Patents by Inventor Jeong-Mook CHOI

Jeong-Mook 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: 11937462
    Abstract: An electroluminescent display device includes an electroluminescent display device includes a substrate; a first pixel row on the substrate including a first plurality of pixels arranged along a first direction; a second pixel row on the substrate including a second plurality of pixels arranged along the first direction, the second pixel row being spaced apart from the first pixel row in a second direction; a first groove between the first and second pixel rows; and a light emitting diode in each pixel of the first and second pixel rows, wherein the first groove includes a first portion at one end of the first pixel row, a second portion at the other end of the first pixel row and a third portion between the first and second portions, and wherein third portion is smaller than the first portion and greater than the second portion.
    Type: Grant
    Filed: February 23, 2022
    Date of Patent: March 19, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Jeong-Mook Choi, Nack-Youn Jung, Hee-Jin Kim, Hak-Min Lee, Myung-O Joo, Sung-Soo Park
  • Patent number: 11812639
    Abstract: An electroluminescent display device includes a substrate including a first pixel column and a second pixel column that respectively include first pixels and second pixels arranged in a first direction and respectively have a first width and a second width in a second direction, wherein the second pixel column is positioned in the second direction from the first pixel column, and the second width is greater than the first width; a light emitting diode in each first pixel and each second pixel and including a first electrode, a light emitting layer and a second electrode; a first bank positioned between adjacent first pixels and between adjacent second pixels and covering an edge of the first electrode; a second bank positioned between the first and second pixel columns; and a first partition wall across the second pixel column along the first direction and positioned on the first electrode.
    Type: Grant
    Filed: December 8, 2020
    Date of Patent: November 7, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Hyuk-Chan Gee, Sang-Bin Lee, Nack-Youn Jung, Jeong-Mook Choi, Sung-Jin Park
  • Patent number: 11658205
    Abstract: An electroluminescent display device includes a substrate on which a display area and a non-display area are defined, a plurality of sub-pixels disposed in the display area on the substrate and arranged along a first direction and a second direction, a light-emitting diode disposed at each of the plurality of sub-pixels and including a first electrode, a light-emitting layer and a second electrode, a first bank disposed between adjacent sub-pixels arranged along the second direction and overlapping edges of the first electrode, and a second bank disposed between adjacent sub-pixels arranged along the first direction and having an opening corresponding to a row of the sub-pixels arranged along the second direction, wherein the opening includes a first portion corresponding to the display area and a second portion corresponding to the non-display area, and a width of the second portion is narrower than a width of the first portion.
    Type: Grant
    Filed: December 8, 2020
    Date of Patent: May 23, 2023
    Assignee: LG Display Co., Ltd.
    Inventor: Jeong-Mook Choi
  • Patent number: 11631724
    Abstract: An electroluminescent display device includes a substrate on which a display area and a non-display area are defined, sub-pixels disposed in the display area on the substrate and arranged along first and second directions, a light-emitting diode disposed at each sub-pixel and including a first electrode, a light-emitting layer and a second electrode, a first bank disposed between adjacent sub-pixels along the second direction and overlapping edges of the first electrode, and a second bank disposed between adjacent sub-pixels along the first direction and having an opening corresponding to a column of the sub-pixels arranged along the second direction, wherein the opening includes a first portion corresponding to the display area and a second portion corresponding to the non-display area, and a bottom surface of the light-emitting layer in the second portion has unevenness, and wherein an uneven pattern is provided under the light-emitting layer in the non-display area.
    Type: Grant
    Filed: December 8, 2020
    Date of Patent: April 18, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Jeong-Mook Choi, Heume-Il Baek, Nack-Youn Jung
  • Publication number: 20220181414
    Abstract: An electroluminescent display device includes an electroluminescent display device includes a substrate; a first pixel row on the substrate including a first plurality of pixels arranged along a first direction; a second pixel row on the substrate including a second plurality of pixels arranged along the first direction, the second pixel row being spaced apart from the first pixel row in a second direction; a first groove between the first and second pixel rows; and a light emitting diode in each pixel of the first and second pixel rows, wherein the first groove includes a first portion at one end of the first pixel row, a second portion at the other end of the first pixel row and a third portion between the first and second portions, and wherein third portion is smaller than the first portion and greater than the second portion.
    Type: Application
    Filed: February 23, 2022
    Publication date: June 9, 2022
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Jeong-Mook CHOI, Nack-Youn JUNG, Hee-Jin KIM, Hak-Min LEE, Myung-O JOO, Sung-Soo PARK
  • Publication number: 20220173180
    Abstract: An electroluminescent display device includes first and second substrates on which a pixel including first, second, and third sub-pixels are defined, a light-emitting diode disposed at each of the first, second, and third sub-pixels on the first substrate and including a first electrode, a light-emitting layer and a second electrode, and a bank between adjacent sub-pixels along a first direction, wherein the light-emitting layer includes first, second, and third light-emitting layers, wherein each of the first and second light-emitting layers includes first and second light-emitting material layers, and the third light-emitting layer includes a second light-emitting material layer, and wherein a height of the first light-emitting material layer of each of the first and second light-emitting layer increases as it approaches the bank, and the second light-emitting material layers of the first, second, and third light-emitting layers are disposed on top and side surfaces of the bank.
    Type: Application
    Filed: November 1, 2021
    Publication date: June 2, 2022
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Sang-Bin LEE, In-Sun YOO, Jeong-Mook CHOI
  • Publication number: 20220173351
    Abstract: An electroluminescent display device includes: a substrate, a first electrode on the substrate, a connection pattern on the substrate, the connection pattern including a same material as the first electrode, a bank covering edges of the first electrode and the connection pattern, a light-emitting layer on the first electrode, a second electrode on the light-emitting layer, the bank, and the connection pattern, and an auxiliary pattern between the connection pattern and the second electrode, the auxiliary pattern including one or more of: a metal oxide, conductive nanoparticles, and a work function-modifying polymer.
    Type: Application
    Filed: November 1, 2021
    Publication date: June 2, 2022
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Heume-Il BAEK, Jun-Ho YOUN, Jeong-Mook CHOI, Hee-Tae LIM, Ji-Ho KANG, Kyoung-Ji BAE, Jin-Ah KWAK, Sang-Bin LEE
  • Patent number: 11289555
    Abstract: An electroluminescent display device includes an electroluminescent display device includes a substrate; a first pixel row on the substrate including a first plurality of pixels arranged along a first direction; a second pixel row on the substrate including a second plurality of pixels arranged along the first direction, the second pixel row being spaced apart from the first pixel row in a second direction; a first groove between the first and second pixel rows; and a light emitting diode in each pixel of the first and second pixel rows, wherein the first groove includes a first portion at one end of the first pixel row, a second portion at the other end of the first pixel row and a third portion between the first and second portions, and wherein third portion is smaller than the first portion and greater than the second portion.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: March 29, 2022
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Jeong-Mook Choi, Nack-Youn Jung, Hee-Jin Kim, Hak-Min Lee, Myung-O Joo, Sung-Soo Park
  • Patent number: 11094761
    Abstract: An organic light emitting display device and a method of fabricating thereof are discussed. The organic light emitting display device according to an example of the invention comprises a first substrate; a plurality of first bank layers arranged along a first direction and a second direction on the first substrate to define a plurality of pixels; a plurality of second bank layers disposed along the first direction on the first bank layers to divide columns of pixels having different colors; a plurality of third bank layers disposed along the second direction on the first bank layers; and an organic light emitting diode in each pixel, the organic light emitting diode including an organic light emitting layer, wherein the third bank layer is made of a same material as the second bank layer and the width of the third bank layer is smaller than that of the second bank layer.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: August 17, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Sung-Soo Park, Nack-Youn Jung, Hee-Jin Kim, Hak-Min Lee, Myung-O Joo, Jeong-Mook Choi
  • Publication number: 20210202613
    Abstract: An electroluminescent display device includes a substrate on which a display area and a non-display area are defined; first, second and third sub-pixel rows in the display area each including a plurality of sub-pixels arranged along a first direction and disposed along a second direction; a light-emitting diode disposed at each of the plurality of sub-pixels and including a first electrode, a light-emitting layer and a second electrode; a dummy sub-pixel in the non-display area and corresponding to the second sub-pixel row; and a partition wall across the third sub-pixel row along the first direction and disposed on the first electrodes of the third sub-pixel row, wherein a width of the second sub-pixel row along the second direction is larger than a width of the first sub-pixel row and smaller than a width of the third sub-pixel row.
    Type: Application
    Filed: December 28, 2020
    Publication date: July 1, 2021
    Inventors: Hyuk-Chan GEE, Sang-Bin LEE, Nack-Youn JUNG, Jun-Ho YOUN, Jeong-Mook CHOI
  • Patent number: 11049918
    Abstract: An organic light emitting display device and method of fabricating thereof is disclosed. The organic light emitting display device comprises a first substrate; a plurality of first bank layers arranged along a first direction and a second direction on the first substrate to define a plurality of pixels, where the first direction and the second direction are orthogonal; a plurality of second bank layers disposed along the first direction on the first bank layers to divide pixels columns of different colors; and an organic light emitting diode in each pixel, the organic light emitting diode including an organic light emitting layer having different thicknesses on different colored pixels, wherein the side surfaces of the second bank layer adjacent to the pixel columns of different colors are inclined, the inclined angle thereof is dependent upon a thickness of the organic light emitting layer in the pixel.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: June 29, 2021
    Assignee: LG Display Co., Ltd.
    Inventors: Hak-Min Lee, Nack-Youn Jung, Hee-Jin Kim, Myung-O Joo, Sung-Soo Park, Jeong-Mook Choi
  • Publication number: 20210193761
    Abstract: An electroluminescent display device includes a substrate including a first pixel column and a second pixel column that respectively include first pixels and second pixels arranged in a first direction and respectively have a first width and a second width in a second direction, wherein the second pixel column is positioned in the second direction from the first pixel column, and the second width is greater than the first width; a light emitting diode in each first pixel and each second pixel and including a first electrode, a light emitting layer and a second electrode; a first bank positioned between adjacent first pixels and between adjacent second pixels and covering an edge of the first electrode; a second bank positioned between the first and second pixel columns; and a first partition wall across the second pixel column along the first direction and positioned on the first electrode.
    Type: Application
    Filed: December 8, 2020
    Publication date: June 24, 2021
    Inventors: Hyuk-Chan GEE, Sang-Bin LEE, Nack-Youn JUNG, Jeong-Mook CHOI, Sung-Jin PARK
  • Publication number: 20210175305
    Abstract: An electroluminescent display device includes a substrate on which a display area and a non-display area are defined, sub-pixels disposed in the display area on the substrate and arranged along first and second directions, a light-emitting diode disposed at each sub-pixel and including a first electrode, a light-emitting layer and a second electrode, a first bank disposed between adjacent sub-pixels along the second direction and overlapping edges of the first electrode, and a second bank disposed between adjacent sub-pixels along the first direction and having an opening corresponding to a column of the sub-pixels arranged along the second direction, wherein the opening includes a first portion corresponding to the display area and a second portion corresponding to the non-display area, and a bottom surface of the light-emitting layer in the second portion has unevenness, and wherein an uneven pattern is provided under the light-emitting layer in the non-display area.
    Type: Application
    Filed: December 8, 2020
    Publication date: June 10, 2021
    Inventors: Jeong-Mook CHOI, Heume-Il BAEK, Nack-Youn JUNG
  • Publication number: 20210175281
    Abstract: An electroluminescent display device includes a substrate on which a display area and a non-display area are defined, a plurality of sub-pixels disposed in the display area on the substrate and arranged along a first direction and a second direction, a light-emitting diode disposed at each of the plurality of sub-pixels and including a first electrode, a light-emitting layer and a second electrode, a first bank disposed between adjacent sub-pixels arranged along the second direction and overlapping edges of the first electrode, and a second bank disposed between adjacent sub-pixels arranged along the first direction and having an opening corresponding to a row of the sub-pixels arranged along the second direction, wherein the opening includes a first portion corresponding to the display area and a second portion corresponding to the non-display area, and a width of the second portion is narrower than a width of the first portion.
    Type: Application
    Filed: December 8, 2020
    Publication date: June 10, 2021
    Inventor: Jeong-Mook CHOI
  • Patent number: 10692949
    Abstract: An electroluminescent display device and method of fabricating the same are discussed.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: June 23, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Sang-Bin Lee, Jeong-Mook Choi
  • Publication number: 20200185471
    Abstract: An organic light emitting display device and method of fabricating thereof is disclosed. The organic light emitting display device comprises a first substrate; a plurality of first bank layers arranged along a first direction and a second direction on the first substrate to define a plurality of pixels, where the first direction and the second direction are orthogonal; a plurality of second bank layers disposed along the first direction on the first bank layers to divide pixels columns of different colors; and an organic light emitting diode in each pixel, the organic light emitting diode including an organic light emitting layer having different thicknesses on different colored pixels, wherein the side surfaces of the second bank layer adjacent to the pixel columns of different colors are inclined, the inclined angle thereof is dependent upon a thickness of the organic light emitting layer in the pixel.
    Type: Application
    Filed: December 5, 2019
    Publication date: June 11, 2020
    Inventors: Hak-Min LEE, Nack-Youn JUNG, Hee-Jin KIM, Myung-O JOO, Sung-Soo PARK, Jeong-Mook CHOI
  • Publication number: 20200185472
    Abstract: An organic light emitting display device and a method of fabricating thereof are discussed. The organic light emitting display device according to an example of the invention comprises a first substrate; a plurality of first bank layers arranged along a first direction and a second direction on the first substrate to define a plurality of pixels; a plurality of second bank layers disposed along the first direction on the first bank layers to divide columns of pixels having different colors; a plurality of third bank layers disposed along the second direction on the first bank layers; and an organic light emitting diode in each pixel, the organic light emitting diode including an organic light emitting layer, wherein the third bank layer is made of a same material as the second bank layer and the width of the third bank layer is smaller than that of the second bank layer.
    Type: Application
    Filed: December 11, 2019
    Publication date: June 11, 2020
    Applicant: LG Display Co., Ltd.
    Inventors: Sung-Soo Park, Nack-Youn Jung, Hee-Jin Kim, Hak-Min Lee, Myung-O Joo, Jeong-Mook Choi
  • Publication number: 20200176532
    Abstract: An electroluminescent display device includes an electroluminescent display device includes a substrate; a first pixel row on the substrate including a first plurality of pixels arranged along a first direction; a second pixel row on the substrate including a second plurality of pixels arranged along the first direction, the second pixel row being spaced apart from the first pixel row in a second direction; a first groove between the first and second pixel rows; and a light emitting diode in each pixel of the first and second pixel rows, wherein the first groove includes a first portion at one end of the first pixel row, a second portion at the other end of the first pixel row and a third portion between the first and second portions, and wherein third portion is smaller than the first portion and greater than the second portion.
    Type: Application
    Filed: August 30, 2019
    Publication date: June 4, 2020
    Applicant: LG Display Co., Ltd.
    Inventors: Jeong-Mook CHOI, Nack-Youn JUNG, Hee-Jin KIM, Hak-Min LEE, Myung-O JOO, Sung-Soo PARK
  • Patent number: 10388222
    Abstract: An electroluminescent display device includes first and second pixels arranged along a first direction on a substrate; a first groove positioned at a side of the first and second pixels and including a first portion extending along the first direction and a second portion corresponding to a space between the first and second pixels; and a light emitting diode in each of the first and second pixels.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: August 20, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Myung-O Joo, Nack-Youn Jung, Jun-Ho Youn, Jeong-Mook Choi, Jun-Young Kim
  • Patent number: 10170521
    Abstract: An organic light-emitting diode display device according to an embodiment includes a substrate on which red, green and blue sub-pixel regions are defined, first electrodes in the red, green and blue sub-pixel regions, respectively, and first, second and third light-emitting layers on the first electrodes in the red, green and blue sub-pixel regions, respectively. The organic light-emitting diode display device further includes a second electrode on the first, second and third light-emitting layers, and red, green and blue color filters disposed on the second electrode and corresponding to the red, green and blue sub-pixel regions, respectively, wherein a thickness of the first light-emitting layer is smaller than a thickness of the second light emitting layer.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: January 1, 2019
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Nack-Youn Jung, Heume-Il Baek, Myung-O Joo, Jeong-Mook Choi, Yun-Joo Jo