Refreshing Braille Display: An Eye for the Eyeless

To increase the ability of getting information directly from the electronic devices like computers or to understand graphics by individuals with visual impairments, we are implementing a display device using braille language. A display which is of two-dimensional is been developed for visually impaired people and is fabricated and is successfully worked. The language characters like letters and alphabets are displayed dynamically by pins/needles in up and down positions that are connected in series. The movement of the coil actuators moves the pins upward and downward directions, and these coils gets heated up by an electrical current that flows through it. A structure which is like tube is fabricated and permanent magnet exactly moves the pins/needles in an upward or downward state without the feedback control. This mechanism of latch magnet overcomes problems of heat consumption and electrical consumption of the coil because the current is supplied to the coils only when the pins/needles move and also the costly devices which are available now. The cost is reduced with the use of materials normally found available and making it easy to handle. The present works describe a variety of other techniques for easy movement and to decrease power consumption. This system uses electromagnets and also strives to reduce interference for the smooth and error free working.