On 7/3/06, James Richard Tyrer <[EMAIL PROTECTED]> wrote:
The question that I have is how an LCD is updated. Does it update with a (progressive) scan like a CRT or is it double buffered and updates the whole screen at the vertical sync pulse? This is going to make some difference in how a movie looks but there isn't anything that the graphics board can do about it.
The LCD display is like an array of memory cells, but they can only be updated one at a time, so they're updated in a raster-scan pattern.
LCD computer monitors would present different frame rate issues. Many of them are only 60 fps and would be treated just like TV, but there are some that support higher vertical refresh rates.
They usually support higher rates, to very little useful effect. That is one way to reduce the smear.
I would suggest that we support 72 fps since this is 3 times the movie frame rate which would display movies a little better than 60 fps since there would be no stutter (each progressive frame shown 3 times).
With the sample-and-hold, I don't think this would help. When the pixels do change, you're still going to see both the hold values and the new at the same time. _______________________________________________ Open-graphics mailing list [email protected] http://lists.duskglow.com/mailman/listinfo/open-graphics List service provided by Duskglow Consulting, LLC (www.duskglow.com)
