Abstract
AbstractDevelopment of ultra‐stretchable and sensitive soft touch panel is of great importance for broad applications in artificial intelligence, wearable devices, and soft robotics. However, traditional human‐computer interfaces (HCIs) suffer from the discomfort and asynchronous signals in current application scenarios. Herein, a hydrogel‐based self‐healing touch panel, which is highly deformable, and both mechanically and electrically self‐healable, has been successfully developed from a poly(N,N′‐dimethylacrylamide)/silica hydrogel which possesses an ultra‐high stretchability >3800%. A surface‐capacitive touch mechanism is adopted to sense a touched position. The panel can be operated under high areal strain without sacrificing its functionalities. Skin touch panel is constructed and adhered to human skin, with the strong performance and self‐healing ability demonstrated by writing words and playing games.
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