Plasma display and drive method for use on a plasma display

A plasma display comprising:

• a plasma display panel;
• and
• a driving section for driving the plasma display panel by segmenting one field of display screen into a plurality of sub-fields weighted based on intensity level;
• the plasma display panel having
• first and second substrates arranged opposite to each other;
• a plurality of surface-discharge electrode pairs formed with scan electrodes and sustain electrodes that are arranged parallel one with another with a discharge gap, on an opposed surface of the first substrate to the second substrate;
• a plurality of data electrodes provided in a form intersecting with the surface-discharge electrode pairs, on an opposed surface of the second substrate to the first substrate;
• a plurality of unit cells formed at intersections of the plurality of surface-discharge electrode pairs and the plurality of data electrodes;
• a discharge gas filled between the first substrate and the second substrate, including an interior of the unit cells;
• a first dielectric layer covering the plurality of surface-discharge electrode pairs;
• and
• a second dielectric layer covering the plurality of data electrodes;
• the driving section
• setting a scanning time period for applying, line-sequentially for every sub-field, a scan pulse to the scan electrodes and, simultaneously, applying a display data pulse synchronous with the scan pulse to the data electrodes, thereby selecting a unit cell and causing a write discharge in the selected unit cell, and a sustaining time period for applying a sustain pulse alternately to the sustain electrodes and the scan electrodes and causing a sustain discharge within the unit cells;
• wherein a sustain-discharge emission intensity ratio control section is provided to set, for every pulse, a charge-recovering time period for recovering a charge on a capacitance component of the plasma display panel and a clamp timing period for applying a predetermined sustain voltage to the sustain electrodes or the scan electrodes after the charge-recovering time period through clamp start timing, and to set a sustain-discharge emission crest value ratio, as a ratio of a crest value of a discharge emission waveform in the clamp timing period to a crest value of a discharge emission waveform in the charge-recovering time period, smaller than 1.

A drive method for use on a plasma display, the plasma display comprising:

• a plasma display panel;
• and
• a driving section for driving the plasma display panel by segmenting one field of display screen into a plurality of sub-fields weighted based on intensity level;
• the plasma display panel having
• first and second substrates arranged opposite to each other;
• a plurality of surface-discharge electrode pairs formed with scan electrodes and sustain that are arranged parallel one with another with a discharge gap, on an opposed surface of the first substrate to the second substrate;
• a plurality of data electrodes provided in a form intersecting with the surface-discharge electrode pairs, on an opposed surface of the second substrate to the first substrate;
• a plurality of unit cells formed at intersections of the plurality of surface-discharge electrode pairs and the plurality of data electrodes;
• a discharge gas filled between the first substrate and the second substrate, including an interior of the unit cells;
• a first dielectric layer covering the plurality of surface-discharge electrode pairs;
• and
• a second dielectric layer covering the plurality of data electrodes;
• the driving section
• setting a scanning time period for applying, line-sequentially for every sub-field, a scan pulse to the scan electrodes and, simultaneously, applying a display data pulse synchronous with the scan pulse to the data electrodes, thereby selecting a unit cell and causing a write discharge in the selected unit cell, and a sustaining time period for applying a sustain pulse alternately to the sustain electrodes and the scan electrodes and causing a sustain discharge within the unit cells;
• the method characterized by:
• setting, for every pulse, a charge-recovering time period for recovering a charge on a capacitance component of the plasma display panel and a clamp timing period for applying a predetermined sustain voltage to the sustain electrodes or the scan electrodes after the charge-recovering time period through clamp start timing, and to set a sustain-discharge emission intensity ratio, as a ratio of a maximal discharge intensity in the clamp timing period with reference to a discharge intensity in the clamp start timing to a maximum discharge intensity in the charge-recovering time period, at a value that a discharge in the clamp timing period is to spread up to an end of the unit cell.

A drive method for use on a plasma display, the plasma display comprising:

• a plasma display panel;
• and
• a driving section for driving the plasma display panel by segmenting one field of display screen into a plurality of sub-fields weighted based on intensity level;
• the plasma display panel having
• first and second substrates arranged opposite to each other;
• a plurality of surface-discharge electrode pairs formed with scan electrodes and sustain electrodes that are arranged parallel one with another with a discharge gap, on an opposed surface of the first substrate to the second substrate;
• a plurality of data electrodes provided in a form intersecting with the surface-discharge electrode pairs, on all opposed surface of the second substrate to the first substrate;
• a plurality of unit cells formed at intersections of the plurality of surface-discharge electrode pairs and the plurality of data electrodes;
• a discharge gas filled between the first substrate and the second substrate, including an interior of the unit cells;
• a first dielectric layer covering the plurality of surface-discharge electrode pairs;
• and
• a second dielectric layer covering the plurality of data electrodes;
• the driving section
• setting a scanning time period for applying, line-sequentially for every sub-field, a scan pulse to the scan electrodes and, simultaneously, a display data pulse synchronous with the scan pulse to the data electrodes, thereby selecting a unit cell and causing a write discharge in the selected unit cell, and a sustaining time period for applying a sustain pulse alternately to the sustain electrodes and the scan electrodes and causing a sustain discharge within the unit cells;
• the method characterized by:
• setting, for every pulse, a charge-recovering time period for recovering a charge on a capacitance component of the plasma display panel and a clamp timing period for applying a predetermined sustain voltage to the sustain electrodes or the scan electrodes after the charge-recovering time period through clamp start timing, and to set a sustain-discharge emission crest value ratio, as a ratio of a crest value of a discharge emission waveform in the clamp timing period to a crest value of a discharge emission waveform in the charge-recovering time period, smaller than 1.