The display screen, also known as the monitor or screen, is the visual output device of an electronic device. It is the part of a device that shows information, images, or videos to the user. Display screens come in various sizes and types, such as LCD, LED, OLED, or even CRT (cathode ray tube) in older devices. They are used in devices like smartphones, tablets, computer monitors, televisions, and more. The screen displays images by using pixels, which are tiny dots that emit light or change color to create the desired image. The quality of the display screen is determined by factors such as resolution, color accuracy, contrast ratio, response time, and viewing angles.