Joe P. Farr wrote:
> An advantage of pulse drive is that the human eye behaves as a
> partially integrating and partially peak-reading photometer. As a
> result, the eye perceives rapidly pulsed light somewhere between the
> peak and the average brightness. This means that a low-duty-cycle,
> high-intensity pulse of light looks brighter than a DC signal equal
> to the average of the pulsed signal. An advantage of multiplexed
> operation, therefore, is an improvement in display intensity for a
> given average power consumption.

There is some of that, but that has nothing to do with current saving due t=
o
only one LED being on at a time, which was the original assertion:

>> Depending on how your configure your LEDs, one advantage of
>> multiplexing could be a power saving as only one LED's on at a time

If I remember right, the brighter pulse effect only happens at frequencies
that are obvious to the observer, and probably annoying in a real display.


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