LG 34UC79G - 34" 21:9 1080p 144Hz IPS

RidingTheFlow

RidingTheFlow

RidingTheFlow

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LG 34UC79G - IPS 34" 21:9 1080p 144Hz FreeSync

First test results are in!
Still have a hope for this panel, key points:
- contrast about 1:1300
- response time is not stellar, but at least looks average for modern IPS, and sensible overshoot. But more detailed tables would help, maybe some sluggish transition hiding - waiting for tftcentral review ;)
- uniformity on tested sample is quite good, 80% max-min white and 50% black (esp. for pretty low black levels for IPS panels)
 
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giubox360 said:
@
G sync/freesync at high fps usually is not so important.
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Huh? It's very important for smooth motion (which whole point of high FPS). For high refresh monitors its even more important than for 60Hz ones.

Unless your games are able to consistently work at 144Hz, without adaptive sync it will only be able to produce multiplies of max framerate (144/72/48/36/etc). This causes "jitter" when framerate switches to next available one. Also for example, you won't be able to display 30/60Hz movies smoothly if you set your desktop to 144Hz.
 
giubox360 said:
I returned the LG 34uc79G 144 hz because is a bad panel with low contrast and very low brightness, " LG motion blur reducton 1 ms" doesn't work at all, and the curvature is too small.
Acer z35 cub or g-sync is an other world, better colours fidelity, very high brightness and 3 times the contrast of normal ips panel.
(only problem is the black to white 0-50 50 ms refresh time, but is not a big problem the panel is fast in 80/90% of the situations with a good 9 ms average in response time @144hz OD On and 5,7 ms if we forget that problem)
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Funny that I've returned Acer Z35 because I didn't like it a bit. Curvature is too high, gamma shifts toward edges and black smearing+shimmering was apparent in any dark games (like space sims, Dark Souls or stealth action ones).

So I'd reserve my judgement about 34UC79G. But I won't rush buying it either - since a lot of early buyers who were otherwise satisfied with it reported same bad light bleed issues as with other 34-inch LG IPS panels (which you never see in tftcentral reviews :p unlike, say, prad.de ones).
 
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Slower response time in this case is direct tradeoff for high contrast and low glow (way LCD tech works more dense is the "shutter", more time for it takes to change state).

edit: Ignore my firmware update question, just noticed you need a programmer. That's a bummer, and I think I will have to pass for now - monitor firmware updates via service hardly been a positive experience.

Looks like I will wait for G-Sync version instead ;)

P.S. This was actually kind of ridiculous - almost like LG firmware engineers don't have proper measuring tools and are not actually checking pixel response curves when developing, relying solely on their eyes and theory. Otherwise I don't understand how such firmware could've made into production.
 
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giubox360 said:
Ahahaha it's not true, it has only one passage of 50 ms on black to white transition (at 0-50) if you set fast overdrive @144hz. Not problematic (I had issue only with Alien isolation or very dark games) if you ignore that passage the average respose time for acer Z35 or acer XZ35 @144hz is 5,7 ms that is very good.
If you don't ignore that passage the average response time is about 9 ms.....not 57 ms LOL
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Well, I had Z35 for quite a while and it streaks any dark colours like crazy, with any overdrive or frequency. I hardly see how you can ignore it unless you never show moving dark colour on screen - which main point of having good-black VA panel.

Average response time as single number is rather meaningless - because you care about *all* transitions being good, not having display showing grey colour only all the time.

I've seen plenty of high refresh monitors and Z35 simply does not have motion clarity that proper high refresh panel should, its looks just like overclocked 60Hz panel (and pretty blurry one at that).
 
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