Electric lamp and discharge devices: systems – Plural power supplies – Plural cathode and/or anode load device
Patent
1976-07-02
1978-07-04
Tubbesing, T.H.
Electric lamp and discharge devices: systems
Plural power supplies
Plural cathode and/or anode load device
340166EL, 340324M, 340343, H05B 3700
Patent
active
040990974
ABSTRACT:
A driving and addressing circuit for applying sustaining, writing and erasing voltages to the cells of a multicelled gas discharge display/memory panel. The voltage generating circuitry is isolated from the panel by a pair of diodes individual to each electrode in the panel. Only the sustainer circuits and the diodes carry the relatively high sustainer currents so that the addressing circuits can be high impedance, low current devices. Switching means is provided between the electrodes and a diode clamp to limit the voltage applied to the cell to the maximum sustainer potential when the switching means is turned on. The switching means is turned off during the "write" addressing to allow the voltage applied to the cell to exceed the sustainer potential. In one embodiment, the switching means comprises a pair of switches, each one connected to all of the electrodes in one electrode array. In another embodiment, a single switch is connected to all the electrodes in one electrode array.
REFERENCES:
patent: 3840779 (1974-10-01), Schermerhorn
patent: 3851210 (1974-11-01), Schermerhorn
patent: 3851212 (1974-11-01), Umeda et al.
patent: 3908151 (1975-09-01), Schermerhorn
patent: 4011558 (1977-03-01), Sharpless
Schermerhorn Jerry D.
Slottow Hiram G.
Owens--Illinois, Inc.
Tubbesing T.H.
Wilson David H.
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