A screen is a device or electrical appliance used to display images and colors. Divided into screen and screen, also called display screen. Widely used in mobile phones, computers, monitors, televisions and devices with image or text display functions.
The screen is also called the display screen. The screen size is calculated according to the diagonal of the screen, usually in inches, which refers to the length of the diagonal of the screen. Commonly used display screens include standard screen (narrow screen) and wide screen, with the aspect ratio of standard screen being 4:3 (or a small ratio being 5:4), and the aspect ratio of wide screen being 16: 10 or 16:9.