Driving circuit for a plasma display panel with discharge current compensation in a sustain period

A driving method for driving a plasma display unit of a plasma display panel using a driving circuit, the plasma display unit comprising two electrodes with an ionized gas between the two electrodes, the driving circuit driving the ionized gas back and forth to cause the plasma N display unit to emit light, the driving circuit comprising a rating source receiver and a first current source generator, the rating source receiver being capable of receiving and supplying a rating current, the driving method comprising:

• charging the first current source generator with the rating source receiver to cause the first current source generator to generate a compensation current, the compensation current being larger than the rating current;
• using the rating current source to generate a first electric potential difference between the two electrodes of the plasma display unit so that the ionized gas in the plasma display unit starts to discharge;
• and
• while the ionized gas of the plasma display unit is discharging, using the rating source receiver and the first current source generator in parallel to supply the plasma display unit with both the compensation current and the rating current so as to prevent an electric potential difference drop caused by the rating current being insufficient to supply the discharging of the ionized gas.

A driving circuit for driving a plasma display unit of a plasma display panel, the plasma display unit comprising two electrodes with ionized gas between the two electrodes, the driving circuit driving the ionized gas back and forth between the two electrodes to cause the plasma display unit to emit light, the driving circuit comprising:

• a rating source receiver for receiving and supplying a rating current;
• a first driving unit electrically connected to the rating current receiver and a first electrode of the two electrodes of the plasma display unit, the first driving unit being capable of building a first electric potential difference between the two electrodes of the plasma display unit to cause the ionized gas of the plasma display unit to discharge between the two electrodes;
• a first current source generator electrically connected to the first electrode of the plasma display unit, the first current source generator capable of supplying a first compensation current;
• and
• a controller electrically connected to the first driving unit and the first current source generator, the controller capable of selectively placing the first driving unit and the first current source generator in parallel to selectively supply the plasma display unit with both the rating current and the first compensation current so as to prevent an electric potential difference drop caused by the rating current being insufficient to supply discharging of the ionized gas.

A driving circuit for driving a plasma display unit of a plasma display panel, the plasma display unit comprising two electrodes with ionized gas between the two electrodes, the driving circuit driving the ionized gas back and forth between the two electrodes to cause the plasma display unit to emit light, the driving circuit comprising:

• a rating source receiver capable of receiving and supplying a rating current;
• a first driving unit electrically connected to the rating current receiver and a first electrode of the two electrodes of the plasma display unit, the first driving unit comprising an energy storing current source, the energy storing current source capable of supplying a compensation current and generating a first electric potential difference between the two electrodes of the plasma display unit to cause the ionized gas of the plasma display unit to discharge between the two electrodes;
• and
• a controller electrically connected to the first driving unit and the rating current receiver, the controller being capable of selectively causing the rating current receiver to charge the energy storing current source to generate the compensation current;
• wherein when the ionized gas of the plasma display unit discharges, the compensation current is used to keep the electric potential difference between the two electrodes stable.

A driving circuit for driving a plasma display unit of a plasma display panel, the plasma display unit comprising two electrodes with ionized gas between the two electrodes, the driving circuit driving the ionized gas between the two electrodes back and forth to cause the plasma display unit to emit light, the driving circuit comprising:

• two driving units respectively electrically connected to the two electrodes of the plasma display unit to drive the ionized gas back and forth between the two electrodes so that the plasma display unit emits light;
• a first current source generator electrically connected to a first electrode of the plasma display unit;
• and
• a controller electrically connected to the two driving units and the first current source generator to control the operation of the two driving units and the first current source generator;
• wherein before the plasma display unit discharges, the controller builds a first electric potential difference between the two electrodes of the plasma display unit using the two driving units so that the ionized gas of the plasma display unit starts to discharge between the two electrodes, and when the ionized gas of the plasma display unit discharges, the controller provides a compensation current to the first electrode of the plasma display unit using the first current source so as to prevent an electric potential difference drop caused by the discharging of the ionized gas.

A driving circuit for driving a plasma display unit of a plasma display panel, the plasma display unit comprising two electrodes with ionized gas between the two electrodes, the driving circuit driving the ionized gas between the two electrodes back and forth to cause the plasma display unit to emit light, the driving circuit comprising:

• two driving units respectively electrically connected to the two electrodes of the plasma display unit to drive the ionized gas back and forth between the two electrodes so that the plasma display unit emits light, each of the two driving units comprising a current source electrically connected to an electrode of the plasma display unit;
• and
• a controller electrically connected to the two driving units and the two current sources to control the operation of the two driving units and the two current sources;
• wherein before the plasma display unit discharges, the controller builds a first electric potential difference between the two electrodes of the plasma display unit using the two driving units so that the ionized gas of the plasma display unit starts to discharge between the two electrodes, and when the ionized gas of the plasma display unit discharges, the controller provides a compensation current to a first electrode of the plasma display unit using the current source of one of the two driving units so as to prevent an electric potential difference drop caused by the discharging of the ionized gas.