Widescreen

Classic television aspect ratio 4:3, and two wider ratios

Widescreen images are displayed within a set of aspect ratios (relationship of image width to height) used in film, television and computer screens. In film, a widescreen film is any film image with a width-to-height aspect ratio greater than 4:3 (12:9).

For TV, the original screen ratio for broadcasts was in 4:3 (e.g. 768x576p). Largely between the 1990s and early 2000s, at varying paces in different countries, 16:9 (e.g. 7680x4320p) widescreen TV displays came into increasingly common use. Nowadays typically used in conjunction with Ultra high-definition (UHD).

With computer displays, aspect ratios wider than 4:3 are also referred to as widescreen. Widescreen computer displays were previously made in a 16:10 aspect ratio (e.g. 1680 × 1050), but now are usually 16:9 (e.g. 1920 × 1080).