by DarrenR on Fri Dec 04, 2009 12:37 pm
Hi Martin,
The difference is due to the circuitry driving the backlight. ADL2 has an external inverter, while the SDL has a builtin inverter.
You may also see a slight difference due to manufacturing tolerances, but they are all the same backlight and displays.
Cheers,
Darren Reynolds
MoTeC Research Centre - Melbourne, Australia.