Blur Busters Forums

https://www.bilibili.com/video/BV1L9TE6eEoA/
First review is in.
DyAC3 seems to only be a increase in the total zone backlights (10→24), which BenQ/Zowie calls "Mini-LED"
No VRR+PWM like Pulsar.



It is a QD-based WLED backlight.


Here's a (seemingly) 1920px/s TestUFO pursuit photograph comparing a few models:


First thoughts from this review:
Note: take this rant with a grain of salt, as I don't have concrete oscilloscope values. Relying on camera hides actual reality
Simply based visually analysing the pursuit photographs, DyAC3 seems to target a decent pulse width target
Namely:
~1 px of blur (which I theorise based on comparing a CRT's pursuit photograph & 480Hz BFI) would imply that, on 1920 px/s @ 360 Hz, it's targeting a effective motion clarity of ~1920 Hz
This implies a ~18,75% pulse width... which is a good hint that the implementation is decent.

A CRT, in comparison, is perfectly clear (<1px of blur) at 3000 px/s on any refresh rate the user chooses

240Hz BFI on a 480Hz OLED @ 960px/s (TFTCentral)

When comparing to the XL2566K (techless review) and the XL2566X+ (rice's testUFOs), the XQ2566X seems to be sharper than the 400Hz DyAC2 display.

What's odd to me in these collections of pursuit photograph is that the Pulsar one seemingly doesn't fit in with other reviews at the same pixel speed.
The Pulsar pursuit of this review implies a ~2-4px of blur @ 360Hz strobed (VRR doesn't work, so it's ULMB2, which is grossly inaccurate.
According to TheDisplayGuy's review, user-shot smartphone photograph, TFTCentral's review
The UFOs in these reviews don't seem similar to the review's Pulsar photograph?

I wouldn't put my trust in the G2G RT heatmap in that video, as it's seemingly 10-90% non-gamma corrected data.

TLDR:
More data at different TestUFO speeds or oscilloscope data would be required to get exact data on the duty cycle & achievable "perfect clarity" (≤1px of blur)
This is very likely the best backlight strobing implementation on a 1440p image resolution display on the market.
The 27" model (XQ2766X) likely also fits within this category.
No other implementation comes close to it (either due to KSF fringing, due to insufficient amplitude during strobing or due to mediocre duty cycle which is a symptom of the former)
How do I know?
The only other competitors are:
• TITAN ARMY P275MS Pro (QD but mediocre duty cycle; has VRR+PWM though in form of DYDS TECH 2.0; ~22% duty cycle @ 345 Hz or ~1568 Hz effective motion clarity with a good brightness value; P245MS Pro & it's overclocked 420Hz model Pro+ likely use the same duty cycle target)
• ACER XB273U GX, (QD, which is a similar duty cycle as the image above but with much worse crosstalk due to the slow G2G RT of this IPS panel)
• ACER XB273U KF, (QD, of which there are no reviews; Knowing ACER, it's likely a good implementation; I expect it to target ~20% duty on VRB Extreme (likely ~100cd/m², akin to it's predecessor)
• MSI 274QPF X30MV (QD; ~0,69 ms AKA ~1449 Hz effective motion clarity; 20,7% pulse width @ 300 Hz)
• ASUS PG27AQN & 2nd review (uses KSF; Likely worse voltage amplitude but duty cycle should be adjustable to good values; implies ~20% duty @ PW=40 @ 360 Hz AKA ~1800 Hz effective motion clarity; Seemingly 180–200cd/m²)

I'm happy that the 24" QHD category is gaining traction though, more spatial resolution is always good

What's really bad about this model is the abhorrent price tag for what they're asking.... ~949€ is absurd...

kyube wrote: ↑

02 Jul 2026, 09:31

DyAC3 seems to only be a increase in the total zone backlights (10→24), which BenQ/Zowie calls "Mini-LED"
No VRR+PWM like Pulsar.

Dyac2 was not direct-lit therefore it's wrong to compare just the stripe count.
24 stripes is good enough for scanning BFI.
What's PWM though?
And what is the brightness at minimal pulse width?

It's double the price of the on sale MSI pulsar monitor, crazy

betonKruglosuTotchno wrote: ↑

02 Jul 2026, 14:59

Dyac2 was not direct-lit therefore it's wrong to compare just the stripe count.
24 stripes is good enough for scanning BFI.

Fair criticism, I somewhat glossed over that portion due to my excitement
It is definitely a unique implementation in the space.

betonKruglosuTotchno wrote: ↑

02 Jul 2026, 14:59

What's PWM though?

"Single-strobe PWM" is the term that Chief used when describing impulse-based modes (ULMB,DyAC,MPRT,MBR,...)
See this topic for more information

betonKruglosuTotchno wrote: ↑

02 Jul 2026, 14:59

And what is the brightness at minimal pulse width?

Zowie/BenQ always opts for 2 DyAC modes: High & Premium.
They usually opt for the "brightness-first" approach, where they want to ensure the end-user has "same as non-DyAC use" brightness.
I don't think the review mentioned this specific part, but I expect it to be within the 300-400cd/m2 range.
I'm expecting some reviewers such as TFTcentral or chimolog to provide more information once this model gets available to a wider audience.

MSIfanboy wrote: ↑

02 Jul 2026, 15:33

It's double the price of the on sale MSI pulsar monitor, crazy

The Zowie tax stings a ton on this model... All of their products are sadly like that...
It is definitely a unique implementation though, as the high refresh rate (+240Hz) impulse-based approach with low crosstalk is rare offer on the market.
Especially when considering the pixel density it targets.
For example: In games such as Apex, I'd rather have the XQ2566X (with a screen protector, to get rid of the matte coating) than a OLED of equivalent refresh rate.
I doubt that even the 300FPS w NV Smooth Motion @ 540-600Hz sample&hold approach would convert me to OLED-use for a FPS-locked title such as Apex.

Your suspicion is correct. On Chinese platforms such as Bilibili, video creators often get various specifications wrong.

I’m really looking forward to this monitor, and I’m waiting for more authoritative reviews to come out so I can see whether it’s worth replacing my PG27AQN, which I currently consider to be the best overall backlight-strobing monitor available.

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However, what I actually want to say is the following.

P.S. The following content is unrelated to the topic of this thread, but I don’t know where else to post it, so I’m just posting it here on a whim.

P.S. 2: The following content was translated by ChatGPT.

I’m from China, and I use translation software to read the content on this forum. I studied your posts in depth and bought the TITAN ARMY P275MS Pro and the PG27AQN to replace my PG248QP. In the end, I discovered that the PG27AQN is the best overall backlight-strobing monitor!

By the way, I also bought the PG248QP after reading this forum, and this forum was where I first learned about ULMB 2. Before that, I was using the XL2566X+.

My monitor upgrade path was:

XL2566X+ → PG248QP → TITAN ARMY P275MS Pro → PG27AQN

I mainly play Overwatch. For me, after enabling backlight strobing, the most comfortable monitor to use is:

PG27AQN → XL2566X+ → TITAN ARMY P275MS Pro → PG248QP

I’ll comment on the monitors in order, as a way to give back to you and the other forum users who carefully study monitor backlight-strobing technology.

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PG27AQN

Although the PG27AQN uses a KSF backlight, in the 360Hz + ULMB 2 scenario, all character movement in Overwatch is practically perfect, with no crosstalk at all. It’s simply amazing!

I feel that the KSF backlight has had no negative impact on my experience whatsoever.

On the other hand, at the 240Hz setting you recommended, there is crosstalk when ULMB 2 is enabled, and I always feel that the input latency has increased.

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XL2566X+

When using the XL2566X+ with DyAc 2 enabled, the image is extremely clear, and the red enemy outlines are not affected much by the KSF backlight.

However, the input latency is too high, and that input latency was the reason I eventually decided to sell the XL2566X+.

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TITAN ARMY P275MS Pro

I’m currently typing this reply on the P275MS Pro. It is the only one of these monitors that does not use a KSF backlight, so after enabling backlight strobing, the red enemy outlines look the closest to the native image among all of them.

The image is also very clear after enabling its strobing mode, but there is visible crosstalk, which often makes the image feel stuttery or uneven while I’m playing games. I don’t get that feeling on the PG27AQN.

That said, thanks to its new AUO IPS panel, its overall image quality is quite a bit better than the PG27AQN. The 24-inch 1440p resolution gives it a very high PPI, so in the end I kept it as my daily-use monitor, and I switch to the PG27AQN when playing FPS games.

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PG248QP

Finally, there is the PG248QP. To be honest, this is the monitor I eventually bought after first coming to this forum and reading many of Chief’s posts from 2023 and 2024.

The ideas discussed in those posts still help me a lot today, such as:

* when using a strobing mode, the refresh rate should match the frame rate;
* at lower refresh rates, strobing provides more time for rate-limited pixel transitions, so pixel compliance is better and crosstalk is reduced;
* panel GtG response time;
* duty cycle;
* and so on.

When using the PG248QP, I locked it to 360Hz + 360 FPS + ULMB 2 + PW 100. Under those conditions, I ultimately felt that its overall user experience was worse than any of the monitors mentioned above.

First of all, there is its KSF backlight. God, it is really the one most affected by the KSF backlight among all these monitors.

When I enabled ULMB 2 at 360Hz, the red enemy outlines in Overwatch became far too “obvious,” to the point where I couldn’t clearly see the enemy’s movements or skill usage at all.

I could only change the enemy outlines in the game to yellow, but that created a new problem: the yellow outlines made my distance judgment of enemies very poor.

For example, suppose I’m playing Zarya: a hero whose left click fires a large laser beam, whose right click fires an arcing projectile, whose E gives a “bubble” to a teammate, whose Shift gives a “bubble” to herself, and whose Q fires a “black hole” that pulls enemies together.

When using yellow outlines, my accuracy with right click, E, and Q dropped dramatically.

I also play hitscan and support, and using yellow outlines for those two roles always feels strange. Because of the distance-judgment issue, my timing with Kiriko’s ultimate became much worse.

On top of that, the PG248QP also has a slight crosstalk issue, and sometimes it feels a bit disconnected from my hand movements.

There is always one area of the screen that feels not very clear. I tried adjusting the second ULMB 2 parameter, but no matter what value I set it to, it still felt that way.

In the end, I sold it.

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Anyway, I typed all of this just to thank you for your very generous explanations of monitor specifications and parameters.

You were where I first learned that KSF backlights can cause red artifacts, and also where I learned about monitors that implement backlight strobing well.

At the same time, I hope this can help other forum users choose a monitor.

Finally, thank you again to the founding team of this website, and thank you to the active users here. This website has helped me a lot!

im most likely still gonna buy it though 1440p at 24.1 inch is gonna be fire

Looks like some fortnite creator got one

https://www.youtube.com/watch?v=umKW_ShuEAA

MSIfanboy wrote: ↑

02 Jul 2026, 08:09

27 inch and 24.1 inch, and super expensive, i like zowie, but these comparisons they make are so bad, always super low quality aswell, the person who makes these, needs to be fired asap

I complained about it in the comments on Youtube somewhat harshly and suprisingly they replied! You might post your criticism too if you word it well.

YukiOW wrote: ↑

03 Jul 2026, 09:28

I’m really looking forward to this monitor, and I’m waiting for more authoritative reviews to come out so I can see whether it’s worth replacing my PG27AQN, which I currently consider to be the best overall backlight-strobing monitor available.

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Thankyou - based on your review of multiple monitors and how they relate to one another I have gone ahead and purchased a second hand PG27AQN for a good price ( 260 British pounds in apparently perfect condition and original box. ) .

I was going to wait for dyac 3 however I decided wasn't going to pay 1000 British pounds for a 27 inch even if slightly better and your review tipped me over. The AQN also has glowing reviews elsewhere.

Some second hand pulsars are coming on the market for 400 pounds but from the sounds of things pulsar is not as good as the AQN yet, and perhaps not ever, specifically for CRT like motion clarity.

60 hz isn't important as I have CRT monitors for that. And I absolutely wouldn't play a modern competitive game on a CRT due to inability to have all 3 things : absolute sharpness, high resolution, high refresh rate. I.e Nobody is getting near a sharp 1440p at 360hz on CRT.

I have been using a 500hz OLED but I find tracking people while panning creates blind spots, and because of that I tend to get lost when I have to quickly find a target. Now I may be incorrect, and I may prefer the OLED but at least now I can make the physical comparison for myself.

I am expecting the difference in smoothness between 360hz strobed verses 500hz unstrobed will be minimal, but the clarity will definitely be higher.

I play 4.3 NOT stretched, so eventually my OLED monitor will have a problem balancing the pixels on the display, with the outside bars not being used and worn out.

Latency is a concern, but hopefully ballpark 8ms vs. 6ms isn't all that noticable

I also do a lot of productivity on the same monitor, and static screens on OLED are obviously not good, and I have anxiety about it failing to blank screen as it does happen occasionally, and frankly I can't mitigate a static screen because I need the screen to be static for long periods of time when I work.

I shall see how they compare.

DanDare wrote: ↑

08 Jul 2026, 08:08

YukiOW wrote: ↑

03 Jul 2026, 09:28

I’m really looking forward to this monitor, and I’m waiting for more authoritative reviews to come out so I can see whether it’s worth replacing my PG27AQN, which I currently consider to be the best overall backlight-strobing monitor available.

------------------------------------------------------------------------------

Thankyou - based on your review of multiple monitors and how they relate to one another I have gone ahead and purchased a second hand PG27AQN for a good price ( 260 British pounds in apparently perfect condition and original box. ) .

I’m glad you bought the PG27AQN because of my recommendation. Remember to use the sRGB color gamut; otherwise, the red outlines around characters will be very noticeable. I think the PG27AQN should offer a better overall user experience than your OLED.
:>