Voltage and the voltage of the five tone effect

VGH: Vgatehigh, is a high-level gate potential, which is a voltage level to open gate; Graphic LCD Display

VGL: Vgatelow, gate level is low, that is, close gate voltage level, the voltage at the second driving force driving the third order, this voltage is used to generate Vgoffl;

VgoffL: Vgateofflow, is the gate voltage of the low-level closed (use the driver in the third-order by VGL get through a voltage conversion circuit);

VgoffH: Vgateoffhigh, a gate turn-off voltage of the high level (in the third-order driver used to eliminate the next stage gate closed by the storage capacitor (CS ON GATE) causing the voltage value is changed), the value of its basic can be considered as Vgoffl + Vcom; 144x32 lcd

As VCOML and VCOMH, I would like to not have to explain, we all should know it.
These are some personal opinion, I do not know is not right, do not wish to mislead you go.
We can know that some IC data above refers only to VGH and VGL, it is because, Fengyun IC supports only second driver, some IC data at VGH, VGL, VGOFFH, VGOFFL, have, it is because this IC supports second and third driving.
VDDD is a digital circuit voltage; VDDG, VEEG second order-driven GATE switch level; VCOM Needless to say, the liquid crystal deflection reference voltage; VDDA on the PCB will be separated by divider circuit voltage of 10 to 14 group, As the output of the DAC IC VGMA internal reference voltage divider circuit through the PCB, produce a plurality of reference voltages, can reduce the voltage divider circuit inside the IC, and money.