1 You Might Not Be Able to Use Polarized Glasses

If you own an iPhone and a pair of polarized sunglasses, you can probably attest to the fact that the latter can affect how you see the former. Because of the nature of LCD-based displays, an iPhone’s display might look a bit wonky at certain viewing angles when viewed through a polarized lens.

But this problem can get much worse if you get your screen replaced by a third party — possibly due to substandard components or improperly performed repairs.

According to some Apple users, the screen can be impacted by severe glare or even go completely blank at specific angles.