Patent ID: 7256758

Claim:
A method of controlling an active matrix organic light emitting diode (AMOLED) display, comprising: a. providing, by a power controller, of a first power source and a second power source, each power source adapted to power at least one of (i) an anode/cathode pair of a component of the AMOLED display or (ii) a source/drain pair of a transistor; b. providing a first voltage having a predetermined polarity by the first power source; c. providing a second voltage having a predetermined polarity by the second power source; d. providing a start signal of a frame to a controller circuit operatively in communication with the power controller; e. beginning a timer upon receipt of the start signal; f. sending a first control signal by the controller circuit to the power controller upon lapse of a first predetermined time interval, the lapse being determined using the timer; g. changing by the power controller, upon receipt of the control signal, of at least one of (i) the polarity of voltage of the first power source, (ii) the polarity of voltage of the second power source, (iii) the polarity of the voltage of both the first power source and the second power source, (iv) a magnitude of the first voltage, or (v) a magnitude of the second voltage.