Liquid crystals are a unique state of matter that exhibit properties of both liquids and solids. They can flow like a liquid but have an ordered structure similar to that of a solid. This special arrangement allows them to manipulate light, making them useful in various applications, particularly in display technologies. One of the most common uses of liquid crystals is in LCD (Liquid Crystal Display) screens, found in devices like televisions and smartphones. In these displays, liquid crystals change their alignment in response to electric fields, controlling the passage of light and creating images.