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SvennoJ on 21 March 2016
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Here is an excellent summary and some logos to look out for when buying a tv

http://www.acousticfrontiers.com/uhd-101-v2/


For consumer displays

  • Image Resolution: 3840×2160
  • Color Bit Depth: 10-bit signal
  • Color Palette (Wide Color Gamut)
    • Signal Input: BT.2020 color representation
    • Display Reproduction: More than 90% of P3 colors
  • High Dynamic Range
    • SMPTE ST2084 EOTF
    • A combination of peak brightness and black level either:
      • More than 1000 nits peak brightness and less than 0.05 nits black level
        OR
      • More than 540 nits peak brightness and less than 0.0005 nits black level (note the interesting “fudge” here, clearly something included in the spec for low light output OLED TVs…)

Sony uses it's own sticker

Interestingly, Sony, despite being a member of the UHD Premium alliance, has a different “sticker” that it is putting on it’s displays. We think they are doing this because they also have projectors, and to have a consistent “sticker” they need their own standard, since the projectors can’t hit the peak brightness / black level standards required for the UHD Premium “sticker”.

That leaves me with a bit of a dilemma. I was wondering why it took so long for 4K projectors to become affordable. I love watching movies on a projector, yet it seems they won't be able to support the brightness range. I guess what's good enough for cinema is good enough for me. 92" tvs will probably stay well out of my price range.


And a word of caution

There are multiple HDR standards at this point, and it is not clear which one will become dominant in the market. HDR10 and Dolby Vision appear to be the front runners, but there are others lurking in the wings such as Hybrid Log Gamma (HLG).

It’s quite the “evolving ecosystem” at this point. Even if you buy a display with both HDR10 and Dolby Vision (which limits you to flat panel TVs), the amount of light output the TV can put out will likely be on an upward trajectory for the next few years. The TVs you can buy now are limited to about 1,000 nits, but the Dolby Vision standard can see a future with 10,000 nit displays!

More about that in the article