Patents by Inventor Joon-Gu Lee

Joon-Gu Lee 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).

  • Publication number: 20220052267
    Abstract: A method of manufacturing an organic light-emitting display apparatus includes forming a pixel electrode and a pixel-defining layer on a substrate, the pixel-defining layer covering edges of the pixel electrode sequentially forming a lift-off layer and a photoresist on the pixel electrode and the pixel-defining layer patterning the lift-off layer and the photoresist to define an opening that exposes a top surface of the pixel electrode and a portion of the pixel-defining layer sequentially forming an intermediate layer and an opposite electrode in the opening and on the photoresist, the intermediate layer including an emission layer forming a passivation layer to cover an entirety of a top surface and end portions of the opposite electrode and removing the lift-off layer and the photoresist that remain outside the opening.
    Type: Application
    Filed: May 23, 2019
    Publication date: February 17, 2022
    Inventors: Se Hoon Jeong, Sung Hun Key, Jae Sik Kim, Jae Ik Kim, Yeon Hwa Lee, Joon Gu Lee, Choel Min Jang, Eun Jung
  • Publication number: 20210376301
    Abstract: A display device may include a first electrode, a second electrode, an emission layer, an intervening layer, and a first encapsulation layer. The second electrode may overlap the first electrode. The emission layer may be disposed between the first electrode and the second electrode, may overlap the first electrode, and may include a light emitting material. The intervening layer may directly contact the second electrode, may be spaced from each of the first electrode and the emission layer, and may include a fluorine compound. A first section of the first encapsulation layer may overlap the emission layer. The intervening layer may be positioned between the second electrode and a second section of the first encapsulation layer.
    Type: Application
    Filed: March 10, 2021
    Publication date: December 2, 2021
    Inventors: Jae Sik KIM, Jae Ik KIM, Jung Sun PARK, Seung Yong SONG, Duck Jung LEE, Yeon Hwa LEE, Joon Gu LEE, Kyu Hwan HWANG
  • Publication number: 20210118969
    Abstract: A display device includes a thin film transistor disposed on a base substrate, an insulation layer covering the thin film transistor, an organic light-emitting diode disposed on the insulation layer, a bus electrode and an organic fluoride pattern. The organic light-emitting diode includes a first electrode electrically connected to the thin film transistor, an organic light-emitting layer disposed on the first electrode, and a second electrode disposed on the organic light-emitting layer. The bus electrode is disposed on the second electrode. The organic fluoride pattern is disposed adjacent to the bus electrode.
    Type: Application
    Filed: October 13, 2020
    Publication date: April 22, 2021
    Applicant: Samsung Display Co., LTD.
    Inventors: Jae Sik KIM, Ji Young CHOUNG, Jae Ik KIM, Yeon Hwa LEE, Joon Gu LEE
  • Patent number: 10868088
    Abstract: A display device is provided. The display device includes a substrate including an active region in which a plurality of pixels are arranged; a first electrode layer disposed on the substrate and including a first electrode disposed in each pixel and an auxiliary electrode spaced apart from the first electrode and disposed along a boundary of each pixel; an intermediate layer disposed on the first electrode and including a light emitting layer; and a second electrode disposed on the intermediate layer, disposed in each pixel, and electrically connected to the auxiliary electrode; wherein a plurality of unit pixel groups, each including one or more pixels, are defined on the substrate, the respective second electrodes of the pixels belonging to each unit pixel group are electrically connected to each other by the auxiliary electrode, and the auxiliary electrodes belonging to different unit pixel groups are electrically separated from each other.
    Type: Grant
    Filed: January 13, 2020
    Date of Patent: December 15, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seung Lyong Bok, Joon Gu Lee, Ki Cheol Kim
  • Publication number: 20200266246
    Abstract: A display device is provided. The display device includes a substrate including an active region in which a plurality of pixels are arranged; a first electrode layer disposed on the substrate and including a first electrode disposed in each pixel and an auxiliary electrode spaced apart from the first electrode and disposed along a boundary of each pixel; an intermediate layer disposed on the first electrode and including a light emitting layer; and a second electrode disposed on the intermediate layer, disposed in each pixel, and electrically connected to the auxiliary electrode; wherein a plurality of unit pixel groups, each including one or more pixels, are defined on the substrate, the respective second electrodes of the pixels belonging to each unit pixel group are electrically connected to each other by the auxiliary electrode, and the auxiliary electrodes belonging to different unit pixel groups are electrically separated from each other.
    Type: Application
    Filed: January 13, 2020
    Publication date: August 20, 2020
    Inventors: SEUNG LYONG BOK, Joon Gu LEE, Ki Cheol KIM
  • Patent number: 10714559
    Abstract: According to an exemplary embodiment of the present disclosure, an organic light emitting element includes: a first electrode; a second electrode overlapping the first electrode; and an emission layer disposed between the first electrode and the second electrode, wherein at least one of the first electrode and the second electrode includes a metal layer including a first material, an oxidation layer including a second material and disposed on two opposing surfaces of the metal layer, and a barrier layer disposed at a surface of the oxidation layer, and the second material has a smaller Gibbs free energy than that of the first material.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: July 14, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Joon Gu Lee, Yeon Hwa Lee, Se Hoon Jeong, Ji Young Choung, Man Ho Kim, Jae Ik Kim, Jin Baek Choi
  • Patent number: 10158094
    Abstract: Disclosed is an organic light emitting diode, including a cathode electrode and an anode electrode positioned above the cathode electrode. An emitting layer is positioned between the cathode electrode and the anode electrode. An electron transporting unit is positioned between the cathode electrode and the emitting layer. The electron transporting unit is configured to inject and transport electrons to the emitting layer. A buffer layer is disposed between the cathode electrode and the electron transporting unit. The buffer layer includes an organic layer and a metallic layer disposed on the organic layer.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: December 18, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Joon Gu Lee, Jae Sik Kim, Yeon Hwa Lee, Se Hoon Jeong
  • Patent number: 10038160
    Abstract: According to an exemplary embodiment of the present disclosure, an organic light emitting element includes: a first electrode; an organic emission layer disposed on the first electrode; and a second electrode disposed on the organic emission layer. The first electrode includes a first sub-electrode including a first metal, a second sub-electrode disposed on the first sub-electrode and including a transparent conductive material, and a barrier layer disposed on the second sub-electrode and including a second metal in the form of an oxide.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: July 31, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Joon Gu Lee, Jae Ik Kim, Yeon Hwa Lee
  • Publication number: 20180040843
    Abstract: Disclosed is an organic light emitting diode, including a cathode electrode and an anode electrode positioned above the cathode electrode. An emitting layer is positioned between the cathode electrode and the anode electrode. An electron transporting unit is positioned between the cathode electrode and the emitting layer. The electron transporting unit is configured to inject and transport electrons to the emitting layer. A buffer layer is disposed between the cathode electrode and the electron transporting unit. The buffer layer includes an organic layer and a metallic layer disposed on the organic layer.
    Type: Application
    Filed: June 5, 2017
    Publication date: February 8, 2018
    Inventors: Joon Gu LEE, Jae Sik KIM, Yeon Hwa LEE, Se Hoon JEONG
  • Patent number: 9806288
    Abstract: An organic light emitting diode, a method for manufacturing an organic light emitting diode, and an organic light emitting diode display, the OLED including a substrate; a first electrode on the substrate, the first electrode including a sequentially stacked conductive layer and transparent protective layer; a hole transfer layer on a surface of the transparent protective layer; an organic emitting layer on the hole transfer layer, the organic emitting layer emitting light having a specific color; a common layer on the organic emitting layer; and a second electrode on the common layer.
    Type: Grant
    Filed: January 15, 2016
    Date of Patent: October 31, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Joon Gu Lee, Jae Ik Kim, Yeon Hwa Lee
  • Publication number: 20170207290
    Abstract: According to an exemplary embodiment of the present disclosure, an organic light emitting element includes: a first electrode; a second electrode overlapping the first electrode; and an emission layer disposed between the first electrode and the second electrode, wherein at least one of the first electrode and the second electrode includes a metal layer including a first material, an oxidation layer including a second material and disposed on two opposing surfaces of the metal layer, and a barrier layer disposed at a surface of the oxidation layer, and the second material has a smaller Gibbs free energy than that of the first material.
    Type: Application
    Filed: January 12, 2017
    Publication date: July 20, 2017
    Inventors: Joon Gu LEE, Yeon Hwa LEE, Se Hoon JEONG, Ji Young CHOUNG, Man Ho KIM, Jae Ik KIM, Jin Baek CHOI
  • Patent number: 9620744
    Abstract: The optical patterning mask had a protection layer on a light absorption layer. It prevents the light absorption layer from damaged by the cleaning gas when processing the used optical patterning mask for reuse. The protection layer may be made of the same material as bank layer or of material different from the bank layer. The bank layer defines the boundary of the area to be transferred in the transfer layer. The protection layer of the present invention can maintain longer the transfer efficiency of the optical patterning mask, even when the same mask is used repeatedly after cleaning, since the light absorption layer protected from cleaning process can maintain longer its heat conversion property.
    Type: Grant
    Filed: April 6, 2015
    Date of Patent: April 11, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin Baek Choi, Yeon Hwa Lee, Joon Gu Lee
  • Patent number: 9614193
    Abstract: A method of manufacturing a display device is disclosed. In one aspect, a display device comprises a lower substrate, a light-emitting element formed on the lower substrate and comprising a plurality of pixels, an upper substrate disposed on the light-emitting element with a gap therebetween sealed with a sealant. In addition, the device includes a filler filling the gap between the light-emitting element and the upper substrate, and a light-absorbing material formed between the lower substrate and the upper substrate and selectively absorbing light of a certain wavelength range.
    Type: Grant
    Filed: August 14, 2015
    Date of Patent: April 4, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Won-Jong Kim, Joon-Gu Lee, Ji-Young Choung, Jin-Baek Choi, Yeon-Hwa Lee, Young-Woo Song, Jong-Hyuk Lee
  • Publication number: 20170084862
    Abstract: According to an exemplary embodiment of the present disclosure, an organic light emitting element includes: a first electrode; an organic emission layer disposed on the first electrode; and a second electrode disposed on the organic emission layer. The first electrode includes a first sub-electrode including a first metal, a second sub-electrode disposed on the first sub-electrode and including a transparent conductive material, and a barrier layer disposed on the second sub-electrode and including a second metal in the form of an oxide.
    Type: Application
    Filed: May 20, 2016
    Publication date: March 23, 2017
    Inventors: Joon Gu Lee, Jae Ik Kim, Yeon Hwa Lee
  • Patent number: 9583709
    Abstract: A mask for forming an organic layer pattern, the mask including a photomask having a first substrate and a reflecting layer on the first substrate; and a donor substrate on the photomask and separated therefrom, the donor substrate including a second substrate and an absorption part on the second substrate, wherein the photomask comprises a reflecting part configured to reflect light incident to the photomask and a light concentrating part configured to concentrate the light and transmit the light to the donor substrate.
    Type: Grant
    Filed: November 4, 2014
    Date of Patent: February 28, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun Sung Bang, Jae Sik Kim, Yeon Hwa Lee, Joon Gu Lee, Ji Young Choung, Jin Baek Choi, Kyu Hwan Hwang, Young Woo Song
  • Publication number: 20170012238
    Abstract: An organic light emitting diode, a method for manufacturing an organic light emitting diode, and an organic light emitting diode display, the OLED including a substrate; a first electrode on the substrate, the first electrode including a sequentially stacked conductive layer and transparent protective layer; a hole transfer layer on a surface of the transparent protective layer; an organic emitting layer on the hole transfer layer, the organic emitting layer emitting light having a specific color; a common layer on the organic emitting layer; and a second electrode on the common layer.
    Type: Application
    Filed: January 15, 2016
    Publication date: January 12, 2017
    Inventors: Joon Gu LEE, Jae Ik KIM, Yeon Hwa LEE
  • Patent number: 9425426
    Abstract: In an aspect, an organic light emitting diode display including: a substrate; a first electrode and an auxiliary electrode positioned on the substrate and separated from each other; an absorption electrode positioned on the auxiliary electrode; an organic emission layer positioned on the first electrode and having a contact hole exposing the auxiliary electrode and the absorption electrode; and a second electrode positioned on the organic emission layer and connected to the auxiliary electrode and the absorption electrode through the contact hole is provided. In an aspect, the organic light emitting diode (OLED) display may minimize the voltage drop of the driving power passing through the large-sized electrode of the thin film for driving the organic emission layer, and may simplify the removal process of the organic emission layer on the auxiliary electrode by adding the absorption electrode on the auxiliary electrode.
    Type: Grant
    Filed: September 11, 2015
    Date of Patent: August 23, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin Baek Choi, Hyun Sung Bang, Yeon Hwa Lee, Joon Gu Lee, Ji Young Choung, Young Woo Song
  • Patent number: 9385347
    Abstract: An optical mask includes a light-to-heat conversion layer with an improved temperature profile. The optical masks may comprise a light-transmitting base substrate; a first reflective pattern layer which is formed on the light-transmitting base substrate comprising a first opening portion transmitting light emitted from under the light-transmitting base substrate and a first reflective portion reflecting the light; a second reflective pattern layer which is formed over the first opening portion comprising a second opening portion overlapping a first area of the first opening portion and a second reflective portion overlapping a second area of the first opening portion; and a light-to-heat conversion pattern layer which is formed on the light-transmitting base substrate, being disposed in the first area of the first opening portion, absorbing at least a part of the light, and converting the light absorbed into heat.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: July 5, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Joon Gu Lee, Yeon Hwa Lee, Jin Baek Choi, Young Gil Kwon
  • Patent number: 9360748
    Abstract: An optical mask including a transmissive base substrate, a reflective pattern layer, and a photothermal conversion pattern layer. The reflective pattern layer is disposed on the transmissive base substrate. The reflective pattern layer includes reflectors. The photothermal conversion pattern layer is disposed on the transmissive base substrate among the reflectors. The photothermal conversion pattern layer includes first regions with a first light absorptivity and second regions with a second light absorptivity. The second light absorptivity is greater than the first light absorptivity. The first regions are disposed among the second regions.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: June 7, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yeon Hwa Lee, Joon Gu Lee, Jin Baek Choi
  • Publication number: 20160118630
    Abstract: The optical patterning mask had a protection layer on a light absorption layer. It prevents the light absorption layer from damaged by the cleaning gas when processing the used optical patterning mask for reuse. The protection layer may be made of the same material as bank layer or of material different from the bank layer. The bank layer defines the boundary of the area to be transferred in the transfer layer. The protection layer of the present invention can maintain longer the transfer efficiency of the optical patterning mask, even when the same mask is used repeatedly after cleaning, since the light absorption layer protected from cleaning process can maintain longer its heat conversion property.
    Type: Application
    Filed: April 6, 2015
    Publication date: April 28, 2016
    Inventors: Jin Baek CHOI, Yeon Hwa Lee, Joon Gu Lee