Researchers led by research engineer Fu Heng at Singapore National University describe the work in a peer-reviewed Nature paper published this week. The paper, titled “Touch-sensing digital pixel fiber enables interactive garment GUI,” presents clothing as a possible multimodal computer interface for users who would rather leave their phones in their pockets.

The team says its manufacturing process can produce millimeter-thick fibers. Lasers remove insulation from selected points on thin copper wires, where light-emitting chips are attached. Thousands of chips can be connected to the wires with high precision. The fibers are then placed inside transparent plastic tubing. A second longitudinal channel contains two strips of compressible conductive polymer, giving the fiber pressure sensitivity.

The researchers produced fibers up to 10 meters long. They are thin and flexible enough to be woven into fabric or attached to it. The system can use a microphone and speaker. It can sense temperature and light. In a sweater sleeve, the team demonstrated dynamic graphics, audio-video playback, wireless data exchange, and computing functions.

The fabric retained its functionality after 50 gentle machine washes and 1,000 bending cycles. Shanshan Yao, an assistant professor in the Department of Mechanical Engineering at Stony Brook University, said the key advance was placing the functionality in the fibers before assembling them into fabric. If the fibers work with standard industrial weaving, knitting, and embroidery, she said, the approach could support electronic textiles in many shapes and sizes.

Yao described the work as a step toward replacing rigid displays with wearable interfaces that conform to the body. The demonstrated GUI remains relatively simple, comparable to early smartphones and tablets. The prototype uses separate microcontroller circuits connected to the fibers by cables, plus external battery packs. Future work will need to integrate the control electronics more cleanly and develop flexible threads that harvest energy from body heat or movement.