Thursday, September 27, 2007

Plasma & LCD TV

Both Plasma and LCD television sets are available in similar slim-style and are capable of similar picture performance, yet there are many significant differences between the two.

Both the technologies process the image in an entirely different manner. Plasma uses a matrix of tiny gas plasma cells that are charged by specific electric voltages to produce light and create the picture image. Where as, LCD work by entrapping liquid crystal solutions among two sheets of polarized glass, when electric current passes through it, they rotate to bring transformation in the polarization of the light passing through them in response to the applied voltage. As a result, light passes through the polarized glass to reach the face of the display. In-fact, they do not produce light but filter light generated by a backlight source to create image on the panel surface.

The screen size in Plasma sets vary from 32 inches to 63 inches whereas, in LCD sets it varies from 13 inches to 45 inches. Comparatively, viewers’ fond of wider vision can feel the experience of Plasma on LCD sets in the range of 46 inches, manufactured by I-Tech Company .

Presently, Plasma sets possess an edge over LCD’s as far as screen size is concerned but in the long run LCD’s may outshine Plasmas as persistent innovation is being carried out to upgrade LCD technology.

Plasma sets possess viewing angle up to 160 degree where as LCD’s enjoys relative advantage of wider viewing angle of up to 175 degree. I-Tech Company has slightly increased the viewing angle up to 178 degree on its latest LCD sets.

Plasma technology does have a marginal edge over LCD’s as far as screen refresh rates are concerned. Plasma exhibits refresh and manages swift movements in videos where as, LCD technology needs much up-gradation in this area. LCD TV’s possess refresh rates less than 16 ms and display a small number of visible objects. I-Tech Company offers LCD sets with refresh rates of 8ms.

Stationery images can cause burn-in or stuck pixels in Plasma sets. Moreover, they rely on phosphor to display video they are susceptible to screen burn-in and possess shorter life span. It has been usually observed that static images “burn in” create an after-image ghost which stays forever on the screen. But with the advent of advanced Plasma technology this problem does not persists anymore as it has been minimized to a considerable extent with the help of Pixel Orbitor. While on the other hand, LCD’s are not prone to burn-in and possess high standard dead pixel policy.

Plasma sets usually possess a life-span of 30,000 to 60,000 hours after this duration the image fades to half the original brightness. You can enjoy LCD for a longer duration as the sets manufactured by I-Tech Company have a life span of more than 60,000 hours.

LCD’s are lighter in weight which facilitates easy mounting and installation. They can be transported without much difficulty as they are lighter and less fragile than Plasma sets. LCD offered by I-Tech Company is extremely light and compact in size.

Both LCD and Plasma sets are designed to meet the brightness expectations of the customers but LCD will definitely get better response. I-Tech Company manufactures LCD of 500 cd/m2 for household use and 700 cd/m2 for commercial use, certainly the highest in the industry.

Plasma TV consumes more power than LCD’s. High altitude affects the performance of Plasma TV as the gas held inside each pixel is stressed which results in low performance while LCD do not suffer from any such difficulty.

With LCD’s you can enjoy the advantages of exceptional color reproduction, less power consumption, display millions of color precisely, have excess of connectivity choices, usually consist of inputs for composite video, S-video, High Definition Multimedia Interface (HDMI) and PC In. Furthermore, they can easily handle progressive scan sources and displays high definition content with ease.

While Plasma TV possess: outstanding brightness, display high contrast images with extremely vivid and sharp colors, prices are less as compared to LCD, high resolution, smooth images, progressive HDTV sources and non-HDTV sources can be displayed at their best.

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