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When a standard CRT creates an image, a beam of electrons moves across the back of the screen, scanning an image on to phosphors. These leaves scan lines in the images, which can be visible, especially on older televisions. Plasma screen televisions do not rely on phosphors or electron beams. Plasma screen televisions have transistor electrodes for every single pixel on the screen. These transistors eliminate the presence of scan lines, creating higher picture quality.
|Jennifer Mathes, Ph.D.|