Re: Resolution brain damage confusion
From: Steve Rindsberg (abuse_at_localhost.com)
Date: 05/10/04
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Date: Mon, 10 May 2004 17:25:08 EDT
> But now Im further curious. If the laptop display is fuzzy, why
> wouldnt the projection from that laptop not also be fuzzy? Is the
> video output different from what is actually displayed on the laptop
> screen?
LCDs have what you might call a "native resolution". Just one of 'em, unlike CRTs,
which can adjust their scanning frequency and other technomumbojumbaloids on the fly.
If you feed the LCD a video signal that's lower/higher than its native rez, something's
got to convert the input pixels to LCD pixels, so the image gets resized, effectively.
Send the same number of input pixels to an LCD running at matched resolution (ie, send
1024x768 to your 1024x768 projector) and no resizing's necessary.
>
> Steve Rindsberg <abuse@localhost.com> wrote in message
news:<VA.00000541.3d89c992@localhost.com>...
> > > Its that time of year when Todd begins asking question pre sympsoia
> > > events ;^) We have the new Dell Inspiron XPS laptops. Man these are
> > > beasts - like small desktops. They come from the factory set to some
> > > unreal resolution (1600x a zillion or something) ;^)
> > >
> > > For powerpoint presentation heading to an LCD projector, do I need to
> > > set this back to 1024x768 or can I run at default?
> >
> > I'm only on the other side of West Campus, Todd. Send one over and I'll give
> > it a thorough testing and get back to you within the year.
> >
> > If you need to use 'em before you're in the neighborhood, I'd set them back to
> > whatever resolution your projector maxes out at. If the native LCD rez of the
> > laptops is really 1600 by gazillion (and it may well be) then the laptop
> > display may look a bit fuzzy; the projected image should be fine.
>
-- Steve Rindsberg, PPT MVP PPT FAQ: www.pptfaq.com PPTools: www.pptools.com
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