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).
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Patent number: 11721667Abstract: 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: GrantFiled: July 29, 2021Date of Patent: August 8, 2023Assignee: LG Display Co., Ltd.Inventors: Kihan Kim, Hyokang Lee
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Publication number: 20230216006Abstract: 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: ApplicationFiled: October 13, 2022Publication date: July 6, 2023Inventors: Hyokang LEE, MoonBae GEE
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Patent number: 11605803Abstract: 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: GrantFiled: April 16, 2021Date of Patent: March 14, 2023Assignee: LG DISPLAY CO., LTD.Inventors: Kihan Kim, Hyokang Lee, Hohyun Keum
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Patent number: 11436950Abstract: 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: GrantFiled: July 8, 2020Date of Patent: September 6, 2022Assignee: LG Display Co., Ltd.Inventors: Kihan Kim, Hyokang Lee
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Publication number: 20220246870Abstract: 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: ApplicationFiled: April 25, 2022Publication date: August 4, 2022Inventors: Hyokang Lee, Kihan Kim
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Patent number: 11348990Abstract: 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: GrantFiled: October 29, 2020Date of Patent: May 31, 2022Assignee: LG DISPLAY CO., LTD.Inventors: Kihan Kim, Hyokang Lee
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Publication number: 20220165716Abstract: 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: ApplicationFiled: November 22, 2021Publication date: May 26, 2022Inventors: Hyowon KWON, KiHan KIM, Hyokang LEE, JunHyuk SONG
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Patent number: 11342520Abstract: 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: GrantFiled: February 19, 2020Date of Patent: May 24, 2022Assignee: LG Display Co., Ltd.Inventors: Hyokang Lee, Kihan Kim
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Publication number: 20220158057Abstract: 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: ApplicationFiled: November 16, 2021Publication date: May 19, 2022Inventors: JunHyuk SONG, Hyokang LEE, Hyowon KWON, MoonBae GEE, KiHan KIM
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Patent number: 11328629Abstract: 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: GrantFiled: July 7, 2020Date of Patent: May 10, 2022Assignee: LG Display Co., Ltd.Inventors: MyoungHo Lee, Kihan Kim, Hyokang Lee
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Patent number: 11283042Abstract: 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: GrantFiled: September 19, 2018Date of Patent: March 22, 2022Assignee: LG DISPLAY CO., LTD.Inventors: Hyokang Lee, MinGu Cho, SangHoon Lee
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Patent number: 11271179Abstract: 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: GrantFiled: July 19, 2019Date of Patent: March 8, 2022Assignee: LG DISPLAY CO., LTD.Inventors: Kihan Kim, Hyokang Lee
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Publication number: 20210358887Abstract: 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: ApplicationFiled: July 29, 2021Publication date: November 18, 2021Inventors: Kihan KIM, Hyokang LEE
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Patent number: 11107792Abstract: 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: GrantFiled: November 19, 2019Date of Patent: August 31, 2021Assignee: LG DISPLAY CO., LTD.Inventors: Kihan Kim, Hyokang Lee
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Publication number: 20210234135Abstract: 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: ApplicationFiled: April 16, 2021Publication date: July 29, 2021Applicant: LG Display Co., Ltd.Inventors: Kihan KIM, Hyokang LEE, Hohyun KEUM
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Publication number: 20210192988Abstract: 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: ApplicationFiled: December 11, 2020Publication date: June 24, 2021Inventors: KiHan KIM, Hyokang LEE, MyungSub LIM, Sujin HAM, Hyowon KWON
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Patent number: 11018324Abstract: 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: GrantFiled: October 4, 2019Date of Patent: May 25, 2021Assignee: LG DISPLAY CO., LTD.Inventors: Kihan Kim, Hyokang Lee, Hohyun Keum
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Patent number: 10985347Abstract: 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: GrantFiled: December 7, 2018Date of Patent: April 20, 2021Assignee: LG Display Co., Ltd.Inventors: Miryn Seong, Hyokang Lee
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Publication number: 20210050404Abstract: 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: ApplicationFiled: October 29, 2020Publication date: February 18, 2021Applicant: LG Display Co., Ltd.Inventors: Kihan KIM, Hyokang LEE
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Publication number: 20210027671Abstract: 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: ApplicationFiled: July 7, 2020Publication date: January 28, 2021Inventors: MyoungHo LEE, Kihan KIM, Hyokang LEE