Chiral nematic liquid crystals

Chiral nematic liquid crystals, also known as cholesteric liquid crystals, are a type of material that has properties between liquids and solids. Their molecules are arranged in a twisted structure, which allows them to reflect specific wavelengths of light, giving rise to vibrant colors. This twist is due to the chirality of the molecules, meaning they have a "handedness" or asymmetry. As a result, chiral nematic liquid crystals are used in displays, such as in some watches and screens, where they control light to create images or colors, benefiting from their unique optical qualities.