It’s been around for a while, but only recently has it made a huge difference. The question, of course, is “why”. What is HDTV technology and how is it so different that it’s become so much more important these days than ever before by it’s predecessors? Here are some highlighted points of interest.

For starters, the origination of HD is simply “better quality”. Back in 1934, the first High-Definition TV was only called HD because it was a better quality TV than other that were out at that time. It meant higher resolution, but when you compare it to the new age TVs, it’s not even close. Back then, a High-Definition TV had a 30 pixel resolution. These days, the typical TV has at least 800,000, usually more. So it all comes down to the times.

Blu-ray has opened up the use of HD like never before. In the past, HD affected what you watched by a marginal, albeit noticeable, amount. The images may have been a little clearer, but nothing compared to what Blu-ray has opened us up to. The catch, of course, is not only that you have to have a Blu-ray player, but that you have to have HDMi connections on your TV to use it.

This is what the point of HD really is, however. Being able to utilize higher quality is more than just having a higher quality TV, but also a higher quality broadcast, be it by DVD or cable TV. That is what makes HD so much more advance in the modern world, because of things like Blu-ray and HD channels. They have their own compressed pixel ratio that you can’t even see with a regular TV, making HD seem so much more exclusive as well as effective.

Because HD has become so much more important, it now comes in a completely different form. That’s why you need to have HDMi connectors to even use the real HD aspect. An HDMi connector is a high-definition multimedia interface, and is capable of reading and translating the digital information from an HD source to put it on your screen. Only certain things can use the HDMi port, and are the only things that can utilize the full potential of HD.

The aspect of quality is in question based on the medium to which you are watching HD. That is to say the difference between 1080p and 1080i. Most TVs have 1,080 lines of resolution, meaning that the image you are viewing is broken up into 1,080 lines. More lines, like with pixels, means higher quality, so 1080 is a pretty decent resolution.

The difference shows up between the “p” and the “i”. The “p” means progressive scanning, meaning that all 1,080 lines are displayed in sequence, providing a higher quality image. The “i” means interlaced scanning, meaning that 540 of the lines are scanned alternatively (the 540 even lines followed by the remaining 540 odd lines), to help reduce bandwidth consumption. Progressive scanning, of course, is a much crisper image display, and doesn’t have a “twittering” image that interlaced scan has, but in return, it uses more bandwidth.

All that’s mentioned here are just a few reasons why HDTV technology is so much greater than ever before. It all comes down to technological advancement, which means all HD products need to be used together to really get what everyone is raving about. And that is all why HD really makes a difference.

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