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Finally you can do something with that old LCD monitor you have in the garage. You can turn it into a privacy monitor! It looks all white to everybody...
Find an old monitor that you are willing to sacrifice. Take off the plastic frame by unscrewing all screws from the back.
Most LCD monitors have two films on the glass - a polarized one to filter out the light you are not supposed to see, and a frosted anti-glare film. Th...
After you remove the film, the glue will likely remain stuck to the glass, so here comes the messy part. With some solvent, soften the glue and wipe i...
After cleaning the adhesive, assemble everything back the way it was. Before even making the glasses, you can test the monitor with the polarized film...
For the glasses, I used single use 3D glasses from the movie theater, but you can use whatever you want. Pop out the lenses or take the glasses apart ...
If you are going to use a cnc blade or laser cutter, scan and trace the parts. You can find a local vinyl or laser cutting service, or you could send ...
Finally assemble the glasses and you are ready for some fun! People might think you are crazy, staring at a blank white screen wearing sunglasses! But...
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for mine the best angle is to slightly tilt my head to the left but still it's cool
Another alternative is to use the "slide on" / "coverall" type sunglasses - the ones old people use over their glasses. They're basically oversized sunglasses made to fit over normal glasses, which is exactly what we want here. Pop out the lenses, replace with polarizers, and you should be set.
If you get prescription polarized sunglasses, they should work halfway, since polarized sunglasses are polarized horizontally, and almost all monitors are polarized 45 degrees from horizontal. The downside of this is that what you'll see is half the light from the image displayed, and half from the "blank screen" effect that everyone else sees, giving you a large reduction in contrast (but you should still be able to see it).
Just wondering if this can be adapted to work with prescription glasses?
so i tried this and everything works as per specification. what i did notice, however (and what the article neglected to mention), was that the polarization film makes the contents of the screen fuzzy -- especially the further you are away from the monitor. If you are more than 2 feet away from it, then just forget it. as cool as this project is, due to this limitation, it's really more unpractical than anything else.
the filter was made to function while pressed directly onto the glass. even moving the filer an inch away from the glass and you can already see a large degradation in picture quality.
http://www.instructables.com/image/FS9CRH1GV9CELUY/Monitor-done.jpg
notice how the upper left part of the film is clear, but the bottom right is hazy.
That's because I removed only half of the anti-glare film.
If you remove everything from the polarizing film it would be crystal clear. The movie above was recorded with the glasses 5 feet away from the monitor. If you can't clean your polarized film just buy some online. If you happen to have polarized sunglasses, you can try it by holding them far from the monitor at 45 degree angle.
I guess one would only need 3D glasses with each lens with the same polarization, right?
Now the perfect thing would be to find transparent polarized filters...!
http://en.wikipedia.org/wiki/Liquid_crystal_display