Patent ID: 6597331
Filing Date: 2003-07-22
Classification: G09G

Abstract:
A method of driving a plasma display panel displaying a gray scale level by dividing a frame displaying a single picture into a plurality of subfields, each subfield being allocated with a specified number of sustain pulses to form a bit of subfield, and combining the subfields, the method comprising:a) selecting display lines to be identical in quantity to the divided subfields wherein said selected display lines have position determined based on the specified number of sustain pulses, addressing for designating pixels of the selected display lines to be displayed and displaying each subfield allocated for said selected display lines; b) shifting downwardly or upwardly by a predetermined number of said display lines from said selected display lines for at least a sustain pulse period unit, selecting display lines again to be identical in quantity to the divided subfields wherein said selected display lines have position determined based on the specified number of sustain pulses, addressing for designating pixels of the again selected display lines to be displayed and displaying said each subfield allocated for said again selected display lines; and c) repeating said shifting, said selecting again, said addressing and said displaying in said step b) until each of said subfields is completely displayed with regard to all display lines; wherein one of said bits of subfield is largest, an idle period being at least equal to or longer than a display period of the one largest bit of subfield, said idle period being from when all sub fields allocated to one of the display lines of one frame have been completely displayed to when said one of said display lines for subfields of a following frame start to display.