Electric lamp and discharge devices: systems – Plural power supplies – Plural cathode and/or anode load device
Patent
1977-12-14
1980-01-22
Smith, Alfred E.
Electric lamp and discharge devices: systems
Plural power supplies
Plural cathode and/or anode load device
340811, 340769, H05B 3700, H05B 3900, H05B 4100
Patent
active
041852303
ABSTRACT:
A gas discharge display panel has a glow transfer device extending along one or both edges of the panel and consisting of a row, or rows, of cavities extra to the display. One electrode of the, or each, transfer device is common to the conductor associated with the display cavities at that coordinate and the other electrode is grouped with others in threes to a transfer conductor so that three-phase addressing of the transfer conductors causes a transfer glow to move along from cavity to cavity. The transfer glow changes the potential of said common conductor to enable discharges to form in the associated display cavities suitably addressed by potentials applied to selected ones of their other conductors. One transfer device can be used for writing and the other, a short time later, for erasing, thereby providing a variable brightness display.
REFERENCES:
patent: 3735183 (1973-05-01), Walters
patent: 3787753 (1974-01-01), Walters
patent: 3789265 (1974-01-01), Holz et al.
patent: 3989974 (1976-11-01), Tottori et al.
Ferranti Limited
Smith Alfred E.
Wise Robert E.
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