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October 9, 2017 04:00 pm
Original Link: http://rss.slashdot.org/~r/Slashdot/slashdot/~3/2MgNwLLeEeY/latest-tvs-are-ready-for-their-close-ups
Latest TVs Are Ready for Their Close-Ups
An anonymous share a WSJ article: The latest televisions have more pixels than ever. But can your eyes detect the difference? The answer is yes -- if you sit close enough. Old TVs had 349,920 pixels. High-definition flat screens bumped up the total to 2 million. Ultrahigh-definition sets inflated it to 8 million. And manufacturers are now experimenting with 8K TVs that have an astounding 33 million pixels. More pixels render hair, fur and skin with greater detail, but the benefit depends on viewing the screen from an ideal distance so the sharpness of the images is clear, but the tiny points of illumination aren't individually distinguishable. According to standards set by the International Telecommunication Union, that ideal distance is 3 times the height of an HDTV screen, 1.5 times the height of a UHDTV screen and .75 times the height of an 8K screen (Editor's note: the link could be paywalled; here's a PDF copy of the newspaper). Given those measurements, viewers should sit 6 feet away from a 50-inch HDTV with a 24.5-inch tall screen. But they should sit just 3 feet from a UHDTV of the same size, closer than most Americans prefer.Read more of this story at Slashdot.
Original Link: http://rss.slashdot.org/~r/Slashdot/slashdot/~3/2MgNwLLeEeY/latest-tvs-are-ready-for-their-close-ups
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