Multiplexed display

A keyboard matrix circuit has a very similar arrangement as a multiplexed display, and has many of the same advantages.

But by arranging the pixels into a multiplexed matrix, only 1792 wires are needed; a completely practical situation.

(The same effect can occur if the display is moving with respect to the observer's point of regard.)

People with nystagmus (involuntary eye movement) are much more likely to experience the effect and may find some multiplexed displays hard to read.

It can also sometimes be provoked by chewing hard candy; this causes vibration of the user's eyes, leading to the break-up of the display.

The multiplexed nature of a display can also be revealed by observing it through a mechanical stroboscope, for example, a spinning slotted wheel.