Monday, August 13, 2012

What Is The Difference Between Enhanced Definition & High Definition Televisions

Enhanced definition and high definition are two of the three available formats of digital television. The main difference is in the pixel resolution. The third type is standard definition, but its pixel size is the same as that of enhanced definition.


Function


An enhanced-definition television enhances the standard-definition resolution for better quality. A high-definition TV projects the TV image at a higher resolution.


Features


An enhanced-definition TV uses progressive scanning to produce a smoother picture with the same resolution of 480 by 640 pixels as standard definition.


Types


High definition has two resolutions used in televisions. It can have 720 by 1280 pixels with progressive scanning (720p) or 1080 by 1920 pixels with interlaced scanning (1080i).


Considerations








A high-definition television with 720p resolution is thought to be best when watching sporting events or other programs that feature a lot of on-screen movement.


Misconceptions








With rising sales of high-definition TVs, some might think that is the only form of digital television, not knowing about the enhanced format.

Tags: digital television, pixels with, progressive scanning, standard definition