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tornado99

macrumors 6502
Original poster
Jul 28, 2013
490
468
Having owned quite a few Macs over the years I've come to realise that the screen that looks best, to my eyes, is an elusive combination of pixel density, brightness, contrast ratio, lcd covering layer, and the frame around the lcd. Here is my list of the best displays ever:

(all brightness and contrast values measured myself with my colorimeter)

My list

1. iMac 21.5" Retina 4K+ (219 ppi, 610 nits, 1125:1 contrast, fully laminated glass with plasma deposited anti-reflective coating, black bezels)

This for me is like the Kindle Voyage of Mac displays. Created using the most advanced technical processes you could imagine for a consumer device, and a razor sharp feast for the eyes. The thick bezels are actually great for focusing on the display content. I still use one every day. If only they made a M4 machine with this display, life would be perfect!

2. LG Ultrafine 24" 4K (186 ppi, 615 nits, 1250:1 contrast, semi-gloss smooth plastic layer over the lcd, black non-flush bezels)

I read somewhere an LG engineer saying this is the best Ultrafine panel they made. No pink fringes or controller issues. Text looks deep black. Slightly softer than the iMac as I run it with 120% scaling, but very clear and pleasant on the eyes.

3. iMac 24" Retina 4K+ (218 ppi, 485 nits, 1100:1 contrast, fully laminated glass with unknown anti-reflective coating, minimal bezels)

I own this, but don't particularly like it! Viewing angles aren't great and somehow it doesn't have the "richness" of numbers 1. and 2. on my list.

Probably amazing (but I don't own one)

4. iMac 27" Retina 5K - i am guessing Apple went to the same effort to make this display as great as it's smaller sibling

Should be great, but aren't

5. Apple Cinema Display (600 nits, 1000:1 contrast, fully laminated) - I have seen this in various places and felt it to be an underwhelming experience. Probably that low contrast ratio. There are now 2000:1 5K IPS panels but Apple haven't used them.

6. LG 21.5" and 27" Ultrafines - unless you were lucky these were plagued by problems involving the optical adhesive ageing badly, and dead controller boards

Anyone have their own preferred list?
 
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@tornado99 "Probably amazing (but I don't own one)
4. iMac 27" Retina 5K - i am guessing Apple went to the same effort to make this display as great as it's smaller sibling"


I find, from experience of owning several, that Apple's best 5K screens are from the iMac Pro.
I think they had an extra layer of quality control on the production line when they decided which panels would be built to fit in the iMac Pro.

But I guess that the regular iMac 27" produced after about 2018 also benefitted from the attention to detail that Apple brought to LG's production line when they introduced the iMac Pro,
 
@tornado99 "Probably amazing (but I don't own one)
4. iMac 27" Retina 5K - i am guessing Apple went to the same effort to make this display as great as it's smaller sibling"


I find, from experience of owning several, that Apple's best 5K screens are from the iMac Pro.
I think they had an extra layer of quality control on the production line when they decided which panels would be built to fit in the iMac Pro.

But I guess that the regular iMac 27" produced after about 2018 also benefitted from the attention to detail that Apple brought to LG's production line when they introduced the iMac Pro,

Interesting to know. Just from the chemistry of liquid crystal even from the exact same panel (here LM278QQ1) you will always get some units that outperform the spec in terms of contrast ratio or brightness. Perhaps Apple was selecting those for the Pros.

Also I dug this up from an Apple press release in 2014. Possibly it applies to the 21.5" iMacs too.

To improve the contrast ratio, iMac with Retina 5K display uses a new photo alignment process and a compensation film to deliver blacker blacks and more vibrant colours from any viewing angle.
 
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