Bistable electroactive polymer for refreshable Braille display with improved actuation stability

Xiaofan Niu; Paul Brochu; Hristiyan Stoyanov; Sung Ryul Yun; Qibing Pei

doi:10.1117/12.915069

3 April 2012 Bistable electroactive polymer for refreshable Braille display with improved actuation stability

Xiaofan Niu, Paul Brochu, Hristiyan Stoyanov, Sung Ryul Yun, Qibing Pei

Proceedings Volume 8340, Electroactive Polymer Actuators and Devices (EAPAD) 2012; 83400R (2012) https://doi.org/10.1117/12.915069
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2012, San Diego, California, United States

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.

Citation Download Citation

Xiaofan Niu, Paul Brochu, Hristiyan Stoyanov, Sung Ryul Yun, and 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); https://doi.org/10.1117/12.915069

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