LCD monitors, or Liquid Crystal Display monitors, are flat-screen displays commonly used in computers and televisions. They work by using liquid crystals that change alignment when an electric current passes through them, allowing light to pass or be blocked. This technology provides sharp images and vibrant colors while consuming less power compared to older CRT monitors. These monitors are lightweight and slim, making them easy to fit into various spaces. LCD monitors come in various sizes and resolutions, catering to different needs, from casual browsing to professional graphic design. Their versatility and efficiency have made them a popular choice in both homes and offices.