US 2003/0080928 A1 · Driving method of AC-type plasma display panel

Abstract

A method for driving an alternating current (AC) plasma display panel is provided which is capable of making sustaining light emission inconspicuous caused by erroneous discharge during a period when supply power becomes stable even if erroneous discharge occurs due to an influence of residual charges produced at a time of starting operations of the AC plasma display panel. A driving method for one frame is changed between a period (supply power stability waiting period) required until the supply power becomes stable and a display period. Time required until a voltage becomes stable is for example 0.5 seconds to 1 second after power-ON. In a field during this period, one field is divided into a plurality of sub-fields and the number of repeated pulses is smaller during a sustaining period of each sub-field than that of repeated pulses during a sustaining period of a sub-field in the display period. For example, no sustaining pulse is fed to a scanning electrode. As a result, sustaining light emission becomes inconspicuous even if the erroneous discharge occurs due to an influence of the residual charges.

Claims14

Dependent claims

A method for driving an alternating current type plasma display panel to have said alternating current plasma display panel perform gray-scale display by dividing one field for displaying one screen into n-pieces (“n” is a natural number) of sub-fields and by setting a number of times of light emission in said sub-fields at values of two kinds or more, said method comprising:

a step of setting a first period during which predetermined time elapses after a start of operations of said alternating current plasma display panel and a second period during which display corresponding to an image signal is performed on said alternating current plasma display panel after a lapse of said first period;
and
a step of making a total number of sustaining light emissions contained in each field during said first period be smaller than a total number of sustaining light emissions contained in each field during said second period.

A method for driving an alternating current type plasma display panel which comprises a first substrate and a second substrate being opposed to each other, a plurality of pairs of a scanning electrode and a sustaining electrode formed respectively on said first substrate, such that surface discharge is performed between each other, and a plurality of data electrodes formed on said second substrate, in such a manner to intersect said scanning electrode and said sustaining electrode, said method to have said alternating current plasma display panel perform gray-scale display by dividing one field for displaying one screen into n-pieces (“n” is a natural number) of sub-fields and by setting a number of times of light emission in said sub-fields at values of two kinds or more, said method comprising:

a step of setting a first period during which predetermined time elapses after a start of operations of said alternating current plasma display panel and a second period during which display corresponding to an image signal is performed on said alternating current plasma display panel after a lapse of said first period:
and
a step of making a total number of sustaining light emissions contained in each field during said first period be smaller than a total number of sustaining light emissions contained in each field during said second period.

Dependencies are inferred from the claim text.

Driving method of AC-type plasma display panel

Life of this patent

Driving method of AC-type plasma display panel

Life of this patent

Abstract

Claims14