Braille Displays Get New Life with Artificial Muscles
From: Medical Design Briefs - 04/2011 - page 20

Research with tiny artificial muscles may yield a full-page active Braille
system that can refresh automatically and come to life right beneath your
fingertips.  

Read the entire article at:
http://www.medicaldesignbriefs.com/component/content/article/9928
http://www.nasa.gov/topics/nasalife/features/tech20090813.html

Link:
Center for Braille Innovation
http://www.nbp.org/ic/nbp/technology/cbi.html