Capacitive screens are touch-sensitive displays that detect touch through the electrical properties of the human body. When a finger touches the screen, it creates a change in the screen's electrostatic field, allowing the device to register the touch. This technology is commonly used in smartphones, tablets, and other electronic devices. Unlike resistive screens, which require pressure to register a touch, capacitive screens are more responsive and can support multi-touch gestures. They are often made of glass and provide a clearer image, making them popular in modern devices like smartphones and tablets.