- Aspect ratio specifies the ratio of width to the height. Video, still pictures and the devices used to display this have the aspect ratio like 3:2, 4:3, 16:9....
- The number before the colon represents the width and the number after the colon represents height.
Images on Screen with Different Aspect Ratio:
- Black bars appear when the aspect ratio of the content playing isn't matched with the aspect ratio of screen.
- Depending on the type of mismatch between the picture and the display's ratio, the black bars appear in different places.
- Content wider than the screen it is played on will have horizontal black bars, while content that is taller will use vertical bars.