Patents by Inventor Seong-Jin Jeong

Seong-Jin 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).

  • Publication number: 20250098379
    Abstract: A display device includes a substrate, a light emitting device disposed on the substrate, a first layer disposed on the light emitting device, a high refractive index layer disposed on the first layer and overlapping the light emitting device, and a low refractive index layer disposed on the first layer and having a lower refractive index than the high refractive index layer, wherein a side surface of the high refractive index layer and a side surface of the low refractive index layer are in contact with each other, and to form an inclined surface, and an angle of the inclined surface is in a range of about 45 to about 80 degrees.
    Type: Application
    Filed: June 6, 2024
    Publication date: March 20, 2025
    Applicant: Samsung Display Co., LTD.
    Inventors: Jinouk SONG, Ilhoo PARK, Jin Sook BANG, Sang Hoon YIM, Seong Jin JEONG
  • Patent number: 12245456
    Abstract: A display device includes a first light emitting element, a second light emitting element, and a third light emitting element that are disposed on a substrate and emitting light of different colors, respectively; a first insulation layer disposed on the first light emitting element, the second light emitting element, and the third light emitting element, and including at least one opening; and a second insulation layer disposed on the first insulation layer, and disposed in the at least one opening, wherein a refractive index of the second insulation layer is higher than a refractive index of the first insulation layer, and the at least one opening overlaps at least one of the first light emitting element, the second light emitting element, and the third light emitting element in a plan view, and does not overlap at least another one in a plan view.
    Type: Grant
    Filed: March 15, 2022
    Date of Patent: March 4, 2025
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seong Jin Jeong, Jin Sook Bang, Sang Hoon Yim, Eun Jeong Hong, Kwan Hee Lee
  • Publication number: 20240237500
    Abstract: A display device according to an embodiment includes: a substrate; a transistor on the substrate; a pixel electrode electrically connected to the transistor; a pixel defining layer on the pixel electrode and having a first opening overlapping the pixel electrode; an emission layer on the pixel electrode; a common electrode on the pixel definition layer and the emission layer; an encapsulation layer on the common electrode; a light extraction pattern on the encapsulation layer and having a first refractive index; and a reflection control layer covering the light extraction pattern and having a second refractive index different from the first refractive index.
    Type: Application
    Filed: August 30, 2023
    Publication date: July 11, 2024
    Inventors: Jinouk SONG, Ilhoo PARK, Jin Sook BANG, Sang Hoon YIM, Seong Jin JEONG
  • Publication number: 20240164170
    Abstract: A display device includes a plurality of pixels including a first pixel representing green, where each of the pixels includes a light emitting element including an anode, a light emitting layer, and a cathode. The display device further includes a control layer disposed in a direction in which the light emitting element emits light and overlapping the first pixel, and a transmittance of the control layer at a first wavelength band, within a green wavelength band, is lower than a transmittance at a remaining visible light region such that a decrease in a front luminance spectrum by the control layer is greater than a decrease in a side luminance spectrum by the control layer.
    Type: Application
    Filed: October 20, 2023
    Publication date: May 16, 2024
    Inventors: Jin Sook BANG, Ilhoo PARK, Jinouk SONG, Sang Hoon YIM, Seong Jin JEONG
  • Publication number: 20240138242
    Abstract: A display device according to an embodiment includes: a substrate; a transistor on the substrate; a pixel electrode electrically connected to the transistor; a pixel defining layer on the pixel electrode and having a first opening overlapping the pixel electrode; an emission layer on the pixel electrode; a common electrode on the pixel definition layer and the emission layer; an encapsulation layer on the common electrode; a light extraction pattern on the encapsulation layer and having a first refractive index; and a reflection control layer covering the light extraction pattern and having a second refractive index different from the first refractive index.
    Type: Application
    Filed: August 29, 2023
    Publication date: April 25, 2024
    Inventors: Jinouk SONG, Ilhoo PARK, Jin Sook BANG, Sang Hoon YIM, Seong Jin JEONG
  • Publication number: 20230027280
    Abstract: A display device includes a first light emitting element, a second light emitting element, and a third light emitting element that are disposed on a substrate and emitting light of different colors, respectively; a first insulation layer disposed on the first light emitting element, the second light emitting element, and the third light emitting element, and including at least one opening; and a second insulation layer disposed on the first insulation layer, and disposed in the at least one opening, wherein a refractive index of the second insulation layer is higher than a refractive index of the first insulation layer, and the at least one opening overlaps at least one of the first light emitting element, the second light emitting element, and the third light emitting element in a plan view, and does not overlap at least another one in a plan view.
    Type: Application
    Filed: August 3, 2022
    Publication date: January 26, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: Seong Jin JEONG, Jin Sook BANG, Sang Hoon YIM, Eun Jeong HONG, Kwan Hee LEE
  • Publication number: 20230028269
    Abstract: A display device includes a first light emitting element, a second light emitting element, and a third light emitting element that are disposed on a substrate and emitting light of different colors, respectively; a first insulation layer disposed on the first light emitting element, the second light emitting element, and the third light emitting element, and including at least one opening; and a second insulation layer disposed on the first insulation layer, and disposed in the at least one opening, wherein a refractive index of the second insulation layer is higher than a refractive index of the first insulation layer, and the at least one opening overlaps at least one of the first light emitting element, the second light emitting element, and the third light emitting element in a plan view, and does not overlap at least another one in a plan view.
    Type: Application
    Filed: March 15, 2022
    Publication date: January 26, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: Seong Jin JEONG, Jin Sook BANG, Sang Hoon YIM, Eun Jeong HONG, Kwan Hee LEE
  • Patent number: 9831438
    Abstract: A compound, an organic light-emitting device, and a flat display apparatus, the compound being represented by Formula 1, below:
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: November 28, 2017
    Assignees: SAMSUNG DISPLAY CO., LTD., SEOUL NATIONAL UNIVERSITY INDUSTRY-UNIVERSITY R & DB FOUNDATION
    Inventors: Se-Hun Kim, Seong-Jin Jeong, Jong-In Hong, Mi-Kyung Kim, Chang-Woong Chu
  • Patent number: 9673400
    Abstract: An amine-based compound is represented by Formula 1: An organic light-emitting diode includes a first electrode, a second electrode, and an organic layer between the first electrode and the second electrode. The organic layer includes an emission layer and the amine-based compound represented by Formula 1. The OLED including the amine-based compound represented by Formula 1 has good color purity, low driving voltage, high efficiency, high brightness, and/or a long lifetime.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: June 6, 2017
    Assignees: Samsung Display Co., Ltd., SNU R&DB Foundation
    Inventors: Mi-Kyung Kim, Chang-Woong Chu, Sam-Il Kho, Dong-Hyun Kim, Kwan-Hee Lee, Jong-In Hong, Seong-Jin Jeong
  • Patent number: 9634257
    Abstract: A heterocyclic compound of Formula 1 below and an organic light-emitting device including the same are provided. X1 to X4, L1, L2, n, m, and Ar1 to, Ar4 in Formula 1 are defined as in the specification.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: April 25, 2017
    Assignees: Samsung Display Co., Ltd., Seoul National University R&DB Foundation
    Inventors: Se-Hun Kim, Mi-Kyung Kim, Jong-In Hong, Dong-Hyun Kim, Seong-Jin Jeong, Hwan-Hee Cho, Chang-Woong Chu
  • Publication number: 20160020400
    Abstract: A compound, an organic light-emitting device, and a flat display apparatus, the compound being represented by Formula 1, below:
    Type: Application
    Filed: December 9, 2014
    Publication date: January 21, 2016
    Applicant: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Se-Hun KIM, Seong-Jin JEONG, Jong-In HONG, Mi-Kyung KIM, Chang-Woong CHU
  • Publication number: 20150034917
    Abstract: A heterocyclic compound of Formula 1 below and an organic light-emitting device including the same are provided. X1 to X4, L1, L2, n, m, and Ar1 to, Ar4 in Formula 1 are defined as in the specification.
    Type: Application
    Filed: March 24, 2014
    Publication date: February 5, 2015
    Applicants: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION, SAMSUNG DISPLAY CO., LTD.
    Inventors: Se-Hun Kim, Mi-Kyung Kim, Jong-In Hong, Dong-Hyun Kim, Seong-Jin Jeong, Hwan-Hee Cho, Chang-Woong Chu
  • Publication number: 20140374717
    Abstract: An amine-based compound is represented by Formula 1: An organic light-emitting diode includes a first electrode, a second electrode, and an organic layer between the first electrode and the second electrode. The organic layer includes an emission layer and the amine-based compound represented by Formula 1. The OLED including the amine-based compound represented by Formula 1 has good color purity, low driving voltage, high efficiency, high brightness, and/or a long lifetime.
    Type: Application
    Filed: June 18, 2014
    Publication date: December 25, 2014
    Inventors: Mi-Kyung Kim, Chang-Woong Chu, Sam-Il Kho, Dong-Hyun Kim, Kwan-Hee Lee, Jong-In Hong, Seong-Jin Jeong