Dec 17, 2009

A Plasma TV or LCD TV, which is better

A Plasma TV or LCD TV, which is better   A plasma TV or LCD HDTV? And 'this your dilemma? This is a 'difficult and complicated comparison between two technologies that transform the image into a totally different way. This article presents the pros and cons of plasma, LCD, like on a television screen. It also provides a set of guidelines to help determine whether the two flat panel technologies that better. Plasma or LCD? What kind of display is right for you? Although both plasma displays and LCD are presented in the form of slim flat panel displays, but from a technology perspective, these two flat panel displays process the image in a totally different way. Plasma with a matrix of small cells of plasma gas, which states that electric light and then emit the creation of image files. Liquid Crystal Display (LCD) panels - work by trapping a liquid crystal solution between two sheets of polarized glass. When an electric current through the liquid crystal, which modifies the polarization of the light through them in response to voltage? through which the light is more or less able, through the polarized glass on the face of the display. It is not the scope of this article to go into the details of how the different display technologies, the picture? after all, what really counts is not what is happening behind the screen, but rather how these different display technologies perform as a TV screen. At the same time, it is worth noting that these differences exist, that each of these display technologies, their strengths and weaknesses, and is therefore more suitable than others, in some cases. The following list shows the main differences between these two display technologies for flat panel: Size: For the period, the conflict between the plasma - TV and LCD TV in 40 to 50 inch screen range. In fact, LCD TV up to about 45? ? which means that for the large size of the screen, a plasma display is the only real option if what you have is a direct view TV system. On the other hand, the small end of the spectrum, ie 15? to 36? TV, LCD is the way to go if what you want is something stylish and slim (at under 4 cm in depth). Image quality, contrast and saturation: Both the plasma and the latest TFT-LCD flat panel displays are capable of excellent image quality? with bright, clear, crisp images. However, plasma flat screens are more suited for home theater use of the basic liquid crystal display. The gas in a cell of the plasma display is such that there is no light leaking between adjacent cells (or pixels). This ensures that the plasma display can display the deepest blacks? consequently, a better contrast and detail in scenes from movies and television in which a lot of light and dark is contained at the same time. In comparison, the type of LCD technology? where a backlight shines through the LCD layer? means that it is difficult for them to achieve true blacks (ie true absence of light), there is always a little 'light leakage near pixels. This does not mean that LCD panel s are not suitable as TV screens, today? s use of an LCD TV with extremely high contrast plates, which are able to show deeper blacks, but the latest plasma TV is still a slight edge over LCD when it comes to contrast levels. The situation is somewhat similar when it comes to color saturation. Again, is the different between LCD and plasma, which is the reason for the difference between the two technologies in this regard, and although it is suitable for a color in an exceptional manner, but plasma - still bring to this respect - producing more accurate and vibrant colors. Viewing Angle: Plasma TV? as CRT TV counterpart - typically a better viewing angle of LCD. The viewing angle is how far you can on both sides of the screen away from the center, without a significant deterioration in picture quality? mainly due to change of color and reduce the contrast. Although recent developments in LCD technology means that this is less of a problem with some of the latest LCD TV promotion of a viewing angle from 160 to 170 degrees vertically and horizontally, but it is always best to check. The trend? especially with more convenient? is that the deterioration of image quality is more accentuated with LCD than with plasma displays. Bu-In: As with all displays-based phosphor, plasma - are vulnerable to screen bu-in, retention or screen. Screen Bu-in occurs when the image on the left too long on the screen? resulting in a spirit of buing the image on the screen. Be sure to set the brightness and contrast levels down will help reduce the risk of bu-in. While some manufacturers of plasma displays are more sensitive than others to bu-in, but in general, plasma screens are prone to suffer permanent bu-in, during the first 200 hours of use; The reason is that fresh phosphors bu more intense than it is on. Technically speaking, bu-in is the result of a damaged pixel, whose phosphors has been prematurely aged and therefore illuminates less intensely than the surrounding pixels. The presence of a static image for more than half an hour is sufficient for the temporary bu-in, bu-in on time or a ghost image, it should not be worrying, because the rule is to wash after several hours of use. Worst of all is the presentation of static should be extended, as the use of black or gray bar to display a 4:3 image in its original format on a widescreen display, which is in a permanent bu-in. After constant bu-in occurs, the damaged phosphors can not be the same light as the other phosphors around them do. In these circumstances, an LCD display can be a better choice. Distance: It seems that the pixel size and shape of an LCD panel more easily compared to the average equivalent to the plasma for the same pixel. This means that even if the distance in a distance of about twice the width, if this is below the minimum of nine meters, you are probably better off with an LCD TV. Life Time: The rare gases in the plasma panels have a life and fade over use. At the beginning of plasma television is cited half life of 20,000 hours, after which the brightness drops to half its original value. However, the latest plasma displays can be anything from 30,000 to 60,000 hours. On the other hand, have an LCD display duration of guaranteed 50,000 hours and 60,000 hours. This reduction in brightness takes place gradually over time. Well, the average size of households in the U.S. replaces their TV every 7 years. Under a conservative estimate of 30,000 hours to a technology, which represents more than 6hrs usage days - every day - for a period of 14 years! In other words, plasma and LCD screens are extremely stable and reliable. This means that the time of life should not be a problem with a technology of visualization. At the same time, keep in mind that there is no way to re-produce the gas in a plasma display or to repair? dead? Pixel in an LCD display? the only option in such circumstances, is to replace the display. Response: Some LCD panels? especially for the older generation models - a tendency to blur images, especially in fast moving scenes in film and sports. Recent advances in LCD technology means that response times are such that there is no significant difference in performance between LCD and plasma TVs in this sense. Power: The advantage goes to LCD panels as these consume less electricity. Estimates indicate that the use of LCD panels can cause about 30% energy savings for the same sized plasma screen display. Price: The price is always a big problem when it comes to choosing your TV screen. Although prices online vary considerably, but the LCD TVs are generally more expensive than plasma TVs. The main reason for this price difference is that the production for plasma technology still supports a better yield and thus an advantage of prices? especially on the big screen at the end of the market. This contrasts heavily with LCD display technology where an estimate 30 to 40 per cent of all manufactured panels will have to be because of defects, known as the 'bad-pixels'. Decision: This is a market for plasma and LCD - Plasma gives you a big screen for your dollar, deep black, but LCD does not suffer from bu-in and at the small market (less than 40 - the thumb size of the screen), LCD is your only option, let us know if you have something subtle and elegant. It 'all a matter of knowing what are the advantages and limitations of the individual in relation to your specific needs. (c) 2004/2005 All rights reserved.

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