Liquid Crystalline Medium for Fast Switching and Low Viscosity

The patent applies parameter changes by modifying the molecular structure of liquid crystal compounds (changing chemical composition and physical parameters) to achieve shorter switching times while maintaining reliability. Specifically, compounds with formula I feature modified molecular structures with specific radical groups that reduce rotational viscosity, enabling faster switching without compromising long-term operational reliability.

The patent employs composite materials by creating liquid-crystalline mixtures that combine compounds of formula I with other liquid crystal compounds having complementary properties. This composite approach allows the mixture to achieve fast switching times through the low rotational viscosity compounds while maintaining temperature stability and chemical resistance through the stabilizing properties of the other components in the mixture.

The patent applies local quality by designing compounds where specific molecular regions (local structures) have optimized properties. The compounds of formula I contain specific radical groups and molecular configurations that locally enhance elastic constants while other parts of the molecular structure maintain low rotational viscosity, achieving the desired balance between switching speed and response time.