Polarized sunglasses and iPad in portrait mode

Discussion in 'iPad' started by backbraker25, May 17, 2010.

  1. backbraker25 macrumors member

    Dec 9, 2007
    I'm not sure if anyone has noticed this but it virtually impossible to see the iPad screen in portrait mode with polarized sunglasses on. However it works on landscape.
  2. bocomo macrumors 6502

    Jun 29, 2007
    New York
  3. masa. macrumors member

    May 13, 2010
    Sydney, Australia
    A LCD panel typically has a vertical polarizer film at the front of the screen. That's why when you have sunglasses, which have orthogonal polarization strips (say holizontal), you do not see anything. If you get sunglasses with circular polarization, you probably able to see the LCD screen.
  4. eoblaed macrumors 68020


    Apr 21, 2010
    Yup, my Maui Jim's render the screen invisible in portrait mode. ;)

    Easy enough to work-around, though. Either switch to landscape, or remove the sunglasses.
  5. jtara macrumors 65816

    Mar 23, 2009
    Actually, I recall that I had the opposite problem - could only see my iPad in portrait mode. That makes more sense, because portrait mode seems to be Apple's "favored" orientation.

    The astute reader will not my use of the words "recall", and "had"...

    Surprisingly, the Power Control anti-glare film seems to have solved the problem!

    I just tested with a pair of polarized Carrreras as well as a pair of Drivewear lenses. Same result - I can see the screen in both portrait and landscape mode, with some fringing, but not very objectionable.
  6. backbraker25 thread starter macrumors member

    Dec 9, 2007
    I just realized that I can't see my iMac screen either. You guys are right.
  7. jtara macrumors 65816

    Mar 23, 2009
    Samsung SyncMaster 213T (old 2000-era 22" IPS), no screen protector - landscape OK, portrait 100% cutout.

    13" Aluminum Macbook late 2008, no screen protector - landscape OK, portrait OK

    iPhone 3G, Zagg - landscape OK, portrait OK (pretty sure this is OK without the Zagg as well)

    I think the problem is primarily with IPS-technology displays (such as my Syncmasters and iPad).
  8. masa. macrumors member

    May 13, 2010
    Sydney, Australia
    Those films often do not preserve the polarization.
  9. JodyK macrumors 6502a


    Jan 29, 2010
    Northern Atlanta suburbs
    Maui Jim's rock! I have the sport carbonite ones! I noticed this too and honestly thought it might have been my Zagg invisible sholield causing the problem. Good to know I'm not crazy!
  10. smilechild macrumors newbie

    Apr 9, 2010
  11. mavis macrumors 68040


    Jul 30, 2007
    Tokyo, Japan
    Wirelessly posted (iPhone 3GS (OS4.0b3): Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_0 like Mac OS X; en-us) AppleWebKit/532.9 (KHTML, like Gecko) Version/4.0.4 Mobile/8A260b Safari/531.21.10)

    Yup. I can't see my iMac screen when I have my sunnies on - and all of my shades are polarized, so it kind of sucks. Not that I often wear my sunglasses indoors, but when you throw then on and check something on the computer on your way out the door, it's kinda lame. The best ones for viewing the iMac are my Ray Ban Aviators - it's hard to explain, but the polarization angle of the two lenses is very slightly different, so a slight head tilt does the trick. Both of Oakleys, OTOH, are perfectly aligned, making the polarization blackout 100% ... Oh well. At least they look good. :)
  12. Liam8 macrumors 6502


    Mar 15, 2009
  13. Mike Oxsaw macrumors newbie

    May 14, 2010
  14. Consultant macrumors G5


    Jun 27, 2007
    Interesting science...

    Maybe it's your eyes! Better get it checked out!

  15. lokerd macrumors 6502a


    May 2, 2010
  16. MobiusStrip macrumors regular

    Dec 11, 2009
    Tell that to pilots, whose kneeboards hold the iPad on their thigh in portrait orientation. I would never fly in the daytime without good sunglasses. Or tell others in mobile applications where the mounting system holds the iPad in portrait orientation (which is more likely to be the ideal orientation in a vehicle and for mobile apps).

    The current polarization is backward. The screen should be visible in portrait orientation but not landscape. People sitting watching a movie are the least likely to be wearing sunglasses.

  17. darngooddesign macrumors G3

    Jul 4, 2007
    Atlanta, GA
    It happens with my iPad, but not my Droid x.
  18. old-wiz macrumors G3

    Mar 26, 2008
    West Suburban Boston Ma
    I have polarized sunglasses, and one of the displays in my car disappears when using them.

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