Originally Posted by 6athome
Originally Posted by fafrd
Thanks for the link. Makes it sound like all of these UHD TVs may end up being ahead of the curve (though if the only FALD panels are 4K, the extra resolution and shadow detail are probably sufficient reason to take the plunge, even if compatibility with the future UHD standard that emerges proves to be a problem...
The REC 2020 standard goes up to 12 bit and can handle 8K 36 billion colors.
From what I understand, the 12-bits-per-color is less critical than the expanded rec.2020 color 'triangle'
If rec.709 was expanded from 8 bits to 10 bits or 12 bits, there would also be 38 billion colors (12 bits), but those colors would all be within the same
rec.709 color triangle that we calibrate to. And those 10-bit or 12-bit colors could always be 'rounded down' to the nearest 8-bit color within the rec.709 color triangle, so the image would look similar color-wise, but just not as smooth...
Since rec.2020 expands the color triangle significantly
(look at the 'COLORS' section of the 'flatpanelshd' article you pointed us to), any the rec.2020 colors that fall outside
the rec.709 color triangle (but within
the rec.2020 color triangle), cannot
be represented by rec.709, even if the number of pits per color were expanded from 8-bit to 12-bit...
Bits of precision is important, especially for high dynamic range (high contrast with good shadow detail with little/no banding), but I believe that 'expanded-color-gamut' refers at least as much (if not more) to the increased color triangle of rec.2020 and all of the colors that cannot be represented by rec.709, even if the bits of precision were increased so that there were a full 38 billion colors available within the smaller rec.709 color triangle...