i have noticed these rings also on my messagepad but they seem to come and
go. i notice them most of all if i put too many papers in the case over the
screen or if there's too much stuff in my bag - i am guessing that the
prolonged pressure on the screen has something to do with it...
they do seem to disappear after a few hours though. i just remind myself to
be more careful.
cheers,
aaron tester
> These are called, appropriately enough, "Newton's Rings' (thought for
>Issac (sp?) Newton who discovered them. They're caused by the very
>small gap between the two layers of the touchscreen, which causes light
>to be reflected and refracted in strange ways - I'm not sure of the
>exact physics involved. Flourescent light is worst I think because it
>has spikes in it's spectrum. There's nothing you can do about them that
>I know of, though a screen protector may mask them, and the touchscreen
>replacement being developed by cgrier (don't remember his real name,
>just his mail) should have reduced if not eliminated this, as I'm sure
>touchscreens have gotten better over the past 5 years.
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