LCD Polarization

Laptops with LCD screens are, for some reason, polarized vertically (only vertical light waves are emitted). Unfortunately, polarized sun glasses are polarized to block light in this direction because it cuts down on most glare from the sun (any light that reflects off a horizontal surface, I believe). Essentially, LCD screens compete in the same dimension as reflected sunlight.

If laptop LCD screens emitted light polarized in the other direction, a user could wear polarized sun-glasses and see a relative brightening of the screen compared to the ambient reflected sunlight (aka "glare")