That is interesting, but a numeric LED display only flickers if you choose to use PWM drivers. LEDs might have met NASA's 1/1000th of a second requirement in a simpler way than nixie tubes. Not as nifty for sure.
I don't know how fast they can switch on and off though, for the purposes of something like the above. Don't particularly trust the internet on this one because switching speed isn't really the diode part (which would be very fast), but rather the emitted light...which I assume lags a bit at "off".
I don't know how fast they can switch on and off though, for the purposes of something like the above. Don't particularly trust the internet on this one because switching speed isn't really the diode part (which would be very fast), but rather the emitted light...which I assume lags a bit at "off".