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.
Jim
> My Mp2k screen has been developing a peculiarity. For some time now, the
> screen has had a couple of 'blobby' spots that would only show up under
> fluorescent lighting. One was near the top and one was along the button
> bar at the bottom [portrait orientation]. Well now it seems they have
> merged! I now have on emajor 'blob' covering the centre area of the
> screen.
> It's not the end of the world, it only shows up in class or under my
> desk lamp. Under normal conditions [daylight, incandescent, or backlight
> on] it is not at all noticeable and has no effect on text input,
> usability, etc. but it *is* rather odd. Can any [screen] experts offer
> an explanation? The 'blob' looks like a liquid 'rainbow' oily patch, and
> I can smear it around the screen, though it just returns to the middle.
> Is there a possible fix? Can I massage the screen somehow? It hardly
> seems worthwhile to take it apart...
>
>>> scOtty teCHnoir
>
>
>
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