Braille Displays
- A Braille display is a method of outputting text from a computer screen in Braille, used by those who are blind.
- A refreshable braille display or braille terminal is an electro-mechanical device for displaying braille characters, usually by means of round-tipped pins raised through holes in a flat surface. Visually impaired computer users who cannot use a standard computer monitor can use it to read text output.
- Braille display is a piece of hardware that turns text on a screen into Braille, generally connecting to a computer or cell phone via USB or Bluetooth. The display uses a system of raising and lowering pins in order to create Braille characters. As each braille character can have up to eight dots, every braille “cell” (a space for a single character) must contain eight small pins, and a motor or actuator to raise and lower each one. This means that Braille displays are large, expensive, and generally support displaying a limited number of characters at a time. Today, all Braille displays on the market can only display a single row of text at once, with the characters per row ranging between 16 and 80 characters, depending on the display.
