Braille devices can translate text message on a computer into Braille by screen reading software and display it automatically. Blind can hand touch changing Braille on Braille unit to obtain information on a computer screen. It has become a required equipment of library for the Blind, Blind school equipment, special education schools, Blind school multimedia classrooms, and special education school multimedia classrooms etc. special education institutions.  

 

Piezoelectric actuators used to drive changes blind spot, with many advantages such as fast response, low power consumption, compact equipment, affordable prices etc., and have been the only choice of braille devices drive blind changes components.