1080p 3d lcd hdtv

There are a lot of mess around the 1080i and 1080 standards. First, I’ll explain, what each of them is like and where is this mess from.

There are two parts of these two high quality figures. The first one – is the number by itself, which refers to the number of horizontal lines, which make up the image. The TV with a standard resolution consists of about 575 visible lines, and wide-screen one – either 720 or 1080 lines. The second part – is a letter, which mark the type of signal pickup – with interlacing or with noninterlaced scan.

In the TV with a standard resolution each frame of the image (there are 25 of them per second) – consists of two television fields. Each of these television fields contains half of the information, which makes the whole picture. On the usual CRT TV these two television fields are displayed one by one, very quickly. It happens so fast, that your eye doesn’t have time to see the whole process and see one undivided image. It’s called interlacing. This technology is very good for television because it keeps the frequency band, and CRT TVs cope with the signal so good that you even don’t notice how it happens.

Plasma and LCD TVs works otherwise. Instead of this they show all frames at a run. This process is called noninterlaced scan. Standard TV signals must be processed before displaying.

The fact that flat screens don’t use interlacing means that there is no 1080i LCD or plasma. Instead, these screens offer their own resolution – 720p or 1080p. If the TV with a flat screen is advertised like 1080i, in fact it means only 720p TV, which processes 1080 lines of interlacing in 720 lines of noninterlaced scan. To get the label “HD Ready”, all the TV must support 720p and receive incoming signals of 1080i.

There were a lot of 3d LCD TVs with 1080p panels – the ones with their own resolution of 1900x1080 pixels – but they couldn’t support 1080p, so they converted it from the inside, and then counted back for the display. It’s a full stuff, and such TVs should be avoided tooth and nail.

So, it’s getting easy to choose between 1080i and 1080p TV models, because you can decide, which TV is better for you on the basis of your television preferences. If you generally watch usual LCD HD TV and want to watch DVD and maybe sometimes high definition 3d lcd TV via satellite or cable, then 720p TV will be quite good for you, especially if you’re planning to buy the TV with the diagonal less than 37 inches.

If you play a lot on PS3 or Xbox360, like to watch movies either HD DVD, or Blu-ray, and you need screen more than 37 inches, you probably need a 1080p TV. Although it’s not the main, you’ll sooner see the advantage of 1080p with these products.

Do you want to know if the human eye can discern the difference between 720p and 1080p resolution on HD screen?

There is a limit of how clearly we can see, that’s why there are places, where the elements of the image (in pixels) will be so small, that they simply cannot be seen. There is a threshold of the image size, where the zoom into 1080p will be lost. For a fixed distance of viewing a minimal width of the image to distinguish some details for 1080p is more than for 720p.

Although most of those displays, in which this threshold occurs, have small size, we use another approach to image size. We consider that the image with 1080p resolution must be at least one and a half meters in width. If you’re rather far from the screen, then any image will look equally good.

Therefore, for small and medium-sized screens the difference between 1080p and 720p isn’t noticeable.