Multiplexed display

Article summary

used in a videocassette recorder Multiplexed displays are electronic display devices where the entire display is not driven at one time. Instead, sub-units of the display (typically, rows or columns for a dot matrix display or individual characters for a character oriented display, occasionally individual display elements) are multiplexed, that is, driven one at a time, but the high switching frequency and the persistence of vision combine to make the viewer believe the entire display is continuously active. A multiplexed display has several advantages compared to a non-multiplexed display: * fewer wires (often, far fewer wires) are needed * simpler driving electronics can be used * both lead to reduced cost * reduced power consumption Multiplexed displays can be divided into two broad categories: # character-oriented displays # pixel-oriented displays

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