braille display

1 definition found

braille display - Free On-line Dictionary of Computing (26 May 2007) :

  braille display
  refreshable braille display
  refreshable display
  
     <hardware> (Or "refreshable braille display", "refreshable
     display") An electromechanical device that renders braille
     with tiny, independently controlled pins used to represent the
     state of dots in braille cells.  Each pin, in its "on" state,
     raises above the top of its hole in the screen; in its "off"
     state, it drops below the top of its hole.  Older systems used
     tiny solenoids to control the state of the pins; modern
     systems are piezoelectric.
  
     Typical dimensions of a braille display are 1 line of 40
     cells, each cell of two-by-eight dots.
  
     (1998-10-19)