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US 2002/0171609 A1Published application
Driving method of plasma display panel
AssigneeNEC Corporation
InventorYoshito Tanaka
Life of this patent
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AssigneeNEC Corporation
InventorYoshito Tanaka
Estimating the term…
In a plasma display panel driving method, during a selection period B, the potential of sustain electrodes 3 are fixed to a first auxiliary scan voltage Vnsw once. Thereafter, in the sustain electrode 3i corresponding to an (i)th scan electrode 2i in the scanning order for applying the scan pulse Vw, the sustain electrode potential is sequentially changed to a second auxiliary scan voltage Vpsw at a timing which is later than the application of the (i)th scan pulse Vwi by a half of the pulse width of the (i)th scan pulse Vwi. The first auxiliary scan voltage Vnsw is a voltage which never generates a surface electric discharge between the scan electrode 2 and the sustain electrode 3 even if a space electric discharge is generated between the data electrode 5 and the scan electrode 2. The second auxiliary scan voltage Vpsw is a voltage which can ensure such a relation that no electric discharge occurs with only a voltage difference between the scan pulse Vw and the second auxiliary scan voltage Vpsw, but a surface electric discharge occurs between the scan electrode 2 and the sustain electrode 3 only when a large amount of active particles exist in the electric discharge space. The cost for the driver or the like can be reduced without giving an adverse influence such as luminance deterioration to characteristics.
A plasma display panel driving method for driving a plasma display panel of a matrix display scheme which includes first and second substrates located to oppose each other, a plurality of first electrodes provided on a surface of said first substrate opposing said second substrate and extending in parallel in a row direction, a plurality of second electrodes extending in parallel to said first electrodes, each of second electrodes being paired with a corresponding one of said first electrodes so that a display line is constituted by a gap between the first electrode and the second electrode adjacent to each other, a plurality of third electrodes provided on a surface of said second substrate opposing said first substrate and extending in a column direction extending orthogonally to an extending direction of said first and second electrodes, and one display cell provided at each intersection between said first and second electrodes and said third electrodes, wherein a display is controlled on the basis of whether or not an electric discharge had occurred between said first electrode and said third electrode during an addressing period, the plasma display panel driving method comprising, during said addressing period, the step of applying a voltage generating a space electric discharge, between the first electrode and the third electrode in the display cell to be displayed, while maintaining a potential of the second electrode at a first potential which does not generate a surface electric discharge between the first electrode and the second electrode, and the step of changing the potential of the second electrode in the display cell to be displayed, to a second potential which generates the surface electric discharge between the first electrode and the second electrode.
Dependencies are inferred from the claim text.