| 摘要 |
PURPOSE: A Braille display device is provided to sense the current which is increased through reverse current by applying pressure on a voice coil motor. CONSTITUTION: A Braille display device comprises a Braille output module having an output function, a Braille input module having input and output functions, a portable terminal interface exchanging a portable terminal apparatus and data. The Braille output module comprises a unit cell(201) consisting of 6 Braille protrusions(203) The Braille protrusion is composed of a voice coil motor(205). The Braille input module is composed of one unit cell consisting of 6 voice coil motors. The corresponding voice coil motor is operated according to the signals corresponding to the information sent to the portable terminal apparatus. The information is expressed through the Braille protrusion in Braille. |
