dell laptop screen issue

[cauzomb]

This is about the missing or odd colored vertical lines that show up in laptop screens after a while, the issue is mostly related to various models of dell laptop's

I recently took apart a D510 laptop screen to determine the cause of the vertical line issue...

What I found is that Dell exceeded the panel manufactures design specifications for encasing the display panel by placing objects or components/wiring in direct contact with the sections of flat pannel that were designed to be free of any contact..

In the case of this D510 laptop, it was a repetitive motion fatigue failure of the flexible circuits that interconnect the pixel driver's of the LCD's display, to the glass pannel.. This fatique/contact area had parts manufactured or installed by DELL, electronics sheilding tape and antenna interconnect wires.. Placed in direct contact with the Display panels flex interconnect circuit cover material that specifically states right on the material "DO NOT TOUCH"

The circuits that lay benieth the warning plastic tape cover are exreamly fragile, inspection of the circuit after removing the warning tape shows that sections of the circuit were broken, these broken circuits line up with the plastic case assembly and the bumps in the electronic sheilding, caused by antenna wires run beneith the sheilding tape.. The wires are for the DELL Latitude in-built Wi-fi antenna wires running along the back side of the plastic display covering, leading up to two little metal antennea along the top edge of the display case/laptop "lid"..

There was a clear pinch/rub mark in the metal sheilding tape where the antenna wires run beneith the tape, where the frame and flex circuit area of the display pannel came into contact with the sheilding tape..

This is a DELL manufacturing defect in their laptop chassis and internal component wire routing, that causes the non DELL display panel to fail in normal use..

The display panel in question was manufactured by Quanta, part number qd15xl04 The internal flex circuits that break are NOT repairable with common electronic repair tools.

You would need a high-end reflowing station, microscope, and replacment flex circuit.. These flex circuits have a small exposed wafer /transistor/IC exposed, sort of like a flip chip barton core and apparenly are designed to be flexed ONCE into position and that's it.

Non repairable, unless you buy a new panel, or new laptop lid. I think this should be fixed for free by DELL... My dad's laptop started doing that, someone put sticky foam tape inside to "hold the loose connection" so it was broken before he got it, they put it back together with the little bit of foam to add pressure to the broken circuit, then pawned it off on my dad.. Eventually it got worse, because there was added pressure on the "front" of the bezel, pushing the back of the display panel, where the flex circuit is, with more pressure, against the dell wi-fi wires and shielding....

[Blakhart]

It seems this is standard practice among some laptop makers. It may take a while but all of them seem to eventualy have lcd issues of this type. You know it's caused by fatigue when you can open the lid a bit to remake contact, but eventualy it fails open and there you are buying a new lcd.

[cauzomb]

It seems this is standard practice among some laptop makers. It may take a while but all of them seem to eventualy have lcd issues of this type. You know it's caused by fatigue when you can open the lid a bit to remake contact, but eventualy it fails open and there you are buying a new lcd.

I found out that dell was supposed to be replacing these due to the manufacture defect but calling in attempts to get the display panel replaced resulted in an hour and a half run around transfers to different departments and finally told to call back when they are open because they kept me on the phone till they were closed..