Inch Definition
Inches are the Anglo-American unit. 12 inches equals 1 foot, and 36 inches is one yard. According to modern standards, one inch is equal to 25.4 millimeters.
In the liquid crystal display, the specifications are generally 17 inches, 19 inches, 23 inches, 27 inches and so on. In mobile phones, the screen sizes are generally 4.0 inches, 4.2 inches, 4.5 inches, 4.7 inches, 4.8 inches, 5.0 inches, 5.2 inches, 5.5 inches, 5.7 inches, 6.44 inches and so on. In tablet computers, the screen sizes are generally 7.9 inches, 9.7 inches, and 12.9 inches. The size of the display is measured in terms of the length of the diagonal, in “inches”.