US 2003/0193454 A1 · Apparatus and method for driving a plasma display panel

Abstract

An apparatus for driving a plasma display panel includes a first driver and a second driver and a first power supplier and a second power supplier for generating sustain discharge pulses having no negative (−) level. The first driver includes a first capacitor charged to a first voltage and is coupled to a power source for supplying a voltage VS and a ground voltage. The first driver, coupled to one terminal of a panel capacitor, operates to alternately apply double the voltage Vs formed by the power source and the first capacitor and the ground voltage to the one terminal of the panel capacitor. The second power supplier, coupled to the power source and the ground voltage, includes a second capacitor charged to Vs. The second driver coupled to the other terminal of the panel capacitor operates to alternately apply double the voltage Vs formed by the power source and the second capacitor and the ground voltage to the other terminal of the panel capacitor. Here, one of the first driver and the second driver applies the ground voltage to the panel capacitor, while the other applies double the voltage Vs to the panel capacitor.

Claims20

Dependent claims

An apparatus for driving a plasma display panel that includes a plurality of address electrodes, a plurality of scan electrodes and sustain electrodes alternately arranged in pairs, and a panel capacitor formed among the address electrode, scan electrode and the sustain electrode, the apparatus comprising:

a first driver including a first switch and a second switch coupled in parallel to one terminal of the panel capacitor;
and
a first power supplier including a third switch and a fourth switch coupled in series between a first power source for supplying a first voltage and a second power source for supplying a second voltage, and having a contact thereof coupled to the second switch, a first diode coupled between the first power source and the first switch, and a first capacitor coupled between a contact between the first diode and the first switch and a contact between the third switch and the fourth switch.

A method for driving a plasma display panel that includes a plurality of address electrodes, a plurality of scan electrodes and sustain electrodes alternately arranged in pairs, and a panel capacitor formed among the address electrode, the scan electrode and the sustain electrode, the method comprising steps of:

(a) storing energy in a first inductor coupled to one terminal of the panel capacitor and at least one second inductor coupled to the other terminal of the panel capacitor, while the one terminal of the panel capacitor is sustained at a level of a summation of the first voltage and the second voltage and the other terminal of the panel capacitor is sustained at a third voltage;
(b) applying the third voltage to the one terminal of the panel capacitor and the summation of the first voltage and the second voltage to the other terminal of the panel capacitor using the energy stored in the first and second inductors;
and
(c) sustaining the other terminal of the panel capacitor at the summation of the first and second voltages, and recovering the energy stored in the first inductor and the second inductor through a first capacitor coupled to the other terminal of the panel capacitor and charged to the second voltage and a first power source for supplying the first voltage.

1 more element

Dependencies are inferred from the claim text.

Apparatus and method for driving a plasma display panel

Life of this patent

Apparatus and method for driving a plasma display panel

Life of this patent

Abstract

Claims20