I'm looking for suitable GLCD, so far I have found the RX12864H, however the datasheet describes a lot of voltages and I'm bit confused.
While the VSS and VDD are clear to me, I have no clue what do the V0, XV0 and VG mean. The internet research lead me to using V0 like contrast adjustment, but I still know nothing about the XV0, and the "LCD driving voltage for common circuits at positive frame" isn't very understandable for me. The datasheet specifies the Vop for typically 10V, which for me looks like really big value for the LCD powered by 3.3V, also I can't find any min/max rating for the VG.
The full datasheet can be found here: Datasheet