Plasma and LCDs are flat screen televisions that emit radiation. With the increasing knowledge about the harmful effects of radiation, such as spontaneous mutation of the DNA, it is important to understand the form and level of radiation associated with each device.
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The radiation emitted from the plasma television is ultraviolet radiation. The ultraviolet radiation wavelengths are approximately 40 to 400 nanometres. The ultraviolet radiation emitted from the plasma television, however, remains contained within the pixels and is therefore not harmful to the observer.
The type of radiation emitted from an LCD television is infrared radiation. The wavelengths are approximately one meter to one centimetre long. The infrared radiation has a low frequency and is not harmful to the observer.
The plasma television is associated with a higher frequency radiation than the LCD television. However, since the ultraviolet radiation does not penetrate the exterior of the screen, both the plasma and the LCD televisions are safe and do not emit a large amount of radiation.
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