Wayne,
I've been thinking of the negative voltage that your LCD would like to have. You might be getting acceptable results using 5VDC+, but if you're not satisfied with the brightness/contrast, I totally forgot that you can have -12VDC on a PC PSU. That's still safely within the operating specs of the LCD.
http://pcsupport.about.com/od/inside...in-12v-psu.htm
Robert
Bookmarks