Colour properties of laptop display

[StarCCXO]

Can anyone shed some light on the colour properties of my display? It's a "

bought in November 2018.
I'm using it for a photographic society and whilst colour accuracy and gamut isn't all that important for the laptop, we are seeing big differences between the images projected using our Canon projector and the laptop display, despite having adjusted both using Color Munki, which theoretically should get them both as close to sRGB as possible. Some members blame the projector, others blame the laptop, but they are no more expert on digital colour management than I am.
Any comments or help appreciated.
Thanks.

 

[Oussebon]

That image doesn't seem to show up - perhaps you can upload to IMGUR or something and link here if you are having issues uploading directly to the forum?

 

[StarCCXO]

Sorry, it appeared when I wrote the initial message. I see it's only the file name now in the message, although there is an attachment now which shows it..

Anyway, it had said "Cosmos Series: 15.6" Matte Full HD IPS 60Hz 45% NTSC LED Widescreen (1920x1080)"

I suspect the key statistic in terms of what I'd like to understand is, what does "45% NTSC" mean? Many monitors these days for photography or similar purposes specify the proportion of certain colour spaces covered, eg "90% of sRGB", and the contrast ratio. I have a Dell external monitor for my personal PCS Lafitte laptop, which I use for photo editing, as it is such a monitor and after calibration seems to be good for this. The Lafitte internal and Dell external displays look fairly similar. However the Cosmos display looks very different to the Canon projector display, and I'm trying to understand whether I am seeing a limitation in the Cosmos display or the Canon one. If the latter then we'll have to buy a new projector, but it's a £3,000 bill for a good photo projector if we do! Maybe the ColorMunki can adjust the Lafitte display but can't adjust the Cosmos display properly.

 

[Oussebon]

A 45% NTSC display will generally have lower sRGB etc than a 72% NTSC one. So I would expect your Cosmos to have worse colours compared to some other laptops and desktops. See discussion in this thread:
#https://www.pcspecialist.co.uk/foru...entage-to-a-gaming-display.60234/#post-421079

You say you're comparing your Cosmos display to the projector, and comparing the Lafite display to your Dell monitor. You need to compare them against each other e.g. compare both your Lafite and Cosmos and Dell screens together, using the same image.

If you plug the Cosmos into your Dell, and the image looks like normal on the Dell, same when you plug the Lafite into the Dell, but still looks off colour on the Cosmos, it's the Cosmos's display / display settings.

 

[StarCCXO]

Thanks, that's a helpful thread. I'm learning slowly.

The issue really is comparing the Cosmos with our Canon projector in a camera club environment. People can't resist looking at the laptop screen and usually think it's better than the projected image, but a far as I can tell the 45% NTSC puts it behind the projector, although I'm awaiting Canon's response on this as they don't publish a gamut spec for it as far as I can find.

I see now that 45% NTSC corresponds to about 70% sRGB which is poor, whereas 72% NTSC corressponds to about 98% sRGB which is acceptable as most high quality digital SLRs use sRGB. Helps when we all speak the same language! My Dell is specified at 98% sRGB which explains why it beats my Lafitte and the Cosmos for photo editing.