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Tuesday, August 25, 2009

Full High Definition Television Explained

By Marshall Denyer

When buying a television, it is important to learn the difference between full High Definition, HD ready and analog sets with HD converters. Full HD is a term that refers only to sets designated as full HD LCD TV sets or full HD plasma sets.

Full HD - A full High Definition plasma set should have a pixel count that is labeled 1080p. Generally it has a contrast ratio designation as 1920 by 1080p. A full HD LCD TV set should also have a pixel count label as 1080p. You may also see the contrast ratio is designated as 1920 by 1080p. With this 1920 by 1080p ratio, HDTV broadcasting is the best it can be. This is because full High Definition LCD TVs and full HD plasma sets can process and display high definition 1080p signals, the highest signals from HDTV.

Full High Definition plasma sets also play blu-ray at its highest capacity and high definition DVDs as well. Full HD LCD TV sets broadcast in widescreen as do full HD plasma sets.

HD Ready - Full HD LCD TV sets and full High Definition plasma sets are different from those that are simply HD ready. HD ready is indicated by a 728i or 1080i pixel rate. HD-ready sets have tuners to adjust for the difference between their pixel rates and High Definition broadcasting. These sets are reported to have good pictures for their price range and compare favorably with full HD plasma sets and full High Definition LCD TV sets.

Set Sizes - HD ready and full HD LCD TV sets can come in smaller sizes. LCD sets actually come in small sizes such as 10 inches. Sizes used to stop as a 42 inch TV but now are as large as 60 inches. HD ready and full HD plasma sets come in 50 or 60 inch sizes usually. It is possible now to get a 42 inch TV plasma set from some manufacturers. Keep in mind that similar size does not mean the same picture quality.

HD Sets - All High Definition televisions are wide-screen. They have a ratio of 16:9 just as the HD broadcasts have a ratio of 16:9. This differs from the analog broadcast, which was a 4:3 ratio. LCDs are always widescreen due to either because they are HD ready sets or full HD LCD TV sets. Thinness is not an aspect of HD broadcast ability. It is simply a reflection of the technology used to make LCDs. Plasma sets are also widescreen, due to HD ready or full HD technology. Again, you cannot measure HD abilities by the thin size of many plasmas. This has little to do with whether or not a set is HD ready or a full HD plasma set.

HD Converter - For analog television users, an High Definition converter is a must. Almost all analog signals have been or are being replaced by digital signals. Only an HD converter can make an HD broadcast into an analog signal. Many users report that an HD converter has improved their analog picture considerably. Still, this is not a full HD picture as defined by manufacturing standards.

HDTV Online - High Definition TV online is accomplished through the pixel rate on your computer screen. It may or may not be high enough to deliver true HDTV. To find out if HDTV online is true full high definition, you should compare your pixel count and resolution to 1920 by 1080p. If it is lower, it is not full HD as compared to full HD LCD TVs and full HD plasma sets. - 18424

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