Earlier this month, we set out to investigate if the extra resolution offered by 4K over 1080p is visible at normal viewing distance, as part of an Ultra HD and OLED television showcase event organised by British retailer Richer Sounds. A 55-inch 4K UHD (ultra high-definition) TV was lined up alongside a 1080p HDTV of the same size, each displaying content thats 1:1 pixel-matched to its native screen resolution. Both TVs had their identities masked by custom-built cabinets which were spray-painted black. Standing 9 feet away (enforced using crowd control posts), attendees were then asked to pick out the 4K television after sampling the displayed material.
The results are now in, and an overwhelming majority of participants correctly identified the 4K TV, indicating that there exists a perceptible difference even from as far as 9 feet away on a 55" screen. Out of 49 attendees who submitted their pick to enter a prize draw, only one thought that the 1080p set was the 4K display.
While wed like to claim that weve provided the definitive answer to the great 4K vs 1080p debate, there are a number of caveats. First, the 4K videos we served from a media PC were high quality, which included a demo clip from Chimei Innolux, as well as the Blender Foundations excellent open-source movie projects Tears Of Steel and Sintel. Critics may argue that this is unrealistic, since the native 4K material that may become available in streaming format will probably be compressed to a heavier degree. However, our intention was to demonstrate the difference if any between the best of 4K versus the best of 1080p. After all, if you wanted to show off your HDTV to your friends, you would use the most pristine Blu-ray movies, instead of softer HD content or (gasp) Netflix, wouldnt you?
Last but not least, resolution is only one of the many attributes of picture quality, and not the most important one. Amongst the swarm of 4K televisions on exhibit, it was actually a full HD 1080p set the LG 55EA980W OLED TV that hogged the attention of those attending the event, largely due to its ability to render true 0 cd/m2 blacks, contributing to an unrivalled contrast performance (which most video enthusiasts agree is the principal determinant of image quality). Ok, its unfathomably slim panel and subtly curved design probably turned more than a few heads too.
So there you have it: the superior resolution of 4K over 1080p is visible on a 55″ screen from 9 feet away, provided the content is up to par. The difference is not big unless you move closer only you can decide if this is worth the higher prices currently commanded by Ultra HD 4K TVs.
Regardless of what anyone (and that includes us) say or think, 4K TV is coming, with or without widely available native 4K content. Eventually the price premium between a 4K set and a 1080p HDTV will become negligible, and the latter will go the way of 720p, HD-ready displays into the scrapheap of phased-out technologies. Our only plea to TV manufacturers is to not ignore other aspects of image quality in pursuit of resolution (4K OLED to the fore, please), and we hope that it wont be too long before consumers can get their hands on high-quality 4K content such as 4K Blu-ray to take full advantage of UHD televisions.
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