[nomel]

Most modern displays are calibrated, to some reasonable level, and can easily accommodate the very limited gamut of an old CRT, especially anything supporting HDR10. I suspect this is more of "they need to be fudged so they're wrong" more than anything.

[M95D]

I don't think old CRT gramut is "very limited". Only plasma screens were as good.

[Dylan16807]

Plasma has great contrast and a slightly wider gamut than a CRT. Neither one have particularly good gamuts unless you're comparing to sRGB. Many current screens can do much better.

[M95D]

> slightly wider gamut than a CRT

Why is that? It's the same phosphors.

[Dylan16807]

Do they usually use the same ones? I don't know, I just went based on some diagrams in a paper comparing techs.

I found something more useful though: https://www.panasonic.com/business/plasma/pdf/evaluationplas...

"Professional CRTs were manufactured to the SMPTE‐C standard gamut, which closely matches the NTSC standard and slightly exceeds the EBU (PAL/SECAM) standard. Any limitations on the reproduction of certain color shades were due to the maximum saturated levels of red, green, and blue phosphor compounds used in these monitors. While coverage of SMPTE‐C and BT.709 color spaces isn’t difficult to accomplish with a CRT, coverage of new, extended color gamuts such as xvYCC and the digital cinema P3 minimum standard gamut is problematic for CRT phosphor imaging. At best, a well‐designed CRT monitor could expect to cover about 60% ‐ 70% of these wider spaces, which typically push deeper into the green section of the 1931 CIE “tongue” color diagram."

This shows plasma as a little bit better than CRT, and again lists the limits of CRT gamut.

Lots of modern screens can do P3 and beyond. Some even get within a few percent of Rec.2020 https://upload.wikimedia.org/wikipedia/commons/thumb/b/b3/CI...

Maybe better phosphors are possible? Or you could put a quantum dot layer on top of CRT if you really wanted to? But I'm okay with dropping CRTs.

[M95D]

Thanks for the research. You might be right. I had CRTs and plasma side-by-side and then I had plasma and IPS side-by-side. Plasma and CRTs looked about the same to me, while IPS looked a bit worse, but that might be because of analog vs. digial inputs and calibrations. The CRTs had an auto-calibration function (Sony G520), but other than that I never did a color calibration on any of them.

[Dylan16807]

I wouldn't be surprised at all if the particular IPS panels you looked at were worse, but we can do better on displays that try, especially these days.

Part of the issue is that so many things are calibrated for sRGB and that is a pretty small gamut.