Researchers in Singapore create first wearable touchscreen sleeve made from electronic yarn

Scientists at the National University of Singapore have developed the world's first touchscreen built into a clothing sleeve using electronic fibres. Led by assistant professor Tural Khudiyev at the College of Design and Engineering, the team published their findings on Wednesday.

How It Works

The sleeve uses 54 electronic fibres, with each fibre containing 96 tiny LED lights. The display measures 168 mm by 105 mm and can detect several touches at once. To build it, the team used a laser to expose small sections of insulated wires where microchips needed to connect. They used melted solder to join components at those points, linking over 5,000 chips through more than 20,000 electrical connections. A touch-sensitive layer beneath the LEDs detects where the user presses the fabric and lights up the nearest pixel. Each fibre works independently so the rest keep functioning if one stops working.

Features and Testing

The sleeve can show images and videos, run a calculator, act as a compass, respond to voice commands, and connect wirelessly to other devices via Bluetooth. It also features a microphone, a speaker, and sensors that detect movement, direction, light, and temperature. By placing a temperature sensor under the arm, the team measured body temperature and displayed the reading on the fabric. Despite the complex electronics, the display stays flexible and breathable like cotton, polyester, and denim. It kept its brightness and touch response after 50 machine washes with detergent and 1,000 tight bends, and it met skin safety limits.

Future Plans

The research team now plans to improve screen resolution, add more sensors, and build artificial intelligence directly into the fabric. These updates could eventually allow clothing to monitor the wearer and their surroundings to provide useful information and assistance.

Context

Traditional electronic screens rely on flat, rigid glass or plastic panels that cannot bend or flex comfortably. Weaving electronic components directly into yarn bridges the gap between digital displays and everyday textiles. This technology could change how people interact with wearable devices in the future.