HD Vs Full HD or 720p Vs 1080p

Definition defines the definition of a high definition TV.

Does that seem a little confusing to you? Well let me explain in other words. Definition is another term that is loosely used to refer to display resolution, which is a term that is used to refer to the number of different pixels in a single screen. Regular display quality standards in modern consumer electronics tell us that the HD range starts right at 720p. From this point onward, all TV units capable of display resolutions equal or higher than that is already considered as an HDTV.

But the electronics industry never set the standard at only 720p, and although it does not necessarily end at 1080p, regular consumer media trends usually tend to sway only between these two resolutions. So, would there be any of the two that is better suited for my viewing experience then? Maybe, but that depends on a number of different factors. Defining 720p and 1080p What do these two numbers mean? These numbers are representations of the number of pixels that is present on vertically on the screen. So when the resolution says that it is 720p it means that the screen or media file has a size of 1280×720 pixels,1280 individual pixels at the top and bottom, and 720 individual pixels at the both sides.

The same is true for 1080p, although the horizontal pixel number would also of course change, into 1920×1080 pixels.
The difference between the two is already plainly seen as it is.
720p has in total of about 1 million pixels, while 1080p doubles the amount to 2 million. When compared side by side, 720 would look a tiny bit more blurred than 1080p.

And when compared to lower resolutions like 480p and 360p, there would simply be no competition.
However, despite this clear difference, in terms of the acceptable display resolution, it would largely have to depend on the HDTV unit and it purpose. Sure 1080p might provide superb detail, but 720p does not limit your viewing experience if you are using comparatively smaller HDTV units.
Why Knowing the Right Resolution for You is Important Still, even if 720p and 1080p are only separated by a pixel number value, knowing the display resolution that you need is still important, and here are a few technical reasons why: First, it would help you balance your budget better. Would having a better resolution really worth the price? Or, would it be wiser to stick to a smaller screen resolution? Depending on your final decision you can save a lot of money.

After all 720p is hardly a dismal resolution. Your viewing satisfaction may actually even allow you to appreciate the picture quality despite a few tiny bits of imperfections.
Second, it would help determine your preferred viewing distance more accurately. This is perhaps the most important thing that you have to consider when choosing the correct resolution.

If you plan on using the HDTV on a wide theater-like room, then 1080p is the way to go.
If you would need to place the unit nearer to the viewer, then 720p should do just fine.
For instance, there are some people out there who like to use an HDTV as a computer monitor. Of course, getting a giant TV would ruin their viewing comfort at close distance, so an HDTV with a smaller resolution would more preferable. Third, it can help preserve the viewing quality of some of your other media files or discs. Your HDTV might support 1080p, but what if most of your media discs or files are not in 1080p? The stretched image from your DVD player would probably just blur out and lose quality when it is viewed from a 1080p screen.
In 720p, the video might still have a few clarity issues, but at least it's not going to be as bad.