1. Energy-saving, optically multistable, flexible and fast-response liquid-crystal displays and other photonic devices;
2. Phase transition, electro-optical, dielectric and electro-thermal properties of liquid crystals, polymeric composites and nanoparticle dispersions;
3. Electrically controlled photonic-crystal/liquid-crystal hybrid structures for optical communications;
4. Label-free optical biosensors for protein and immunodetections by using liquid crystals;
5. Electrically and optically tunable metamaterials and devices.