Patent ID: 8659525

Claim:
Method of driving a display panel which comprises; an array of multiple light emitters or optical valves distributed in a plurality of rows and columns, an active matrix comprising an array of multiple address electrodes for voltage-mode signal addressing, an array of multiple select electrodes, an array of multiple reference electrodes, an array of multiple driver circuits suitable for controlling each of said emitters or valves and each provided with a control terminal suitable to be coupled to an address electrode via a select switch, a power supply base electrode common to all multiple driver circuits, and an upper power supply electrode common to all said light emitters or optical valves, a control of said select switch being coupled to a select electrode of the multiple select electrodes, said method comprising: emission periods during which a predetermined emission voltage, which presents a first polarity, is applied and sustained at the control terminal of at least one driver circuit of said panel, and a reference emission voltage is applied to a reference electrode to which a reference terminal of the at least one driver circuit is coupled, and depolarization periods during which a predetermined depolarization voltage, which presents a second polarity, opposite to the first polarity, is applied and sustained at the control terminal of the at least one driver circuit of said panel, and a reference depolarization voltage is applied to the reference electrode to which the reference terminal of the at least one driver circuit is coupled, each of said emission or depolarization periods comprising, to obtain the predetermined emission voltage or depolarization voltage at the control terminal of each driver circuit, an addressing step during which a select signal is applied to the control of the select switch which couples the control terminal of this driver circuit to the address electrode, and an address signal, which is adapted to obtain said predetermined depolarization voltage or said predetermined emission voltage at said control terminal, is applied to this address electrode, wherein: said reference depolarization voltage is different from said reference emission voltage, said reference emission voltage and said reference depolarization voltage are chosen such that said address signal presents the same polarity regardless of said emission or depolarization period.