How big is the 5-inch screen of mobile phone? What are the length and width in centimeters?

1, the mobile phone screen is 5.5 inches, which means the diagonal of the screen is 5.5 inches. 1 inch ≈2.54 cm, 5.5 inches ≈ 13.97 cm.

2. The length is11.07cm and the width is 6.23cm.. Length and width calculation: suppose the screen length is x, the screen width is 9x/16 according to the ratio of16, and the Pythagorean theorem is: x 2+(9X/ 16) 2 =13.972, X = 65438. So a 5.5-inch screen is roughly a rectangle with a length of 1 1.07 cm and a width of 6.23cm..

3, the main classification of screen size

(1) The screen size is divided into physical size and display resolution.

(2) Physical size refers to the actual size of the screen. The large screen must be equipped with high resolution at the same time, that is, how many pixels can be displayed in this size, and the more pixels are displayed, the greater the room for performance. The screen sizes of the two monitors are almost the same, but one can only display two lines of Chinese characters and the other can display five lines of Chinese characters. Aside from the difference in font size, the key is the resolution of the screen. The resolution is a little larger, and more lines of Chinese characters can naturally be displayed under the same font size.

(3) Screen resolution, that is, the number of liquid crystal cells ([dots]) divided by the screen area, is the screen resolution, which is the biggest factor that determines the picture quality. Therefore, when purchasing a monitor, we should not only pay attention to the color depth that the screen can display, but also the screen resolution is a very important determinant.