LCD TVs, or Liquid Crystal Display televisions, use liquid crystals sandwiched between two layers of glass to create images. These crystals change alignment when an electric current passes through them, allowing light to pass or be blocked. This technology provides sharp images and vibrant colors, making it popular for home entertainment. Most LCD TVs are backlit by LEDs (Light Emitting Diodes), which enhance brightness and energy efficiency. They come in various sizes and resolutions, including HD (High Definition) and 4K, catering to different viewing preferences. LCD TVs are known for their slim design and lightweight, making them easy to mount on walls.