Electric lamp and discharge devices: systems – Plural power supplies – Plural cathode and/or anode load device
Patent
1986-07-07
1987-09-08
Dixon, Harold
Electric lamp and discharge devices: systems
Plural power supplies
Plural cathode and/or anode load device
340771, 340776, G09G 310
Patent
active
046926658
ABSTRACT:
A power consumption of a plasma discharge cells arranged in columns and lines is reduced by, while applying a scan pulse to the cell lines sequentially, applying a high voltage pulse and a low voltage pulse to those of cell columns, which are connected to plasma display cells to be illuminated, prior to and after an initiation of gas discharge in those cells, respectively. Display signal including the high voltage pulse and the low voltage pulse is derived from a circuit comprising a first transistor, a second and third transistors having sources connected directly or through a diode to a drain of the first transistor, means for applying the high voltage to a drain of the second transistor and means for applying the low voltage to a drain of the third transistor, the second and third transistors being operated alternatively to provide the display signal at the drain of the first transistor.
REFERENCES:
patent: 3551721 (1970-12-01), Holz
patent: 3614509 (1971-10-01), Wilson
patent: 4384287 (1983-05-01), Sakuma
An ac-Refresh Panel with High-Voltage CMOS Drivers and Unbalanced Power Supplies, by: H. Sakuma et al., ISSN0097 . . . , pp. 99-102.
Dixon Harold
NEC Corporation
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