unbranded led matrix experiments

While in Singapore I picked up an unbranded 16x16 green LED matrix with P-5162 silk screened on the PCB. It has 3x 2mm pitch pin header connectors, each with 16 pins labelled G1-G16, C1-C16, R1-R16.

From my quick experimenting, it looks like all of the G1-G16 lines are not interconnected but only one needs to be grounded for the whole display to work. The C pins control the column selection (active high) and the R pins control the rows (active low). Also, it appears that the display does not have inline resistors, so if you hook it up without a resistor you will almost certainly blow the LEDs.

I couldn't find any further information on the net about this, so hopefully this will help someone who comes across these displays at a later date.