Archived from groups: alt.comp.periphs.videocards.matrox (
More info?)
David Glenn Misner <kidmiracleman@netzon.net> wrote:
> On Thu, 1 Jul 2004 10:46:53 -0400, "Arthur Hagen" <art@broomstick.com>
> wroth:
>
>> David Glenn Misner <kidmiracleman@netzon.net> wrote:
>>>
>>> Are you familiar with the ViewSonic G220fb 21" PerfectFlat CRT
>>> Monitor???
>>
>> No, I'm not, but it looks like a very good value for the money ($454
>> at monitorsdirect.com), if you like shadow mask monitors.
>
> I am not familiar with shadow mask what is that???
There's two main types of CRT monitors:
1: Shadow Mask. This is your "regular" type of monitor, with (roughly)
circular red, green and blue subpixels, due to a "shadow mask" with lots of
tiny pin holes in it.
2: Aperture Grille: This is like a Sony Trinitron TV, where the mask
doesn't have pin holes, but consists of red, green and blue vertical bars.
The main advantage of an aperture grille monitor is that less of the monitor
surface is taken up by the mask, giving greater contrast and colour clarity.
There's a couple of disadvantages too, though. To prevent the whole thing
from being too unstable, there's usually two horisontal threads that only
serve to stabilise the grille. If an image is all white, you can usually
see these as two very thin horisontal stripes across the monitor.
Another disadvantage is that despite these threads, aperture grille monitors
don't always travel well. Parts of the vertical mask can be knocked ever so
slightly out of place, with colour deformities and/or lack of clarity in
part of the monitor as a result. Finally, they are usually a tad more
expensive than shadow mask monitors.
Still, many people prefer the clearer picture and better contrast an
aperture grille monitor gives. I'm one of them.
Since Sony has all but stopped making CRT displays (at least within the
price range of normal people), other CRT manufacturers have filled the gap,
and taken over production. The Nec/Mitsubishi DiamondPro monitors, for
example, are produced at the same plants and with the same components as the
Sony F series, with the main difference being the adjustment controls.
Hope that helps!
--
*Art
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