Originally Posted by darksets
Thanks for the explanation. I'm still a little confused by all the possible combinations. In another thread here ("Ultra HD Blu-ray Spec at CES 2015"), Scott Wilkinson writes:
"Also, players must support frame rates up to 60 fps and color gamuts up to BT.2020 with 10-bit resolution."
In your table I don't see a combination of 60fps and 10bit color resolution. You also specify the color standard in a different way so I'm not sure if it translates to the same thing. So I'm still unsure what's going on but I appreciate your and the other knowledgeable people's effort here at AVS, to inform the rest of us.
You need to do some reading up on the topic. Currently there are literally NO displays (flat panels or projectors) that fully support REC2020 color space. This is a limitation of the current light source and display technologies. Currently displays based on LEDs, OLEDs, Quantum Dot, CCFL, Plasma, UHP lamps, Xenon lamps, and phosphor wheel/laser illumination cannot create a spectrum of light large enough to create a REC2020 gamut and thus none of the displays can be calibrated for REC2020. What this means is that at first REC2020 color gamut will not be used. They will most likely use REC709 or possibly P3 color space for UHD BD. The use of REC2020 is still years off. The same goes for 60fps material. There aren't any films I know of that are 60fps and most of the amateur/consumer grade 4K recording gear out there records at 8bit 4:2:0 so these Sony units will be more than capable to display the content correctly. The 600ES/350ES cannot produce a P3 color space but the 1100ES has a special filter which allows this. So that unit is the most future proof.
The reason why I say you need to read more into it is because I think you're confusing a lot of what the Scott Wilkinson article says because it's also missing a lot of information so people are coming away from it less informed compared to when they first went in. The UHD BD spec will be "loose" in it's specs. A lot of what Scott wrote neglects further clarification. What I mean is that while he says the players need to support REC2020, he neglects to say that it's not the only color gamut supported. It will also support P3 or REC709 either separately or will adopt SMPTE 2086 so the correct color gamut information can be generated for a display that doesn't support REC2020. Then he mentions it will need to support 10bit color resolution, but neglects to say the spec will include support for UHD video anywhere from 8 bit to 16 bit video with support for various chroma subsampling rates at each bit depth.
The format will have "loose" specs because the BDA realizes this format is calling for things that don't exist yet and for things that current displays cannot do. So while Scott's article says certain things those are not the specs of all video that UHD BD will have. It's more than likely, for a number of years, we won't see anything but 8bit (possibly 10bit) 4:2:0 UHD video color graded for a REC709 color space with a possibility in the future for UHD BDs to come out with higher bit depth, chroma subsampling, and content color graded for a larger gamut. This format is no where near as strict as 1080p blu-ray is and they're doing it like this to ensure this format is as future proof as possible.