Posted by Bob on 11/29/05 19:35

On Tue, 29 Nov 2005 18:35:52 +0000, Paul Hyett
<pah@nojunkmailplease.co.uk> wrote:

>>8. Progressive scan

>What is this, anyway?

Non-interlaced scan.

http://hometheater.about.com/od/beforeyoubuy/a/progressivescan.htm

"Progressive scan differs from interlaced scan in that the image is
displayed on a screen by scanning each line (or row of pixels) in a
sequential order rather than an alternate order, as is done with
interlaced scan. In other words, in progressive scan, the image lines
(or pixel rows) are scanned in numerical order (1,2,3) down the screen
from top to bottom, instead of in an alternate order (lines or rows
1,3,5, etc... followed by lines or rows 2,4,6). By progressively
scanning the image onto a screen every 60th of a second rather than
"interlacing" alternate lines every 30th of a second, a smoother, more
detailed, image can be produced on the screen that is perfectly suited
for viewing fine details, such as text, and is also less susceptible
to interlace flicker."

It only matters with very large displays.


--

"One must realize that the world is a network of real and virtual
combat zones where the stakes are high, struggle is the primary
mode of being and only total victory is acceptable.
-- Sun Tzu, "The Art Of War"

[Back to original message]