The iPhone screen becomes opaque to Use Polarized Glasses

Maybe some of you will already have noticed, but not others. It turns out that if we look through polarized glasses and put the iPhone horizontally, the screen goes black for a dull, as if off. This happens when using certain sunglasses or goggles are polarized 3D movies.

Let's analyze this curious phenomenon that occurs only with the iPad. Apparently other manufacturers have solved this controversy dragging the critical angle to 45 °, which is usually a position in which no one uses the iPad . In fact, with the iPhone itself does not have this problem of polarization so annoying.

The expert Ray Soneira from DisplayMate explains that this happens because the light emitted from the iPhone screen is polarized in one axis. Our eyes are trained to not be affected by polarized light, but if we put a filter (sunglasses), we will reach only one component of light. When we turn the iPhone screen perpendicular to the filter sunglasses, there is the cancellation of the light reaching us.

This effect can be annoying, but appears in other tablets like the Motorola Xoom LCD panels that are internally polarized light. This unfortunate choice of polarization angle does not look to be an oversight, but rather a consequence of the design could not afford.

In the link at the bottom of the articles is a video showing this effect many may not know each other. Do you happened to anyone on the beach when you had sunglasses on?.

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