Sony‘s previous TV, the KDL-46W3000, was a serious disappointment, with pictures largely ruined by overt smearing and motion blur. So we can’t say we’re expecting very much from the new 40in Sony KDL-40W4000. Terrific is the 40W4000‘s black level response. Sony has been making stead improvements in this department with every successive LCD generation, but it’s really leapt forward here to the point where dark scenes genuinely look as credible and as rich as they do on many plasma offerings. Colours, meanwhile, enjoy consistent tones without sacrificing the vibrancy that’s long been a Sony LCD trademark. What’s more, the new Bravia Engine 2 processing helps colours achieve seemingly immaculate blends, with no striping or patchiness.There’s also practically no video noise aside from a very occasional shimmer over some patches of fine detail, and this applies to standard as well as high definition.In fact, with the set’s sound also outperforming many of Sony’s previous flat TV models, it’s really hard to find much fault with the 40W4000 at all. Read this and dozen of other expert and user reviews @ Testfreaks.

LCD rear projection television should not be confused with LCD flat panel televisions. Rear projection LCD uses a powerful light source through a transparent LCD chip made up of individual pixels (which displays the moving video image) and projecting that image through a magnifying lens, to a mirror, which then reflects that image, onto a screen. Because the chip is so small the panel of a rear projection television can be made very thin and light unlike in televisions that use the CRT (cathode ray tube) technology.

Although they are still far from being hanged up on the wall like plasma or LCD flat panel televisions they can save quite a lot of floor space. They are also cheaper than plasma and LCD flat panel and come with wider screens. LCD rear projection technology is also brighter and offers more contrast. LCD screens are less likely to suffer burn in so they can be used as computer monitors at the same time unlike plasma screens that are likely to burn in fast because a computer would be on for longer.

Plasma television is almost always a flat panel; this is because it uses technology that allows it to be housed in a smaller panel. Similar to the technology of the fluorescent lamp, the display of a plasma unit contains xenon gas between two glass panels. The gas is injected in the form of plasma; when the gas is charged electrically it lights up red, blue and green phosphors and so an image is created. Red, blue and green phosphors make up a pixel.

Meanwhile traditional CRT models use a large vacuum tube, where and electric beam scans the surface of the tube to light up the phosphors and is the reason they have to be housed in larger units.

Plasma televisions are considered to provide better quality picture than LCDs especially in the larger sizes. They display high definition content and colors better than LCD but LCDs perform better in smaller sizes especially for computer screens and small televisions sets for the kitchen and bedroom. However, most people consider bigger plasma screen of 40 inches and more for the living room for movies.

Plasma televisions offer a better price to size ratio than LCDs but LCDs are offers more models in the smaller sizes than plasma which has mostly larger screens. Smaller LCDs screen are better for computer and games usage and for sets in the bedroom and kitchen. Source: http://www.flatscreenhdtvguide.com

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To read more about Plasma vs Lcd TV differences and get reviews for less than 42 inches all the way to more than 60 inches plasma and lcd television popular models , go to http://www.flatpanelhdtvguide.com.