Patents by Inventor Jung-Hwan Yi

Jung-Hwan Yi 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: 20250107407
    Abstract: A display device that includes a light emitting element layer disposed on a substrate, a thin-film encapsulation layer disposed on the light emitting element layer, a wavelength conversion layer disposed on the thin-film encapsulation layer and including a bank which defines light emitting areas and a non-light emitting area, a dam structure disposed on the wavelength conversion layer and overlapping at least one of the light emitting areas, a filling layer disposed on the wavelength conversion layer and disposed between portions of the dam structure, a color filter layer disposed on the dam structure, and a counter substrate disposed on the color filter layer, wherein the filling layer overlaps ones of the light emitting areas not overlapping the dam structure.
    Type: Application
    Filed: April 22, 2024
    Publication date: March 27, 2025
    Applicant: Samsung Display Co., LTD.
    Inventors: Soo Dong KIM, Jung Hwan YI, Ji Eun KO, Rae Young KIM, Yo Han KIM, Je Won YOO, Su Min JUNG, Hye Young HAN
  • Publication number: 20250040410
    Abstract: A display device according to an embodiment includes a substrate including a first light emitting area, a second light emitting area, and a third light emitting area, a transistor disposed on the substrate, a light emitting element connected to the transistor, and an encapsulation layer disposed on the light emitting element, a partition wall disposed on the encapsulation layer, and a scattering layer disposed on the partition wall, wherein the scattering layer is continuously disposed on the entire surface of the substrate, and the scattering layer includes scatterers having different concentration in the first light emitting area, the second light emitting area, and the third light emitting area.
    Type: Application
    Filed: January 8, 2024
    Publication date: January 30, 2025
    Inventors: Soo Dong KIM, Jung Hwan YI, Jongmin OK
  • Patent number: 12191423
    Abstract: A display device includes: a substrate having a display area and a non-display area; and a pixel in each of a pixel area in the display area. Each of the pixels includes: an insulating layer on the substrate and having an opening; first and second electrodes on the insulating layer and spaced apart from each other; a plurality of light emitting elements in the opening; a first contact electrode electrically connecting one end of the light emitting elements and the first electrode to each other; a second contact electrode electrically connecting another end of the light emitting elements and the second electrode to each other; a first insulating pattern on the first contact electrode; and a second insulating pattern on the second contact electrode. The first insulating pattern and the second insulating pattern are on the same layer and spaced apart from each other.
    Type: Grant
    Filed: August 18, 2023
    Date of Patent: January 7, 2025
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seung Min Lee, Jin Taek Kim, Baek Hyeon Lim, Jin Yeong Kim, Kyung Tae Chae, Jung Hwan Yi, Hee Keun Lee
  • Patent number: 12125834
    Abstract: A display device includes a first substrate; a first conductive pattern, a first voltage line and a second voltage line on the first substrate; an insulating layer on the first conductive pattern and the second voltage line; a plurality of first light-emitting elements on the insulating layer; a first electrode on the insulating layer and connected to the first conductive pattern, the first electrode overlapping the first voltage line; and a second electrode on the insulating layer and connected to the second voltage line, wherein the plurality of first light-emitting elements are in contact with the first electrode and the second electrode, and wherein a part of an upper surface of the first electrode that overlaps the first conductive pattern and a part of the upper surface of the first electrode that overlaps the first voltage line are located on the same plane.
    Type: Grant
    Filed: July 15, 2021
    Date of Patent: October 22, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Bek Hyun Lim, Jung-Hwan Yi, Hee Keun Lee
  • Patent number: 12002790
    Abstract: A pixel includes a first electrode and a second electrode facing each other, an insulating layer on the first and second electrodes, a plurality of light-emitting elements located on the insulating layer between the first electrode and the second electrode, a first contact electrode electrically connected to the first electrode, and a second contact electrode electrically connected to the second electrode. Here, a first gap having a constant width in a first direction and a second gap having a width in the first direction that gradually changes along a second direction are located between the first electrode and the second electrode or between the first contact electrode and the second contact electrode.
    Type: Grant
    Filed: March 23, 2021
    Date of Patent: June 4, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hee Keun Lee, Jin Taek Kim, Seung Min Lee, Jung Hwan Yi, Baek Hyeon Lim, Kyung Tae Chae
  • Patent number: 11870025
    Abstract: A display device includes a first substrate, a wire pad in a pad area, first banks in a display area, electrodes on the first banks, a pad electrode base layer on the wire pad, having a greater width than the wire pad, and covering sides of the wire pad, a first insulating layer covering parts of the electrodes and part of the pad electrode base layer, light-emitting elements on the first insulating layer in the display area, respective ends of the light-emitting elements being on different electrodes, contact electrodes on the electrodes and contacting first ends of the light-emitting elements, and a pad electrode upper layer on the first insulating layer in the pad area and directly contacting the pad electrode base layer, wherein the pad electrode base layer includes the same material as the electrodes, and the pad electrode upper layer includes the same material as the contact electrodes.
    Type: Grant
    Filed: June 13, 2022
    Date of Patent: January 9, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin Taek Kim, Seung Min Lee, Jung Hwan Yi, Hee Keun Lee, Bek Hyun Lim, Kyung Tae Chae
  • Patent number: 11871598
    Abstract: A display device and a manufacturing method thereof are provided. A display device includes: a substrate; a first electrode and a second electrode on the substrate, the first electrode and the second electrode being arranged on a same layer to be spaced apart from each other; a first insulating layer on the first electrode and the second electrode; and a light emitting element on the first insulating layer. The first insulating layer includes a groove concave toward the substrate, and the light emitting element is in the groove.
    Type: Grant
    Filed: May 10, 2021
    Date of Patent: January 9, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Baek Hyeon Lim, Jin Taek Kim, Seung Min Lee, Jung Hwan Yi, Hee Keun Lee, Kyung Tae Chae
  • Publication number: 20230403887
    Abstract: A display device includes a first base substrate including a light-emitting area and a non-light-emitting area around the light-emitting area, a wavelength conversion pattern on the first base substrate in the light-emitting area, and a light-emitting element layer on the wavelength conversion pattern. The light-emitting element layer includes a pixel electrode including a first conductive pattern between the wavelength conversion pattern and the first base substrate, and a second conductive pattern on the wavelength conversion pattern and spaced apart from the first conductive pattern, an organic light-emitting layer on the second conductive pattern, and a common electrode on the organic light-emitting layer.
    Type: Application
    Filed: August 28, 2023
    Publication date: December 14, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: Seung In BAEK, Gun Shik KIM, Mi Ra GWON, Young Jun YOO, Young Eun PARK, Jung Hwan YI, Su Jin CHOI, Youn Ho HAN, Jong Beom HONG
  • Publication number: 20230395755
    Abstract: A display device includes: a substrate having a display area and a non-display area; and a pixel in each of a pixel area in the display area. Each of the pixels includes: an insulating layer on the substrate and having an opening; first and second electrodes on the insulating layer and spaced apart from each other; a plurality of light emitting elements in the opening; a first contact electrode electrically connecting one end of the light emitting elements and the first electrode to each other; a second contact electrode electrically connecting another end of the light emitting elements and the second electrode to each other; a first insulating pattern on the first contact electrode; and a second insulating pattern on the second contact electrode. The first insulating pattern and the second insulating pattern are on the same layer and spaced apart from each other.
    Type: Application
    Filed: August 18, 2023
    Publication date: December 7, 2023
    Inventors: Seung Min LEE, Jin Taek KIM, Baek Hyeon LIM, Jin Yeong KIM, Kyung Tae CHAE, Jung Hwan YI, Hee Keun LEE
  • Publication number: 20230352639
    Abstract: A display device includes a substrate including a plurality of pixels, a first electrode and a second electrode disposed on the substrate and spaced apart from each other, an insulating reflective layer disposed on the first electrode and the second electrode, and a plurality of light emitting elements disposed between the first electrode and the second electrode and electrically connected to the first electrode and the second electrode, wherein the insulating reflective layer includes a plurality of first layers and the plurality of second layers having different refractive indexes, and the the plurality of first layers and the the plurality of second layers are alternately stacked with each other.
    Type: Application
    Filed: July 8, 2021
    Publication date: November 2, 2023
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jung Hwan YI, Jin Taek KIM, Yong Sub SHIM, Seung Min LEE, Hee Keun LEE, Baek Hyeon LIM, Kyung Tae CHAE, Hae Ju YUN, Seung Jin CHU
  • Patent number: 11756522
    Abstract: One aspect of the present disclosure relates to a noise masking method through variable masking sound level conversion, capable of adjusting an interval for changing a level of a masking sound for masking noise to an optimal interval so that the masking sound is not perceived as noise, by determining a fluctuation trend of a level of audible noise and adjusting the interval for changing the level of the masking sound for masking the noise into an optimal environment through a control unit.
    Type: Grant
    Filed: May 17, 2022
    Date of Patent: September 12, 2023
    Assignee: Aquris Co., Ltd
    Inventors: Jung-hwan Yi, Chan-goo Kang, Jong-Bo Kim
  • Patent number: 11742460
    Abstract: A display device includes: a substrate having a display area and a non-display area; and a pixel in each of a pixel area in the display area. Each of the pixels includes: an insulating layer on the substrate and having an opening; first and second electrodes on the insulating layer and spaced apart from each other; a plurality of light emitting elements in the opening; a first contact electrode electrically connecting one end of the light emitting elements and the first electrode to each other; a second contact electrode electrically connecting another end of the light emitting elements and the second electrode to each other; a first insulating pattern on the first contact electrode; and a second insulating pattern on the second contact electrode. The first insulating pattern and the second insulating pattern are on the same layer and spaced apart from each other.
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: August 29, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seung Min Lee, Jin Taek Kim, Baek Hyeon Lim, Jin Yeong Kim, Kyung Tae Chae, Jung Hwan Yi, Hee Keun Lee
  • Patent number: 11744114
    Abstract: A display device includes a first base substrate including a light-emitting area and a non-light-emitting area around the light-emitting area, a wavelength conversion pattern on the first base substrate in the light-emitting area, and a light-emitting element layer on the wavelength conversion pattern. The light-emitting element layer includes a pixel electrode including a first conductive pattern between the wavelength conversion pattern and the first base substrate, and a second conductive pattern on the wavelength conversion pattern and spaced apart from the first conductive pattern, an organic light-emitting layer on the second conductive pattern, and a common electrode on the organic light-emitting layer.
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: August 29, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seung In Baek, Gun Shik Kim, Mi Ra Gwon, Young Jun Yoo, Young Eun Park, Jung Hwan Yi, Su Jin Choi, Youn Ho Han, Jong Beom Hong
  • Publication number: 20230187584
    Abstract: Provided is a display device. The display device comprises: a first substrate; a first electrode and a second electrode arranged spaced apart from each other on the first substrate; a plurality of light-emitting diodes arranged on the first electrode and the second electrode; a plurality of contact electrodes arranged on the first electrode or the second electrode and being in contact with the light-emitting diodes, wherein the contact electrodes comprise a first contact electrode arranged on the first electrode, a second contact electrode arranged on the second electrode, a third contact electrode facing the first contact electrode in a second direction, and a fourth contact electrode facing the second contact electrode in the second direction, and include an electrode connection unit connected to the third contact electrode and the fourth contact electrode and arranged to surround the second contact electrode.
    Type: Application
    Filed: July 28, 2020
    Publication date: June 15, 2023
    Inventors: Jin Taek KIM, Seung Min LEE, Jung Hwan YI, Hee Keun LEE, Bek Hyun LIM, Kyung Tae CHAE
  • Publication number: 20220375447
    Abstract: One aspect of the present disclosure relates to a noise masking method through variable masking sound level conversion, capable of adjusting an interval for changing a level of a masking sound for masking noise to an optimal interval so that the masking sound is not perceived as noise, by determining a fluctuation trend of a level of audible noise and adjusting the interval for changing the level of the masking sound for masking the noise into an optimal environment through a control unit.
    Type: Application
    Filed: May 17, 2022
    Publication date: November 24, 2022
    Inventors: Jung-hwan YI, Chan-goo KANG, Jong-bo KIM
  • Publication number: 20220310895
    Abstract: A display device includes a first substrate, a wire pad in a pad area, first banks in a display area, electrodes on the first banks, a pad electrode base layer on the wire pad, having a greater width than the wire pad, and covering sides of the wire pad, a first insulating layer covering parts of the electrodes and part of the pad electrode base layer, light-emitting elements on the first insulating layer in the display area, respective ends of the light-emitting elements being on different electrodes, contact electrodes on the electrodes and contacting first ends of the light-emitting elements, and a pad electrode upper layer on the first insulating layer in the pad area and directly contacting the pad electrode base layer, wherein the pad electrode base layer includes the same material as the electrodes, and the pad electrode upper layer includes the same material as the contact electrodes.
    Type: Application
    Filed: June 13, 2022
    Publication date: September 29, 2022
    Inventors: Jin Taek KIM, Seung Min LEE, Jung Hwan YI, Hee Keun LEE, Bek Hyun LIM, Kyung Tae CHAE
  • Patent number: 11362250
    Abstract: A display device includes a first substrate, a wire pad in a pad area, first banks in a display area, electrodes on the first banks, a pad electrode base layer on the wire pad, having a greater width than the wire pad, and covering sides of the wire pad, a first insulating layer covering parts of the electrodes and part of the pad electrode base layer, light-emitting elements on the first insulating layer in the display area, respective ends of the light-emitting elements being on different electrodes, contact electrodes on the electrodes and contacting first ends of the light-emitting elements, and a pad electrode upper layer on the first insulating layer in the pad area and directly contacting the pad electrode base layer, wherein the pad electrode base layer includes the same material as the electrodes, and the pad electrode upper layer includes the same material as the contact electrodes.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: June 14, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin Taek Kim, Seung Min Lee, Jung Hwan Yi, Hee Keun Lee, Bek Hyun Lim, Kyung Tae Chae
  • Publication number: 20220020734
    Abstract: A display device includes a first substrate; a first conductive pattern, a first voltage line and a second voltage line on the first substrate; an insulating layer on the first conductive pattern and the second voltage line; a plurality of first light-emitting elements on the insulating layer; a first electrode on the insulating layer and connected to the first conductive pattern, the first electrode overlapping the first voltage line; and a second electrode on the insulating layer and connected to the second voltage line, wherein the plurality of first light-emitting elements are in contact with the first electrode and the second electrode, and wherein a part of an upper surface of the first electrode that overlaps the first conductive pattern and a part of the upper surface of the first electrode that overlaps the first voltage line are located on the same plane.
    Type: Application
    Filed: July 15, 2021
    Publication date: January 20, 2022
    Inventors: Bek Hyun LIM, Jung-Hwan YI, Hee Keun LEE
  • Publication number: 20210384169
    Abstract: A pixel includes a first electrode and a second electrode facing each other, an insulating layer on the first and second electrodes, a plurality of light-emitting elements located on the insulating layer between the first electrode and the second electrode, a first contact electrode electrically connected to the first electrode, and a second contact electrode electrically connected to the second electrode. Here, a first gap having a constant width in a first direction and a second gap having a width in the first direction that gradually changes along a second direction are located between the first electrode and the second electrode or between the first contact electrode and the second contact electrode.
    Type: Application
    Filed: March 23, 2021
    Publication date: December 9, 2021
    Inventors: Hee Keun LEE, Jin Taek KIM, Seung Min LEE, Jung Hwan YI, Baek Hyeon LIM, Kyung Tae CHAE
  • Publication number: 20210367183
    Abstract: A display device and a manufacturing method thereof are provided. A display device includes: a substrate; a first electrode and a second electrode on the substrate, the first electrode and the second electrode being arranged on a same layer to be spaced apart from each other; a first insulating layer on the first electrode and the second electrode; and a light emitting element on the first insulating layer. The first insulating layer includes a groove concave toward the substrate, and the light emitting element is in the groove.
    Type: Application
    Filed: May 10, 2021
    Publication date: November 25, 2021
    Inventors: Baek Hyeon LIM, Jin Taek KIM, Seung Min LEE, Jung Hwan YI, Hee Keun LEE, Kyung Tae CHAE