US 7,068,244 B2 · Plasma display panel device and its drive method

Abstract

It is the object of the invention to provide a PDP apparatus and a driving method that can apply pulses at high speeds and can display high-definition, high-quality images by allowing discharge cells to emit light with high luminance and high efficiency. To achieve the object, the pulse has (i) a first waveform portion where a first voltage, an absolute value of which is no smaller than a discharge start voltage, is applied and (ii) a second waveform portion where a second voltage, an absolute value of which is greater than the absolute value of the first voltage, is applied, the second waveform portion following the first waveform portion, and the second waveform portion starts before a discharge delay time elapses from a start of the first waveform portion. Also to achieve the object, in a PDP having an electrode structure in which each electrode is divided into a plurality of line electrodes, the applied pulse has (i) a first waveform portion where a first voltage, an absolute value of which is no smaller than a discharge start voltage, is applied and (ii) a second waveform portion where a second voltage, an absolute value of which is greater than the absolute value of the first voltage, is applied, the second waveform portion following the first waveform portion.

Claims50

Dependent claims

A plasma display apparatus comprising:

a plasma display panel including a pair of substrates between which a pair of electrodes are formed, a plurality of discharge cells being formed along the pair of electrodes;
and
a driving circuit that drives the plasma display panel by selectively writing information onto the plurality of discharge cells, then causing cells, on which the information is written, to emit light by applying a sustain pulse to the pair of electrodes, wherein
the sustain pulse applied by the driving circuit has (i) a first waveform portion where a first voltage, an absolute value of which is no smaller than a discharge start voltage, is applied and (ii) a second waveform portion where a second voltage, an absolute value of which is greater than the absolute value of the first voltage, is applied, the second waveform portion following the first waveform portion, and
the second waveform portion starts before a discharge delay time elapses since a start of the first waveform portion.

2 more elements

A plasma display apparatus comprising;

a plasma display including a pair of substrates between which a pair of electrodes are formed in parallel with each other, with a plurality of discharge cells formed along the pair of electrodes;
and
a driving circuit that drives the plasma display by selectively writing information onto the plurality of discharge cells, then causing cells, on which the information is written, to emit light by applying a sustain pulse to the pair of electrodes, wherein
each of the electrodes is, in each discharge space, divided into a plurality of line electrodes that extend along the electrodes,
the sustain pulse applied by the driving circuit has (i) a first waveform portion where a first voltage, an absolute value of which is no smaller than a discharge start voltage, is applied and (ii) a second waveform portion where a second voltage, an absolute value of which is greater than the absolute value of the first voltage, is applied, the second waveform portion following the first waveform portion, and
the second waveform portion starts before a discharge delay time elapses since a start of the first waveform portion.

3 more elements

Dependencies are inferred from the claim text.

Plasma display panel device and its drive method

Life of this patent

Plasma display panel device and its drive method

Life of this patent

Abstract

Claims50