Trend: Digital Surfaces for the Blind

Tactile surfaces are making technology and information much more accessible to people with visual handicaps

As a range of new interfaces and surfaces for digital devices are developed, it is becoming easier for visually impaired people to use devices sighted people take for granted. Tactile displays enable digital data to be felt rather than seen, making it easier for blind and partially sighted people to access the Internet, keep their credit card details secure, and take and archive pictures.

Cases

Touch Sight Camera

This Samsung design embosses 3D images on its flexible Braille display, turning images into a surface that can be felt. It also captures a few seconds of sound to accompany each picture, making them much easier to search and archive. Images can be shared online and downloaded to other Touch Sight cameras.

ReEnvision

Smooth touch-screen technology on debit card readers hinders visually impaired people by requiring them to give their PIN to the cashier. This design provides a low-cost solution, sitting flush on a debit card reader to provide tactile buttons.

Sentio

Although blind people can’t see, it doesn’t mean they don’t want to look good. This was Matthew Wagerfield’s approach when he incorporated tactile technology into this watch. The clock’s face features two seven-segment digital displays that rise 1mm above its surface, providing a tactile function for the blind and a visual spectacle for the sighted.

Saifu

Saifu is a tablet PC that uses a conceptual magnetized liquid material called magneclay. The oil based synthetic reacts to a magnetic charge, rearranging itself infinite numbers of times to display Braille or tactile 3D images in relief.

Trend Impact
These designs demonstrate many of the ways in which technology is making up for the difference in people’s abilities, leveling the playing field and making more activities and roles accessible to more parts of the population.

Of course, many of these technologies can provide benefits to sighted people. For example, a tactile surface could be applied to a bedside clock, enabling one half of a couple to find out what time it is without disturbing the other.

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