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Microcenter now carrying the 27" 2560x1440 Korean IPS monitors - Page 69

post #681 of 1116
We just got 30 more of these guys in stock biggrin.gif I work at the micro center in Dallas btw.

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post #682 of 1116
Quote:
Originally Posted by Lexxon87 View Post

So I see it going back and forth here...can anyone confirm whether this new matte version of the Auria is using CCFL or continues to use PWM LED for dimming?
Without a doubt it is LED backlit, and per Grimster's post, is apparently based off the LED version of the U2711.

I feel like I should clarify though that most LED and CCFL monitors use a form of PWM. It's just more noticeable on LED screens.

I can't conclusively state whether this monitor uses it or not. It doesn't seem to, but I may not be sensitive to it. I can't seem to find any in depth reviews of the LED-U2711.

The U2713HM and the Shimian have both been tested by Prad.de though and confirmed as NOT using PWM dimming, so you might want to consider those.
Edited by Booty Warrior - 2/17/13 at 2:11pm
post #683 of 1116
Quote:
Originally Posted by Booty Warrior View Post

Without a doubt it is LED backlit, and per Grimster's post, is apparently based off the LED version of the U2711.

I feel like I should clarify though that most LED and CCFL monitors use a form of PWM. It's just more noticeable on LED screens.

I can't conclusively state whether this monitor uses it or not. It doesn't seem to, but I may not be sensitive to it. I can't seem to find any in depth reviews of the LED-U2711.

The U2713HM and the Shimian have both been tested by Prad.de though and confirmed as NOT using PWM dimming, so you might want to consider those.

Someone opened their AG, it uses CCFL. It uses this panel:
http://www.panelook.com/LM270WQ2-SLA1_LG%20Display_27.0_LCM_overview_5000.html
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post #684 of 1116
I stopped by microcenter today and picked up this monitor (matte version). They did have one glossy version left and clearly the two boxes have different specs. I have it side by side with a Asus 27" 144hz VG278HE (fastest TN panel monitor on the market). Here are my expert thoughts.

First the bad:

1. Unfortunately this monitor DOES, I repeat DOES use PWM dimming. How you people couldn't see this with the pencil test is mind boggling. PWM dimming CONFIRMED. I noticed the pencil strobe effect is not as sharp as LED PWM dimmed LCDs probably because of the CCFL backlight. Also the PWM frequency is half that of the Asus from what the strobed pencil image looks like. So far it definitely feels more comfortable to look at than the Asus and I believe its because the flashes are more wave like instead of on-off like on LED panels, the strobing image confirms wave like PWM since the image of multiple pencils wasnt sharp but an image of blurry pencils.
2. Anti-Glare filter is one of the worse I have ever seen. Its BAD. Looks like the entire screen is covered in dust, luckily we can remove it. The anti-glare filter on the Asus is perfectly clear.
3. Black levels are not that great. Side by side with the Asus, which is a TN panel I think the Asus has an edge. As soon as I powered on the Auria I immediately noticed the not-so great black levels. Blacks have a washout look to them, I dont think this is from the horrid anti-glare filter either. Oh well, disappointed with the black levels.
4. Back light uniformity is not too great. The bottom right portion is brighter than the rest of the screen but you can only notice it with a black screen.

Major input lag on resolutions other than 1440p, this is because the display has to scale the image which takes time, I tried scaling on my GTX660 GPU instead but it didnt help much. The good news it that input lag when running 1440p is low. Side by side with the Asus, which is the fasted monitor on the market, I did a 50/50 test, half a window on the Asus and half on the Auria and moved them up and down. The Auria was not bad at all, only very very slightly behind and it was really hard to notice. I was impressed, this will make a decent gaming monitor as long as you run 1440p resolution on games or you dont scale up a lower res.


The good:

1. Viewing angles are fantastic. Far superior to the new 144hz Asus VG278HE.
2. The grey scale is great. I can see major detail in dark videos that are completely black on the Asus.
3. Zero dead pixels

I have not decided if Im going to keep this monitor.
Edited by Grimster - 2/17/13 at 3:08pm
post #685 of 1116
Why this choice has to be the hardest of all the choices is disturbing to me. I haven't really gotten to "play" with my new "toy" because I can't friggin decide which monitor to buy. I have a budget, and $400 is pushing it. That said, I'm using a 32" TV atm (only 720p), and it seems to do really well on all the tests I've found on the internet (shockingly). Unlike most of the parts in my build, I am having a really hard time narrowing it down. The worst part is I see Pro, Con, Pro, Con, etc posts repeatedly on every monitor I'm considering. I really hate that I'm seemingly going to have to buy/return a few monitors to find one I like. Makes me want to just get the 2312 and be done with it, but losing 9" seems a bit too.... mad.gif to me.
post #686 of 1116
Quote:
Originally Posted by Shiftstealth View Post

Someone opened their AG, it uses CCFL. It uses this panel:
http://www.panelook.com/LM270WQ2-SLA1_LG%20Display_27.0_LCM_overview_5000.html
Yeah, I responded to that earlier. It doesn't share any of the physical characteristics of a CCFL panel though (the U2711 is much hotter, thicker, heavier and pulls more power). These "10-bit" aurias are also listed as being W-LED in their official documentation, for whatever that's worth.

@Grimster, is it be possible it simply uses a high frequency PWM? As I understand it that can also reduce the visibility of the strobe effect.
post #687 of 1116
Just to clarify for everyone, both CCFL and LED backlighting systems will flicker. The frequency of the flickering (aka PWM) as well as the individual user's sensitivity is what makes it noticeable or not.

I would also suggest that those who are noticing flickering issues attempt to adjust brightness in two methods and see if the flickering is noticeably different between each method, while still maintaining similar brightness levels:

1) Attempt to reduce brightness by leaving the RGB values at 100% and just adjusting the Backlight option.

2) Leave Backlight at 100% and adjust brightness by lowering the RGB values

You may need a colorimeter or lux meter to get a stable reading of the light output.
    
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post #688 of 1116
Quote:
Originally Posted by Booty Warrior View Post

Without a doubt it is LED backlit, and per Grimster's post, is apparently based off the LED version of the U2711.

I feel like I should clarify though that most LED and CCFL monitors use a form of PWM. It's just more noticeable on LED screens.

I can't conclusively state whether this monitor uses it or not. It doesn't seem to, but I may not be sensitive to it. I can't seem to find any in depth reviews of the LED-U2711.

The U2713HM and the Shimian have both been tested by Prad.de though and confirmed as NOT using PWM dimming, so you might want to consider those.
No, the Auria with Matte panel uses 8x CCFL not LEDs. This is why it has a max power of 144watts vs 36 watts on the glossy version which uses LEDs.
post #689 of 1116
Quote:
Originally Posted by Booty Warrior View Post

Yeah, I responded to that earlier. It doesn't share any of the physical characteristics of a CCFL panel though (the U2711 is much hotter, thicker, heavier and pulls more power). These "10-bit" aurias are also listed as being W-LED in their official documentation, for whatever that's worth.

@Grimster, is it be possible it simply uses a high frequency PWM? As I understand it that can also reduce the visibility of the strobe effect.
We already opened it, It uses a LM270WQ2-SLA1 panel which has 8x CCFL tubes. The glossy version uses LEDs
post #690 of 1116
Im returning this monitor.

Its obvious the subpar black levels are due to the Gamma being too high and there is no way to lower it on the monitor unfortunately. Plus I can still feel the PWM dimming eye strain after 30 mins. Oh well.
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