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XPS 27 7760 AIO, screen leaks sticky compound
On the pic below a distinctive outline on top and both sides of the screen can be seen. On the bottom of PC very sticky liquid is coming out. I bought this best available and most expansive ($2.5K) All-In-One system in Nov. 2017 thinking it would last long time. When it first arrived, right out of the box, I noticed a line in the top left corner of the screen that looked like a crack. I assumed that PC was damaged during shipment. Contacted Dell and they replaced the system. The warranty and extended warranty I paid for, until it was no longer available, expired in Oct. 2021. Shortly after, I noticed a line in the top left corner of the screen and at first thought it was again a crack. But when the line started moving, I thought it was moisture penetration. I blamed someone else for using a wet tissue. Over the period of almost six months this “moisture” line expended to the other corner and down on both sides of the screen. I searched online and read that this moisture may go away from the heat of the screen. I turned PC upside down trying to drain it. It didn’t help. Thinking that it was our fault I did not contact Dell. Three days ago, I accidently touched the bottom of PC and found sticky substance that I couldn’t get off my hand. Searched online again and found that other owners reported similar sticky leak problems with their screens. Putting two and two together, I am convinced now that 2017 out-of-the-box problem was the leak problem: just started to develop. A very expansive lesson. Over the years I only had purchased Dell systems, but with this experience, if there is no solution, I will be looking elsewhere. I will continue posting new pics to document this bonding compound leak progress.
The picture angle is to avoid reflection of myself on the screen.
patrickleon
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September 29th, 2024 12:21
My support has expired so it won't let me start a ticket.
<The XPS 27 7760 LCD panel NW1G2 released 8 years ago in 2016 is not available for sale from Dell Spare Parts. DELL-Admin>
(edited)
aventura1
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May 22nd, 2022 10:00
Drops of the leaking bonding compound at the bottom of PC. Stickiness remains no matter what cleaner I use.
The drops.
ejn63
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May 22nd, 2022 10:00
Since it's evident this system is physically damaged -- the cracked plastic and scuffed display are evident in the photo, the question is whether the leakage occurred after the screen was damaged. One way or another, the display needs to be replaced.
Whether you want to undertake that is up to you but replacement displays are available.
https://www.ebay.com/itm/264163798224?chn=ps&norover=1&mkevt=1&mkrid=711-117182-37290-0&mkcid=2&itemid=264163798224&targetid=1263094005506&device=c&mktype=&googleloc=9003434&poi=&campaignid=14859008593&mkgroupid=130497710760&rlsatarget=pla-1263094005506&abcId=9300678&merchantid=8218084&gclid=Cj0KCQjwvqeUBhCBARIsAOdt45ZEvZs-gNqb7hUyPk6sMgOo_Z6veSuSkgrYrLHy7jA_x5rDUr7EWPIaAuV5EALw_wcB
aventura1
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May 22nd, 2022 11:00
Thanks for your comment, ejn63. Plastic is not cracked, and screen is not scuffed. It's the sticky compound, that is impossible to remove, clouds the picture. The display did not fail because of abuse. Dell offered a replacement non-touch screen for $98 and said it will fit and will work. They said there is no touch available. I placed an order but have my doubts. I don't use touch and it's disabled in BIOS. $500 for used touch screen on eBay? Hmm...
(edited)
aventura1
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May 25th, 2022 12:00
After more research:
In the touch screen displays there is an Optical Bonding Compound between the screen and the glass that is leaking out. The line towards the top and the sides is the liquid level as it slowly oozes out of the display panel. The seal at the edge of the screen that was meant to keep the compound in, has failed.
Optical bonding compound fills the air gap between the individual components and is used to reduce glare and surface reflections. The chemical will slowly leak out from between the glass and LCD over time, with bubbles forming and making it appear that it is leaking into the screen while it is actually leaking from it. If the leak was from the LCD itself (liquid crystals), I would expect to see a significant "damaged pixel" look to the display. I don’t see any pixel damage on my display, just lost brightness in affected area.
The XPS 27 Service Manual has a D-I-Y procedure to replace Display Assembly in touch screen systems ($1100). In non-touch systems - Display Panel can be replaced ($98). Had to return the panel I ordered because, despite what Dell said, it cannot be used in touch systems.
aventura1
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February 1st, 2023 20:00
The screen went black last August. Will have to take it apart and remove HD's before trashing it. Was putting it off because it will be messy.
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ChawRash
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April 25th, 2023 13:00
What did you do to your Aio?
aventura1
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April 26th, 2023 02:00
In trash bag. Need to remove HDs.
aventura1
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December 8th, 2023 18:47
From all-in-one to all-in-two (with external display) after trashing leaking display assembly. It works.
DnA666
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January 29th, 2024 18:30
Same problem here.
My first thought it was moisture, coming from outside. (never cleaned it wet though)
So the display will eventually completely fail?
And it cannot be replaced, not even with a non-touch panel?
I love the touch and use it a lot: it was one of the main reasons for my purchase...
But even without touch, I would've replaced it with a non-touch panel...
Too bad. My first experience with Dell is turning into a very bad one...
Nice wooden version you made ;-D
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DnA666
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January 29th, 2024 18:57
No leaks.
Yet...
Anyone know the partnumber?
Electronics_By_JB
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February 6th, 2024 03:31
@aventura1 Removing the HDDs is pretty simple and doesn't require messing with the screen at all. There is a USB cover plate that you remove, under which there are 2 screws. Then you simply push up on the backside and the rear assembly slides right off.
lamey
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August 7th, 2024 20:55
My machine just started leaking. Wondered what the goo was. So far screen unaffected. Really hard to get it off your hands. Some dropped on the desk area - lots of scrubbing to get it off. At least now I know what it is. Thanks
HeathMoir
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August 21st, 2024 16:04
<Violations as defined by Dell removed. Read the Forum Code of Conduct. Profanity is never allowed. DELL-Admin>
I have instigated a complaint to Dell uk. This is a manufacturing defect that in my opinion should be replaced by Dell F.o.C. They told me it wasnt a known issue just this morning! They then state they would help but there are no parts! I might take them to small claim in . All of your experiences will help my case that DELL is responsible for these defects. In the UK a product must last a reasonable amount of time, mine was 5 yrs old and screen issues for 18 months +. As is mentioned on this thread initially atarts as if a crack to the screen, and develops exactly the same as posted pics. I am not letting this go!
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skipbifferty
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August 28th, 2024 09:41
@HeathMoir please keep me informed. I have the same problem