Method of driving a display panel with depolarization

Method of driving a display panel which comprises:

• An array of multiple light emitters or optical valves distributed in a plurality of rows,
• 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, a power supply base electrode common to all multiple driver circuits, and an upper power supply electrode common to all multiple driver circuits;
• wherein said multiple reference electrodes are grouped in at least two groups;
• wherein each driver circuit is provided with:
• a control terminal suitable to be coupled to an address electrode of the multiple address electrodes via a select switch, a reference terminal linked to a reference electrode of the multiple reference electrodes, and a sustain capacitor mounted between said control terminal and said reference terminal;
• a control of said select switch being linked 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 the reference electrodes electrode to which the reference terminal of the least one driver circuit is linked,
• 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 linked,
• each of said emission or depolarization periods comprising to obtain the predetermined emission voltage or the predetermined depolarization voltage at the control terminal of the at least one 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 the at least one 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 the address electrode of the at least one driver circuit, 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.