Patent ID: 6411268
Filing Date: 2002-06-25
Classification: G09G

Abstract:
A plasma display unit having a plurality of surface-discharge electrode pairs of scanning electrodes and sustaining electrodes extending parallel to a row direction and juxtaposed in a column direction, a plurality of data electrodes extending parallel to the column direction and juxtaposed in the row direction and defining pixels at positions where the data electrodes cross said surface-discharge electrode pairs, and a discharge space positioned in a gap between said data electrodes and said surface-discharge electrode pairs and containing a phosphor therein, the arrangement being such that scanning pulses are successively applied to said scanning electrodes and data pulses depending on an image are successively applied to said data electrodes to write wall charges in pixels corresponding to the image, and sustaining pulses flowing in alternately inverted directions are applied to said surface-discharge electrode pairs to cause an electric discharge in the positions of the pixels in which the wall charges are written, for thereby enabling the phosphor in said discharge space to emit light for thereby displaying a dot-matrix image, said plasma display unit comprising:first set column writing means for applying data pulses of a predetermined polarity to said data electrodes in first set columns for writing the wall charges; second set column writing means for applying data pulses whose positive and negative polarities are opposite to the data pulses applied by said first set column writing means, to said data electrodes in second set columns other than said first set columns for writing the wall charges; first set row writing means for applying scanning pulses which are inverted between positive and negative polarities in first and second states which occur alternately, to said scanning electrodes in first set rows for writing the wall charges; and second set row writing means for applying scanning pulses which are inverted between positive and negative polarities in said first and second states in opposite relation to the polarities of the scanning pulses applied by said first set row writing means, to said scanning electrodes in second set rows other than said first set rows for writing the wall charges.