A compact electroactive polymer actuator suitable for refreshable braille display

Kailiang Ren, Sheng Liu, Minren Lin, Yong Wang, Qiming Zhang

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    8 Scopus citations

    Abstract

    The large strain, high elastic modulus, and easy processing of P(VDF-TrFE-CFE) electrostrictive terpolymer make it very attractive to replace low strain piezoceramics and piezopolymers in many applications with much improved performance. In this paper, a compact polymer actuator is developed utilizing the electrostrictive terpolymer, which is suitable for full page Braille Display and graphic display. Key issues related to the reliability of electroactive polymers used in the compact actuators and for the mass fabrication of these polymer actuators are investigated. Making use of a recently developed conductive polymer, a screen printing deposition method was developed which enables direct deposition very thin conductive polymer electrode layer (< 0.1 μm) with strongly bonding to the terpolymer surface and short fabrication time. It was observed that the thin conductive polymer electrodes lead to the self-healing of the polymer after electric breakdown. An EAP compact Braille actuator was designed and fabricated with these terpolymer films wound on a spring core. The test results demonstrate that the EAP Braille actuator meets all the functional requirements of actuators for refreshable full Braille display, which offers compact size, reduced cost and weight.

    Original languageEnglish (US)
    Title of host publicationElectroactive Polymer Actuators and Devices (EAPAD) 2007
    DOIs
    StatePublished - Oct 15 2007
    EventElectroactive Polymer Actuators and Devices (EAPAD) 2007 - San Diego, CA, United States
    Duration: Mar 19 2007Mar 22 2007

    Publication series

    NameProceedings of SPIE - The International Society for Optical Engineering
    Volume6524
    ISSN (Print)0277-786X

    Other

    OtherElectroactive Polymer Actuators and Devices (EAPAD) 2007
    CountryUnited States
    CitySan Diego, CA
    Period3/19/073/22/07

    All Science Journal Classification (ASJC) codes

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics
    • Computer Science Applications
    • Applied Mathematics
    • Electrical and Electronic Engineering

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  • Cite this

    Ren, K., Liu, S., Lin, M., Wang, Y., & Zhang, Q. (2007). A compact electroactive polymer actuator suitable for refreshable braille display. In Electroactive Polymer Actuators and Devices (EAPAD) 2007 [65241G] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 6524). https://doi.org/10.1117/12.715058