So most old analog CRT TVs have an aspect ratio of 4×3. But earlier films were presented in a 4:3 ratio. Since the introduction of widescreen HDTV and 4K Ultra HD TV, aspect ratio has been standardized with the 16×9 aspect ratio. Also, it will help to reduce the blank space around the picture.īecause the majority of today's TV shows use the aspect ratio of 16:9, so 16:9 works great for TVs. With a certain aspect ratio, TV device can better handle video contents and resolutions without any stretching or distortion of the picture. Today, all smart TVs sold on the market have a standard aspect ratio of 16:9. W refers to the width, and H is the height. In general, TV aspect ratio presented as W:H like 16:9, 4:3, or 21:9. TV aspect ratio is the ratio of width to height of the TV screen.
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