General Specification
NMLCD-M160128A-1 is 160x128 Graphic LCD module, RoHS Compliant, Yellow/Green LED Backlight, STN Positive Yellow/Green, Transflective, -20°C to +70°C, 6:00 viewing angle. Negative Voltage Generator, Temperature Compensation.
http://www.panadisplay.com/monochrome-lcd/monochrome-cog-cog-lcd/160x128-transflective-graphic-lcd-display.html