An LCD television, or Liquid Crystal Display TV, uses liquid crystals sandwiched between two layers of glass or plastic to produce images. When electrical currents pass through the crystals, they align to allow varying amounts of light to pass through, creating colorful pictures. LCD TVs are known for their slim design and energy efficiency compared to older CRT (Cathode Ray Tube) televisions. These televisions typically come in various sizes and resolutions, including HD (High Definition) and 4K options, providing clear and vibrant visuals. LCD technology is widely used in modern displays, making it a popular choice for home entertainment systems and public viewing areas.