Patents by Inventor Heume Il Baek

Heume Il Baek 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: 11864425
    Abstract: An electroluminescent display device includes a plurality of sub-pixels arranged on a substrate along a first direction and a second direction crossing the first direction, and a light-emitting diode disposed in each of the plurality of sub-pixels and including a first electrode, a light-emitting layer and a second electrode, wherein among the plurality of sub-pixels, the sub-pixel of an nth row and an mth column has a same color as the sub-pixel of an (n+1)th row and an (m?1)th column, where n is a natural number and m is a natural number large than 4, and wherein among the plurality of sub-pixels, the sub-pixel of the nth row and a kth column has a same color as the sub-pixel of the nth row and a (k?2)th column, where k is a natural number smaller than or equal to m.
    Type: Grant
    Filed: August 13, 2019
    Date of Patent: January 2, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Heume-Il Baek, Ho-Jin Ryu
  • Patent number: 11839108
    Abstract: A transparent display device includes a substrate on which a pixel including first, second, and third emission areas and first and second transparent areas arranged along a first direction is defined, a light-emitting diode disposed in each of the first, second, and third emission areas and including a first electrode, a light-emitting layer, and a second electrode, and an auxiliary electrode extending in a second direction perpendicular to the first direction and electrically connected to the second electrode. The first emission area and the auxiliary electrode are disposed between the first transparent area and the second transparent area, and the second transparent area includes a first portion between the first emission area and the second emission area. Further, the first transparent area has a higher transmittance than the second transparent area.
    Type: Grant
    Filed: October 28, 2021
    Date of Patent: December 5, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Jun-Ho Youn, Heume-Il Baek, In-Sun Yoo, Sang-Bin Lee
  • Patent number: 11825693
    Abstract: A transparent display device includes a substrate on which a pixel including an emission area and a first transparent area is defined, and a light-emitting diode provided in the emission area and including a first electrode, a light-emitting layer, and a second electrode. The transparent display device further includes an anti-deposition layer provided in the first transparent area. The height of the light-emitting layer at an edge area of the emission area is higher than the height of the light-emitting layer at a center area of the emission area. Further, the second electrode is disposed over the entire surface excluding the first transparent area, and the height of the anti-deposition layer at an edge area of the first transparent area is higher than the height of the anti-deposition layer at a center area of the first transparent area.
    Type: Grant
    Filed: October 28, 2021
    Date of Patent: November 21, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Jun-Ho Youn, Heume-Il Baek
  • 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
  • Patent number: 11594701
    Abstract: An electroluminescent display device comprises a substrate, a first electrode on the substrate, a connection pattern on the substrate and spaced apart from the first electrode, a bank covering edges of the first electrode and the connection pattern, a light-emitting layer on the first electrode, and a second electrode on the light-emitting layer, the bank and the connection pattern, wherein the connection pattern includes at least one protrusion part and a flat part, and wherein each of the first electrode and the connection pattern includes a first layer and a second layer, the second layer is disposed between the substrate and the first layer, and the second layer of the connection pattern has the at least one protrusion part.
    Type: Grant
    Filed: December 1, 2020
    Date of Patent: February 28, 2023
    Assignee: LG Display Co., Ltd.
    Inventor: Heume-Il Baek
  • Publication number: 20220208865
    Abstract: A transparent display device includes a substrate on which a pixel including first, second, and third emission areas and first and second transparent areas arranged along a first direction is defined, a light-emitting diode disposed in each of the first, second, and third emission areas and including a first electrode, a light-emitting layer, and a second electrode, and an auxiliary electrode extending in a second direction perpendicular to the first direction and electrically connected to the second electrode. The first emission area and the auxiliary electrode are disposed between the first transparent area and the second transparent area, and the second transparent area includes a first portion between the first emission area and the second emission area. Further, the first transparent area has a higher transmittance than the second transparent area.
    Type: Application
    Filed: October 28, 2021
    Publication date: June 30, 2022
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Jun-Ho YOUN, HEUME-IL BAEK, In-Sun YOO, Sang-Bin LEE
  • Publication number: 20220181395
    Abstract: A transparent display device includes a substrate on which a pixel including an emission area and a first transparent area is defined, and a light-emitting diode provided in the emission area and including a first electrode, a light-emitting layer, and a second electrode. The transparent display device further includes an anti-deposition layer provided in the first transparent area. The height of the light-emitting layer at an edge area of the emission area is higher than the height of the light-emitting layer at a center area of the emission area. Further, the second electrode is disposed over the entire surface excluding the first transparent area, and the height of the anti-deposition layer at an edge area of the first transparent area is higher than the height of the anti-deposition layer at a center area of the first transparent area.
    Type: Application
    Filed: October 28, 2021
    Publication date: June 9, 2022
    Applicant: LG Display Co., Ltd.
    Inventors: Jun-Ho YOUN, HEUME-IL BAEK
  • 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: 11063097
    Abstract: A transparent display device includes: a substrate including an emission area and a first transparent area; first, second, and third pixel regions on the substrate and including the emission area and the first transparent area; a first bank on the substrate; a first opening surrounded by the first bank and corresponding to the first pixel region; a second opening surrounded by the first bank and corresponding to the second pixel region; a third opening surrounded by the first bank and corresponding to the third pixel region; a plurality of second banks overlapping at least one of the first, second, and third openings, and overlapping the first bank; and a light-emitting diode on the first, second, and third openings on the substrate.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: July 13, 2021
    Assignee: LG Display Co., Ltd.
    Inventor: Heume-Il Baek
  • 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: 20210175460
    Abstract: An electroluminescent display device comprises a substrate, a first electrode on the substrate, a connection pattern on the substrate and spaced apart from the first electrode, a bank covering edges of the first electrode and the connection pattern, a light-emitting layer on the first electrode, and a second electrode on the light-emitting layer, the bank and the connection pattern, wherein the connection pattern includes at least one protrusion part and a flat part, and wherein each of the first electrode and the connection pattern includes a first layer and a second layer, the second layer is disposed between the substrate and the first layer, and the second layer of the connection pattern has the at least one protrusion part.
    Type: Application
    Filed: December 1, 2020
    Publication date: June 10, 2021
    Inventor: Heume-Il BAEK
  • Patent number: 10840471
    Abstract: An organic light emitting diode display device includes a substrate on which first, second and third pixel regions are defined; a first electrode in each of the first, second and third pixel regions on the substrate; a hole auxiliary layer on the first electrode; a first light emitting material layer on the hole auxiliary layer and emitting first light; an electron auxiliary layer on the first light emitting material layer; a second electrode on the electron auxiliary layer; and a color changing layer under the first electrode or on the second electrode, wherein the color changing layer includes first, second and third portions corresponding to the first, second and third pixel regions, respectively, and wherein the first portion absorbs the first light and outputs second light, the second portion absorbs the first light and outputs third light, and the third portion passes the first light as it is.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: November 17, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Jun-Ho Youn, Heume-Il Baek
  • Publication number: 20200176530
    Abstract: A transparent display device includes: a substrate including an emission area and a first transparent area; first, second, and third pixel regions on the substrate and including the emission area and the first transparent area; a first bank on the substrate; a first opening surrounded by the first bank and corresponding to the first pixel region; a second opening surrounded by the first bank and corresponding to the second pixel region; a third opening surrounded by the first bank and corresponding to the third pixel region; a plurality of second banks overlapping at least one of the first, second, and third openings, and overlapping the first bank; and a light-emitting diode on the first, second, and third openings on the substrate.
    Type: Application
    Filed: July 29, 2019
    Publication date: June 4, 2020
    Applicant: LG Display Co., Ltd.
    Inventor: Heume-Il BAEK
  • Publication number: 20200176531
    Abstract: An electroluminescent display device includes a plurality of sub-pixels arranged on a substrate along a first direction and a second direction crossing the first direction, and a light-emitting diode disposed in each of the plurality of sub-pixels and including a first electrode, a light-emitting layer and a second electrode, wherein among the plurality of sub-pixels, the sub-pixel of an nth row and an mth column has a same color as the sub-pixel of an (n+1)th row and an (m?1)th column, where n is a natural number and m is a natural number large than 4, and wherein among the plurality of sub-pixels, the sub-pixel of the nth row and a kth column has a same color as the sub-pixel of the nth row and a (k?2)th column, where k is a natural number smaller than or equal to m.
    Type: Application
    Filed: August 13, 2019
    Publication date: June 4, 2020
    Applicant: LG Display Co., Ltd.
    Inventors: HEUME-IL BAEK, HO-JIN RYU
  • 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
  • Publication number: 20180182990
    Abstract: An organic light emitting diode display device includes a substrate on which first, second and third pixel regions are defined; a first electrode in each of the first, second and third pixel regions on the substrate; a hole auxiliary layer on the first electrode; a first light emitting material layer on the hole auxiliary layer and emitting first light; an electron auxiliary layer on the first light emitting material layer; a second electrode on the electron auxiliary layer; and a color changing layer under the first electrode or on the second electrode, wherein the color changing layer includes first, second and third portions corresponding to the first, second and third pixel regions, respectively, and wherein the first portion absorbs the first light and outputs second light, the second portion absorbs the first light and outputs third light, and the third portion passes the first light as it is.
    Type: Application
    Filed: December 15, 2017
    Publication date: June 28, 2018
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Jun-Ho YOUN, Heume-Il BAEK
  • Publication number: 20170194385
    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: Application
    Filed: November 29, 2016
    Publication date: July 6, 2017
    Applicant: LG Display Co., Ltd.
    Inventors: Nack-Youn JUNG, Heume-Il BAEK, Myung-O JOO, Jeong-Mook CHOI, Yun-Joo JO
  • Patent number: 9627649
    Abstract: Discussed is an organic light emitting display device. An OLED including a transparent anode formed of one conductive transparent material and an organic light emitting diode (OLED) including a cavity anode formed of a plurality of conductive materials are provided in one panel.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: April 18, 2017
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Heume Il Baek, Ho Jin Ryu, Young Gu Lee
  • Patent number: 9305979
    Abstract: An OLED display device includes a substrate; pixel regions defined by gate and data lines, each pixel region including red, green, first blue and second blue sub-pixels; a TFT in each pixel region; a first electrode connected to the thin film transistor; an insulating layer exposing the first electrode; hole injecting and hole transporting layers stacked on the first electrode; red, green and blue emitting layer on the hole transporting layer, the red and green emitting layers respectively being in the red and green sub-pixels, and the blue emitting layer being in the first and second blue sub-pixels; electron transporting and electron injecting layers stacked on the red, green and blue emitting layers; and a second electrode on the insulating layer and the electron injecting layer, wherein the first electrode in the second blue sub-pixel has a multi-layered structure of the first electrode layer and at least one metal layer.
    Type: Grant
    Filed: August 22, 2013
    Date of Patent: April 5, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: Heume-Il Baek, Ji-Heun Lee
  • Publication number: 20150144925
    Abstract: Discussed is an organic light emitting display device. An OLED including a transparent anode formed of one conductive transparent material and an organic light emitting diode (OLED) including a cavity anode formed of a plurality of conductive materials are provided in one panel.
    Type: Application
    Filed: November 25, 2014
    Publication date: May 28, 2015
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Heume Il BAEK, Ho Jin RYU, Young Gu LEE