LYCOS RETRIEVER 
Plasma Display: Pixels
built 628 days ago
Plasma television technology is different from the technology used in other display systems in that red, green and blue lights are created in every pixel, reducing the need for space. Charged electrodes between glass panels cause tiny pockets of inert gas to change a state of plasma. This process causes UV light to be produced, which in turn reacts with the red, green, and blue phosphors in each pixel to produce visible light.
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In plasma display panels the light of each picture element is emitted from a plasma created by an electric discharge. The dimensions of the discharge are in the 100 micro-meters range at a pressure of a few hundred torrs, and the voltage applied between electrodes is in the 100-200 V range. In the simplest configuration, plasma display panels consist of two glass plates, each with parallel electrodes deposited on their surfaces. The plates are sealed together with their electrodes at right angles, and the gap between the plates is filled with a rare gas mixture. Each pixel at the intersection of a line and a column electrode can be illuminated independently when a voltage pulse is applied between the two electrodes. The voltage pulse leads to the breakdown of the gas and to the formation of a weakly ionized plasma which emits visible or UV light.
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A plasma display is a computer video display in which each pixel on the screen is illuminated by a tiny bit of plasma or charged gas, somewhat like a tiny neon light. Plasma displays are thinner than cathode ray tube (CRT) displays and brighter than liquid crystal displays (LCD). Plasma displays are sometimes marketed as "thin-panel" displays and can be used to display either analog video signals or display modes digital computer input.
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Unlike traditional displays, where the image is scanned across the screen, in plasma televisions all pixels are "lit" at once. Having no electron beam, back lighting or light polarization, the image is inherently sharper and brighter. Perfect from edge to edge.
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