Purchasing a TV these days is no easy task. Sorting through the different technologies and features available and determining the best choice can be overwhelming. This article will help you understand the competing technologies and make the best decision when choosing amongst Plasmas, LCDs, and projectors.
The most substantial difference between Plasma and LCD televisions is the method for generating the picture. Plasma displays comprise hundreds of thousands of pixels, each of which can be activated separately by an electrical impulse. These pixels release gases that affect the pixels red, green and blue bands to produce most any color in the spectrum. LCD TVs use liquid crystal diodes that, when sparked by an electronic signal, can vacillate and twist to filter the required color, similar in appearance to a double helix. These cells filter out all colors except for the one that is needed from a white light that is produced by a backlight.
Until recently Plasma televisions were significantly superior from a number of perspectives. Because of the winding and unwinding motion of the cells in LCD televisions, fast moving video, especially sports and action movies, often displayed a trailing effect as the images changed and shifted. Plasmas do not exhibit this because each of their pixels is activated individually. Plasmas produce undistorted images at sharply-angled viewpoints, unlike LCDs, whose images could appear somewhat corrupted when viewed at similar angles. Plasmas also revealed much deeper colors than LCDs, with especially strong blacks.
Because LCD TVs have a backlight that illuminates the screen, the picture could appear stretched when viewed at sharp or extremely obtuse angles. Flat screen LCD televisions also had a harder time producing the large screens that many Plasma TVs offered. Finally, LCD TVs were prone to a doppler effect of sorts, leaving a faint trail behind quickly moving images.
LCDs also do not suffer from many of the drawbacks that Plasmas are plagued by. They do not experience burn-in, or ghosting, which makes them ideal for computer usage where one is typically dealing with mostly still screens. They also can be used at any altitude without distortion because their liquid crystals are not affected by air pressure, unlike the gases inside the Plasma screens.
LCD televisions are gradually becoming the clear choice. The primary factor to most consumers, the cost, has evened out so that Plasmas are no longer the guaranteed best-buy. The improvements to the technology and the price have allowed LCDs to become the dominant format in the television industry.
LCDs are improving and becoming dominant in every dimension ” literally: they are now starting to offer 3D models. Moreover, they can last much longer than Plasmas. Although they tend to be rated for equal lifespans, the end of the Plasma televisions lifespan marks the point at which it is half as bright as it originally was, whereas the projected end of an LCD televisions life is marked by the point where the backlight burns out. At these points a Plasma TV will keep fading until the picture is no longer discernible, whereas the LCDs backlight can be replaced.
And as far as the household television is concerned, LCDs are much more appropriate and user-friendly than projectors.
To get all the latest information and lowest prices on lcd and plasma tv, be sure to visit us at www.digitaldirect.co.uk. These links may also be useful 42 inch lcd and lcd tvs 26