Sharp Announces 8K Consumer TVs Now That We All Have 4K (theverge.com)

Thuy Ong reports via The Verge: Now that you've upgraded to a shiny new 4K TV, Sharp has revealed its latest screen to stoke your fear of missing out: a 70-inch Aquos 8K TV. That 8K (7,680 x 4,320) resolution is 16 times that of your old Full HD (1920 x 1080) TV. Sharp calls it "ultimate reality, with ultra-fine details even the naked eye cannot capture," which doesn't seem like a very good selling point. Keep in mind that having a screen with more pixels doesn't buy you much after a certain point, because those pixels are invisible from a distance -- while an 8K panel would be beneficial as a monitor, where you're sitting close, it won't buy you much when leaning back on the couch watching TV. HDR, however, is something else entirely, and fortunately, Sharp's new 8K set is compatible with Dolby Vision HDR and BDA-HDR (for Blu-ray players). The lack of available 8K HDR content is also a problem. But there is some content floating around. The TV will be rolling out to China and Japan later this year, and then Taiwan in February 2018. Sharp is repurposing its 70-inch 8K TV as an 8K monitor (model LV-70X500E) for Europe, which will be on sale in March. There is no news about a U.S. release.

Comments

Re:Like high-end stereo gear...

[AmiMoJo]

8k resolution is close to IMAX for detail. Not quite as good as 70mm film, but close.

You also have to remember that even if your eyes can't see individual pixels at that resolution (a good thing), what matters is the Nyquist frequency which is half the sampling frequency. That's why CDs sample at 44.1kHz, even though the human ear can't hear much about 20kHz.

Basically 8k reduces aliasing, which is something that the eye is quite good at spotting and makes the image look artificial. That's why most of the 4k demos you see are careful to select images that avoid aliasing.

8k isn't just resolution. When they start broadcasting in Japan for the 2020 Olympics, it will be 60Hz native format, and with a colour gamut beyond what current TVs can display.

8k isn't just a resolution bump like 4k was, where they mostly used the same equipment and some upgraded but fundamentally the same cameras as HD/2k. For example, manual focus is impossible with 8k. Until recently only extremely specialist, power hungry hardware was able to process an 8k video stream and save it to storage fast enough. NHK, the Japanese national broadcaster, has been working on it since the 90s and skipped over 4k to concentrate on it. It's not just incremental, it's a genuine attempt to make video almost indistinguishable from reality.