Understanding Hi-Def TV

When you go to the store to the first high-definition TV, you can be overwhelmed by many, many different specifications, you will find in each. Although a complete description of the different specifications would be a book, you can more than the difference between plasma and LCD in minutes.

Start with a difference. The three basic types of high definition TV available today, LCD TV, Plasma TV and DLP TV, a modern version of the old projectiontv. LCD and DLP are backlit, making it difficult to deal with black color display, plasma TV said in a slightly different way, it was very realistic black, but tend to be slightly more expensive and more fragile. A DLP TV usually looks good, and the backlight is easy to call everyone out, so it may be the longest duration of all other HDTVs out there, and if you have a projector instead of a closed system, is can scale image to fitroom – an advantage. But DLP TV are probably the worst picture of the three did not.

Then size. All channels in high definition on a wide aspect ratio, so instead of the nearly square TV screen traditional media, have a screen in the form of cinema, often 16:09 proportions. This is no different, do not worry. (Television normal for comparison has a 04:03 aspect ratio, but is almost never mentioned screens.) Word measured on the diagonal, then a high-defTV may seem less of a traditional television screen, with the same size as that – and it is unlikely that it fits the same space. Keep this in mind.

The resolution is more complicated. Traditional TV and 480i resolution. This means that the image on the screen in 480-line, "i" stands for "interlaced," meaning that the odd lines are displayed first, then more lines, with about 1 / 60 of a second one down ' others, before moving on. Our vision tricks us to believe that a smoothscreen. Rare 480p TV has seen all lines at once, and you have a clear picture better notice.

During a TV in high definition, on the other hand, started to 720p, and most are just around 1080p. Remember, you are sure that all video devices such as Blu-ray and decoder, in accordance with this decision. A mismatch here is the main reason for a high definition TV can not only look as good as it should. Also, more is not better when it is better if 1080pdevices do not match (and most do not), you will not be a good idea.

All high-definition TV standard specifications fall in the next series. Test your TV and connected devices as close as possible and see the best experience.

* 1080 vertical lines of 1920 pixels, 16:09 aspect ratio, and is 60i, 30p or 24p each (the reference time between updates)
* 720 1280 vertical lines of pixels, 16:09 aspect ratio, and is 60i, 30p or 24pDisplay
704 * 480 vertical lines of pixels, 16:09 or 04:03 aspect ratio, and is 60P, 60i, 30p or 24p each

When choosing a high definition TV, multiple rules are generally better, is better than 16:09, and a wide range of p more for the best. While HDTV is compatible with traditional broadcasting, it is smart to invest in HD channels, the picture is much, much better with high-definition TV.

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Projection Screens Articles Comments 0 Jun 15th, 2010

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