FWIW, I am using an LED-backlit LCD.  And on many of my PIC projects,
I do overdrive the LCD with a varying duty-cycle pulse.  In this case
I am trying to avoid using a PIC or other chip.



Jinx wrote:
>
> > Actually there are quite a few panels out these days that use EL
> > for the backlight, this sort of technology IS very sensitive to power
> > supply "nastiness". TTYL
>
> Noise or ripple going through the inverter could be pretty destructive
>
> But is the brightness of EL externally adjustable ? There's some
> internal compensation for ageing but I thought EL inverters normally
> have a fixed output voltage. But I could be wrong
>
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