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Is it worth buying a high-definition TV?

The answer is no, Cambridge University researchers say the human eye has a limit of resolution.

18:00 - 20:00
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EITB

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High-definition TVs are fashionable in the audiovisual market. We're looking for bigger and better defined TVs. Ultra HD, HD, 4K, 8K are all kinds of TVs.

But is it worth buying a high-price high-definition TV?

Researchersat the University of Cambridge and Meta Reality Labshave shown that the human eye is often unable to distinguish high qualities.

In fact, scientists say that the human eye has a limit of resolution and can only detect a certain number of pixels, so a very high resolution screen can provide information that the eye cannot detect.

So the fact that a screen has more pixels doesn't always mean it's going to have a better visual perception, it's influenced by factors like screen size, distance, etc.

The researchers have set an essential practical case: an average room, an ultra high-resolution TV (4K or 8K) and a user 2.5 metres from the TV. According to experts, this type of television would have no advantage over a "Quad HD".

Maliha Ashraf, a researcher at the Cambridge Department of Computer and Technology Sciences and the first author of the study, explained that "it is important to know where the boundary between improvements and benefits lies."

However, researchers have found that the limit of resolution of the human eye is greater than expected; however, it is not the same with colors as with black-and-white images. It seems that the brain does not have the ability to perceive the details of color images very well.

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