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Photonics Dictionary

active-matrix liquid crystal display (AM-LCD)

When applied to LCD grids, the active matrix is a means of supplying power to pixels by use of a transistor and capacitor. The transistor functions with leads in operation with its respective row and column. The capacitor ensures that charge may not be lost during a refresh cycle. Variation of the voltage permits a grey scale with values of 0-256 for a given pixel.
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