Thursday, December 15, 2011

How HDTV Is Taking Over The Entertainment Industry

By Kim Pascel


There's an awful lot of talk about HDTV technology, more so now than ever. What makes it so much different now to make it so much more popular? Well it's an answer based on several other technologies that are around now that never have been before, and the difference they all make. Some are listed as follows.

High-Definition is a broad term because it just means better quality, which could mean anything. The term high-definition used to refer to TVs back in 1934, because they were very high-definition when compared to their earlier models. What HD really means is higher resolution, and HD nowadays means a lot higher. The traditional pixel resolution for HD is 800,000 or more, which far surpasses the 1934 HD's 30 pixel resolution.

That's not the only reason why it's a bigger deal now, though. Another reason is advancing technology of output video. That is to say, the invention of things like Blu-Ray. Blu-Ray is an HD medium that makes HD technology not only more supreme, but necessary in order to take advantage of the higher quality. Blu-Ray quality is outstanding, for sure, but you can only use it if you have an HDMi port on your TV.

This is what makes HD so important now, because not only is the quality of the TV improved, but the quality of the video itself is improved. It's not just Blu-Ray, either. Some TV channels are in HD, as well as some other DVDs. They all use their own compressed pixel ratio that can only be seen with HD technology, because a less advanced TV can't utilize that amount of information. The intensity of the picture quality is certainly far greater by comparison than past models.

The problem with these new technologies is that having a high-definition TV is only half of it. You need to have an HDMi connection to even connect them to your TV. HDMi stands for high-definition multimedia interface, and is necessary for utilizing the HD function of many HD-ready things such as the Blu-ray players. Without it, you're only adding a few extra uncompressed pixels.

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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