On Sun, 5 Jul 1998, Paul B. Webster VK2BZC wrote:

> Peter L. Peres wrote:
>
> > You do not need any chip in-between but it is good to start out
> > thinking that any deviation from 50% duty cycle on the backplane of a
> > standard LCD display will slowly murder the LCD, reducing its lifetime
> > to under a few months in some cases, and keep thinking about that all
> > the time while you write the code. 2% off (i.e. 0.1 Volts DC across
> > the LCD) is already VERY bad.
>
>   Or just cheat, and put 100nF (SMD) chip ceramics in series with all
> the segment leads just in case!  Much cheaper than replacing LCDs!
> --

As a quick hack it would work, but adding 12-odd chip capacitors to a
design that has a part count of 5 or 6 without is not my idea of a
production-ripe unit. Maybe your country is richer ;)

Peter