How Does The Basic Physics of LCD Technology and Plasma Works Essay examples

How Does The Basic Physics of LCD Technology and Plasma Works Essay examples

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Until recently people were stuck with large clumsy CRT (Cathode ray tube) devises within their everyday life, within the space of a decade after their move to television screens LCD’s (Liquid Crystal displays) and plasma screens have made CRT Displays obsolete. In this article I will explain in detail how the basic physics of LCD technology and plasma works and compare the two and decide which one is better for your needs. The wide range of applications for LCD displays are used for is impressive; they include computer monitors, televisions, instrument panels and signage. Many Consumer devices such as video players, gaming devices, clocks, watches, calculators, and mobile phones have benefited from the unique Characteristics of LCD displays. They are available in a wider range of screen sizes than CRT and plasma displays and are the most popular display technology by far. Plasma screens have some advantages over LCD screens
Modern colour LCD screens work on a similar principle to monochrome LCD screen, the main difference is the configuration of the pixels and the source of the light. One pixel on an LCD screen is made of 3 sub pixels each of which is a primary colour but each sub pixel is activated by current passing through the through an electrode and changing properties of the liquid crystal. This type of LCD screen is made up of 7 layers the first of which is a fluorescent backlight differing from the mirror on the basic LCD, this allows for the screen to appear bright and to been seen well in a dark room. The screen consists of a mirror then a layer of polarized Film, a layer of liquid Crystals sandwiched between a positive and negative electrode/glass, another layer of polarised Film set perpendicular to the other piece of ...


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...re vibrant colours. Some high end LCD screens can have refresh rates and viewing angles that a similar to plasma screens while keeping all of the benefits of the LCD screen. Lastly Plasma screens are less energy efficient and could overheat if not put in a well-ventilated area I think I good quality LCD screen would be the best choice for your home theater because the theater will be in an enclosed space so their will be no overheating problems. You will avoid problems like burn-i and shortened life span which a re problems which have hampered Plasma screens. Also by buying a high end LCD TV u will be avoiding all the problems that have hampered earlier LCD screens like slow refresh rates. If you buy a good LCD screen it should give the best overall experience because u will avoid the problems of plasma screens while minimizing the problems with LCD screens.



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