Patents by Inventor Hyokang LEE

Hyokang 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).

  • Patent number: 11721667
    Abstract: The present disclosure discloses a stretchable display device, including a lower substrate as a first substrate, the lower substrate having an active area and a non-active area surrounding the active area; a plurality of second substrates positioned on the lower substrate and horizontally separated from each other; a transistor disposed on the second substrate; a plurality of light emitting elements disposed above the transistor and above the plurality of second substrates; a plurality of connecting substrate positioned between the plurality of second substrates to interconnect two adjacent second substrates. With this structure of the display, especially to the structure of the connecting substrate and the connection line, the stress applied to the stretchable display the connecting lines may be attenuated.
    Type: Grant
    Filed: July 29, 2021
    Date of Patent: August 8, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Kihan Kim, Hyokang Lee
  • Publication number: 20230216006
    Abstract: According to aspects of the present disclosure, a display device includes a stretchable lower substrate; a pattern layer which is disposed on the lower substrate and is configured by a plurality of plate patterns and a plurality of line patterns; a plurality of pixels which is disposed on each of the plurality of plate patterns; and a plurality of connection lines which is disposed on each of the plurality of line patterns and connects the plurality of pixels, each of the plurality of pixels includes a light emitting diode and a driving element which drives the light emitting diode, the light emitting diode is divided into an emission area in which light is emitted and a non-emission area in which light is not emitted, a color conversion layer is disposed below the emission area of the light emitting diode, and a color transmission layer is disposed on the emission area of the light emitting diode, thereby improving the luminous efficiency of the light emitting diode.
    Type: Application
    Filed: October 13, 2022
    Publication date: July 6, 2023
    Inventors: Hyokang LEE, MoonBae GEE
  • Patent number: 11605803
    Abstract: A stretchable display device comprises a lower substrate, a plurality of island substrates disposed on the lower substrate and spaced apart from each other, a plurality of display elements disposed on the plurality of island substrates, a plurality of connecting lines disposed between each of the plurality of island substrates, an upper substrate disposed on the lower substrate, the plurality of display elements and the plurality of connecting lines, and a polarizing layer disposed on the upper substrate and including a phase delay layer on the upper substrate and a linear polarizing plate on the phase delay layer, wherein the phase delay layer includes a first base polymer, wherein the linear polarizing plate includes a second base polymer, and wherein the first and second base polymers include a same material as the upper substrate.
    Type: Grant
    Filed: April 16, 2021
    Date of Patent: March 14, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Kihan Kim, Hyokang Lee, Hohyun Keum
  • Patent number: 11436950
    Abstract: A stretchable display device according to embodiments of the present disclosure includes a plurality of first substrates in which a plurality of pixels are defined, the plurality of first substrates being spaced apart from each other; a plurality of second substrates disposed between first substrates adjacent to each other among the plurality of first substrates to connect the adjacent first substrates; a lower substrate on which a plurality of first areas, a plurality of second areas, and a plurality of third areas excluding the plurality of first areas and the plurality of second areas are defined, the plurality of first substrates being disposed in the plurality of first areas, and the plurality of second substrates being disposed in the plurality of second areas; and a plurality of align keys disposed in a portion of the plurality of third areas and formed of an elastic material.
    Type: Grant
    Filed: July 8, 2020
    Date of Patent: September 6, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Kihan Kim, Hyokang Lee
  • Publication number: 20220246870
    Abstract: A stretchable display devices includes a flexible substrate. A plurality of first substrates and a plurality of second substrates are disposed on the substrate. The plurality of first substrates are spaced from each other and the plurality of second substrates, and the plurality of second substrates are spaced from each other. A plurality of connection supports are coupled to the plurality of first and second substrates. Connection lines extend on the plurality of connection supports to form an electrical connection between the plurality of first substrates and the plurality of second substrates. A distance between one of the plurality of second substrates and a corresponding outer one of the plurality of first substrates is greater than a distance between the plurality of first substrates to reduce stress on the plurality of second substrates during bending or stretching of the display device.
    Type: Application
    Filed: April 25, 2022
    Publication date: August 4, 2022
    Inventors: Hyokang Lee, Kihan Kim
  • Patent number: 11348990
    Abstract: A stretchable display device comprises a lower substrate; a plurality of island substrates spaced apart from each other and disposed on the lower substrate; a plurality of pixels defined on the plurality of island substrates; a plurality of base polymers disposed between adjacent island substrates of the plurality of island substrates; and a plurality of conductive particles distributed in the base polymer and electrically connecting a plurality of pads disposed on the adjacent island substrates.
    Type: Grant
    Filed: October 29, 2020
    Date of Patent: May 31, 2022
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Kihan Kim, Hyokang Lee
  • Publication number: 20220165716
    Abstract: According to an aspect of the present disclosure, the display device includes: a stretchable lower substrate and a plurality of first substrates disposed on the lower substrate. The display device also includes a plurality of second substrates coupling first substrates adjacent to each other among the plurality of first substrates. The display device further includes a plurality of pixels disposed on the plurality of first substrates. The display device also includes a plurality of connection lines disposed on the plurality of second substrates and coupling the plurality of pixels. The display device further includes a protection layer disposed on each of the plurality of pixels.
    Type: Application
    Filed: November 22, 2021
    Publication date: May 26, 2022
    Inventors: Hyowon KWON, KiHan KIM, Hyokang LEE, JunHyuk SONG
  • Patent number: 11342520
    Abstract: A stretchable display devices includes a flexible substrate. A plurality of first substrates and a plurality of second substrates are disposed on the substrate. The plurality of first substrates are spaced from each other and the plurality of second substrates, and the plurality of second substrates are spaced from each other. A plurality of connection supports are coupled to the plurality of first and second substrates. Connection lines extend on the plurality of connection supports to form an electrical connection between the plurality of first substrates and the plurality of second substrates. A distance between one of the plurality of second substrates and a corresponding outer one of the plurality of first substrates is greater than a distance between the plurality of first substrates to reduce stress on the plurality of second substrates during bending or stretching of the display device.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: May 24, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Hyokang Lee, Kihan Kim
  • Publication number: 20220158057
    Abstract: According to an aspect of the present disclosure, the display device includes a lower substrate and a plurality of pixel substrates disposed on the lower substrate. The display device also includes a plurality of transistors disposed on the plurality of pixel substrates and a planarization layer disposed on the plurality of pixel substrates to cover upper portions of the plurality of transistors. The display device further includes a plurality of individual connection pads and a common connection pad disposed on the planarization layer. The display device also includes a plurality of light emitting diodes disposed on the plurality of individual connection pads and the common connection pad. At least one of the plurality of individual connection pads and the common connection pad may have a multilayer structure.
    Type: Application
    Filed: November 16, 2021
    Publication date: May 19, 2022
    Inventors: JunHyuk SONG, Hyokang LEE, Hyowon KWON, MoonBae GEE, KiHan KIM
  • Patent number: 11328629
    Abstract: Provided is a display device. The display device includes a stretchable display device. The stretchable display device includes a lower substrate including a display area and a non-display area. The stretchable display device further includes a plurality of lower connection lines on the lower substrate. The stretchable display device further includes a plurality of first substrates disposed on the display area, the plurality of first substrates defines sub pixels, and a modulus of the plurality of first substrates is larger than a modulus of the lower substrate. The stretchable display device further includes a plurality of connection substrates connecting adjacent first substrates among the plurality of first substrates. The stretchable display device further includes a plurality of upper connection lines disposed on the plurality of connection substrates. Therefore, various connection lines are configured in a limited space to improve an image quality of a stretchable display device.
    Type: Grant
    Filed: July 7, 2020
    Date of Patent: May 10, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: MyoungHo Lee, Kihan Kim, Hyokang Lee
  • Patent number: 11283042
    Abstract: Disclosed is a display apparatus including a transistor substrate including an emission part overlapping a plurality of organic light emitting devices and a peripheral part surrounding the emission part, a plurality of color filters disposed to respectively correspond to the plurality of organic light emitting devices at the emission part, and a plurality of spacer members spaced apart from one another and disposed to surround the plurality of organic light emitting devices at the peripheral part. Accordingly, the display apparatus is protected from an external impact, and heat transferred to the inside of the display apparatus is easily dissipated to the outside.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: March 22, 2022
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Hyokang Lee, MinGu Cho, SangHoon Lee
  • Patent number: 11271179
    Abstract: A stretchable display device comprises a lower substrate; a plurality of island substrates where a plurality of pixels is defined, spaced apart from each other and disposed on the lower substrate and; a plurality of connecting lines electrically connected to a plurality of pads disposed on adjacent island substrates among the plurality of island substrates, wherein the plurality of connecting lines has a curved shape; and a plurality of conductive reinforcing members in contact with a portion of each connecting line.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: March 8, 2022
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Kihan Kim, Hyokang Lee
  • Publication number: 20210358887
    Abstract: The present disclosure discloses a stretchable display device, including a lower substrate as a first substrate, the lower substrate having an active area and a non-active area surrounding the active area; a plurality of second substrates positioned on the lower substrate and horizontally separated from each other; a transistor disposed on the second substrate; a plurality of light emitting elements disposed above the transistor and above the plurality of second substrates; a plurality of connecting substrate positioned between the plurality of second substrates to interconnect two adjacent second substrates. With this structure of the display, especially to the structure of the connecting substrate and the connection line, the stress applied to the stretchable display the connecting lines may be attenuated.
    Type: Application
    Filed: July 29, 2021
    Publication date: November 18, 2021
    Inventors: Kihan KIM, Hyokang LEE
  • Patent number: 11107792
    Abstract: The present disclosure discloses a stretchable display device, including a lower substrate as a first substrate, the lower substrate having an active area and a non-active area surrounding the active area; a plurality of second substrates positioned on the lower substrate and horizontally separated from each other; a transistor disposed on the second substrate; a plurality of light emitting elements disposed above the transistor and above the plurality of second substrates; a plurality of connecting substrate positioned between the plurality of second substrates to interconnect two adjacent second substrates. With this structure of the display, especially to the structure of the connecting substrate and the connection line, the stress applied to the stretchable display the connecting lines may be attenuated.
    Type: Grant
    Filed: November 19, 2019
    Date of Patent: August 31, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Kihan Kim, Hyokang Lee
  • Publication number: 20210234135
    Abstract: A stretchable display device comprises a lower substrate, a plurality of island substrates disposed on the lower substrate and spaced apart from each other, a plurality of display elements disposed on the plurality of island substrates, a plurality of connecting lines disposed between each of the plurality of island substrates, an upper substrate disposed on the lower substrate, the plurality of display elements and the plurality of connecting lines, and a polarizing layer disposed on the upper substrate and including a phase delay layer on the upper substrate and a linear polarizing plate on the phase delay layer, wherein the phase delay layer includes a first base polymer, wherein the linear polarizing plate includes a second base polymer, and wherein the first and second base polymers include a same material as the upper substrate.
    Type: Application
    Filed: April 16, 2021
    Publication date: July 29, 2021
    Applicant: LG Display Co., Ltd.
    Inventors: Kihan KIM, Hyokang LEE, Hohyun KEUM
  • Publication number: 20210192988
    Abstract: The present disclosure provides a stretchable display device. The stretchable display device including a plurality of first substrates which is disposed on a lower substrate to be spaced apart from each other and includes at least one pixel. The display device includes a plurality of connection substrates which connects adjacent first substrates among the plurality of first substrates. The display device includes a plurality of connection lines which electrically connects pads disposed on the plurality of adjacent first substrates and is disposed on side surfaces of the plurality of connection substrates. Therefore, a resistance of the connection line may be reduced or minimized.
    Type: Application
    Filed: December 11, 2020
    Publication date: June 24, 2021
    Inventors: KiHan KIM, Hyokang LEE, MyungSub LIM, Sujin HAM, Hyowon KWON
  • Patent number: 11018324
    Abstract: A stretchable display device includes a structure that can minimize damage to a polarizing layer when the stretchable display device is stretched and reduce visibility of external light being reflected to a user by using a polarizing plate having a stretchable characteristic, and the thickness of the stretchable display can be reduced because components disposed under the upper substrate and the polarizing layer are configured to include the same material as the polarizing layer that can be easily stretched in a plurality of directions by alternately disposing stretchable polarizing layers in different directions.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: May 25, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Kihan Kim, Hyokang Lee, Hohyun Keum
  • Patent number: 10985347
    Abstract: A display apparatus includes a buffer layer provided on a substrate and having a plurality of concave portions and a black matrix disposed at each of the plurality of concave portions, whereby loss of the black matrix may be prevented and a filling material may be uniformly filled when a transistor substrate and a color filter substrate are bonded.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: April 20, 2021
    Assignee: LG Display Co., Ltd.
    Inventors: Miryn Seong, Hyokang Lee
  • Publication number: 20210050404
    Abstract: A stretchable display device comprises a lower substrate; a plurality of island substrates spaced apart from each other and disposed on the lower substrate; a plurality of pixels defined on the plurality of island substrates; a plurality of base polymers disposed between adjacent island substrates of the plurality of island substrates; and a plurality of conductive particles distributed in the base polymer and electrically connecting a plurality of pads disposed on the adjacent island substrates.
    Type: Application
    Filed: October 29, 2020
    Publication date: February 18, 2021
    Applicant: LG Display Co., Ltd.
    Inventors: Kihan KIM, Hyokang LEE
  • Publication number: 20210027671
    Abstract: Provided is a display device. The display device includes a stretchable display device. The stretchable display device includes a lower substrate including a display area and a non-display area. The stretchable display device further includes a plurality of lower connection lines on the lower substrate. The stretchable display device further includes a plurality of first substrates disposed on the display area, the plurality of first substrates defines sub pixels, and a modulus of the plurality of first substrates is larger than a modulus of the lower substrate. The stretchable display device further includes a plurality of connection substrates connecting adjacent first substrates among the plurality of first substrates. The stretchable display device further includes a plurality of upper connection lines disposed on the plurality of connection substrates. Therefore, various connection lines are configured in a limited space to improve an image quality of a stretchable display device.
    Type: Application
    Filed: July 7, 2020
    Publication date: January 28, 2021
    Inventors: MyoungHo LEE, Kihan KIM, Hyokang LEE