100hz LCD tv or 100hz Plasma ?

A standard PAL television will refresh the picture at a frequency of 50Hz – 50 Frames Per Second (FPS). The Frames Per Second are the number of frames needed to create the illusion of movement. Our eyes are at times sensitive to this frequency depending on the speed of the image, the level of darkness, and the level of brightness so you will sometimes notice the picture flicker on a 50Hz TV. Also the larger the screen is the more noticeable the flicker is.

A 100hz (100 FPS) television operates at double the Frames Per Second by creating a replica of each frame and inserting it after the one before. On a 50Hz Cathode Ray Television (CRT) because the picture was produced by an electron scan there was a visible flicker that could be detected by the human eye. By doubling the scan frequency to 100Hz and inserting a replica frame this effect was eliminated as far the eye perceived it. The effect of this is to significantly reduce the flicker.

LCD and Plasma televisions don’t produce flickering because they don’t produce the picture with an electron scan. However LCD TV’s still benefit from 100Hz because advanced digital circuitry creates an extra frame or middle image. This is done by the TV inventing an extra frame using complex interpolation and motion compensation calculations to work out what the extra fields and frames look like rather than inserting a replica frame. (e.g.: the second frame is not the same as the first frame).

However even at 100Hz picture still does not produce a completely smooth picture especially with fast motion images. Some television manufactures attempt to reduce this further by using digital picture processing. In reality there is still some blurring on fast moving images but the benefits are clearer and better-defined surfaces, sharper pictures, and smoother movement than you get from 50Hz LCD screens.

For example if a football moves ten pixels from right to left between frames one, two and three, the 100Hz television will digitally generate two additional frames between one and two, and two and three, in which the ball will move five pixels. This results in five frames in which football moves a total of ten pixels i.e. the original frames one, two and three plus the digitally created frames inserted between one and two, and between two and three. The effect of this is that the eye sees an image that moves more smoothly than before.

The benefit is that 100Hz televisions have a clear benefit of ending a lot of the ghosting effects sometimes seen in LCD TV’s. The ghosting effect caused by the new image being displayed before the previous has faded away. Click the following link for more information and to Save Pounds on Lcd and Plamsa Tv's at Low Prices

Sony has just launched a 200Hz range which digitally inserts three additional frames between the original 50Hz frames. The effect of this is that fast moving sequences are delivered with a smoother, more fluid and sharper picture than 50Hz or even 100Hz TV’s.

Most leading manufactures have now got 100Hz LCD and Plasma televisions including Panasonic, JVC, Samsung, Toshiba, Sony, Philips, LG, Pioneer, and Hitachi. For further advice and discount pricing Buy LCD or Plasma at Discount Prices

Studies have shown that 100Hz televisions can help prevent seizures in patients with photosensitive epilepsies when viewing television or playing video games.