I believe it is shielding EMF/EMI from the LCD, since everything is mounted right behind the LCDin extremely close proximity, electromagnetic interference can distort the picture, at least that’s the theory. On a Mac or traditional laptop, the LCD is well away from the current carrying portions of the laptop

There are little round gaskets around at least 3 of the sensors/cameras on the sensor array area, and there are 3 antennae glued between the screen and the case on either side of the camera. THIS IS PRETTY IMPORTANT INFORMATION TO LEAVE OUT OF what is essentially a ‘teardown’ instruction posing as ‘replacement’ instructions. I really expected more form this web site, and anyone reading this should peruse youtube and watch MULTIPLE videos because a great deal of those don’t show these things either. The iOpener is for $@$*,you need a heat gun set to just below 200 F and once you get a pick in, heat in front of it, detach it while it’s easy, heat again, etc, and the top edge is much thicker and contains all the sensors. this has a lot of glue almost the whole thickness of the bezel. I haven’t found a way to separate without snagging one of the antennae but on the next try I will use more heat and go even slower. I would love to post a photo showing the exact position but see no way to…

No mention of the antenae???? assembly at the top of the screen, that you can cut right through with a pick (near the camera and N-trig assemblies),

This is a really lame procedure that ends up giving false confidence to people you should just remove it if you can’t put all the important details on here

This should be entitled ‘Display Removal’ not ‘Display Replacement’. There is literally nothing here addressing the replacement part.

I think there should be a part for putting it back together, it’s not always as simple as ‘just do it in reverse’ for instance, what is the best adhesive to use and how much should you use? Those parts are not listed either. Maybe a new display bought from Ifixit has adhesive already applied but what if you are using a used display?