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公开(公告)号：US11921929B2
公开(公告)日：2024-03-05
申请号：US18106650
申请日：2023-02-07
Inventor： Sung Ryul Yun , Seung Koo Park , Inwook Hwang , Seongcheol Mun , Mi Jeong Choi
CPC classification number: G06F3/016 , F03G7/016 , G05D5/02 , H04N13/393 , G06F1/163 , G06F1/1652 , G06V40/1306 , G09B21/003
Abstract: Provided is a stereoscopic surface display device including a stereoscopic display unit having a cell area, wherein the stereoscopic display unit includes a first flexible layer, a first optical waveguide and a first optical output unit in the first flexible layer, wherein the first optical output unit are disposed in the cell area, a first light source disposed on a side of the stereoscopic display unit, wherein the first optical waveguide connects the first light source and the first optical output unit, a first photothermal response layer on the first flexible layer, wherein the first photothermal response layer is configured to receive output light emitted from the first optical output unit and emit thermal energy, and a shape deformation layer on the first photothermal response layer, wherein the shape deformation layer is configured to generate bending deformation by receiving the thermal energy from the first photothermal response layer.
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公开(公告)号：US11286964B2
公开(公告)日：2022-03-29
申请号：US17116665
申请日：2020-12-09
Inventor： Seongcheol Mun , Sungryul Yun , Jeong Muk Lim , Inwook Hwang
Abstract: Provided is a soft actuator. The soft actuator includes a first bistable polymer layer, a second bistable polymer layer on the first bistable polymer layer, a first flexible electrode layer on an upper surface of the second bistable polymer layer, a second flexible electrode layer between the first bistable polymer layer and the second bistable polymer layer, a first light absorption heating layer disposed on the first flexible electrode layer and configured to increase a temperature when light is absorbed, and a first voltage supply unit, wherein the first voltage supply unit is electrically connected to the first flexible electrode layer and the second flexible electrode layer.
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公开(公告)号：US20180263839A1
公开(公告)日：2018-09-20
申请号：US15898154
申请日：2018-02-15
Inventor： Jeong Mook Lim , Sung Ryul Yun , Ki-Uk Kyung , Seongcheol Mun
IPC: A61H3/00
CPC classification number: A61H3/00 , A61H1/02 , A61H2201/0207 , A61H2201/0214 , A61H2201/1207 , A61H2201/5007 , A61H2201/5053 , A61H2201/5061 , A61H2201/5071 , B25J9/0006 , B25J9/1075 , F03G7/06
Abstract: An artificial muscle includes a first stress transmission part and a second stress transmission part, which are spaced apart from each other in a first direction, a contraction coil spring provided between the first and second stress transmission parts to pull the first and second stress transmission parts, and an expansion part provided between the first and second stress transmission parts to push the first and second stress transmission parts. The contraction coil spring has a shape of a spring progressing in the first direction, and the contraction coil spring is contracted by heat.
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4.发明申请公开(公告)号：US20230103068A1
公开(公告)日：2023-03-30
申请号：US18057166
申请日：2022-11-18
Inventor： Seung Koo PARK , Sung Ryul Yun , Ki Uk Kyung , Mi Jeong Choi , Bong Je Park , Suntak Park , Saekwang Nam , Seongcheol Mun , Eun Jin Shin , Jeong Mook Lim
IPC: C08J5/18 , C08L83/10 , C08G77/442 , G02B26/02 , C08G77/20
Abstract: Provided are a composition for a light transmittance control film, and a light transmittance control film. According to the inventive concept, the light transmittance control film includes a matrix part including a copolymer and a polymer chain which is grafted to the copolymer; and a dispersed part including a polymer derived from a first monomer, and are provided in the matrix part, wherein the polymer chain is derived from the first monomer, first light transmittance is shown while external force is applied, and second light transmittance which is greater than the first light transmittance may be shown after the external force is removed.
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Patent Agency Ranking
公开(公告)号：US10996432B2
公开(公告)日：2021-05-04
申请号：US16215424
申请日：2018-12-10
Inventor： Suntak Park , Bong Je Park , Ki-Uk Kyung , Seung Koo Park , Sung Ryul YuN , Seongcheol Mun , Jeong Muk Lim
Abstract: A reflective active variable lens includes an upper electrode, a lower electrode disposed in parallel to the upper electrode, a deformation part disposed between the upper electrode and the lower electrode, a reflective part disposed on the upper electrode, and a support part disposed to surround the deformation part. Here, the deformation part and the support part are connected to each other to provide a single structure, the deformation part is expanded from an initial shape when an electric field is formed between the upper electrode and the lower electrode, and the expanded deformation part is contracted when the electric field is removed and restored to the initial shape.
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公开(公告)号：US10898404B2
公开(公告)日：2021-01-26
申请号：US15898154
申请日：2018-02-15
Inventor： Jeong Mook Lim , Sung Ryul Yun , Ki-Uk Kyung , Seongcheol Mun
Abstract: An artificial muscle includes a first stress transmission part and a second stress transmission part, which are spaced apart from each other in a first direction, a contraction coil spring provided between the first and second stress transmission parts to pull the first and second stress transmission parts, and an expansion part provided between the first and second stress transmission parts to push the first and second stress transmission parts. The contraction coil spring has a shape of a spring progressing in the first direction, and the contraction coil spring is contracted by heat.
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7.发明授权公开(公告)号：US12043740B2
公开(公告)日：2024-07-23
申请号：US17324869
申请日：2021-05-19
Inventor： Seung Koo Park , Sung Ryul Yun , Ki Uk Kyung , Mi Jeong Choi , Bong Je Park , Suntak Park , Saekwang Nam , Seongcheol Mun , Eun Jin Shin , Jeong Mook Lim
IPC: C08L83/10 , C08F220/14 , C08F283/12 , C08G77/20 , C08G77/442 , C08J5/18 , G02B26/02 , G02B1/04
CPC classification number: C08L83/10 , C08F220/14 , C08F283/12 , C08G77/20 , C08G77/442 , C08J5/18 , G02B26/023 , C08J2383/10 , C08L2203/16 , G02B1/04 , C08L83/10 , C08L33/10
Abstract: Provided are a composition for a light transmittance control film, and a light transmittance control film. According to the inventive concept, the light transmittance control film includes a matrix part including a copolymer and a polymer chain which is grafted to the copolymer, and a dispersed part including a polymer derived from a first monomer, and are provided in the matrix part, wherein the polymer chain is derived from the first monomer, first light transmittance is shown while external force is applied, and second light transmittance which is greater than the first light transmittance may be shown after the external force is removed.
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公开(公告)号：US11275444B2
公开(公告)日：2022-03-15
申请号：US16976950
申请日：2020-01-21
Inventor： Sung Ryul Yun , Suntak Park , Seongcheol Mun , Bong Je Park , Seung Koo Park , JaeWoong Yoon , Inwook Hwang , Jeong Muk Lim
Abstract: The present invention relates to a shape-variable electronic device and an operation method of the same and, more specifically, the shape-variable electronic device includes: a substrate having a cell region; a light source unit on the cell region; and a flexible layer vertically spaced apart from the light source unit. The flexible layer includes an actuator part that changes a shape of the flexible layer, and the actuator part includes: a photo-thermal response part that receives light emitted from the light source unit and generates thermal energy; a deformation part which receives the thermal energy from the photo-thermal response part and of which mechanical stiffness is reduced; and a top electrode and a bottom electrode on both surfaces of the deformation part, respectively.
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9.发明授权公开(公告)号：US11041055B2
公开(公告)日：2021-06-22
申请号：US16306866
申请日：2018-04-19
Inventor： Seung Koo Park , Sung Ryul Yun , Ki Uk Kyung , Mi Jeong Choi , Bong Je Park , Suntak Park , Saekwang Nam , Seongcheol Mun , Eun Jin Shin , Jeong Mook Lim
IPC: C08J5/18 , C08L83/10 , C08G77/20 , G02B26/02 , C08G77/442
Abstract: Provided are a composition for a light transmittance control film, and a light transmittance control film. According to the inventive concept, the light transmittance control film includes a matrix part including a copolymer and a polymer chain which is grafted to the copolymer; and a dispersed part including a polymer derived from a first monomer, and are provided in the matrix part, wherein the polymer chain is derived from the first monomer, first light transmittance is shown while external force is applied, and second light transmittance which is greater than the first light transmittance may be shown after the external force is removed.
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