Drive system for a thin-film el panel

Details Drive system for a thin-film el panel Drive system for a thin-film el panel

1987-04-28

1989-09-12

Griffin, Robert L.

Electric lamp and discharge devices: systems

Plural power supplies

Plural cathode and/or anode load device

340781, 34082581, G09F 900

Patent

active

048663484

ABSTRACT:
A drive circuit for a thin-film electroluminescent (EL) matrix display panel includes an odd side N-ch high voltage MOS driver, and an odd side P-ch high voltage MOS driver connected to odd number scanning electrodes of the thin-film electroluminescent (EL) matrix display panel. Even number scanning electrodes of the thin-film electroluminescent (EL) matrix display panel are connected to an even side N-ch high voltage MOS driver and an even side P-ch high voltage MOS driver. The four MOS drivers are effectively controlled to perform an alternating current driving of the thin-film electroluminescent (EL) matrix display panel. A source level switching circuit is connected to the odd side and even side N-ch high voltage MOS drivers so as to switch the source voltage in synchronization with the field driving of the thin-film electroluminescent (EL) matrix display panel.

REFERENCES:
patent: 3885196 (1975-05-01), Fischer
patent: 4032818 (1977-06-01), Chan
patent: 4338598 (1982-07-01), Ohba et al.
patent: 4485379 (1984-11-01), Kinoshita et al.
Nikkei Electronics, Apr. 2, 1979, "Practical Applications of Thin-Film Electroluminescent (EL) Character Display".

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