Patent ID: 7652639
Filing Date: 2010-01-26
Classification: G09G

Abstract:
1. A method for driving a plasma display panel in which a capacitance load is formed by at least two electrodes during a reset period of a subfield comprising the reset period, an address period, and a sustain period, comprising: biasing a second electrode at a voltage; changing a voltage at a first electrode of the capacitance load by a first voltage; floating the first electrode for a period of time; and changing the voltage at the first electrode by a second voltage, wherein the second voltage comprises the first voltage plus an amount of a voltage drift of the first electrode caused by floating the first electrode for the period of time, wherein an operation that the first electrode is floated and the voltage at the first electrode is changed by the second voltage is repeated for a number of times during the reset period of a single subfield to produce a stepped rising or falling ramp waveform, and wherein the first electrode is not floated when the voltage at the first electrode is changed by the first voltage and when the voltage at the first electrode is changed by the second voltage.