Apparatus and method for operating plasma display panel

Abstract

An apparatus and method for operating a plasma display panel (PDP) is capable of removing or preventing peaking noise or voltage spike. After substantial video data has been completely recorded in the address electrode and / or after the last scan pulse or signal on the last scan electrode, the apparatus floats the address electrode or maintains the address electrode at a predetermined voltage, such that it prevents peaking noise from being received from the scan electrode and the sustain electrode, resulting in no erroneous discharge. As a result, the apparatus improves an image quality of the PDP, and increases operation efficiency of the PDP including use of single scan rather than dual scan.

Description

technical field [0001] The present invention relates to a plasma device, in particular to a plasma display panel driving device and its method. Background technique [0002] Generally, a plasma display device (Plasma Display Panel Device: hereinafter referred to as "PDP") uses vacuum ultraviolet rays (VUV) with a wavelength of 147nm generated when He+Xe, Ne+Xe or He+Xe+Ne gas is discharged to make phosphors illuminated, thereby displaying text or picture table picture picture. FIG. 1 shows a method of providing gray scales in a PDP. [0003] as it should picture As shown, one frame is divided into a plurality of subfields with different light emitting times, and the divided subfields are driven according to a time-division scheme. Each of the above subfields includes: a reset period R for generating discharge on average, an address period A for selecting a discharge cell, and a sustain period S for realizing grayscale according to the number of discharges. [0004] For...

AI Technical Summary

Problems solved by technology

In the above-mentioned sustain period S, even if the sustain pulse sus is applied to the above-mentioned scan electrode Y and the sustain electrode Z, the sustain discharge will not be normally generated, which will cause the image quality of the plasma display panel to deteriorate.

[0013] If the above-mentioned peak noise (Pn) or voltage spike occurs on the plasma display panel, excessive wall charge is formed on the above-mentioned scan electrode Y and sustain electrode, resulting in overdischarge, which may cause sputtering of bright spots.

Alternatively, if the wall charge is eliminated by the above-mentioned peak noise (Pn), there will be a problem that the sustain discharge becomes weak and misdischarge occurs, and the luminance characteristics and image quality characteristics of the plasma display panel deteriorate.

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