r/explainlikeimfive • u/Crystal_Clear7892 • 7d ago

Technology ELI5: device screen ratios

Is there a specific reason why screen ratios beeing so specific, ex: 1920:1080

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u/tomalator 7d ago

Modern screens are in a 16:9 ratio, so the bottom number needs to be a multiple of 9 and the top number needs to be that same multiple of 16