April 7, 2021

High Definition (HD) simply means there are more pixels on the screen from top to bottom and the image quality is therefore higher as compared to its Standard Definition (SD) predecessor. Standard Definition starts at 240 and ends at 480 pixels from the bottom to the top of the screen; 720 is semi-HD; 1080 is […] More

There are two related, but slightly different definitions of resolution. There is image resolution, which is explained here: https://guides.lib.umich.edu/c.php?g=282942&p=1885350 And there is screen resolution for a tv or monitor. When talking about image resolution, the number is given as PPI, or pixels per inch. The resolution is not connected to the total height and width […] More