LCD, or Liquid Crystal Display, is a technology used for displaying images and videos on screens. It works by manipulating light through liquid crystals sandwiched between layers of glass or plastic. LCDs are widely used in televisions, computer monitors, and smartphones due to their thin profile and energy efficiency. The technology has evolved significantly since its inception, leading to improved color accuracy and response times. LCDs are favored for their ability to produce sharp images and are often compared to other display technologies like LED and OLED. Their versatility makes them a popular choice in various applications.