This is the cheap LCD clock I'm having a stab at

http://home.clear.net.nz/pages/joecolquitt/glasslcd.html

and a couple of sample waveforms, common and segment. I'm
still cataloguing phase relationships and the multiplexing. The
bottom picture is a grab of the display showing 12 blank blank.
Glitchy to say the least

There's a 1.5V button cell for the clock and one for the LED. 13
control lines is within cooey of a small PIC but the fly in the
ointment is having a keypad on the same port lines as the LCD
drive. This is possible with a standard alphanumeric because
the display is static between writes so data lines can double as
inputs but this would probably mess up the display on a direct-
drive LCD. The first hurdle to get over is creating those low
bipolar volatges

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