Smaller, More Affordable Braille Tablet
A tablet technology that uses a pneumatic system to create Braille dots could open the door to affordable, full-size Braille tablets. The system is an improvement over the conventional Braille displays. It can also be used to display charts or tables. http://www.engin.umich.edu/college/about/news/stories/2015/december/refreshable-braille-device/