This might just be my next monitor. Higher than 4k res, IPS, 40 inches. I'm guessing this has the new 40inch 5k2k LG panel announced late last year. Please, please, please LG & Dell, don't let this one have deal breaking issues!!
This issue is my main problem when buying a new display. Its honestly a lottery, and it has been this way for as far back as I can remember with TFT monitors. I honestly don't care for HRR or HDR or 100% DCI-P3 coverage, or even perfect out of the box color calibration or zero BLB.
I just want...
It has been said many, many times, but the monitor industry moves incredibly slowly compared to almost every other tech sector. Just look at how many years it took to move from 768p displays in laptops to higher res, better quality panels, while phones were already at 1440p and TVs were going...
The 2019 has a slightly newer panel with better contrast ratio and supports a basic (useless) form of HDR. Both monitors exhibit noticeable PWM flicker (around 240Hz IIRC).
I do believe that this particular monitor has been discontinued. I can't seem to be able to find it in stock or available for order anywhere in the EU. Perhaps LG is preparing its successor, hopefully with the kinks ironed out (image retention etc.). The only other monitor I know of that uses...
BGR subpixel arrangement was a given - this is yet another TV panel jerry rigged into a monitor. Unfortunately there exist zero RGB 4k panels over 32" today.
And while Windows Cleartype calibration does mitigate most of the issues (at least OS-wide), a lot of older apps don't adhere to it and...
I read rtings review and they mention an abysmally low 240hz PWM frequency for the backlight. What the hell is LG thinking? This looked like the ideal monitor for me, but that PWM flicker.. ouch. Even the muc maligned 43ud79 had a firmware update that increased PWM frequency to 480Hz IIRC.
Lenovo also has a page dedicated to this issue re: LGs panels first used on the X220 back in 2011. I believe this was the first widespread IPS image retention issue.
https://pcsupport.lenovo.com/gr/en/solutions/ht051485
I do believe that if one panel exhibits this, then all of them will do it...
As an owner of a 4096x2160 monitor, I completely agree. This 'wider' 2160p resolution is ideal both from a usability as well as a bandwidth aspect. And at 38 inches, with a slight curve, I'd buy this in an instant (even with image retention)!
Sadly this kind of image persistence is the norm for newer, high res IPS panels. It's not true burn in, since it disappears after a few minutes in most cases. But it is annoying, nonetheless.
The only thing that bothers me about this otherwise attractive monitor is that it apparently does not utilize a true 10-bit panel, but rather a 8 bit + FRC one. It's 2018, I would expect all 4K HDR panels to be true 10-bit.
As for local dimming that is a bonus for sure, but I don't expect it to...
This is normal, these LG sets have especially aggressive ABL (automatic brightness limiter) settings. This cannot be changed, sadly. You could however lower the overall brightness making the change less noticeable. The '18 sets I believe have less aggressive ABL.
Vincent is probably the best TV reviewer online. His written hdtvtest.co.uk reviews and youtube videos are all very informative and thorough.
Hopefully he will start reviewing computer displays as well in the future.
I believe someone in this thread mentioned how the firmware update did increase PWm frequency considerably. Also, the Japanese review site does include the statement regarding 480HZ:
"Also, the PWM frequency has been increased from 120 Hz to 480 Hz in the firmware update."
Which monitor are you using? There are DC controlled LED backlights, and indeed a lot of supposedly PWM free monitors just use a very high frequency. Have you tried the 'waving hand in front of screen' trick?
Wow, indeed this is a VA panel. I was under the impression that LG user only their own IPS panels in their monitors. They don't make VA panels, so this must be an outsourced one
The 32UD99 is available in Korea, it seems. So availability for the rest of the world isn't far off. I'm also waiting for it. The Samsung seems nice on paper, but I believe it's BGR (as per their other 32inch 4k models). IPS is the way to go for color critical work but - you need a good return...
IPS image retention is not a problem with 90% of the panels out there. However, there are a few 4k TV panels that exhibit this phenomenon, and some of them are used in large 4k monitors, which poses obvious problems
So we're in the middle of a heatwave here in Greece (room temp at around 28 degrees), so I decided to go ahead and delid my trusty 4970k to see what the fuss is all about. I used the Rockit88 tool - delidding took me a minute. Great tool, highly recommended.
After cleaning the stock TIM and...
The Philips has a known bug,skipping a frame every 2.5 secs as per the PCMonitors review. I have no idea if the Viewsonic has this bug or not.. But they use the same panel, so you risk image retention (which has been reported with the Acer ET43k, also using TPVision panel)