Hydraulic And Latching Mechanism (IMAGE) North Carolina State University Caption The researchers have developed a concept called a "hydraulic and latching mechanism," which they expect to form the basis for a full-page, refreshable Braille display system. Credit Dr. Neil Di Spigna, North Carolina State University Usage Restrictions Image credit must be given License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.