Electro magnetic refreshable braille reader

A tactile display comprising:

• a removable top dot capture assembly comprising a top plate having a plurality of top openings and a bottom plate having a plurality of bottom openings aligned with the top openings, the removable top dot capture assembly containing a plurality of Braille dots, each Braille dot having a mechanical constraint collar formed between an upper Braille portion extending through corresponding top openings in the removable top dot capture assembly when the Braille dot is in a raised position and a lower linkage portion extending through the corresponding bottom openings in the removable top dot capture assembly, where the mechanical constraint collar is configured to limit travel of the Braille dots through the top openings and the bottom openings;
• an actuator dot capture assembly disposed beneath the removable top dot capture assembly, where the actuator dot capture assembly contains a plurality of actuator dots aligned with corresponding Braille dots in the removable top dot capture assembly;
• an actuator assembly comprising a top stator plate with openings to a plurality of spaces that contain a plurality of magnet actuators, where the actuator dot capture assembly is mounted on top of the actuator assembly to align the plurality of Braille dots and the plurality of actuator dots with the corresponding magnet actuators, the plurality of magnet actuators configured to actuate corresponding Braille dots via the actuator dots, where the magnet actuators are controlled by circuitry on a dot driver board housed within the actuator assembly;
• and
• a membrane between the removable top dot capture assembly and the actuator dot capture assembly, where the membrane is configured to be impermeable to debris and extends across the removable top dot capture assembly between the Braille dots and the corresponding actuator dots.