thin film transistors on the first substrate; a first electrode electrically connected to each of the thin film transistors and in each of the plurality of pixel regions; a passivation layer on the first electrode; a second electrode on the passivation layer and defining an opening in each of the plurality of pixel regions corresponding to the first electrode; a liquid crystal layer on the second electrode; and a second substrate on the liquid crystal layer.
    Type: Application
    Filed: December 4, 2018
    Publication date: June 6, 2019
    Applicant: LG Display Co., Ltd.
    Inventors: Song-Yi JEONG, Won-Taeck KIM
  • Publication number: 20190171072
    Abstract: A liquid crystal display device includes: first and second substrates facing and spaced apart from each other, the first and second substrates having a pixel region; a gate line and a data line on an inner surface of the first substrate, the gate line and the data line crossing each other adjacent to the pixel region; a thin film transistor connected to the gate line and the data line in the pixel region; a first electrode of a plate shape over the thin film transistor; a second electrode of a bar shape over the first electrode; and a liquid crystal layer between the first and second substrates.
    Type: Application
    Filed: November 27, 2018
    Publication date: June 6, 2019
    Inventors: Won-Taeck KIM, You-Hyun EOM, So-Hyeong AHN, Song-Yi JEONG
  • Publication number: 20180335882
    Abstract: A touch display device including: first and second substrates facing and spaced apart from each other, the first and second substrates including red, green and blue sub-pixels; a polarizing layer on an outer surface of the first substrate; a pixel electrode and a common electrode in each of the red, green and blue sub-pixels on an inner surface of the first substrate; a color filter layer on an inner surface of the second substrate; a wire grid polarizing layer on the color filter layer, the wire grid polarizing layer including a plurality of bars, and a touch signal applied to the wire grid polarizing layer; a liquid crystal layer between the first and second substrates; and a backlight unit under the first substrate.
    Type: Application
    Filed: May 16, 2018
    Publication date: November 22, 2018
    Applicant: LG Display Co., Ltd.
    Inventors: SANG-SOON YOON, YOU-HYUN EOM, SONG-YI JEONG
  • Publication number: 20160181541
    Abstract: Disclosed are a p-doped conjugated small molecular electrolyte containing a compound represented by Formula 1 and an organic electronic device using the same as a hole transport material. [Ar2—Ar1—Ar2]+??<Formula 1> wherein, in Formula 1, Ar1 is any one selected from the following Compound Group 1, Ar2 is any one selected from the following Compound Group 2a or the following Compound Group 2b, and superscript “+” in the square bracket indicates an oxidized portion of a main chain of the small molecule.
    Type: Application
    Filed: December 23, 2015
    Publication date: June 23, 2016
    Inventors: Kwanghee Lee, Seoung-Ho Lee, Jong-Hoon Lee, Song-Yi Jeong