Or they truly do.
In: Engineering
Yes, this is true. If you have 20/20 vision you can see 60 discernible points per degree of your viewing angle. It’s recommended to watch movies where the screen takes up 35 horizontal degrees of your view. If you do the math on that you get 2100 pixels you’d be able to see on the horizontal. Pretty close to 2K. Anything after that, you wouldn’t be able to make out at the recommended viewing distance. With a 4K tv, you can always walk closer to the screen than is recommended to take in all those details.
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