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How To: Remove Anti-Glare Coating from a Dell U2312HM Monitor (and others)

post #1 of 135
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How To Remove the Anti-Glare Coating from a Dell U2312HM Monitor

WARNING: THIS WILL VOID YOUR WARRANTY.

WITH THE AG FILM REMOVED, LET THE PANEL COOL OFF COMPLETELY BEFORE CLEANING.
Someone in another thread ruined their U2711(AG removed) by using cold distilled water when the monitor was hot and it caused micro fractures to appear in the panel, distorting the display. I have cleaned my display many times using the same method but it was always on a cool panel, a habit I picked up to avoid streaking/smudges due to rapid evaporation.
DO NOT CLEAN A HOT DISPLAY WITH THE AG REMOVED.


UPDATE (05-DEC-2013): Just want to check in and update that my screen is still 100% flaw free and working fine. It has gone from Jersey to Tucson to Phoenix and sits on an articulating mount so it gets moved around quite a bit. I do not clean the screen with anything other than compressed air and a very soft microfiber cloth with warm water and another dry one after, minimal pressure. I have cleaned it maybe 5-6 times total since the original mod.

It's actually a lot easier than I thought it would be. Having never taken a monitor apart before, I did a lot of research first and made sure I had the right tools instead of trying to improvise. Now that I know exactly how it's all assembled I could probably do it with nothing more than careful use of a a couple screwdrivers. Looking back, I'm glad I had some soft plastic pry bars to learn with.

2yyb3l.jpg h0YnDl.jpg

First, remove the 4 screws on the back of the monitor.

SwvZVl.jpg x8YIWl.jpg

Next, pry up on the front plastic bezel from the inside (the side where the bezel touches the actual lcd) until one of the clips releases. Carefully go around and pry the rest of the clips out, it gets easier with each clip.

Z19VQl.jpg svwHtl.jpg YMHHFl.jpg

I chose to also unscrew the little menu control board from the bezel as it's only connected by a seemingly fragile ribbon cable.
28IoJl.jpg aOknGl.jpg

This allows you to set the front bezel completely aside.

Pull the screen out of the rear housing by gently lifting it out. In retrospect, it would have been easier to lay the panel down on it's face and just lift the housing off; Alas, hindsight is 20/20 and this was my first time frown.gif No harm done.

TmQQ3l.jpg 883H4l.jpg

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All that's left is to remove the metal retainer bezel from around the panel which comes off easily by lightly prying the little pry-points up over their detents all around the housing.

U422Ml.jpg eh1RBl.jpg

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The bottom will have a strip of foil tape that is lightly perforated;

WSLlul.jpg

Keep this intact and just carefully flip the metal bezel up and lay it down above your panel on your workspace.

wRVy3l.jpg 3tbbMl.jpg OvCw3l.jpg

To remove the anti-glare coating, make sure the screen is facing up.

pXNPzl.jpg

Place wet (not damp, not drenched, just wet) paper towels over the entire screen surface.

bYRyUl.jpg Nl4Ksl.jpg

I used blue scott paper towels (available at all auto stores) because they hold quite a bit of liquid and are rather durable when wet. You want to cover the entire screen surface with a couple layers of these wet paper towels. Leave them on for 4-5 hours, making sure they are always wet throughout. If they begin to dry, just take a single soaked paper towel and lay it on top of the existing layers, allowing the water to diffuse down.

After 4-5 hours, pull up a corner of the wet paper towels and using your nail or a blade, very carefully peel up on the AG coating. Make sure you don't peel up the polarizer! You'll be able to tell the difference if you look at it for a moment as there are two different layers; The dark bottom-most layer is the polarizer which you want to leave intact. The AG coating should come up very easily at this point, like a very very weak sticker. If you notice any residue being left behind or it's overly difficult to pull up, you need to let it sit under the wet paper towels a little longer. After 5 hours mine came up completely effortlessly.

fYs7gl.jpg l0EA6l.jpg

BkyvMl.jpg npTmwl.jpg

uW5z8l.jpg T3OJbl.jpg

aCjSOl.jpg

Reassembly is self explanatory with the exception of the front plastic bezel. On the USB port side of the monitor there are two metal prongs that stick up from the USB controller housing which must go inside two corresponding female clips on the plastic bezel.

XCw7Sl.jpg 7yRLdl.jpg

oZfM5l.jpg 2enxWl.jpg

4Mu20l.jpg G5Msvl.jpg

UwPvtl.jpg CeiiHl.jpg

0P09pl.jpg 9DaJDl.jpg

SwvZVl.jpg

fBinF.jpg

That's it! You now have a beautiful IPS panel with crystal clean whites, deep blacks and no more sparkle! smile.gif

I know a few other people who have done this modification over a year ago with no ill effects. One thing they all did in common was making sure they left the paper towels on long enough to adequately release the adhesive's bond to the polarizer. Those that reported issues usually admit that they didn't let it soak long enough and had issues during the removal process which resulted in a weakening of the polarizer or residual adhesive which led to damage when they attempted to remove it.

This is a little video showing how the coating should come off:


Keep in mind that your screen is more fragile now without the coating in place and cleaning it will require additional care. Always let your monitor cool before cleaning the screen and use only distilled water with a very gentle microfiber cloth. Always use light up/down and left/right strokes, never circular.

With that said, for someone who is overly sensitive to the AG coating, this mod is an absolute must for me to enjoy this panel. My main display is currently a 120hz Asus VG236HE with a glossy screen and going from that to a window on the U2312HM was simply painful; It made the "dirty" effect from the coating obvious, especially with white/light colors.
Edited by cre3d - 12/5/13 at 6:58pm
post #2 of 135
Thanks for the post! I might have to try this. biggrin.gif
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post #3 of 135
VERY GOOD !
finally a serious user.

LG look this and learn !
post #4 of 135
Same procedure applies to the aw2310. I was bored and ended up doin it!

+Rep OP
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post #5 of 135
Damn that turned out magnificent! I am so tempted to try that on my u2410's as I'm not crazy about the AG coating but I would be terrified that I'd mess it up.
post #6 of 135
I really want to try this when mine gets here, but it truly scares me with the warranty voiding and all, let wait and see how much the AG coating bothers me first biggrin.gif +rep sir
 
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post #7 of 135
if i had enough balls to do that..I would probably try something similar on my HP zr24w...over the years i've decided im a glossy screen man..i like the colors/iq better...tho AG coating is a must for some...but not for me. no issues with reflections here.

Great post! good work. +1 rep for the effort to do this and post a guide.
Edited by malikq86 - 2/21/12 at 7:16pm
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post #8 of 135
You sir have serious cojones.. Kudos!


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post #9 of 135
Quote:
Originally Posted by Mullinz View Post

Damn that turned out magnificent! I am so tempted to try that on my u2410's as I'm not crazy about the AG coating but I would be terrified that I'd mess it up.
That makes two of us.

I'm glad to see more people trying this, and this one was well written and in depth, and it seems the emphasis is on being patient and taking your time.
post #10 of 135
Hey, guys. smile.gif I just came across this thread & I was very impressed that you can remove these dam anticlear coating. Great job, OP. thumb.gif

I had before an Dell 2405FPW (PVA) & I loved the black level. But the anticlear was horrible & the display wasn't really good for gaming. So I bought an HP w2408h & what can I say, I love the glossy finish. biggrin.gif But yea, it's a TN pannel & there are the cons.

Now I am really playing with the idea to get an Dell U2312HM, because it's an outstanding display, even for gaming. But the antiglare coating is horrible. mad.gif This thread now gave me a new hope, I did some more research on the net & removing the AC it isn't really an uncommon practive. And if done correctly & carefully with an outstanding result.

Here are some examples:
- http://lumenlab.com/forums/index.php?showtopic=8283&st=0
- http://www.overclock.net/t/1178277/removing-the-anti-glare-coating-on-my-u2711
- http://hardforum.com/showthread.php?t=1564504

And look at the result:

453

More pics: http://www.flickr.com/photos/42236618@N07/4672028261/in/photostream/


That's really outstanding. biggrin.gif But without an "protection layer" on the display it's imo just to risky. So I googled a bit more what could be a very good replacement layer. My finding are:

- Vikuiti 3M Display Protection: http://vikuiti.schutzfolien24.de/Displayschutzfolien/Standardgroessen/58-4-cm-%2823-0-Zoll%29-%5B510-x-287-mm%5D/Vikuiti-DQC160/ebene3

Basically a perfect replacement. But hard to handle, you need a completely dust free location to get a very good result. And once it's don, I think you can't get it off without damaging the polarizer layer.

- Precision Acrylic Glass: http://www.modulor.de/shop/oxid.php/sid/25faf9e3b184af439c218a056e91f1bc/cl/details/cnid/AAE/anid/AAEU/tpl/-/lang/1/listtype/list

A bit more expensive & because of the thickness of 1,5mm harder to build in, but "Precision acrylic glass is primarily processed by industry into timepiece crystals, filters for single or multiple coloured LCD/LED displays as well as radio and audio cover panels". I guess you have to modify the display frame with an Dremel or something like that to make it fit. But it's much easier to handle (no glue). Use a thick tape around the edges to get it dust free, put it in, close the frame/case, thing done. thumb.gif

What do you guys think? confused.gif


PS: to translate the 2 links, use google translate: http://translate.google.com/
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