Browse Prior Art Database

Erase Depolarizer

IP.com Disclosure Number: IPCOM000064346D
Original Publication Date: 1985-Jul-01
Included in the Prior Art Database: 2005-Feb-18

Publishing Venue

IBM

Related People

Authors:
Criscimagna, TN [+details]

Abstract

As the resolution of a plasma panel increases, one of the attendant problems relates to selective erase. Classical plasma erase theory teaches that a cell is erased when its wall charge is reduced to a level below a threshold value, even if not to zero; whatever residual wall charge remains after the erase firing should be quickly reduced to a low OFF value within a few sustain cycles. However, if a cell is erased with very little ambient avalanche activity, this residual persists for a long time and can be the partial cause of the "erased" cell turning back ON when immediate adjacent cells are written, a phenomenon known as the "pass" (pattern and sequence sensitivity) effect. The ensuing description relates to selective erasure of a large size, high resolution, plasma display panel. Fig.