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Ionic Liquids and Polypyrrole Helix Tubes: Bringing the Electronic Braille Screen Closer to Reality

Conference Paper


Abstract


  • There is a great need to develop a computer screen based on Braille technology that allows blind people to access computer-based information to the same extent as sighted people. The lack of a "graphical user interface" for the blind severely restricts employment, educational and recreational opportunities readily available to sighted people in the "internet age". Equally, the development of a refreshable 2-D Braille screen offers the EAP community a great opportunity to make a tremendous impact with new actuator technology. In this paper we review progress made in the development of a prototype multi-dot Braille cell using conducting polymer actuators. Two innovations (a helical wire interconnect and ionic liquid electrolytes) have provided significant performance advances in terms of strain rate and cycle lifetime, respectively. Despite these advances, some further challenges remain.

Publication Date


  • 2003

Citation


  • Spinks, G. M., Wallace, G. G., Ding, J., Zhou, D., Xi, B., & Gillespie, J. (2003). Ionic Liquids and Polypyrrole Helix Tubes: Bringing the Electronic Braille Screen Closer to Reality. In Proceedings of SPIE - The International Society for Optical Engineering Vol. 5051 (pp. 372-380). doi:10.1117/12.484721

Scopus Eid


  • 2-s2.0-0242610307

Start Page


  • 372

End Page


  • 380

Volume


  • 5051

Abstract


  • There is a great need to develop a computer screen based on Braille technology that allows blind people to access computer-based information to the same extent as sighted people. The lack of a "graphical user interface" for the blind severely restricts employment, educational and recreational opportunities readily available to sighted people in the "internet age". Equally, the development of a refreshable 2-D Braille screen offers the EAP community a great opportunity to make a tremendous impact with new actuator technology. In this paper we review progress made in the development of a prototype multi-dot Braille cell using conducting polymer actuators. Two innovations (a helical wire interconnect and ionic liquid electrolytes) have provided significant performance advances in terms of strain rate and cycle lifetime, respectively. Despite these advances, some further challenges remain.

Publication Date


  • 2003

Citation


  • Spinks, G. M., Wallace, G. G., Ding, J., Zhou, D., Xi, B., & Gillespie, J. (2003). Ionic Liquids and Polypyrrole Helix Tubes: Bringing the Electronic Braille Screen Closer to Reality. In Proceedings of SPIE - The International Society for Optical Engineering Vol. 5051 (pp. 372-380). doi:10.1117/12.484721

Scopus Eid


  • 2-s2.0-0242610307

Start Page


  • 372

End Page


  • 380

Volume


  • 5051