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What is the attribute from which I can know that my monitor can't be seen from "sideways"?

E.g. a man is standing on my left, but he couldn't really see my monitor, because it has low "angle" - only the person sitting in front of the monitor can see it. (for security reasons)

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I think LCD manufacturers see a wide viewing angle as a selling point and wouldn't be keen to admit when their product has a narrow viewing angle. – pavium Jun 17 '11 at 7:03
How about one of theese? – Nifle Jun 17 '11 at 7:18
@Nifle That poor laptop is probably overheating like mad! It's bad enough putting laptops on a bed or something – Connor W Jun 17 '11 at 7:30
@Nifle - If I see these proliferating around the country I shall know who started it... – Joe Taylor Jun 17 '11 at 8:43
up vote 7 down vote accepted

there is nothing that the screen can do for you for this... neither is this a s/w feature. what you need is a privacy screen. you can buy one on ebay. this is what you want... privacy screen choose the right size for your laptop and you're done.

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The ones from 3M are very effective. – paradroid Jun 17 '11 at 11:44

The attribute is called "viewing angle", and there are usually two advertised--horizontal and vertical. 180 degrees is a theoretical maximum (more than that would mean you could see the monitor from behind!) has some information about this..

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