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I'm using a OnePlusOne and while using my sunglasses I can see the phone screen in portrait mode, however if I rotate the screen to landscape I can't see anything at all.

My sunglasses are polarized.

What is the reason for this?

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closed as off-topic by Algo, Patrick, grfrazee, user16 Aug 14 '15 at 21:40

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "This question does not appear to be about engineering, within the scope defined in the help center." – Algo, Community
If this question can be reworded to fit the rules in the help center, please edit the question.

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The screen of your phone uses a polarizing screens as well. When you hold you phone in portrait mode, the screens are oriented in the same direction so you can see the image. When you rotate it 90deg, the screens are not aligned and light cannot pass.

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