Plasma display panel device

A display device for displaying an image corresponding to an input image signal, based on pixel data of pixels derived from the input image signal, the display device being operated with a plurality of subfields, the plurality of subfields being obtained by dividing one field display period by a certain number, each of the plurality of subfields including an addressing interval and a sustain interval, the plurality of subfields consisting of a first subfield to a last subfield, the display device comprising:

• a plasma display panel having a row direction and a column direction, the row direction corresponding to a display line direction of the plasma display panel, the plasma display panel including:
• a front substrate having an outer surface and an inner surface,
• a plurality of row electrodes extending in the row direction on the inner surface of the front substrate, the plurality of row electrodes being parallel to each other and spaced from each other in the column direction, each display line of the plasma display panel being defined by paired two adjacent row electrodes, the plurality of row electrodes defining a first display line to a last display line, one of each said paired two adjacent row electrodes being used in a next paired two adjacent row electrodes to define a next display line,
• a rear substrate having an outer surface and an inner surface such that the inner surface of the rear substrate faces the inner surface of the front substrate, a discharge space being formed between the inner surface of the front substrate and the inner surface of the rear substrate,
• a dielectric layer formed on the inner surface of the front substrate for covering the plurality of row electrodes,
• a plurality of column electrodes extending in the column direction on the inner surface of the rear substrate, the plurality of column electrodes being parallel to each other and spaced from each other in the row direction,
• a plurality of unit light-emission areas formed in the discharge space at intersections of the plurality of row electrodes and column electrodes such that two said row electrodes and one said column electrode are associated with each said unit light-emission area,
• a partition wall matrix provided between the front and rear substrates for partitioning the plurality of unit light-emission areas from each other,
• a plurality of separation walls provided between the front and rear substrates such that each said separation wall divides each said unit light-emission area into a first discharge cell, in which discharge occurs across the paired two adjacent row electrodes associated with the each unit light-emission area, and a second discharge cell, in which discharge occurs across one of the paired two adjacent row electrodes and the column electrode associated with the each unit light-emission area, and
• a plurality of passages formed in the plurality of unit light-emission areas respectively, such that each said passage communicates the first discharge cell with the second discharge cell of each said unit light-emission area;
• an addressing circuit for applying a positive scan pulse to one of each said paired two adjacent row electrodes in the address interval from the first display line to the last display line sequentially, and for applying pixel data pulses derived from the pixel data to the plurality of column electrodes, for one display line at a time, in synchronization with the positive scan pulse when the plurality of column electrodes are a cathode, thereby selectively inducing address discharge in the second discharge cells;
• and
• a sustaining circuit for applying a sustain pulse to each said paired two adjacent row electrodes in the sustain interval.