Pixel-oriented Displays
By comparison, in dot matrix displays, individual pixels are located at the intersections of the matrix's "row" and "column" lines and each pixel can be individually controlled.
Here, the savings in wiring becomes far more dramatic. For a typical 1024x768 (XGA) computer screen, 786,433 wires would be needed for non-multiplexed control. That many wires would be completely impractical. But by arranging the pixels into a multiplexed matrix, only 1792 wires are needed; a completely practical situation.
Pixel-oriented displays may drive a single pixel at a time or an entire row or column of pixels simultaneously. Active-matrix liquid crystal displays provide a storage element at each pixel so that the pixel continues to display the correct state even when not being actively driven.
Read more about this topic: Multiplexed Display
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—Sylvia Pankhurst (1882–1960)