A plasma TV can completely turn around your lounge room viewing experience. But what should you look for when purchasing a new television? Our plasma TV buying guide can help you decide.
Plasma TV technology
A plasma TV, like an LCD TV, consists of a substance sitting between two panels of glass. However the substance used in a plasma television is made up of small chambers of gas within each sub-pixel. When an electrical current is passed through the substance a reaction is caused in the gas and UV light is emitted. Each sub-pixel also contains phosphors and when UV light is emitted the phosphors emit their specified colour of light (red, green or blue).
The gas used in plasma TVs emits its own light, unlike LCD TV, which require a back light. Plasma TVs therefore generally product deeper blacks (also known as a contrast ratio – the higher the contrast ratio quoted for a flatscreen TV, the better the quality of the whites and blacks on-screen).
Plasma TV screen size and space
Looking for a massive TV? Then you should be looking at a plasma. All those mammoth flatscreen TVs you hear about (we’re talking over 100-inches) are plasma. These days however a lot of manufacturers make these screens in smaller sizes, and a popular flavour seems to be a 42-inch plasma.
Plasma televisions are also better for viewing areas that extend a long way to each side away from the screen as they have a better viewing angle than LCD TVs.
Plasma TV response time
Just like LCD TVs, you should also be aware of something called response time when it comes to sussing out your new plasma TV. A lower response time is considered better as a higher response time will cause fast-moving images to blur slightly. It’s measured in milliseconds (ms).
Plasma TV and HDTV
Just because you see the term “HD” or “high-definition” used somewhere in connection with an plasma TV, it doesn’t necessarily mean you’re getting full high-definition. To be sure of what you’re getting, check the native resolution of the screen, which refers to the number of pixels that can fit on the screen. True HD is defined as 1920×1080 pixels, which also appears as 1080p and Full HD. However other resolutions are also classified as being high-definition, including 1366×768 and 120×720 (also known as 720p).
To the untrained eye, these lower forms of high-definition won’t prove much different to view than Full HD screens. And don’t forget, there’s no point having a high-definition TV unless you have a high-definition source to feed it, such as a Blu-ray player or HD broadcast.
Best plasma TVs
Plasma TVs are manufactured by many, but perfected by few. Many of us love Panasonic Vieras, such as the model pictured here, and Samsung plasma televisions.
Buy a cheap plasma TV on sale
Guide originally published June 4, 2009; updated May 13, 2010.
By Caroline Warnes
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