What's the Difference between Plasma and LCD TECHNOLOGY?

Plasma and LCD panels may look similar, but the flat screen and thin profile is where the similarities end. Plasma screens, as its name suggests, uses a matrix of tiny gas plasma cells charged by precise electrical voltages to create a picture. LCD screens (liquid crystal display) are in layman's terms sandwiches made up of liquid crystal pushed in the space between two glass plates. Images are created by varying the amount of electrical charge applied to the crystals.

Apart from better contrast due to its ability to show deeper blacks, plasma screens typically have better viewing angles than LCD. Viewing angles are how far you can sit on either side of a screen before the picture's quality is affected. You tend to see some brightness and colour shift when you're on too far of an angle with LCDs, while a plasma's picture remains fairly solid. This is steadily changing, with more and more LCDs entering the market with viewing angles equal to some plasmas. Plasmas can also produce a brighter colour, once again due to light leakage on an LCD affecting its colour saturation.

Plasma pundits will also tell you that some LCD screens have a tendency to blur images, particularly during fast-moving scenes in movies or in sports. While that was true for older generation LCD screens, newer models have improved significantly — so much so that the differences in performance between LCDs and plasmas in this regard is almost negligible. (While the pixel response time, measured in milliseconds (ms), can give you some indication of an LCD's performance with fast-moving scenes, it's not always reliable.)

Traditionally, the biggest advantage plasmas have had over their LCD cousins is price, particularly in the large screen end of the market. Depending on the resolution, plasma is still able to beat most equivalently-priced LCD screens. Plasmas being sold in Australia generally run between 42 and 63 inches wide, with the cheapest 1024x768 standard-definition 42-inch selling for approximately AU$1700. However, you can also find some 32-inch plasmas on the market, and they can be found for under AU$1000, but we think LCDs offer a better deal at this size.

Picture Quality

As the advantages show, plasma technology has the better picture quality in normal to low room lighting conditions and are better in 4 out of 5 picture quality categories. Plasma technology will almost without exception triumph during night time viewing. LCD televisions are great for sunroom/breakfast room type environments. Also, LCD monitors are generally better for public display such as airport signage and retail store signage due to the bright room light environment.

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Functional Considerations


COMPUTER USE

LCD monitors display static images from computer or VGA sources extremely well, with full color detail, no flicker, and no screen burn-in. Moreover, the number of pixels per square inch on an LCD display is typically higher than other display technologies, so LCD monitors are especially good at displaying large amounts of data - like you would find on an Excel spreadsheet for example - with exceptional clarity and precision. LCDs are also available in many more sizes, especially the smaller sizes most often used for a computer display.

Plasma technology has increased anti burn in tactics as well as computer and static signal handling. There are still issues with each depending very much on the model and manufacturer. For example, 720p plasma televisions do not handle a computer input well and product a very jaggy image on plasma's larger sizes.


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