• • Voltage-induced bandgap tuning from 40 nm to 180 nm reflection bandwidth enables dynamic switching between monochromatic and polychromatic holography, directly impacting reconfigurable displays and encryption.
• • Polymer-stabilized CLC with optimized weight ratio (88.52:2.48:8:1 nematic LC:chiral dopant:mesogenic monomer:photoinitiator) achieves stable gradient-pitch configuration under DC voltage, ensuring operational reliability.
• • Spin-selective Bragg-Berry phase encoding allows independent generation of distinct holograms (e.g., "weather sign" and "chameleon") from opposite helicity superstructures, doubling information channels for high-security encryption.
• • Thermal feasibility range of 15–35 °C with room temperature operation at 23.5 °C supports practical deployment in standard environments without active cooling.