1.0 General Specification
NMLCD-M12864Z-1is 2.9"128x64 graphic lcd display module ST7920 controller,fstn lcd,white led backlight,wide operating temperature,popular size.

2.0 Description
white background with 128x64 monochrome black pixels,ST7920 and ST7921 controller that is extremely common and well documented,6800 8-bit parallel interface,single led backlight with white color included can be dimmed easily with a resistor or PWM,fstn-lcd positive,wide operating temperature range and wide view angle,rohs compliant,compact size.

It's easily controlled by MCU such as 8051,PIC,AVR,ARDUINO,ARM and Raspberry Pi.It can be used in any embedded systems,industrial device,security,medical and hand-held equipment.
http://www.panadisplay.com/monochrome-lcd/monochrome-cog-cog-lcd/128x64-graphic-lcd-display-module-st7920.html