Multiplexed display

By comparison, in [[dot-matrix display]]s, individual [[pixel]]s are located at the intersections of the matrix's "row" and "column" lines and each pixel can be individually controlled.

By comparison, in [[dot-matrix display]]s, individual [[pixel]]s 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 1024×768 ([[Extended Graphics Array|XGA]]) computer screen, 2,359,296<!-- 1024×768 * 3 color channels + 1 common return wire --> 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<!-- 1024 + 768 --> wires are needed; a completely practical situation.

Here, the savings in wiring becomes far more dramatic. For a typical 1024×768 ([[Extended Graphics Array|XGA]]) computer screen, 2,359,297<!-- 1024×768 * 3 color channels + 1 common return wire --> 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 3,328<!-- 1024 + (768 × 3 color channels) --> wires are needed; a more 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 display]]s provide a storage element at each pixel so that the pixel continues to display the correct state even when not being actively driven.

Pixel-oriented displays may drive a single pixel at a time or an entire row or column of pixels simultaneously. [[Active-matrix liquid crystal display]]s provide a storage element at each pixel so that the pixel continues to display the correct state even when not being actively driven.