High Definition Televisions
November 18, 2009 by admin
HDTVs (also known as High Definition Televisions) provide a higher resolution and vibrant colors up to five times than standard TVs.
By the time the first set of High Definition Televisions released to the market in 1998, movies and sports fans got really excited with the surround sound and high resolution. With High Definition TVs, movies fans could also play movies in their original widescreen format for the fisrt time without the annoying black bars.
Apart from the picture clarity of High Definition TVs screens, it can be used on mobile phones or public display. High Definition transmission can be received through wired and wireless media; including satellite dishes, cables, mobile phones, PCs and even directly to storage devices with no intervention.
With up to five times better picture quality than standard definition and increased color vibrancy, it’s easy to realize the benefits that High Definition TVs bring to your viewing experience. When including the Digital surround sound system, you’ll be able to experience a cinema at your own home.
How HDTVs work
If you look closely at a color TV screen through a magnifier, you can see that it is made of groups of tiny red, green and blue dots called sub pixels. The TV pictures are always made of these sub pixels, no matter if the TV is analogue or digital. High Definition transmission is simply the transmission of the color and brightness values of these pixels, plus the sound signal, as digital data. These values are then converted back into pixels, and hence viewable pictures, at the receiver end of the transmission path.
The clarity of the picture depends on the difference in the number of pixels; Standard Definition TVs display a 720 by 576 pixels picture, which means the screen is made of less than 500,000 points of light. However, High Definition TVs can display a 1920 by 1080 pixels picture. Which means the screen is made of over 2,000,000 points of light.
How To Choose a New HDTV
You need to answer following two questions in order to choose the HDTV that suits your needs:
Which screen size fits to your room?
Which TV features you can’t live without, and which features can you live without?
At GotUWired we draw a map of all your space and components and help you choose the right High Definition Television brand and Audio receivers that fit your lifestyle.
Finally, you can always get good HDTV advice from one of GotUWired expert Advisors. Contact Them Now!




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