To improve the optical and electro-optical properties of liquid crystals for use in display technology, the chemical composition and molecular structure can be manipulated in several ways:1. Tailoring molecular structure: The molecular structure of liquid crystals can be altered by modifying the core, terminal groups, or the length and flexibility of the linking groups. This can result in improved optical properties, such as faster response times, lower operating voltages, and better contrast ratios.2. Introducing chiral dopants: Adding chiral dopants to the liquid crystal mixture can induce a chiral nematic phase, which can lead to the development of more advanced display technologies, such as cholesteric liquid crystal displays ChLCDs with better viewing angles and color reproduction.3. Designing new mesogenic materials: Developing new mesogenic materials with specific optical and electro-optical properties can lead to improved performance in display applications. For example, designing materials with a high birefringence can result in better contrast and faster response times.4. Polymer stabilization: Incorporating polymers into liquid crystal mixtures can improve their electro-optical properties by stabilizing the alignment of the liquid crystal molecules. This can lead to displays with better image quality and longer lifetimes.5. Controlling the alignment of liquid crystal molecules: The alignment of liquid crystal molecules can be controlled by modifying the surface properties of the substrate or by using external fields electric or magnetic . This can result in improved electro-optical properties, such as faster response times and better contrast ratios.6. Introducing nanoparticles: Adding nanoparticles to liquid crystal mixtures can enhance their optical and electro-optical properties. For example, incorporating gold nanoparticles can improve the plasmonic properties of the liquid crystal, leading to better color reproduction and contrast in display applications.7. Developing new liquid crystal phases: Exploring and developing new liquid crystal phases with unique optical and electro-optical properties can lead to the advancement of display technology. For example, the development of the blue phase liquid crystal has enabled the creation of displays with faster response times and wider viewing angles.By manipulating the chemical composition and molecular structure of liquid crystals in these ways, researchers can continue to improve the optical and electro-optical properties of these materials for use in display technology.