I wonder if something's the matter with your glasses.  In my experience, 
radios, gas stations pumps, cel phones, &c. are set up to be aligned 
properly for viewing through polarized sunglasses.

I had a pair of sun glasses made where they got the polarization 90 
degrees off.  Other than that they accentuated sun glare instead of 
attenuating it, the other clue was that gas station pumps, radio 
displays, and so on, were not visible without turning my head sideways. 
  I had the maker replace the lenses with ones that were properly 
polarized, and all was well.

73, Wayne Conrad

On 05/09/12 10:05, Bill Frantz wrote:
 > ... Both radio displays black out when I wear
 > polaroid sunglasses. (I have also noticed that the displays on
 > fuel station pumps black out.) ...
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