polarized sunglasses and iPhone 5

Discussion in 'iPhone' started by dckcentaur, Sep 22, 2012.

  1. dckcentaur macrumors member

    Joined:
    Jul 11, 2008
    #1
    Does any body notice that when wearing polarized sunglasses and looking at the iPhone 5 screen it has a pretty bad green tint? My 4S only had a slight difference. Living southern California I wear sunglasses a lot. I was wondering if it is just my iPhone or others are experiencing the same issue.
     
  2. HXGuy macrumors 68000

    Joined:
    Mar 25, 2010
    #2
  3. MrXiro macrumors 68040

    MrXiro

    Joined:
    Nov 2, 2007
    Location:
    Los Angeles
    #3
    My 4S had this issue... I noticed some phones have the issue vertically and some horizontally. My 4S would be red and green when turned to landscape mode.

    It probably has to do with how the reflective film was originally cut.
    I am only theorizing.
     
  4. BmoreDrumGuy macrumors regular

    Joined:
    Mar 12, 2010
    Location:
    Baltimore, MD
    #4
    If I was turn my iPad on its side, I'd completely loose the screen. Always triped me out when wearing my prescripts.
     
  5. Mliii macrumors 65816

    Mliii

    Joined:
    Jan 28, 2006
    Location:
    Southern California
    #5
    Here is the simplified explanation:
    More than you ever wanted to know about Polarization-
    Polarized glasses use a film created from rolls of polyvinyl acetate which has the consistency and thickness of plastic wrap. The plastic is heated and stretched which lengthens the plastic's long chain molecules, causing them to align. It's then dipped in iodine solution which is absorbed into the molecular chains forming long grids of parallel, darkened lines that are not visible to the human eye. The film is then dyed to the color of the desired finished.
    For the polarized film to be most effective in sunglasses, it's oriented to reduce the horizontal component of reflected light off a surface. Manufacturers have proprietary formulas for calculating the proper angle.

    The iPhone screen is also Polarized- it's supposed to be done to a 45 degree angle allowing the most effective use in both portrait and landscape mode.
    But if the angle is off and/or the angle the sunglass manufacturer uses to place their polarization film is set in a certain way, you essentially have two sets of 'invisible' grids that cut out the ambient light and can cause a screen to either darken or undergo a color shift. (take off the glasses and rotate them while looking at the iPhone screen through the lenses and you'll see the color shift and or darkening change).
    That's what you are seeing.
    And it isn't limited to the iPhone- all products with polarization do it to a certain extent.
     
  6. QuarterSwede macrumors G3

    QuarterSwede

    Joined:
    Oct 1, 2005
    Location:
    Colorado Springs, CO
    #6
    I was going to say my 4S' screen goes completely dark when I've got my polarized sunglasses on. That would explain the differences in experiences.
     
  7. CyBeRino macrumors 6502a

    Joined:
    Jun 18, 2011
    #7
    And not just that. All LCD screens are.
     
  8. Mliii macrumors 65816

    Mliii

    Joined:
    Jan 28, 2006
    Location:
    Southern California
    #8
    Keep reading...:D
     
  9. dckcentaur thread starter macrumors member

    Joined:
    Jul 11, 2008
    #9
    So basically I should just live with it I guess. I do understand a slight tint but this is major tint change (see pic)
     

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  10. CyBeRino macrumors 6502a

    Joined:
    Jun 18, 2011
    #10

    I did ;) You never said anything about all lcd products, just about all "polarised" products.

    ----------


    Yes, it's an unavoidable trait of the technology. Any phone will do this.

    If you get really lucky, you won't be able to see anything on the screen at all!
     
  11. dgstan macrumors 6502a

    Joined:
    Jun 29, 2010
    #11
    That's the way it is on my iPad3 when wearing my Ray Bans. In portrait mode, the screen is completely dark.
     
  12. nostresshere macrumors 68030

    Joined:
    Dec 30, 2010
    #12

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