28 March 2011 Refreshable tactile displays based on bistable electroactive polymer
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Refreshable tactile displays can significantly improve the education of blind children and the quality of life of people with severe vision impairment. A number of actuator technologies have been investigated. Bistable Electroactive Polymer (BSEP) appears to be well suited for this application. The BSEP exhibits a bistable electrically actuated strain as large as 335%. We present improved refreshable tactile display devices fabricated on thin plastic sheets. Stacked BSEP films were employed to meet the requirements in raised dot height and supporting force. The bistable nature of the actuation reduces the power consumption and simplifies the device operation.
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Xiaofan Niu, Xiaofan Niu, Paul Brochu, Paul Brochu, Brandon Salazar, Brandon Salazar, Qibing Pei, Qibing Pei, } "Refreshable tactile displays based on bistable electroactive polymer", Proc. SPIE 7976, Electroactive Polymer Actuators and Devices (EAPAD) 2011, 797610 (28 March 2011); doi: 10.1117/12.880185; https://doi.org/10.1117/12.880185

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