So, there's this really cool kind of trick effect that you can do with an LCD
or LED monitor where you remove the polarizing filter and then mount a
polarizing filter into a pair of glasses. Very easy to do with some 3D
glasses. That results in a monitor that looks like it just emits white and
nothing else. But if you're wearing the right glasses, you can actually see
what's on screen. Let's check it out.
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this isn't an original Linus Tech Tips idea. This was posted by two different
people about 2 years ago. On YouTube, it was posted by Brussup and on
Instructables, it was posted by Deovi. And there's also two different methods
of doing this. They both start with taking off the bezel of the monitor and
then using a knife to cut a perimeter around the screen. It's very sketchy,
but oh well. And then by chiseling off
the polarizing filter, getting rid of the glue somehow with a solvent of some
sort and then mounting a polarizing filter in a pair of glasses. Sounds
pretty straightforward so far. The differentiating part is whether or not
you buy some polarizing filters or reuse the polarizing filter off of your
screen. Uh, buying them sounds like more of a sure shot. So, I made sure that I
had some before we started this, but we're going to see which one works best
and we're going to go through the whole process on camera. Okay, so first things
first, I need to clear this area. I need
to get my iixit kit ready and my screwdriver because I have to tear the
bezel off of this guy. I'm going to remove the stand. Um, one interesting
tidbit. Uh, I've already kind of done
this. I used a different monitor and it super didn't work. And you might be
wondering why I would release this video if it like super failed once already.
The problem there was there was a pre-existing crack on the monitor. So,
when I'm trying to pull off the polarizing filter, there's glue under
there. The pre-existing crack spreads and I just ripped the whole thing in
half. So, hopefully that doesn't happen again. And if not, we'll probably be
good. Removing bezels on monitors kind of super sucks. I'm going to do
something that's not super visually appealing and use just a flathead to pry
it off. Realistically, you're supposed to use a spudger. Um, but I just bent
the whole head off of one of mine because it wasn't really working properly. The problem with this guy, and
the reason why it's going to be pretty ugly, is it's metal and it doesn't give
at all. It might be nice if you have something plastic so it can give a little bit. I might end up messing up
some of the plastic here. So, what I'm going to do is start on the bottom. That
way, it's hopefully going to be the least viewed part of the
monitor. Now, see, look at this.
My proper prying tools don't really seem to be surviving. I just torqued the
whole end off of that one. So, rip. I
guess I'll go back to using my probably not going to be as pretty, but
screwdriver
trick. I ended up starting on the top because the bottom was giving me too
much trouble. As you can see, the starting point is pretty rough actually.
That's why I suggest maybe taking a little bit more time with it and using a
more proper tool. And then from there on, it's not too bad. You'll just see
little bumps here and there from the flathead, but it's not really the end of
the world. I know people will care and it will bug me, so
whatever. Okay, bezel is hopefully off. What is
going on down here? Oh dear. There's
some cables going to the buttons. I was
kind of hoping that these were just going to be button plates and the actual
button was going to be under them and not on the bezel. That is not true. As
you can see, the whole mechanism is in here and then it goes through a wire
into the thing. So, I'm not actually going to be able to get this out,
which super sucks. Oh no. Yeah, I'm not going to be able to
get it out. So, I'm going to have to get a support for it and then I'll be able to work around it. One little tidbit
that I recommend, uh, I learned from the last monitor that your initial perimeter
cut is actually pretty important. Um, I would recommend a sturdier, hopefully
bit sharper knife for the actual perimeter because you want a nice clean
cut. If that part makes it in the video, everyone's going to scream at me for
cutting towards myself. So right now I'm just trying to connect
the corners. So I cut four perimeter
lines, but they don't necessarily completely match up. So I'm just trying
to bridge them. Okay, so our perimeter lines have
been cut. Um, we're mostly done with the
nice big knife. Now what we need to do is try to get under those lines that we
cut and start actually pulling up the polarizing filter. Now remember, there
is glue under this entire thing. So,
while you can pull it up sometimes, you do really need to chisel under there and
separate the polarizing filter from the actual panel. So, the reason why you want a
nice clean cut with probably a nicer knife around the perimeter is once you
kind of get started with your chisel, as you go along the side, where you cut
should just kind of come Oh, that part
shouldn't go in the video. That's bad. Oh god. I was just
commenting about how I shouldn't be cutting towards myself. So, the reason
why you want a nice clean cut with your probably sharper knife around the
perimeter is so that when you're moving along with the chisel, uh, the perimeter
actually comes up. So, as you can see here, I'm pushing in and then sliding
out, angling a little bit, pushing in again, and just moving along. And the
perimeter should just kind of come up with my knife, which is actually quite
helpful so that it keeps a clean edge. When you enter the first time with your
chisel, it's probably going to be a little bit messy, but once you start
going, everything does get easier. Another helpful trick is to not
necessarily pull the polarizing filter all the time and kind of kind of rip it
off, but hold it up so you can get your chisel under there more easily. Once you
have some room like I do now, it's much
easier to do this at the beginning. Obviously, that's not really going to
work. So, I've I've got this whole side
off and I've got a bit of the top and a bit of the bottom off. It starts to go a
lot faster. Now, I will note this might not be the experience with every
monitor. I do believe the amount of glue used on each monitor is definitely
different, but with this one, it is going quite a bit faster. Another thing that's helping me is the clean, sharp
cut that I got all the way around the monitor. Um, which will feel super
sketchy while you're doing it, but is actually totally fine. So, don't worry
about it. So, up here, it started to break a few times. Um, yeah, I don't
really know what's going on with that. Probably something's wrong with the cut.
I do notice there's some strand of something here. So, what I might do is
grab the knife that I originally did the perimeter with and kind of rerun this
area a little bit just to make sure that it's actually
okay. So, this top bit for me is pretty
rough. I keep getting cracks constantly going down from the top, but my bottom
line is super clean. So, hopefully I'll have a lot of usable filter in kind of
this area and I'll just have to ignore the top left, I guess.
Almost. Let go. Come on. There we
go. Okay. So, there's our polarizing
filter. We've got uh kind of an ugly entry here where I started and then some
big cuts up here which are pretty unfortunate. But I have a lot of usable
space to cut out lenses to replace on here. Or there's the other method which
I'm also going to do which is where we have purchased polarizing filters for
like I don't know not that much off of Amazon. And we'll try each method see
which one's better. So just a note is that this stuff on the screen isn't
actually slashes or cuts into the screen. This is all just glue residue.
So, I need to clean it up somehow. Hopefully, I can use isopropyl alcohol
cuz that's all I really have on hand.
Um, but I know people have been using gooby gone. So, we'll see what has
happened there.
Hey, do we have gooby gone? Do we have goooo gone? I have been using a shirt
because the paper towel was leaving a whole bunch of crap behind and I
wouldn't recommend that if you actually ever want to wear the shirt again. So,
just a note. Wow. Okay. So, yeah, using a
proper thing that is designed for removing glue probably a good idea. This
is so much easier.
So, one thing I would recommend is making sure that you let your whatever
goo removal stuff you use to sit for
probably a while and then kind of pat it
off and take it off nicely and then do it again and let it sit and do it again
and let it sit and just keep on doing that to the point where you can fairly
easily just wipe the glue off. Um, I, as
you guys saw, used the chisel blade, which was recommended on a few guides
online saying that the blade definitely wouldn't scratch the monitor, but there
are lines going along the monitor that you can see from just the edge of the
knife. So, a little bit disappointed in that. And yeah, try to make sure that
your solvent solution does more of the work than you do, and I think you'll be
fine. We're going to call it quits there in terms of trying to touch up the
panel. I'm going to try to get this monitor back together. I knew those
wires were going to be a problem. All right. One thing again to take note of
is you can do this with pretty much whatever panel you want, but I recommend
going my route and buying some kind of cheap panel off some dude who's moving
on Craigslist um because it's not a
perfect method. But we'll talk about that more later on. Now, what we need to
do is plug this guy in. Make sure it's all white, which I'm sure it will be.
And then check out the alignment for these filters so I can cut them into
some glasses. Can you even see that, Brandon? See what do you want to plug
the Wancho computer in?
I actually think it might be a better approach at this point. I'm just doing
Okay, so it works. Um, a kind of frustrating thing happened while we were
going though. Nothing went wrong with the actual removal of the polarizing
filter or anything, but it seems like the inverter on the monitor
has died at some point in time. So, if I
shove this guy on here and change the
source, you'll see it works, but then
goes away almost immediately. So, we're
going to go through the rest of it. I'm going to make some glasses. I'm going to test some things, but pretty
disappointed that the monitor died. So, I'm going to have to kind of rotate
trying to turn this thing on and then try to figure out what orientation these
things need to go before I cut
them. Oh, that's really close.
Yeah. Yeah, that's good. So, now I know
from just not letting go of it that this part needs to be going up. Use my lens
that I popped out of my glasses earlier. um squish that kind of against the
polarizing filter and I'm going to use a thin Sharpie to outline it. And then I'm
just going to cut on the inside of the
outline and then it should work. Okay,
so I've cut my filter. Now it's time to actually fit it into my pair of
glasses. I think that works so far. Feel like a hipster not having one of my
lenses there. But now I just need to fit one more of them and I think we'll be
good. All right, so my glasses are set
up and ready to go. Let's see if they actually
work. There we
go. All right, so the glasses do work.
Um, sorry that the inverter is borked so you can't really see it all that well.
But something I'm going to do is actually pass these to Brandon and then
hold those over the lens. We're going to do this live and
then I'm going to change the source and hopefully you guys will be able to see
it better with that over the lens. Give me a moment. I'm going to have no idea
when this works because I'm not actually going to be able to see it. Is that good? Okay, there we go.
So, the project worked. The monitor
didn't, but the inverter dying had nothing to do with what we did for the
project. So, poor old like 10year-old
Flatron is is going to have to be retired and recycled after this. But, oh
well. I would still recommend getting an
old monitor. I just wouldn't necessarily recommend getting a very old monitor or
one that you don't trust. I bought this one off Craigslist for 30 bucks or
something. And I only tested it for about 2 minutes 2 weeks ago and now fast
forward two weeks, the inverter's dead. Things are
bad. Another little bit that I have to say is while being able to remove the
polarizing filter that was on the monitor and using it again is cool, you
also need to remove the anti-glare filter off of here. And while it's
possible by soaking it in hot water and then trying to peel it off like a
sticker and stuff, it's really annoying.
And the polarizing filters from Amazon are super cheap and work really well.
Uh, one thing to note on here is that they also have a film on it, a
sticker-like substance, which is just supposed to protect them, but it's super
easy to take off. So, not nearly the same problem that we have with the
anti-glare filter. Another thing is the goof off or gooby gone or whatever the
heck paint thinner you end up using to remove your glue. Let it sit on there
for a while. Dry it off. Let it sit again. Dry it off. Let it sit again. Do
that a few times so that you don't have to scrape the glue off. It should come
off much more evenly and you'll have a better time. I probably should have done
that. But honestly, it wasn't that hard. It was sketchy. It feels very weird
bringing a knife to a monitor screen. It doesn't feel natural. Um, but yeah, if
you guys do it, please post it on the forum. I'd like to see your projects.
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know. Check it out. Thanks for watching, guys. If you
dislike the video cuz you're like, "Wow, the project didn't really fully work cuz
the inverter died." Be sure to press the dislike button. If you like the project
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