PDA

View Full Version : what does the "no interlace" mean



jasc
01-31-2002, 01:49 PM
what does the "no interlace" mean, and what is the benefit?

nickels
02-12-2002, 01:53 PM
Some monitor modes use interlaze, which says that basically the whole screen is traced at every other scan line once, then the scene is traced again on the other scan lines.
The eye can't necessarily tell the difference, since it all happens so fast.

no interlaced is the opposite of this.

I believe this is a property of cheap monitors and the result can be a little bit noisy.

Whether you want this or not is entirely dependant on whether or not the mode you wish to use with your monitor is interlaced.

nexusone
02-28-2002, 12:49 PM
Your TV works on an interlace mode is an example, anything sent to a TV or video(standard) would have to be interlaced.
Some monitors do one or both.
It takes two scans to get a complete picture in interlace mode.
Interlace is made up of two scan frames, odd and even. First scan is the even lines, the next is the odd.

Non-interlaced one scan = one complete frame.

If you have a non-interlaced monitor, some say that you get less flicker. Maybe some improved video speed....


Originally posted by jasc:
what does the "no interlace" mean, and what is the benefit?

03-05-2002, 07:54 AM
I think interlaced modes are designed for slower refresh rates to prevent flicker. If the refresh is slow enough, your eye will notice that the top of the screen is being drawn sooner than the bottom. The solution is to not draw everything from top to bottom (see previous posts explaining what interlaced does). However, modern displays run at over 70hz, and interlaced graphics are no longer needed; they're basically slow and wasteful.

Owlet