FIELD: gas-discharge engineering; display systems including color video modules and shared screens. SUBSTANCE: zero voltage level is shaped across all display and address electrodes within time not shorter than that required for discharge deionization so as to ensure negative-polarity residual charge across common display electrodes; after processing mode, common erasing mode is restarted to ensure positive-polarity residual charge across common display electrodes. EFFECT: improved contrast of image and reliability of panel control. 2 cl, 2 dwg
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