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Upgraded my PG35VQ to the PG32UQX

SidneyDean
By SidneyDean
in Displays
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4 hours ago, tresnugget said:

I'm curious as to why you got tired of ultrawides. Last year I upgraded my PG27UQ to the PG32UQX and the blooming was so much worse than I expected. Don't get me wrong, HDR content is usually jaw droppingly gorgeous but I've been getting into Star Citizen and with Auto HDR enabled the blooming can be murder with the stars in the background.

I'm considering going dual monitor and grabbing the AW3423DW for my main gaming display and using the PG32UQX as a media monitor. The will be my first ultrawide if I decide to pull the trigger so I'm just curious as to why you decided to ditch the format.

because not all games support ultrawide and they look terrible on ultrawide with the stretched out edges. some games that do support ultrawide it looks better because of the wide viewing angle but i still prefer the 4k experience to be honest. i heard a lot of good reviews on the AW3423DW but coming from a very good 1440P ultrawide, the PG35VQ, which is even though 5 years old, is still probably comparable to the alienware, with a better refresh rate at 200hz, i don't regret switching to the PG32UQX. Everything just looks so much better in 4k. 😆

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PG35VQ is way more colorful than that AW3423DW.
 

QD-OLED is not worth it. It won't look good in bright HDR.

 

1. It's not a true HDR 1000 monitor that requires at least 850-1150nits in 50%-100% window. It's just a HDR 400 (even less due to ABL) OLED  with gimmick 1-2% window size that reaches 1000nits. You will have frequent ABL in HDR 1000 mode. 

 

2. Despite other issues, the monitor flickers in way that's not good for the eyes. 

 

 

=============Part 1: flickering================

 

To record the flickering, the camera shutter speed is set below 1/1000.

 

In the below tests, the monitor flickers. The flickering is not perceptible to human eyes but is very prone to eye strain compared to the traditional DC dimming or high-frequency PWM dimming.

 

Due to OLED's physical properties, changing the current intensity alone will impact both the brightness and the color accuracy. OLED manufacturers have to use PWM combined with their analog algorithm, aka "emulated DC diming", to display color with moderate brightness control. But OLED still flickers due to the imperfect hybrid implementation.

 

In this case, AW3423DW is trying to use emulated DC dimming but ends up making a worse result. The flickering frequency is the same as the monitor refresh rate. The frequency is low.

 

To make things worse, due to the lack of a polarizing layer, it needs to be used with dim ambient light; due to the ABL, its brightness fluctuates. In the particular video, every parry comes with ABL though the camera doesn't show it clearly. Eye strain can happen very quickly in scenes where brightness fluctuates even if the overall brightness is less than 400nits.

 

The combination of these is commercially in a grey area where whether or not it results in eye damage in long-term use. In general, the flicker is not healthy for the eyes, especially in a dim environment.

 

The package, the manual, and the Dell website only describe "flicker-free" as far as one of Dell's product features without any indication of a flicker-free TÜV certification.

 

There is a TÜV certification on Certipedia stating this model was certified for flicker-free. From the description, the panel is specifically mentioned as a flat panel. It can be an early model.

 

The market trick is that Dell can still trademark their product features as ComfortView that includes only low blue light TÜV certification.

 

I don't recommend this monitor for the long intensive daily drive if a gamer only uses one monitor in a basement for 3 years.

 

If you have multiple monitors and tend to replace them every year, this monitor should be probably fine.

 

 

 

=============Part 2: HDR================

 

Now I talk about HDR: 

 

HDR 1000 videos are from The Spears and Munsil UHD HDR Benchmark.

 

This comparison needs at least two exposure settings for accurate HDR comparison in SDR pictures. This is how to compare HDR in SDR mode. 

 

The exposure is set at ISO 100, shutter speed 1/125, and ISO 100, shutter speed 1/25. 

 

The middle monitor shows the reference luminance level. When the curves are flattened at a top level, that level is where 1000nits is. 

 

In the pictures with 1/125 shutter speed, details are preserved on both monitors. In the pictures with 1/25 shutter speed, the details are not preserved but have more pronounced brightness in SDR. The difference regarding relative brightness is represented at both settings though a true HDR 1000 monitor appeared to be overexposed in 1/25 while AW3423DW appears to be dim in 1/125. I expect you can see it in the comparison to know that a true HDR 1000 monitor delivers 2x-3x more luminance, aka more contrast to the eyes, than AW3423DW in some high APL 800nits scenes without losing any details or causing distracting blooming. Therefore, a true HDR monitor delivers more realistic images. In HDR (also in SDR), except fast pixel response, AW3423DW is not at the same level as a true HDR 1000 monitor due to ABL. AW32423DW only looks the same when it displays small window size with a large black background. Also, in these high APL HDR scenes blooming is not noticeable because central object is emitting 1000nits luminance, making edge blooming unnoticeable to the eyes, even to the camera. In average HDR, blooming is not noticeable either unless you actively search for it. 

 

I have to warn you most people don't know HDR very well. They also don't have both monitors to compare but low brightness OLEDs. I suggest you don't listen to people who don't know how to use a true HDR monitor but a mere 200nits full-field OLED TV. 

 

OLED is always a mid-tier monitor and it is going to be a mid-tier compared to the FALD LCD. 

 

Its brightness is struggling. So does its contrast. I mean what I say: The contrast of OLED loses to FALD LCD if the brightness is not enough. The infinite (x/0) contrast of OLED is not the true contrast due to the compromise of brightness. The higher the brightness goes without rising the black level, the more contrast the monitor displays. And FALD LCD has more contrast in this regard. It's also why the premium/flagship product out there is always FALD LCD. Most people don't understand it. 


In some cases, a true HDR monitor with its caliber in SDR 400nits can look even better than AW3423DW in HDR when ABL kicks the OLED below sub 400nits. 

 

Ture HDR 1000 vs AW3423DW HDR

Spoiler

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YCbCr SDR 400 vs AW3423DW HDR

Spoiler


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IMG_20220619_064011

 

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=============CONSLUSION ================

 

The OLED or QD-OLED is struggling. Brightness is not enough. And PWM fatigue is more severe because the OLED is trying to use emulated DC dimming but end up making a worse result. The flickers frequency is the same as the monitor refresh rate. The frequency is low. The flicker is not healthy to the eyes especially under a dim environment. My eyes become rather irritated when looking at the monitor. It's not as comfortable compared to other true HDR 1000 monitors even though other monitors are much brighter.

 

The traditional DC dimming or high frequency PWM won't have the problem and it is safe to use for a long time. And the HDR monitor is going to hit 10,000nits for image quality.

 

The comparison of the latest QD-OLED vs a 4-year-old FALD 512-zone true HDR 1000 monitor is made to prove this point. 

 

In order to archive a high-level HDR performance, OLED has to deal with flickering and brightness one way or another. But that won't happen very soon. 

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