Method for driving plasma display panel
View Patent ↗Disclosed is a method for driving a plasma display panel in which a plurality of first electrodes and second electrodes are arranged parallel to each other, a plurality of third electrodes are arranged to cross the first and second electrodes, and discharge cells defined with areas in which the electrodes cross mutually are arranged in the form of a matrix. According to the driving method, a reset period is a period during which the distribution of wall charges in the plurality of discharge cells is uniformed. An addressing period is a period during which wall charges are produced in the discharge cells according to display data. A sustain discharge period is a period during which sustain discharge is induced in the discharge cells in which wall charges are produced during the addressing period. The driving method in accordance with the present invention comprises a step of applying a first pulse in which an applied voltage varies with time so as to induce first discharge in the lines defined by the first and second electrodes, and a step of applying a second pulse in which an applied voltage varies with time so as to induce second discharge as erase discharge in the lines defined by the first and second electrodes. These steps are carried out during the reset period.
1. A method for driving a plasma display panel having first and second parallel electrodes, comprising:
producing a reset discharge, including inducing a first discharge by a first pulse in which an applied voltage varies with time in a positive direction and inducing a second discharge by a second pulse in which an applied voltage varies with time in a negative direction, the first discharge being induced by said first pulse applied to the second electrode and which rises from a predetermined potential in the positive direction while the first electrode is set to a lower potential than the predetermined potential; and
producing an addressing discharge to write display data and a sustain discharge to cause a display image to glow, according to the display data.
2. A method for driving a plasma display panel, comprising:
performing a reset discharge, an addressing discharge for writing display data and a sustain discharge for allowing a display image to glow, according to the display data, wherein:
said reset discharge includes a first discharge induced by a first pulse in which an applied voltage varies with time in a first direction and a second discharge induced by a second pulse in which an applied voltage varies with time in a second direction, opposite to the first direction,
the applied voltage of said first pulse rises until reaching a first potential and has a predetermined polarity with respect to a second potential, attained before the application of said first pulse, and
said second pulse has a polarity opposite to the predetermined polarity of said first pulse with respect to said second potential and falls until reaching a potential that is lower than an unselected potential and higher than a selected potential for performing said addressing discharge.
3. A method for driving a plasma display panel according to claim 2 , wherein said second pulse is applied after said first pulse is applied and said first potential, attained by the rise of the applied voltage of the first pulse, is lowered to said second potential.