EINGABE- UND TREIBERANORDNUNG FUER GASENTLADUNGS-ANZEIGETAFEL

摘要

Isolation circuits for low level to high level coupling are co-packaged with selection logic circuits and multiple high voltage switching line driver circuits of a gas discharge display panel. The package is an all solid-state cost-reduced configuration subject to enhanced flexibility of operation. The high voltage switching line driver circuits operate in bistable mode and receive selective low voltage pre-conditioning during quiescent sustaining phases (dead times) of write/erase cycles of panel discharge manipulation. The selectively pre-conditioned switching circuits operate in parallel, during the active phase of the write/erase cycle, to control selective write/erase conditioning of multiple panel sites. The isolation circuits are enabled and disabled at discrete phases of a floating reference potential which tracks the sustaining voltage. Consequently, coupling between low level digital sources, selection decoding circuits and drive switching circuits occurs only during quiescent phase (dead time) of the sustaining voltage. Since the isolation circuits, selection circuits and drive switching circuits are capable of extremely fast pre-conditioning operation in comparison to the minimum duration of a write/erase cycle (nanoseconds compared to multi-microseconds), it is possible to selectively precondition latching elements associated with an entire line of panel sites (row or column), or any fraction thereof, and thereby manipulate any part or the whole of a line of panel discharge sites in each write/erase cycle.