The newly purchased PC screen was broken because the user accidentally peeled off the 'strange' sticker, and netizens simultaneously wondered: What is this thing, and what role does it play? - ITZone
What happens if you remove the polarization filter from a computer monitor? - Quora
For Your Eyes Only: Polarizing Privacy Monitor Mod | WIRED
How to Make Funky Colorful Images of Ordinary Plastic Objects Using a Polarizing Filter
Removing the polarizer from an LCD screen - YouTube
CANON Drop-in Filter Mount Adapter EF-EOS R with Drop-in Variable ND filter A | FORTRESS