A prototype developed by researchers from Sungkyunkwan University in Korea and the University of Nevada in the US. In their study, the researchers fabricated an 11 x 14 mm sheet with Velcro on the edges, and rolled it up in the shape of a thimble to be worn on the finger. The working concept behind this device is created an electro active polymer that can stimulate the skin without using any additional electromechanical transmission.

The polymer sheet which consists of eight layers of dielectric elastomer actuator films is about 210 micrometers thick. The display conveys information to the wearer when the electrodes induce a voltage across the films. A voltage causes the films to compress down and expand outward. In doing so, the films put pressure on the wearer’s skin, inducing a “mild sensation.” [Via talk2myshirt]

The main purpose of this device is work as a Braille Display for the blind people. This flexible tactile display will help us to have physical interaction with our electronic devices without relying on the visual element alone.

This amazing innovation by these gifted researchers can start a new era of advanced wearable displays in areas like rescue operations, health and tele medical garments and gloves, in sport apparels and wearable gaming accessories.