Problem:
The screen appears dark when the user looks at it through polarised sunglasses.
Cause:
Your phone screen uses a polariser to make it easier for you to see clearly, just like polarised sunglasses.Polarised sunglasses only allow light to pass through in a single direction, and your phone screen only emits light in a single direction.Your sunglasses and phone screen end up counteracting each other by working in opposite directions. As a result, you end up seeing a dark or black screen.
Solution:
Rotate your phone.Take off your sunglasses when using your phone or install a screen protector (about 0.2 mm thick) to cancel the polarising effect to a certain degree.
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