I've got a batch of Optrex LCD's DMC16230 NYJ-LY-D. The variant code is
different from the LCD I've been using for development. That code is
NY-LY-B. Nowhere on the 3 Optrex web pages can I find a list explaining
the variants. And my emails remain unanswered.
I know that this tells me something about the backlight and the display
characteristics. Anybody got a list that explains it? Here is my
problems:
On the new batch, I had to drive Vee to about -2.5V to get the display
to show something. My development LCD worked OK at 0V. I only got a
positive 9V available for this project. How do I generate this -2.5V
(variable)?
(Don't ask me how much I was swearing when I did the first prototype,
hehe)

Do I need an inverter for the backlight?. Or do somebody have a simple
circuit to drive the backlight?

Thanks
Quentin

--
http://www.piclist.com hint: To leave the PICList
mailto:piclist-unsubscribe-request@mitvma.mit.edu