Braille that fits in your pocket

Tetragon, a TU Wien spin-off, has invented a completely new kind of Braille display, which is user-friendly, cost-effective and extremely portable. Braille has proven to be a very effective writing system for many decades. However, it has still not yet fully entered the digital age. Braille displays are expensive, complicated and unwieldy. This could be set to change though, with the Austrian start-up Tetragon, a spin-off of the TU Wien, which is developing a completely new concept. The Tetragon display consists of a ring, inside which letters are displayed in Braille for the user to feel. The ring is relatively straightforward in technical terms - it fits into any jacket pocket and is projected to be far more affordable than similar products that are already on the market.