RECONFIGURABLE-SURFACE DEVICE, IN PARTICULAR DISPLAY FOR DISPLAYING BRAILLE CHARACTERS

Tactile display including a display surface equipped with holes, a waveguide plate, equipped with holes, pins, each pin being slidably mounted in a hole of the display surface and a hole-of the waveguide plate in a direction between a first position and a second position, actuators fastened to the waveguide plate triggering an out-of-plane displacement of the waveguide plate, and a control unit controlling the actuators according to the time-reversal wave focusing method, in such a way that the actuators generate a wave in the waveguide plate located at the pin(s) to be activated, which generates a pulse in the waveguide plate and triggers the displacement of the pin(s) which switch(es) from the first position to the second position, a holder for holding the pin in each of the positions.