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Wednesday, July 16, 2008

Plasma TV Burn-In

With the same image being maintained on the screen for a long period of time, especially true when you go on playing the same game for hours or watching the same TV channel, the still image on the screen of your Plasma TV creates a constant current flow in each of the pixels, which ages the phosphor wall of the pixels more in that area. The TV screen would have, by that time, lost the capability to produce true colors owing to the weakening of the phosphor wall. The condition of the burn-in effect will be such that, a weak shade of the picture will continue to be visible on the screen. Burn-in causes hindrance in displaying other images, as and when the affected areas of the screen want a change in pixel's color.

To avoid burn-in you should avoid display of static pictures on your TV screen for long periods of time. Modern TV designs have been able to add functions which would automatically avoid burn-in to a certain extent. However, many of us still have older models, where we need to take precautions to prevent burn-in from taking place. The best way to avoid burn-in is not to put your TV on pause for a long time while you leave your TV set switched on, watch diversified content and properly calibrate your TV.

The modern plasma TVs use anti-burn-in features like pixel orbiter, which keeps on shifting the image in order to reduce the effect of a possible burn-in. When burn-in occurs, it leaves a shadow image on the screen, which may be of a logo, computer icons, Internet browser frames, or an entire image which was left on for longer hours. This makes the watching unpleasant so you want to do your best to avoid getting burn-in on your plasma TV.

Very briefly, the screen in a plasma TV is made up of array of pixels, and each individual pixel contains a gaseous substance. The pixels receive charge from a set of electrodes producing photons, giving away ultraviolet light. The light particles generated fall on the pixel wall which is coated with phosphor. When you view the same channel for a long time, or play the same game on your Plasma TV for long hours, the phosphor on the pixel wall may age more in certain areas and start to produce lights of less intensity. At times, with continued lights from the phosphor, the screen is liable to get burn-in, leaving a shadow of an image on the screen. To avoid plasma TV burn-in, you will have to use your plasma TV in a balanced way and avoid leaving the same TV channel or playing the same game for many hours in a row.

This is one of the aspects that you would need to find out when buying a plasma TV. You must make sure that the features do mention about protection against burn-in when you make a selection for the plasma TV that you want or buy a plasma TV model from a newer generation because those are less susceptible to get burn-in. While handling your plasma TV, you must remember that it is prone to burn-in especially during the first 200 hours of operation. This is because the phosphors are fresh at the start, and intense burning takes place when they are ignited as you switch on your Plasma TV. Because of this, the first thing you should do when buying a plasma TV is to properly calibrate it, reducing its contrast and brightness settings. This not only makes it less susceptible to burn-in but it also increases the lifespan and gives you more accurate colors and a better overall picture quality.






1 Comments:

Blogger Artstudio Sri Lanka said...

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August 20, 2008 at 8:05 AM  

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