Charlie wrote:
> "Drew"  wrote in message 
> news:49ac0b0c-41d8-4cc5-88c9-5284009fc9e9{at}l76g2000hse.googlegroups.com...
>> Hi,
>>
>> Still on the hunt for an LCD that will work with the GS, so decided to
>> buy a Samsung 940MW which i thought would work ok (from posts on forum
>> etc), though on plugging a RGB Scart cable into it i get the same
>> focus/motion blur when parts of the screen change exactly the same as
>> the SM-2032MW I tried. Picture is stable and colours look ok, just
>> doesn't seem to cope very well when things change i.e opening menu
>> etc... any idea why this would be and is it something i can fix via
>> the RGB cable?
>>
>> Thanks in advance...
>> Drew
> 
> Drew,
> 
> I use a Samsung 940MW with Roger Johnstone's (Vintageware) RGB-SCART cable. 
> There is a slight banding (vertical lines) where two differ colors meet.  I 
> have always believed that the motion blur you are seeing was the effect of 
> this banding when you move something on the screen.  Looking at it again 
> after reading your post, I'm not so sure. The trail following the mouse is 
> longer than one line (considerably).  You can see it best on my machine when 
> you open a window in the finder and run the mouse back and forth over the 
> striped area of the title bar.  I did notice that you can actually see the 
> mouse arrow change from fuzzy to sharp when you stop.  This indicates to me 
> that there is some kind of delay in synchronizing that is way too long. 
> Still for me this is the best option, I know of, since I keep both my PC and 
> my IIgs connected to Samsung 940MW all the time and can even view both on a 
> split screen.

Maybe you are seeing artifacts of digital processing in the monitor.

Since NTSC-rate video must be significantly upsampled to fill a modern
LCD monitor, it's likely that some filtering and edge enhancement is
done, at least for slowly moving or static images.

Sophisticated monitors (more all the time) even do frame-to-frame
interpolations, deinterlacing, and 3:2 pulldown processing (when
it thinks it applies--like when two successive fields are identical).

Sometimes you can use menus to turn these off, and sometimes not...

-michael

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