Flexible, Sweat-Resistant Electrophoretic Fibers for Next-Gen Wearable Displays

Textile displays have emerged as a promising technology for wearable electronics, yet maintaining excellent display performance and durability in daily use remains a challenge. We present a highly flexible yarn-based electrophoretic display fiber (EPDF) for wearable textile displays, fabricated using a low-temperature solution process. The EPDFs feature a coaxial structure with a diameter of less than 500 μm, enabling seamless integration into fabrics while maintaining textiles’ lightweight and breathable properties. The EPDFs exhibit stable black and white states under driving, with potential for thermal management applications. A dual encapsulation layer provides protection against sweat and sebum, enhancing durability for daily use. These features make EPDFs a promising candidate for next-generation wearable textile displays. Graphical