Method and apparatus for driving plasma display panel
AssigneeLG Electronics Inc.
InventorsSang Jin Yoon, Eung Chul Park, Bong Koo Kang, Jung Gwan Han
Life of this patent
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Abstract
The present invention relates to a method and apparatus for driving a plasma display panel that can be driven at a low voltage and prevent undesired discharge from being generated under high temperature environment.
Claims44
A method for driving a plasma display panel having an upper plate on which a scan electrode and a sustain electrode are formed, and a lower plate on which an address electrode is formed, comprising:
- applying a first initialization signal to the scan electrode and a second initialization signal to the sustain electrode during an initialization period;
- applying a scan signal to the scan electrode, and a data signal to the address electrode during an address period;
- and
- applying sustain signals to the scan electrode and the sustain electrode during a sustain period,
- wherein voltages of the first and the second initialization signal increase gradually during first portion of the initialization period, and a voltage of the first initialization signal decreases gradually from a first voltage to a second voltage during a second portion of the initialization period and a voltage of the second initialization signal maintains a third voltage during the second portion of the initialization period, and
- wherein the scan signal fails from a scan bias voltage to a scan voltage during the address period and a first voltage is greater than the scan bias voltage.
A method for driving a plasma display panel having an upper plate on which a scan electrode and a sustain electrode are formed on, and a lower plate on which an address electrode is formed on, the method of driving the plasma display panel having a plurality of frame periods including a plurality of sub-fields, and at least one sub-field comprising:
- applying a first initialization signal to the scan electrode and a second initialization signal to the sustain electrode to initialize cells during an initialization period,
- applying a scan signal to the scan electrode, and data signal to the address electrode during an address period, and
- applying sustain signals to the scan and sustain electrodes alternatively during a sustain period,
- wherein voltages of the first and second initialization signal increase gradually during a first portion of the initialization period, a voltage of the first initialization signal decreases gradually from a first voltage to a second voltage during a second portion of the initialization period and a voltage of the second initialization signal maintains a third voltage during the second portion of the initialization period;
- and
- at least one selective writing sub-field and at least one selective erasing sub-field are arranged within one frame period, and
- wherein the at least one selective erasing sub-field does not include a reset period.
An apparatus for driving a plasma display panel, comprising:
- an upper plate;
- a scan electrode and a sustain electrode formed on the upper plate;
- a lower plate;
- an address electrode formed on the lower plate;
- a scan driver applying a first initialization signal, a scan signal and a first sustain signal to the scan electrode;
- a sustain driver applying a second initialization signal and a second sustain signal to the sustain electrode;
- and
- a data driver applying a data signal to the address electrode,
- wherein the first and second initialization signals are applied to the electrodes during an initialization period and voltages of the first and second initialization signal increase gradually during a first portion of the initialization period, and the voltage of the first initialization signal decreases gradually from a first voltage to a second voltage during a second portion of the initialization period and the voltage of the second initialization signal maintains a third voltage during the second portion of the initialization period, and
- further comprising at least one frame period having a plurality of sub-fields, wherein at least one selective writing sub-field and at least one selective erasing sub-field are arranged within one frame period.
Dependencies are inferred from the claim text.