Here is a project built to provide a DC power supply with a GLCD interface:
This power supply monitor is intended to measure the voltage and current of a DC power supply, and continuously display these values on a 128X64 pixel LED backlit GLCD display.
Ezflyr built it for his aircraft ground power supply, but it could be used with any power supply that outputs voltages below 24V. It uses a onboard DC-DC converter to power the board, while the PIC16F876A uC provides the brains for the device. Once he tests it, schematic and PCB source files will be made available.
Via the forum.