Interlaced and Progressive display


Interlaced Display

When referring to a computer monitor or other display, interlace or interlacing is a description of how the picture is created. With interlaced, the picture is created by scanning every other line, and on the next scan, scanning every opposite line. This allows for a faster refresh rate by having less information during each scan and often allows the display to be sold at a much lower cost. Unfortunately, this may cause flickering or noticeable line movements in some situations.

Interlaced Graphic

When referring to an interlaced graphic image, such as an interlaced GIF or progressive JPEG these are images that are displayed by loading every other line of the image and when at the bottom starting over and loading every opposite line. This image is often only noticed by users with slow Internet connections, such as users with a modem connection or when downloading a very large image and will often appear to fade in as it’s being loaded.

Progressive (Non interlaced)

When referring to a computer monitor or other display, progressive also known as a noninterlacing scan is a method of how an image on a computer monitor is refreshed. With progressive, every line on the monitor is refreshed during a scan. This provides for a higher quality display and less chance of noticing flickering or line movements on the monitor. When considering between an interlaced and a noninterlaced monitor, a noninterlaced monitor is commonly recommended.

Difference between Interlaced and Progressive

Source – Internet


Posted on March 5, 2013, in Other and tagged , , , , . Bookmark the permalink. 4 Comments.

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