2014年1月20日星期一

Buy LCD or Plasma ?

For a flat-panel TV without regular contact with ordinary consumers, prior to purchase flat-panel TV will have a question: " is to buy an LCD TV or Plasma TV is good and what difference does it both ? ? "

From now on, LCD TVs and plasma TVs are the mainstay products in the field of flat-panel TVs , both have their own strengths , competing with each other , have their own space for development , especially with the development of flat panel technology , plasma Resolution reach high standards, bigger and expensive LCD TV , motion picture tailing serious problems have been overcome , the difference is narrowing.

A technical comparison

Of course, from a technical point of view , there are still some differences between the two . Such as high-definition LCD TV image , body thinner, more stylish and beautiful ; Tsingtek 128x64 lcd display plasma in brightness, color , layering , and so has certain advantages. Here we were to look at the technical characteristics of both understanding :

LCD technology principle: a liquid crystal projection display (Liquid Crystal Display, LCD) LCD is a rearward light-emitting fluorescent tubes , then through a set of lenses and turbot backlight module , the light is uniformly transmitted to the front , in accordance with the received video signal , the liquid crystal liquid crystal molecules within the pixel layer of the glass should be arranged relative to which the light is deflected or barrier to be determined .

Plasma Technical principle: the light-emitting principle of plasma display (Plasma Display Panel) PDP is to inject an inert gas or mercury gas in the glass tube , using a voltage mode , the gas generating a plasma effect , emit ultraviolet light, the individual RGB three excitation type fluorescent body have different primary colors visible by using the length of time to generate the excitation of different brightness.

2 , the dynamic contrast resolution

During the discussion , such as whether to buy an LCD TV or plasma TV, a dynamic definition of a contrast is also very important items. General speaking , the dynamic definition refers to the moving image during playback screen resolution , sharpness, dynamic screen presence embodied in the "tail " , the impact of presence and overlapping . This depends mainly on the TV itself, the response rate, response speed should be noted that this concept is generally concerned for LCD TVs .

LCD TVs currently on the market , the response time is generally 4-8 ms encountered rapid screen ( fast motion such as soccer , racing, etc. ) , it will produce smearing . However, with the advent of 100Hz/120Hz even 200Hz/240Hz multiplier technology, smearing improved, but limited by the working principle , trailing difficult to eradicate the problem . For plasma TV , the response speed of up to 2-3 microseconds Tsingtek low temperature 240x128 lcd, 1-3 microseconds with traditional CRT flat , beyond the scope of the human eye can recognize completely negligible .

In LCD and plasma performance synchronous upgrade stage, we still have to choose according to their needs , after all, is the best fit . If you are a hardcore amateur sporting events , or to vote for a big plate plasma care of yourself aesthetic movement concept, but also pay attention to their energy problems , after all, is the long-term benefits of energy-saving , energy-saving recommendations must purchase a plasma . If the pursuit of fashion and aesthetic quality , it can be carefully selected in numerous boutique in LCD .

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