公开(公告)号：US11275444B2

公开(公告)日：2022-03-15

申请号：US16976950

申请日：2020-01-21

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sung Ryul Yun ,  Suntak Park ,  Seongcheol Mun ,  Bong Je Park ,  Seung Koo Park ,  JaeWoong Yoon ,  Inwook Hwang ,  Jeong Muk Lim

IPC: G06F3/01 ,  G06F3/041 ,  G09B21/00 ,  G05D25/02 ,  H01L27/32

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.