This screen shape has a ratio of width to height of 16 by 9, more closely approximating that in an actual cinema.
A video image wider than the standard 1.33 ( 4:3) aspect ratio. When referring to DVD or HDTV, widescreen usually indicates a 1.78 ( 16:9) aspect ratio.
General term for form of film presentation in which the picture shown has an aspect ratio greater than 1'33:1.
Usually refers to the 16:9 aspect ratio of theatrical movies and digital TV sets.