Blur Busters Forums

Hello there, fellow busterians!

Okay, I'm trying too hard.

I'll start by saying I'm very excited to finally own a high refresh rate monitor, and as many have said in the millions of reviews I read..."I'll never go back". Thanks for being an awesome community and I hope that my noob-ness isn't too off-putting.

All that being said, I recently picked up a VG248QE from Newegg and have concerns about the consistency of the panel. I'm not sure what the exact term is for the issue I'm having but I think the attached photo is worth a thousand words:



This photo is with with lightboost enabled at 10% brightness. As you can see, the top left corner of the display appears far more...brown...than the rest of the display, and when pure white is shown it is very obvious and distracting. This is not something I can calibrate away and appears to simply be an issue with the panel. I know that TN panels aren't the best when it comes to color reproduction, but this seems to be something entirely different. Should I be submitting an RMA for exchange? I've also been considering getting a refund and purchasing the XL2411Z instead, as the PWM flicker of this display seems to give me heavy eye fatigue and headaches (or so I suspect).

Thoughts? Thanks to all!

Idk.....that looks pretty bad. The top left of TN's always get brown from color shift if you look from them from a FAR bottom right angle or right next to them, looking at the bottom right corner, but no way it should be that bad from that distance. Might be RMA'able.

That uniformity on that VG248 sample makes my 2720Z 27" slight uniformity issues around the center (nothing out of the ordinary) look like a polished, jeweled diamond from the plains of Nirvana....

Well, I feel less crazy already. Like I said, I understand uniformity is an issue, but man...it seems REALLY far from what it should be. Picture of my 23" Apple Aluminum Cinema HD display for comparison (be kind, it's not calibrated), which is a TN panel as well...albeit clearly a higher grade TN panel:



Would you go with another VG248QE or move to the XL2411Z?

*Edit: Added question regarding BenQ

Hi, that looks pretty bad just like my old korean TN monitor use to have but I have worse, all the corners-North E-W, SE, SW seems to be darker than the rest. I'm 100% sure you will notice it when you play the game Witcher 2 the uniformity of the screen. Now good thing I own an XL2411z and it doesn't have that. If you don't mind little ghosting issues at less than <60fps (30fps locked games looks worse), go with XL2411z. But I strongly suggest you RMA your VG248QE to get it repaired. IMO VG248QE > XL2411z, I can live with a little flickering than with ghosting.

Btw about the VG248QE and the XL2411Z/2720Z,

in lightboost mode (which all the monitors use), they all look virtually the same if you lower the contrast to 0 on the Benq monitors.
The 2411Z looks IDENTICAL to the VG248QE if you lower contrast to 0, and the 2720Z looks very damn close.

That's just for LB mode though, not Benq BR.
I'll say this
Contrast 0 on 2720Z vs contrast 40 on VG248QE: both look identical in lightboost mode ghosting wise. (try it you'll see).
Contrast 37 (below the white clipping point) has worse ghosting but still great in cd and a 1000:1 contrast ratio on 2720Z.
The worst ghosting (invese ghosting mostly around the middle to bottom) is only apparent in 2D (test ufo) and completely unnoticeable in 3D games like black ops 2. (again this is lightboost).

Benq blur reduction with VT 1500 tweak, however, and strobe duty 000 and persistence 1.0ms (duty 006) or 0.5ms (duty 003 if you don't want any crosstalk at the top of the screen--which seems to look identical to lightboost 120hz's top edge of the screen crosstalk) looks better in 3D games due to the colors not being changed by lightboost, and the same contrast ratio as non LB. The lack of per line overdrive, however, makes the ghosting through AMA look worse (mostly inverse ghosting AGAIN) than lightboost, so 2D side scrollers and some 2D rpg's will benefit more from using lightboost. The per-line overdrive from lightboost affects the INVERSE ghosting the most. You'll notice that with the VT 1500 tweak and contrast "0" and strobe phase 000, if you run testufo, you will see the BOTTOM of the screen's REGULAR ghosting almost completely disappear. It's literally the opposite of when you put contrast 0 (on the Z monitors) in lightboost mode---the INVERSE ghosting in lightboost (at the bottom) also disappears.

TL;DR: I'd much rather get a Benq over a VG248 ANY Day, even if you don't have an Nvidia card or laptop to use as a surrogate to activate lightboost...

Falkentyne wrote:Btw about the VG248QE and the XL2411Z/2720Z,

in lightboost mode (which all the monitors use), they all look virtually the same if you lower the contrast to 0 on the Benq monitors.
The 2411Z looks IDENTICAL to the VG248QE if you lower contrast to 0, and the 2720Z looks very damn close.

That's just for LB mode though, not Benq BR.
I'll say this
Contrast 0 on 2720Z vs contrast 40 on VG248QE: both look identical in lightboost mode ghosting wise. (try it you'll see).
Contrast 37 (below the white clipping point) has worse ghosting but still great in cd and a 1000:1 contrast ratio on 2720Z.
The worst ghosting (invese ghosting mostly around the middle to bottom) is only apparent in 2D (test ufo) and completely unnoticeable in 3D games like black ops 2. (again this is lightboost).

Benq blur reduction with VT 1500 tweak, however, and strobe duty 000 and persistence 1.0ms (duty 006) or 0.5ms (duty 003 if you don't want any crosstalk at the top of the screen--which seems to look identical to lightboost 120hz's top edge of the screen crosstalk) looks better in 3D games due to the colors not being changed by lightboost, and the same contrast ratio as non LB. The lack of per line overdrive, however, makes the ghosting through AMA look worse (mostly inverse ghosting AGAIN) than lightboost, so 2D side scrollers and some 2D rpg's will benefit more from using lightboost. The per-line overdrive from lightboost affects the INVERSE ghosting the most. You'll notice that with the VT 1500 tweak and contrast "0" and strobe phase 000, if you run testufo, you will see the BOTTOM of the screen's REGULAR ghosting almost completely disappear. It's literally the opposite of when you put contrast 0 (on the Z monitors) in lightboost mode---the INVERSE ghosting in lightboost (at the bottom) also disappears.

TL;DR: I'd much rather get a Benq over a VG248 ANY Day, even if you don't have an Nvidia card or laptop to use as a surrogate to activate lightboost...

Thank you for this, I really appreciate your attention to detail. I'm still new to this whole 'blur reduction' thing, so I'm still figuring everything out. Long story short I've gotten Newegg to agree to RMA the monitor and I'm trying to decide if I want to swap for a new VG248QE or get my cash back for an XL2411Z. I also might just wait for a new line of monitors from BenQ, which seem to be right around the corner. I've seen that you're clearly quite active here, so I hold your opinion with high regard, and I believe I'm going to go BenQ. Thanks again!