Method and device for driving organic light emitting diode display device

A method for driving an organic light emitting diode display device, wherein the organic light emitting diode display device comprises a cathode, and a positive voltage of a power source and a negative voltage of the power source are inputted to the organic light emitting diode display device, the method comprises:

• acquiring an equivalent voltage of pixels between the cathode and an input of the negative voltage of the power source according to a video signal;
• calculating a current voltage of a gate of a driving thin film transistor in a light emitting stage according to the equivalent voltage;
• and
• controlling a voltage value of the positive voltage of the power source according to the current voltage of the gate of the driving thin film transistor, so as to reduce power consumption of the organic light emitting diode display device.

A device for driving an organic light emitting diode display device, wherein the organic light emitting diode display device comprises a cathode, and a positive voltage of a power source and a negative voltage of the power source are inputted to the organic light emitting diode display device, the device comprises:

• a first voltage acquiring module configured to acquire an equivalent voltage of pixels between the cathode and an input of the negative voltage of the power source according to a video signal;
• a second voltage acquiring module configured to calculate a current voltage of a gate of a driving thin film transistor in a light emitting stage according to the equivalent voltage;
• and
• a control module configured to control a voltage value of the positive voltage of the power source according to the current voltage of the gate of the driving thin film transistor, so as to reduce power consumption of the organic light emitting diode display device.