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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: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: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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