Remember this, /g/?
I fukkin love old useless shit tech
I'll post some in a few
for now, have an edgy meme
OP, that's a privacy shield, not useless. It basically reduces the viewing angle so people can't snoop.
They have their applications such as with medical or financial data being displayed.
i had one of these with a grounding wire. if you disconnected the wire, it would charge up in about a minute and deliver a decent shock if you touched the pin.
so whatever was charging the protector was being stopped..