Computer Monitors are typically measured and marketed by the diagonal length of the screen. The diagonal can be calculated by using the Pythagorean theorem; that is to take square root of the combined height squared plus the width squared.
If you mean the screen size, then it is measured by the diagonal of the screen from corner to corner.
Lenth
screen size of any computer or tv screen is measured along the diagonal. so screen size 14 inches means that the length of the diagonal of the screen is 14 inches
it is measured in speed because of how fast it can transfer to the screen
Manufacturers measure monitors by screen size. The measurement is taken diagonally, from the bottom left of the screen to the top right corner of the screen.
Screen size is measured diagonally in inches between opposite corners of the screen.
The S4 mini has a screen size of 4.3 inches (measured diagonally) with 540x960 pixels.
Every screen I have ever heard of is measured from corner to corner. Televisions, LCDs, computer monitors, everything I know of. Always has been. Also, there is a difference is screen size and VIEWABLE screen. For example, if you have a 23" monitor, it may only be 21" viewable. Manufacturers market the total screen size, which is more than the viewable size.
Diagonally across the screen. (From top left to bottom right, or top right to botom left.)
VDU, which stands for Visual Display Unit, is measured in inches. It refers to the size of the screen of a computer monitor or television.
This laptop features a standard 15.4" diagonally measured wide screen display as per the manufacturer.
The display size of the screen is measured on the diagonal. For instance, lower left hand corner to upper right hand corner. For the TV itself, the size will vary on the case design.