3 April 2012 Bistable electroactive polymer for refreshable Braille display with improved actuation stability
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Abstract
Poly(t-butyl acrylate) is a bistable electroactive polymer (BSEP) capable of rigid-to-rigid actuation. The BSEP combines the large-strain actuation of dielectric elastomers with shape memory property. We have introduced a material approach to overcome pull-in instability in poly(t-butyl acrylate) that significantly improves the actuation lifetime at strains greater than 100%. Refreshable Braille display devices with size of a smartphone screen have been fabricated to manifest a potential application of the BSEP. We will report the testing results of the devices by a Braille user.
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Xiaofan Niu, Xiaofan Niu, Paul Brochu, Paul Brochu, Hristiyan Stoyanov, Hristiyan Stoyanov, Sung Ryul Yun, Sung Ryul Yun, Qibing Pei, Qibing Pei, } "Bistable electroactive polymer for refreshable Braille display with improved actuation stability", Proc. SPIE 8340, Electroactive Polymer Actuators and Devices (EAPAD) 2012, 83400R (3 April 2012); doi: 10.1117/12.915069; https://doi.org/10.1117/12.915069
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