The aspect ratio of a monitor is the ratio between the height and width of a monitor. This parameter is closely linked to the resolution component we mentioned above. With the wide selection of products available, you’ll find that there are also many different aspect ratios, however, the most common one is 16:9.
To explain a little more, a Full HD screen, i.e. 1920 x 1080 pixels, would have this aspect ratio. At the end of the day, it’s a matter of proportions. In other words, for every 9 vertical pixels, there are 16 horizontal pixels. Another aspect ratio, increasingly used, is 21:9; this is a more panoramic ratio.
It is important to note that the aspect ratio does not affect image quality. For instance, let’s consider a screen with a 1920 x 1080 resolution and another with 7680 x 4320. Both have a 16:9 aspect ratio. However, the second would have a higher image quality. Keep in mind that a 4:3 aspect ratio was popular years ago, but is now in decline.
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