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The light that LCDs emit is polarized. Polarized sunglasses block almost all light of the wrong polarization and almost no light of the right polarization. Sunglasses have to have the polarization oriented a certain way in order to block out glare from horizontal surfaces. LCDs on laptops, watches,
and other PDAs should orient their polarization to match so that people can wear polarized sunglasses to dim the too-bright world without dimming the display at all.
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You have got to be kidding. |
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As a habitual wearer of polarized shades, I can report from experience that just about all LCDs are correctly polarized (in the horizontal direction). Somebody out there, clearly, was thinking. |
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Oops. I stand corrected: the (UK-made) Psion 3a PDA has the wrong orientation. I guess people in the UK don't notice, as it is rarely sunny. |
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why would you be wearing sunglasses while working on a laptop? |
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My ibm thinkpad a31p laptop is polarized incorrectly. My previous thinkpad (a 560) was polarized correctly. My Palm V and my Kyocera 6035 (palm-based) smartphone are polarized correctly. |
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Also, I rented a Volvo S80 (the high-end volvo) and was annoyed to discover that some of the LCS displays had one orientation, and some had the other. The instrument panel was OK, but the radio was incorrect. |
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chris - why *wouldn't* you be wearing sunglasses while working on a laptop? |
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I have played with polarized glasses in a room full of assorted LCD displays and was surprised by their apparently random alignment. I think the likelihood of getting every LCD supplier to settle on vertical final polarization is pretty slim. If you're typically only looking at one display at a time then I'm with Steve on adjusting the glasses instead. |
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I used to wear polarized sunglasses while driving, and found that a lot of gasoline pumps had LCD displays oriented the wrong way. |
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I really think the industry needs a polarization standard. As to circular lenses that rotate, easier said than done. |
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"why would you be wearing sunglasses while working on a laptop?" Maybe you are outdoors. |
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This is really annoying on my Canon S80 camera - if I'm wearing my sunglasses, I can't shoot in portrait. I think polarising on the diagonal would be most sensible. |
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