16:9(or widescreen) is theratio with the width of 16 units by the height of 9 units.
In the early 21st century, widescreen became the conventional videoaspect ratio forHDTV,SDTV, andcomputer monitors and it is often used insmartphone screens.
"A Brief Review on HDTV in Europe in the early 90's| LIVE-PRODUCTION.TV".www.live-production.tv.
