I've just received a few 4x40 character LCDs but it looks like I've totally overlooked it's back light requirements. From the datasheet I believe it needs a EL inverter (something I know little about).
As you can see from the picture it looks like it needs 100V @ 400Hz. Can anyone suggest an schematic to pull this off?
It does mention the DAS5V8 but google brings up nothing useful.
I managed to source all the components for the 555-circuit and got it all running. The only thing I'm finding is it's very dim. If I drop the r3 resister right down to maybe 100ohms it's barable but still dim.
Any ideas how to boot up the light on this circuit?