Can’t Distinguish Difference Between 1440p and 8K at 3 Meters

Key Takeaways

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  • Higher screen resolutions beyond 4K may not offer significant improvements for viewers, as per the study conducted by Cambridge University and Meta Reality Labs.
  • The human eye struggles to distinguish between high-resolution images like 1440p and 8K on large screens (50 inches at 3 meters away).
  • Factors like viewing angle, ambient lighting, distance, and pixel color impact the visibility of individual pixels on a screen. White or black pixels are most visible, while yellow or purple pixels are least visible.
  • Increasing screen resolution beyond what is currently offered in 4K might not provide noticeable improvements and could become less cost-effective, according to the studys findings. The research aimed to identify the point at which further increases in screen resolution no longer significantly enhance viewer experience.

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Improving Resolution Beyond 4K May Yield Diminishing Returns for Viewers

New research from Cambridge University and Meta Reality Labs suggests that our eyes can’t always perceive the benefits of ever-increasing screen resolution. The study found that, when viewing a 50-inch screen from 3 meters away, people had difficulty distinguishing between 1440p and 8K images—a significant finding as screens get bigger and sharper. The researchers examined how easily viewers could see individual pixels. They considered factors like viewing angle, ambient lighting, and distance, as well as pixel color: visibility was highest for white or black (94 pixels per degree), followed by red or green (89 pixels per degree), and lowest for yellow or purple (53 pixels per degree). Even when combining all these elements in their analysis, very few participants could detect a difference at 1440p, and nobody noticed any difference between 4K and 8K. Professor Rafa Mantiuk from Cambridge University pointed out that simply adding more pixels to a screen isn’t always the best approach. These findings suggest that increasing resolution offers diminishing returns and becomes less cost-effective. The goal of the research was to identify the point at which further increases in screen resolution cease to provide a noticeable improvement.

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