PDP energy recovery apparatus and method and high speed addressing method using the same
AssigneeLG Electronics Inc.
InventorJeong Choi
Life of this patent
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Abstract
A PDP energy recovery apparatus and method controls the time point of charging and discharging energy to a plasma display panel (PDP) optimally and performs a high speed addressing. The PDP energy recovery apparatus includes a PDP, a driving integrated circuit unit for driving the PDP; and a PDP energy recovery circuit units for supplying energy to the PDP, charging an electric charge in the PDP at the time point when the electric charge discharged from the PDP is outputted the smallest, discharging the electric charge charged in the PDP, to thereby quicken the operating speed of the PDP.
Claims23
A method comprising:
- supplying drive power to each of a plurality of address electrode lines of a plasma display panel;
- and
- recovering a charged voltage from the plurality of address electrode lines, the amount of recovered charged voltage varying according to a number of cells to be switched on the plurality of address electrode lines.
A data drive method for a plasma display panel comprising:
- discharging a capacitance load on each of a plurality of address electrode lines associated with the plasma display panel thereby charging voltage on an external capacitor of an energy recovery unit;
- charging the capacitance load on each of the plurality of address electrode lines with the voltage charged on the external capacitor;
- maintaining a level of the voltage charging the capacitance load;
- and
- repeating the discharging of the capacitance load, wherein the discharging and charging of the capacitance load is executed by a continuous resonant waveform of the energy recovery circuit.
A plasma display apparatus comprising:
- an energy recovery circuit having an external capacitor and a switching circuit, the switching circuit to discharge a capacitance load on each of a plurality of address electrode lines associated with a plasma display panel thereby charging voltage on the external capacitor, the switching circuit further charging the capacitance load on each of the plurality of address electrode lines with the voltage charged on the external capacitor, wherein the discharging and charging of the capacitance load is executed by a continuous resonant waveform of the energy recovery circuit.
Dependencies are inferred from the claim text.