Erasing of AC-excited plasma panel displays - by linearly varying voltage through diode matrix driven via two unidirectional amplifiers
The erasing system is for plasma display panels for digital readout or figure presentation etc., the panel being AC excited and having a series of distinct cells. The cell readout is erased by a signal varying linearly with time approaching the state at which the '0' state is switched to &...
Gespeichert in:
1. Verfasser: | |
---|---|
Format: | Patent |
Sprache: | eng ; fre |
Schlagworte: | |
Online-Zugang: | Volltext bestellen |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | The erasing system is for plasma display panels for digital readout or figure presentation etc., the panel being AC excited and having a series of distinct cells. The cell readout is erased by a signal varying linearly with time approaching the state at which the '0' state is switched to '1', the voltage increase being less than 5 x 107 V/sec. Signals are fed simultaneously to each cell via a diode network driven from two unidirectional amplifiers such that each electrode can be at one of two different voltages. The erase signal is derived from a further amplifier in parallel with one of the previous amplifiers.
La présente invention concerne une méthode d'effacement d'un panneau à plasma, excité en régime alternatif. Les cellules à effacer reçoivent une tension qui varie sensiblement linéairement en fonction du temps, dans la plage de tension qui permet l'effacement de toutes les cellules du panneau et n'atteint pas la plus faible tension d'inscription d'une cellule du panneau, la dérivée par rapport au temps de la tension d'effacement étant inférieure 5.10**7 V/s en valeur absolue. Application aux systèmes de visualisation par panneau à plasma. |
---|