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Facts About Full HD TV Technology

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Facts about Full HDTV

Among the technological revolutions we’ve experienced within the last decade, Full HDTV (full high-definition television) is significant in that it’s touched everyone who relies to some degree on TV for information and entertainment – and that’s practically all of us. Since we’re all in the thrall of television, it’s important that we understand what the hullabaloo is all about.

Full HDTV is a digital television broadcasting system that offers a higher resolution when compared to the traditional analogue broadcasting system. The resolution of the screen image offered is 1920 pixels by 1080 pixels. Pixels are the tiny dots that make up any image seen on a TV screen. The more pixels, the better the image. Today, most stations now broadcast signals in HDTV, requiring those who wish to opt out of the HDTV digital revolution, to buy a converter box. An advantage not commonly known, TV broadcasts require less bandwidth (room on the air waves or room over a cable) than the old analogue way because of the digital compression.

The Full HDTV broadcasting system involves three important factors:
•    Frame Size. The frame size in pixels is the number of horizontal pixels by the number of vertical pixels. In Full HDTV, the technology is defined as 1920 pixels by 1080 pixels, as mentioned above. Usually the number of horizontal pixels across is used in the technological classification. Thus, we have two different types of technology – 1080p and 1080i
•    Scanning System. The scanning system is an important part of the Full HDTV technology. The “p” in the nomenclature refers to “progressive”. The “i” stands for “interlaced”. Progressive scanning is the more advanced technology. It allows each line of pixels to be cast on the screen simultaneously. Interlaced technology allows refresh of only every other line of pixels at each scan.
•    Frame Rate. This is defined as the number of video frames per second played. Of course, the more frames projected every second, the higher the refresh rate and thus the higher the image quality.

Sports fans and movie buffs were very excited about the advent of Full HDTV technology onto the market. The high resolution and the fantastic digital surround sound promised near-cinema perfection. Another big plus was that movies could be shown in their original wide-screen format, without the annoying “letter-box black bars” at the top and bottom of the screen. It should be noted, though, if your screen is smaller than 42 inches, you may not be able to see much of a difference between HDTV and Full HDTV.

Full HDTV is presented in three models: Rear projection (now obsolete), plasma television and liquid crystal display television or LCD Full HD TV. As you consider Plasma vs. LCD, you should consider three features: Refresh rates, contrast and colour reproduction abilities and response time. When planning to purchase a television, consider all the facts above and opt for getting Full HDTV. It will be the norm for a number of years yet, and a little extra money spent will go a long way in your TV enjoyment.