
Researchers at the University of Cambridge and Meta Reality Labs have conducted a new study into how the human eye perceives pixels on displays at different sizes and resolutions, and claim that once you get to a certain size and detail, there's no discernible difference, via TechXplore. According to the calculator they developed, at 10 feet distance, a 50-inch screen looks almost identical at 1440p and 8K resolution.
The researchers highlighted that as displays grow larger and more detailed, with ever greater resolutions, it's important to know what humans can actually see so that we aren't developing technologies that are largely redundant. But where previous studies have looked at the perceived retinal resolution, these researchers looked at what resolution the viewer could perceive with utmost clarity and no blur, indistinguishable from a perfect reference, and measured it distinctly for different colors and tones.