Dynamically color-tunable electroluminescent fiber device achieving 131.07% sRGB color gamut coverage

• • Achieves 131.07% sRGB color gamut coverage with a 161.7 nm tunable emission range, enabling full-color displays for wearable human-computer interfaces. • • Coaxial winding structure enables hundred-meter-scale fabrication with luminance variation of only 2.76%, ensuring uniform large-area textile displays. • • Withstands 10,000 friction cycles, 20 accelerated washing cycles, and 10-day storage at 105 °C and −20 °C, meeting industrial durability standards for electronic textiles. • • Integrated smart watchband demonstrates real-time heart rate visualization and gesture-controlled color switching, validating practical clinical and interactive applications.